EPA 440/1-76/047-a
 Group I, Phase II

     Development Document for Interim Final
   and Proposed Effluent Limitations Guidelines
     and Proposed New Source Performance
              Standards for the
    BLEACHED KRAFT, GROUNDWOOD,
       SULFITE, SODA, DEINK AND
     NON-INTEGRATED PAPER MILLS
                  Vol. 11
               Segment of the
     PULP, PAPER, AND PAPERBOARD
            Point Source Category
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                JANUARY 1976

-------
           DEVELOPMENT DOCUMENT
                   for
        INTERIM FINAL AND PROPOSED
     EFFLUENT LIMITATIONS GUIDELINES
                   and
     NEW SOURCE PERFORMANCE STANDARDS
                 for the
BLEACHED KRAFT, GROUNDWOOD, SULFITE, SODA,
  DEINK, AND NON-INTEGRATED PAPER MILLS
              SEGMENT OF THE
    PULP, PAPER, AND PAPERBOARD MILLS
          POINT SOURCE CATEGORY
      VOLUME II  SECTIONS VIII - XV
             Russell  E. Train
              Administrator
       Andrew W. Breidenbach, Ph.D
         Assistant Administrator
    for Water and Hazardous materials
               Allen Cwyin
  Director, Effluent Guidelines Division
                Craig Vogt
              Richard Kinch
             Project Officers
               January 1976
       Effluent Guidelines Division
 Office of Water and Hazardous Materials
  U.S. Environmental Protection Agency
         Washington, D. C.  20460

-------
                             SECTION VIII

               COSTS, ENERGY, NON-WATEB QUALITY ASPECTS


                  RATIONALE FOR DEVELOPMENT OF COSTS

This  section  of  the  report  summarizes  the  costs of internal and
external effluent  treatment  associated  with  technology  levels  of
BPCTCA,  BATEA,  and  New  Source  Standards of Performance.  The cost
functions  used  for  conventional  treatment  methods  are  based  on
industry  experience  with  full  scale  installations  and  equipment
suppliers' estimates.  For more advanced processes, where  full  scale
installations  are  few or nonexistent, the cost estimates are largely
based on experience with pilot installations and on estimates from and
discussions with equipment suppliers.

It should be recognized that actual treatment costs vary  widely  from
mill to mill depending upon the design and operation of the production
facilities  and  local  conditions.   Furthermore,  effluent treatment
costs reported by the industry vary greatly from one  installation  to
another  depending  upon  bookkeeping  procedures.   The  estimates of
effluent volumes and treatment methods described in this  section  are
intended  to  represent  those  of  the  subcategories covered by this
report.  However, the  industry  is  somewhat  heterogeneous  in  that
almost  every  installation  has  some  uniqueness  which  could be of
importance  in  assessing  effluent  treatment  problems   and   their
associated costs.

For  each  technology level, costs of both internal and external tech-
nology were established for various sizes of mills in each subcategory
in order to reflect the significance of size of mill upon the costs of
implementing the technology.

The number of mill sizes and their tonnage were selected from the size
range of existing mills so that the ratio of  one  size  to  the  next
approximated  3:1.   The  selected mill sizes for each subcategory are
shown in Table 130.  In the case of NSPS, costs are presented only for
the larger sizes because it is most unlikely,  for  economic  reasons,
that  "small"  or  "very  small"  new  mills  will  be  built  in  the
foreseeable future.

All costs in this document are expressed in terms of June 1974  prices
which   may  be  adjusted  to  current  prices  by  using  appropriate
engineering cost indices.

All of the internal controls used in developing the costs  are  listed
in  Table  131  and Tables 132-148 present by subcategory the internal
controls which were used to determine the costs of BPCTCA, BATEA,  and
BADT.   Table 149 presents the external technologies used in determing
the costs, and  the  raw  waste  and  final  effluent  loads  used  to
determine  costs  are  shown  in Table 150.  The costs of internal and
external treatment using aerated stabilization basins for each of  the
subcategories and the costs using activated sludge in place of ASB are
                              439

-------
                                  Table  130
                        MILL SIZES SELECTED FOR COSTING

                              kkg/day (tons/day)
Subcategory

Sulfite
Dissolving Sulfite
Deink
Dissolving Kraft
Market Kraft
BCT Kraft
Fine Kraft
Groundwood Chemi-Mech.
Groundwood Thermo-Mech.
Groundwood C-M-N
Groundwood Fine
Soda
Non-Integrated Fine
Non-Integrated Tissue
Non-Integrated Tissue  (
Very
Small













14(15)
W) 14(15)

Small
145(160)

73(80)


227(250)
227(250)
• 91(100)
91(100)
68(75)
272(300)

27(30)
32(35)
32(35)
-
Medium
480(530)
499(550)
209(230)
544(600)
318(350)
608(670)
608(670)
272(300)
272(300)
136(150)
635(700)
272(300)
91(100)
100(110)
100(110)

Large


454(500)
907(1000)
635(700)
1179(1300)
1179(1300)
544(600)
544(600)
454(500)

635(700)
254(280)
408(450)
408(450)
Sulfite
Dissolving Sulfite
Deink
Dissolvi.-.g Kraft
Market Kraft
BCT Kraft

Fine Kraft
Groundwood Chemi-Mech.
Groundwood Thermo-Mech.
Groundwood C-M-N
Groundwood Fine
Soda
Non-Int.egraced Fine
Non-Integrated Tissue
Non-Integrated Tissue (F-JP)
NO. OF PAPER MCHINES USED IN COSTING

                         3

                         3
              7

              3
                         2 Tissue
            2
            2
1
5
2
2
2
3

2
3
3
                           Board
3 Tissue
2 Board
5
3
3
2
4
2
2
3
3
4 Tissue.
3 Board
9
4
4
3
6
5
5
5
5
                              440

-------
                                 Table  131
                  IDENTIFICATION OF INTERNAL TECHNOLOGY ITEMS

ITEM NO.              DESCRIPTION

   1                 Replace Flume with mechanical conveyor.
   2                 Use of steam in drum barkers.
   3                 Knoti; collection and disposal.
   4                 Fourth stage brown stock washer.
   5                 Decker filtrate for brown stock washer showers.
   6                 Close-up screen room.
   7                 Pulp mill spill collection from washers.
   8                 Pulp mill spill collection from tanks, equipment
                     and drains.
   9                 Jump stage countercurrent washing.
  10                 Evaporator surface condenser.
  11                 Steam stripping condensates and reuse.
  12                 Evaporator boilout tank.
  13                 Black liquor storage tank spill collection.
  14                 Green liquor dregs filtering.
  15                 Causticizing area spill collection system.
  16                 Evaporator condensate for causticizing makeup.
  17                 Lime mud storage pond.
  18                 Alarms on chemica.1 tanks.
  19                 Prehydrolysate disposal by burning.
  20                 MgO recovery system.
  21                 Paper machine vacuum saveall.
  22                 Paper machine flotation saveall.
  23                 Paper machine high pressure tliowers.
  24                 Pa^er machine white water showers.
  25                 Cyliner former white water showers.
  26                 Cooling water segregation and reuse.
  27                 Felt hair removal.
  28                 Vacuum pumps seal water reuse.
  29                 Paper mill stock spill collection system.
                            441

-------
                                   TAble 132

                         INTERNAL TECHNOLOGIES USED IN COSTING

                         Bleached  Kraft Dissolving  Subcategory

                  Data are percentages of total item cost.  X = 100%



Item               Pre               BPCTCA            :-,ATEA             NSPS
                                                        X                 X
                                       XXX
                                                        X                 X
                                       XXX

                                                        X                 X
                                                        X                 X
                                                        X                 X
                                       XXX
                                       XXX
                                       XXX
                                       XXX
                                       XXX
                                                         X                 X


                                                         X •                X
                                                         X                 X
                                       XXX
                                       XXX
J-.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
on
*. \j .
21.
22.
23.
24.
25.
26.
27.
28.
29.


90

33



75
50

33
33
33



33
67





50

33


                                                         X                 X
                                                         X                 X
                                     442

-------
                                  Table  133 :

                         INTERNAL TECHNOLOGIES USED IN COSTING
Item               Pre               BPCTCA            BATEA             NSPS

1.
2.                                                      XX
3.                 Qn                  X                 X                 X

4.
5.

6.                                                      X                 X
7                                                       XX

8                                                       X                 X
9*                 75                  XXX
IQ                 SO                  X                 X                 X

Market Krai.t Subcategory

Data are percentages of total Item cost. X =
Pre

90

33



75
50
33
33
33


33
50

40
BPCTCA

X

X



X
X
X
X
X


X
X

X
BATEA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
12*                33                  X                 X                 X
13*                33                  X                 X                 X
If                33                  X                 X                 X

S:

16«                                                     Y                 Y
17.                                                     x                 x
18.                ™                  XXX
19.
20.

21.
22.
23.

25."                S0                  XXX


*$*                40                  X                 X                 X
//.
28.
29.
                                    443

-------
                                    .Table  134
                          INTERNAL -TECHNOLOGIES USED IN COSTING
                                                                 700%
 Item              Pre                BPCTCA            HATEA             NSPS

 I.
 2.                                                       XX
 3                 90                  X                 X                 X
 4.                                                       XX
.5.                 33                  X                 X                 X

 6.                                                       XX
 7.                                                       XX
 8.                                                       XX
 9                 75                  XXX
 10.                50                  X                 X-                 X
BCT Kraft Subcategory

e percc-.ntages of total item cost. X >
BPCTCA

X

X



X
X
X
X
X


X
X
X
X

X

PATEA
X
X
X
X
X
X
X
X
x-
X
X
X
X
X
X
X
X
X
X
X
X
 11.
 12.                33                  X                 X                 X
 13.                33                  X                 X                 X
 14                33                  XXX
 is!                                                      *                 x

                                                                           X
 17.                                                      X                 X
 18.                33                  X                 X                 X
 19.
 20.

 21.                90
 22.
 23.                20                  X                 X                 X
 24.                20                  X                 X                 X
 25.

 26.
 27.
 28.                33                  X                 X                 X
 29.                                                      X                 X
                                     444

-------
                                     Table 135
                         INTERNAL TECHNOLOGIES USED IN COSTING

                               Flue Kraft Subcategory

                  Data are percentages of total item cost.  X «= 100%



Item               Pre               BPCTCA            BATEA             NSPS
                                                        XX
                                      X           ,      X                 X
                                                        XX
                                      X                 X                 X

                                                        XX
                                                        XX
                                                        XX
                                      XXX
                                      3                 X                 X
                                      XXX
                                      X                 X                 X
                                      X                 X                 X
                                                        X                 X

                                                        X                 X
                                                        X                 X
                                      X                 X                 X
1.
2. .
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24!
25.


90

33



X
75

50
50
33



33



X
X


                                      XXX
                                      XXX
nf                                                      X                 X
27*                40                  X                X                 X
,£•                50                  XXX
                                                        v                 X
29.                                                     A                 A
                                    445

-------
                                       Table  136
                          INTERNAL TECHNOLOGIES US"D IN COSTING

                          Groundwood Chemi/Mech. Subcategory

                   Data are percentages of total item cost.  X = 100%



 Item               Pre               BPCTCA            BATEA             NSPS

 1.
 2.                                                       XX
 3.
 A.
• 5.

 6.                                                       XX
 7.                                                       X                 X
 8.
 9.
 10.

 11,
 12.
 13.
 14.
 15.

 16.
 17.
 18>  ,               25                  XXX
 19.
 20.

 21>                 40                  X                X                 X
 22.
 23.                 25                  XXX
 24.
 25.

 26.                                                      X                 X
 Jo*                 25                  X                X                 X
                                                         X                 X
 29.                                                      *                 *
                                  446

-------
                                      Table 137
                         INTERNAL TECHNOLOGIES USED  IN  COSTING

                         GroundWDOd  Thermo/Mech.  Subcategory

                  Data are percentages of  total  item cost.   X • 100%



Item               Pre               BPCTCA             B/VTEA             NSPS

1.
2.                                                       XX
3.
4.
5.

6.                                                       XX
7.                                                       XX
8.
9.
10.

11.
12.
13.
14.
15.

16.
17.
18.                25                  X                 X                 X
19.
20.

2i.                40                  X                 X                 X
22.
23.                25                  X                 X                 X
24.
25.

26.                                                      X                 X

?a*                25                  XXX
                                                         X                 X
29.                                                      *                 *
                                  447

-------
                                      Table 138
                         INTERNAL TECHNOLOGIES USED IN COSTING

                           Groundwood C-M-N Subcategory

                  Data are percentages of  total item cost.  X =  100%



Item               Pre               BPCTCA           3AIEA              NSPS

1.
2.                                                       XX
3.
4.
5.

6.                                                       X                 X
7.                                                       XX
8.
9.
10.

11.
12.
13.
14.
15.

16.
17.
18.                25                  X                 X                 X
19.
20.

21.
22.
23.
24.
25.

26.
27.
28.
29.
40
25

25
X X
X X
X
X X
X
X
X
X
X
X
                               448

-------
                                       Table 139
                          INTERNAL TECHNOLOGIES USED IN COSTING

                              Groundwood Fine Subcategory

                   Data are percentages of total Item cost.  X = 100%



 Item               Pre               BPCTCA            'JATEA             NSPS

 I.
 2.                                                       XX
 3.
 4.
• 5.

 6.                                                       XX
 7.                                                       XX
 8.
 9.
 10.

 11.
 12.
 13.
 14.
 15.

 16.

 is!                 25                  X                 X                 X
 19.
 20.

 21.
 22.
 23.
 24.
 25.

 26.
 27.
 28.
 29.
75
25

25
X X
X X
X
X X
X
X
X
X
X
X
                                  449

-------
                                       Table 140
                         INTERNAL TECHNOLOGIES USED IN COSTING
                       Papergrade  Sulfite Subcategory
                  Data are percentages of total item cost.  X =100%


.Item               Pre               BPCTCA           BATEA             NSPS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.


50

50



50
50

25
33




33


75

33



50
33


X
X X
X
X X
X
X
X
X X
X X

X X
X X




X X


X X

X X


X
X X
X X
X

X
X
X
X
X
X
X
X
X

X
X




X


X

X


X
X
X
X
                           450

-------
                                 Table 141
                         INTERNAL TECHNOLOGIES USED IN COSTING
                        Market  Sulfite Subcategory
                  Data are percentages of total item cost.  X =100%

•Item               Pre               BPCTCA           BATEA             NSPS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.


50

50



50
50

25
33




33


75

33



50
33


X
X X
X
X X
X
X
X
X X
X X

X X
X X




X X


X X

X X


X
X X
X X
X

X
X
X
X
X
X
X
X
X

X
X




X


X

X


X
X
X
X
                             451

-------
                                  Table 142
                         INTERNAL TECHNOLOGIES USED IN COSTING
                      Low Alpha  Sulfite Subcategory
                  Data are percentages of total item cost.  X =100%

•Item               Pre               BPCTCA           BATEA             NSPS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.

X
50 X X
X
50 X X
X
X
X
50 X X
50 X X

25 X X
33 X X




33 X X

50 X X




50 X X
X
50 X X



X
X
X
X
X
X
X
X
X

X
X




X

X




X
X
X


                              452

-------
                                  Table 143
                         INTERNAL TECHNOLOGIES USED IN COSTING

                      High Alpha Sulfite Subcategory
                  Data are percentages of total item cost.  X =100%


.Item               Pre               BPCTCA           BATEA             NSPS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.


50

50



50
50

25
33



33

50





50

50



X
X X
X
X X
X
X
X
X X
X X

X X
X X



x x-

X X





X X
X
X X



X
X
X
X
X
X
X
X
X

X
X



X

X





X
X
X


                             453

-------
                                    Table  144
                         INTERNAL TECHNOLOGIES USED IN  COSTING

                                   Soda  Subcategory

                  Data are percentages of  total item  cost.   X =  100%



Item               Pre               BPCTCA             BATEA             NSPS

1.
2.
3.                 90
4.
5.                 33

6.
7.
8.
9                  75
10.                50

11.
12                 33
30*                33
14*                33
17
IS.                33
19.
20.


f\f\                 X                   XXX
23*                50                  X                 X                 X
24.
25.

26.                                                      X                 X
27.                50                  X                 X                 X
28.                50                  X                 X                 X
29.                                                      X                 X

X

X



X
X
X
X
X



X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
x
X
x
X
                                    -454

-------
                                   Table  145
                         INTFRNAL TECHNOLOGIES USED IN COSTING

                                   Deink Subcauegory

                  Data are percentages of total item cost.  X «  100%



Item               Pre               BPCTCA            BATFA              NSPS

1.
2.
3.
A.
5.

6.
7.
8.
9.
10.

11.
12.
13.
14.
15.

16.
17.
18.                33                  X                 X                 X
19.
20.

21.                75                  XXX
22.
23.                40                  X                 X                 X
24.
25.

26.                                                      X                 X
27.
28.                50                  XXX
29.                                                      x                 x
                                    455

-------
                                          Table  146
                          INTERNAL TECHNOLOGIES USED IN COSTING

                            Non-Integrated Fine Subcatcgory

                   Data are percentages of total item cost.  X = 100%



 Item               Pre               BPCTCA            BATEA             NSPS-

 1.
 2.
 3.
 4,
-5.

 6.
 7.
 8.
 9.
 10.

 11.
 12.
 13.
 14.
 15.

 16.
 17.
 18.                 25                  X                 X                 X
 19.
 20.

 21.
 22                 75                  XXX
 23!                 33                  X                 X                 X
 24.
 25.

 26.                                                       x                 x
 27                 33                  XXX
 28*.                 33                  X                 X                 X
 29.                                                       X                 x
                                    45s

-------
                                      Table  147
                         INTERNAL TECHNOLOGIES USEP IN COSTING

                           Non-Int2grated  Tissue  Subcategory

                  Do±a are percentages of total item cost.  X = 100%



Item               Pre               BPCTCA            BATEA             NSPS

1.
2.
3.
4.
5.

6.
7.
8.
9.
10.

11.
12.
13.
14.
15.

16.
17.
18.                25                  X                 X                 X
19.
20.

21.                50                  X                 X                 X
22.
23.
24.                25                  XXX
25.

26.                                                      X                 X

oo*                33                  X                 X                 X
                                                         Y                 X
29.                                                      X                 A
                                  457

-------
                                       Table  148
                         INTF.RNAL TECHNOLOGIES US.".U IN COSTING

                        Non-Integrated Tissue  (fvrp) Subcatcgory

                  Data are percentages  of total Item cost.  X = 100%



Item               Pre                BPCTCA            BATFA              NSPS

1.
2.
9
V •
4.
5.

6.
7.
8.
9.
10.

11.
12.
13.
14.
15.

16;
17.
18.                25                  X                 X                 X
19.
20.

21.                50                  X                 X                 X
22.
23.
24.                25                  X                 X                 X
25.

26.                                                       x                 x
27.
28.                33                   XXX
29.                                                       X                 X
                                   458

-------
en
CO
at oo
T3
O f"»
en r»
CO

55
4-1 CO
(U t4-| OO
C cd
•H M r-^
oo
to
O
S 4J CO
M c-t M-l 00
H U cd
tO PQ >-l Is*
O t4 r~»
o
CO
l_^
p
W
to
CT> to en
^- to 2;
r-l W 4J
O CU 4J OO
0) O ^ MH oo
f^ P*i 5 1 CO
J3 (H Cd r-l •*»
fO r*^4 HM *
r— H
M CO
W
H to
X &
W
. 4J CO
co MH oo
CO Cd
•rl (-1 l"»
P ^ ^*
CO


CO
CO
cu
CJ
o
^4
FM

4-1
•H
C








X X X X X X X
X


XXX

X X X X
X X X X X X X

X


XXX
X X X X
X X X X X X X

X


XXX

*~A
X X X x



X X X X X X X


X


X XX


X X X X

X X X X X X X


X


XXX

X X X X


S-l
CU
•H
<4-l CO
•rl C M
C H 0 (U
>> o cd o 4J
V4 iH rH 00 i-H
cd 4-> O cd C -H
C cd i-J co >iH |xi
•rt 4J ^ >-4 CO
g to vi cu o cd g
•rl cd oo 4J pq 3
rH CX 0 T3 Cd 3
(U g -H 3 ri pq cj
M 3 M rH CU CO Cd
£L| pL) P^ tO "^1 ^ ^
• ••••••
rH CN CO -3- u"! \o r-^
X X X X
X


X X

XXX
X X X X

X


X X
XXX
X X X X

X


X X


XXX



X X X X


X


X X


XXX

X X X X


X


X X

XXX











J^l
M rH CU
O rH W
CO 4J Cd 3
CO -rl IJH >4H
CU C 4-1 <4H
rl O 3 -H
CM S O Q
O r-l
00 O\ rH rH
XXX XX
X


X

XXX
X X XX

X


X
X X
X X XX

X


X


X X



X X XX


X


X


X X

X X XX


X


X

X X
C >-i
o cu
O iH
OO <4H
Cd 'r-l
r** i ^ ^
o c cd
•H Vl O r-l
4J O Cd -H U
cd 3 -ri 4-1
N cr t3 cd £-,
•H vH CU 4J M
rH ^J S 0 Cd
cd i-l t3
J-| ^^ 'Q f^ fj
g +-I O CU O
Cd 3 Cd X rl CJ
O CU rH >rl -H CU
Fn !a M S 
-------















o
S3
H
tn
O
CJ

	 a
w* '""'
IjQ
2 w
c CO
COT
O OT
>J. w
^0
^" s
T~*
£«4
(U >_ 1
MB ^1
*^r j2s
•0 ^
<£
^1
3
U
H
X

























0) on
M C 00
21 *T1

on
rx.
CO
O
o on
I? g oo
C O Is*
3 '^
O
}•< on



CO
*T3 523
O
o on
5 Q) 00
^3 fi
C ^H p-
O





•^ J2
T3 O 23
O 01
o «£< en
§ -^. oo
Tj O
O 0)
>-i 43 on
O H i-»



CO
O 0
o 0) on
js g oo
c! -H r-
3 6 f^
o a)
>-i ,c on
O cj f»





to
CO
01
o
o
cu

4-1
•H
CJ
&


XXXXXXX XXX
X XX X


XXXX X XXX


xxxxxxxxxxx

X X

X X X X X


XXXX XXX



xxxxxxxxxxx


X X


X X X X X

XXXX XXX




xxxxxxxxxxx


X X

xxxxxx_xxxxx






xxxxxxxxxxx

X X

X X X X X


XXXX XXX


ffl
w
U-t CO
•H a n
0 M O 01
>> o rt o w
H -H r-l 00 rH
rt 4-i u > MCO MI-HOI
ScoMa>ortS OHM
•H rt004JM3CQ-Urt3
rH&StJrt 3W-H<4-|t»-t
oiB-HSUpqooicw'w
H3MrHO)COrtMO3iH
p i p | p | f_o ^c *^ ^^ p | *s^ c*i f~]
• •••«»«»»OrH
rHcson-srir>vOr-»OOCT^i-HrH
X XX
X


X


X XX

X

X


X



X XX


X


X

X




X X XX


X

X X






X X XX

X

X


X X

o 2
O ill
00 ^
ti .j M
o C rt
•H u O rH
4J S rt -H O
cd 2 -H w
M :i "O rt >\ a)
iH ^ 0) -U M 0
rH 2 S O rt -H
rt " I-H -a (4
to & TJ (ii C 1
04-100) O iH
rt 3 rt X M cj c
O 01 rH ^j -H 01 -H

CN| CO "vf IO V0 t^* 00
rH rH rH i-H rH H rH
460

-------



















o
53
M
H
CO
o
CJ

52;
H
"•OQ
Eta
•r-
cco
ow
OCJ

p^
-. o cd o
I-l -H rH 00
id 4J cj cd a
C cd r4 (0 iH
•H 4J >-, MM
B co to  vO
K^4 k^« *^> t^jt 1^4 s^4
t"l rN »"t ^< i^ KN

X X

XXX X

XXX X

xxxxxxxx

X X


XXX X


X X X X X X

xxxxxxxx


X X


XXX X


X X X X X X



xxxxxxxx


X X

XXX X

X X X X X X


xxxxxxxx

X X


XXX X


X X X X X X
c
o
o
00
CO fl i-)
to O
a) -H to
4-1 4J O Cd
H cd 3 -H
•rl N CT TJ
PM J-i iH -H a)
rl rH <1) rH ^ S
6 a rH co cd
3 W 4-1 cd 3 M,M*T3
3cn-Hn-i!4-i04JUM-icd3cdX
cd>-iO3'Hoa)H'ri

• t • • • •
• • • O rH CNI CO "d" i/^
r^OOO\rH 1-HrHrHrHrH
X X







X 'X









X X












X X









X X









, a)
4-1 j-i a
0 Cd -rl
rH TJ rJ
PM C 1
0 -rl
to o C
•H 0) vH
<3 co S
. . .
\o r-» oo
rH rH rH
461

-------
o
25
M
H
CO
O
CJ
S3
H
^8
2>co
i»
1"
i"
5°
s-'p<
0>P<
SE-
•^ M
CU g
i|
M
£
W





































CO
a
CU CO
3 . oo
H CO Oc
2! .


CO
53

<1J CO
M 3 CO
!a co
co r~-
•rl 1^
H
CO
t^-
co
C/l
cu
o
o
rl
P-l

4-1
•H
G









X X X X X X
X
S*-1 S^1 *v* *«* S^* KH
»^< >^i >*S rS ?S i"<




lui tv* K«^ S*1* K^* *w*
»^i *^-* KS »"* PS rS

X XX


X X X X




M
CU
•H
tfH
•rl C
G M O
!>s O cd O
r( iH iH 00
n) 4J cj cd C
G cd i-J CO -H
•H JJ >, M CO
0 co t-i cu o cd
•H n) PO -U PQ
rH CX S U cd
CU 6 TH 3 M «
M 3 M rH CU CO
tit & P4 CO < 
                               rl
                               CU
                               CO
                               3
                              •H
                              P
                                             C
                                             0
                                     cd
                                     N
                                    •rl
                                    rH
                                     cd
                                     rl
                                                    X
X
                                                     C
                                                     o
                                                     0
                                                     CM)
                                         t-l
                                         O
                                         3
                                         cr
                                        •H
                                                     O
                                                    pq
                                             X     X
                                                           X
                                     tJ

                                     2
                                     x)
                                      
-------
                           Table  150

          RAW (09) AND FINAL  (79) WASTE CHARACTERISTICS

               Data in kl/kl
-------
PARAMETER
       Table 150 (continued)
PRETREATMENT     BPCTCA
BATEA
NSPS
Market Kraft
09 BOD
09 TSS
Flow
79 BOD
79 TSS
BCT - Kraft
09 BOD
09 TSS
Flow
79 BOD
79 TSS
Fine Kraft
09 BOD
09 TSS
Flow
79 BOD
79 TSS
60 (120)
80 (160)
332.8 (80)
54.96 (109.92)
27 --A: (54.08)
42.5 (85.0)
55.0 (110.0)
200 (50)
38.93 (77.85)
18.59 (37.18)
40.0 (80.0)
90.0 (180.0)
166.4 (40)
36.64 (73.28)
30.42 (60.84)
41 (82.0)
70 (140)
176.8 (42.5)
4.25 (8.5)
6.4 (12.8)
33.5 (67.0)
51.5 (103)
151.84 (36.5)
3.8 (7.6)
6.4 (12.8)
30.0 (60.0)
84 (168)
108.16 (26)
2.8 (5.6)
4.55 (9.1)
26.5 (53.0)
65 (130)
141.44 (34)
2.0 (4.0)
1.4 (2.8)
26.0 (52.0)
46.5 (93.0)
112.32 (27)
1.7 (3.4)
1.15 (2.3)
23.5 (47.0)
46.5 (93.0)
95.68 (23)
1.15 (2.3)
0.95 (1.9)
27.5 (55.0)
65 (130)
79.04 (19)
1.1 (2.2)
1.6 (3.2)
26.0 (52.0)
46.5 (93.0)
112.32 (27)
1.7 (3.4)
2.25 (4.5)
23.5 (47.0)
46.5 (93.0)
95.68 (23)
1.15 (2.3)
1.9 (3.8)
GW-Chemi-Mechanical
09 BOD
09 TSS
Flow
79 BOD
79 TSS
Groundwood
09 BOD
09 TSS
Flow
79 BOD
79 TSS
Groundwood
09 BOD
09 TSS
Flow
79 BOD
79 TSS
60 (120.0)
32.5 (65.0)
99.84 (24)
42 (84)
7.5 (13)
Thermo Mechanical
-
- CMN Papers
22.0 (44.0)
80 (160)
120.64 (29)
15.4 ( 30.8)
16 (32)
50.5 (101)
28 (97.0)
83.2 (20)
2.1 (4.2)
3.65 (7.3)
28.0 (56.0)
25.0 (97.0)
62.4 (15)
1.55 (3.1)
2.75 (5.5)
17.5 (35.0)
70 (140)
99 (23.8)
2.5 (5.0)
4.35 (8.7)
45 (90.0)
22.5 (45.0)
74.88 (18)
0.75 (1.5)
0.75 (1.5)
26.5 (53.0)
25.0 (50.0)
41.6 (10)
0.65 (1.3)
0.4 (0.8)
16.0 (32.0)
48.0 (96.0)
79.04 (19)
1.05 (2.1)
0.8 (1.6)
45 (90.0)
22.5 (45.0)
74.88 (18)
0.75 (1.5)
1.5 (3.0)
28.0 (56.0)
25.0 (50.0)
62.4 (15)
1.55 (3.1)
1.25 (2.5)
16.0 (32.0)
48.0 (96.0)
79.04 (19)
1.05 (2.1)
1.6 (3.2)
                              464

-------
                         Table  150  (continued)
PARAMETER      PRETREATMENT     BPCTCA             BATEA              NSPS
GW-Fine Papers
09 BOD
09 TSS
Flow
79 BOD5
79 TSS
Soda
09 BOD
09 TSS
Flow
79 BOD
79 TSS
NI Fine Papers
09 BOD
09 TSS
Flow
79 BOD
79 TSS
NI Tissue
09 BOD
09 TSS
Flow
79 BOD
79 TSS
NI Tissue (FWP)
09 BOD
09 TSS
Flow
79 GOD
79 TSS

21.0 (42.0)
65 (130)
108.16 (26)
14.7 (29.4)
13 (26)
55 (110)
150 (300)
208 (50)
46.75 (93.5)
33 (66)
17.5 (35.0)
75 (150)
108.16 (26)
17.5 (35.0)
75 (150)
17.5 (35.0)
62.5 (125)
141.44 (34)
17.5 (35.0)
62.5 (125)
20.0 (40.0)
75 (150)
141.44 (34)
20.0 (40.0)
75 (150)
17.0 (34.0)
52 (104)
90.69 (21.8)
2.25 (4.5)
4.0 (8.0)
42.5 (85.0)
105 (210)
122.7 (29.5)
3.45 (6.9)
5.15 (10.3)
10.75 (21.5)
31.0 (62.0)
62.4 (15)
2.5 (5.0)
2.65 (5.3)
11.5 (23.0)
34.0 (68.0)
95.68 (23)
2.8 (5.6)
2.9 (5.8)
14.5 (29.0)
40.0 (80.0)
95.68 (23)
2.8 (5.6)
2.9 (5.8)
16.0 (32.0)
45.0 (90.0)
74.88 (18)
1.0 (2.0)
0.75 (1.5)
30 (60)
65 (130)
95.7 (23)
1.45 (2.9)
0.95 (1.9)
9.5 (19.0)
30.0 (60.0)
38.27 (9.2)
0.75 (1.5)
0.4 (0.8)
10.0 (20.0)
28.0 (56.0)
60.32 (14.5)
1.2 (2.4)
0.6 (1.2)
13.5 (27.0)
35.0 (70.0)
60.32 (14.5)
1.2 (2.4)
0.6 (1.2
16.0 (32.0)
45.0 (90.0)
74.88 (18)
1.0 (2.0)
1.5 (3.0)
30 (60)
65 (130)
95.7 (23)
1.45 (2.9)
1.9 (3.8)
9.5 (19.0)
30.0 (60.0)
38.27 (9.2)
0.75 (1.5)
0.75 (1.5)
10.0 (20.0)
28.0 (56.0)
60.32 (14.5)
1.2 (2.4)
1.2 (2.4)
13.5 (27.0)
35.0 (70.0)
60.32 (14.5)
1.2 (2.4)
1.2 (2.4)
                           465

-------
shown  in  Tables  151  to 184.   With the exception of NSPS, costs are
cumulative.  That is, the costs   of  BATEA .include  the  capital  and
annual  costs already shown in BPCTCA and the costs for BPCTCA include
those  already  shown  for  pretreatment.   Figures   77-103   present
schematics  of  the  internal controls  used  in determing the costs.
Figures 104-118 are cost curves  for pretreatment, BPCTCA,  BATEA,  and
NSPS  and relate the costs of achieving the above levels of technology
to the size of mills for each subcategory.  It should  be  noted  that
curves  are  not  included  for   NSPS  for  those  subcategories which
included only one size of model  mill.  The  internal  treatment  costs
for  NSPS  in  Tables 151-184 are the same as for BATEA, and no credit
has been taken for the equipment or systems that would be installed if
there were no effluent limitation  requirements.   Table  185,  titled
"Internal  Effluent  Treatment Costs for NSPS", takes into account the
equipment or system that would be installed.


INTERNAL TECHNOLOGY COSTS

The internal technology systems  identified are listed  on  Table  131,
titled   "Identification  of  Internal  Technology  Items".   A  brief
description of each of these 29  systems will be found on the following
pages, and schematic drawings of the internal controls' are  shown  in
Figures 77-103.

The   operation  and  maintenance  costs  of  internal  controls  were
conservatively considered to be recovered by the mill in the forms  of
material  and/or  energy  savings for the internal technologies at all
levels.  Therefore,  the  annual  operating  costs  for  the  internal
technologies is the depreciation and interest costs.  The depreciation
costs  are  the  accounting charges which reflect the deterioration of
the capital assets over a period of years.  Straight line depreciation
has been assumed in all annual cost calculations.  The interest is the
financial charges on the capital expenditures for pollution reduction.
Depreciation and interest together are assumed to be 15 percent of the
investment costs.

The cost  of  sulfite  liquor  incineration  and/or  recovery  is  not
included  in  the  cost  tables  for the sulfite and dissolving sulfite
subcategory.  The capital cost estimate for an MgO recovery system  is
included at the bottom of each table for reference.

The  number  of  paper machines in the paper mills by  each  subcategory
will be found in Table 130.  A  very  brief  description  of  what  is
included in each of the 29 internal technology items is as  follows.
                              466

-------







































2T
HH
^^CO
^C. £—4
cQ(/3
*2^^
O
i— 4-l -H rH
Cd rH
M tO -r<

CO *"* f-
'do r»
Q) CJ ON
*C rH
U rH
Cd rH
CU 






















•
CM


m
oo
CM
r
in


m
CM
P>^
n
^J-



O
vO
m


•
CM



m
vO
CO
o
rH
CO
M
CO




m
in
rH

m o








C/}
P-.

^5







rH
1C-
4-
O
H
oo rg
°^ ^
r^ ^o
CM

m o
i^» *<}•
* . r^ in
4-1
^
W
*\ *\
CN m
CM




• o o
4J
c
M
rH 00
CM r-~-
n
If}

• * • •
CO ^ tS CM


o m o to
O^i GT\
CO 00
•V fV
CO H


o m
CO ON
oo oo co
~ *. CO
CM rH O\
rH


O
vO I
in p
£*
rH
ccj
4-1
O
H
CNJ VO
<± in
#\ *v
i~H r>>
ro

o in
• rH CO
4J
«
(x)
CN r^
M *V
vO vD
CM


O O
4->
C
H
rH CO
CM r--
m

• • • •
CO »» O rH CM
O
0
rH
in o •• in in
CM  * «rl
CM rH W
rH
rH
00 -H
r*** *^ 3*<
rH i-l r-.
#S f> f *^
CM rH O>
rH



m
in i
H

rH
nJ
4-1
O
H
m ON
rH VT
CN
m m
. co m

* *
H
rH I--
•. r.
o  ^

         rH  CM CO
                                                   rH CM  CO
                                   467

-------













































CM
LO

0)
^^
.0
l__
* "
















































K^
^
o
00
CD
4J
cd
co o
WH ,0.

po co
So
rJ 00
lOH C
fe T>
HH O
<;W CO
MPS -H
HH P
ur

2* 4H
WP4 nj
HP J-i
Wj-5 $4

^Efo_t ^
w 
rH
rH

^j
>^*



rH
ctf
4-1
O
C *'
m
CM
vO
•V
ON
rH


10
CO
*J
W
W
vn
A
oo
rH



• O
^j
C
M

rH



O O
VO vo I
in m p
P-4
rH
(tf
4-1
O
H
CO
O
M
r-
co

m
' M

X
M
oo

rH
CO



• O
W
0
M
rH
CM

H m

... 0
CM ro st O H
0
rH

O O O
rH o- r~ 

oo ^J*




0 0
oo co
i^« r^»



• «

m m
o\ oo
rH O

vO 
C
B
4-1
(0
0)
^
C
M

rH
(0
4J
O
H

•
rH












4J
CO
O
0

rH
5d
p
M
CD
4-1
^
H


• *
4J
^
W














u
u

g
4J
fj
iH
s3

*o

o
0
•H
W
m
M
4J
a
o
•rl
4J
fl
-H
O
cu
^
p.

Q


•
en




          rH CM CO
                                                    i-l CN  CO
   rH
CO
   W
         m  o u~i m
         VO  rH  M OO
         H  rH CTi rH


         VO  rH
o o in tn
 
-------













































ro
LO
i— i

oj
Q
m
I —

















C/2
ptt
cn







rH
4J
O
H






•
u
X
M






•
4J
c
M





• •
rH CM



o m








CO
x-s CO
« o
rl rH
CO
"S >J
S C/3 M Q
1:0 O 0 <*-( tii
rH
CO
4-1
O
H
co -o-
r^ o
f\ f,
cn cn
rH

O O
• i-H vO
4J CM vO
V
W
A *
rH CM
f-4

•
4J
c
M
o m
t^» co
m cn
2 O tO O H CM
2 H w co
£ fe: CO -d 0 rH CM
^ w o g m
rS S rO, to cn
S H 3 w
^1 <; co 3 ..
^ W 00)
S PS 4J jfi N
5? H IH H .H
p ro c/2

J-2 HM *H t~H
0 W "-H
g S 3 s 3
5 £ ^ oo r-
2 fa *-< o r-«
ijj W eg u o>

^ r-l rH
<3
^/



'«
O
H
^J
W
O IT,
in co
f> *
O*l rH
m O
-d- oo
t^. co

CO rH^

«
4J
(S
M

m m
O 0
o
-*







C/3
f^-*
W







rH
4J
O
H
in
in
r-{

O
vo
*i i^
*J «
X\ rH
W| H



O

e
M
CO
CT.
^
cn

• • •
CO •* rH



m m
r- o
O 1^-
M o^
CM


O 0
o>i r^
vO CT» CO
co
rH O
rH

m
oo I
m O
fu
rH

4J
O
H
v^J-
CM
r,
H
csj

m
vO

s^
W
CN
n
p^.
rH

•
4J
M
o
CO
cr\
H cn
. • •
CO 
c
M

r-4,
C3
4J
O
H

•
i-H









I*
co
0
u
rH
cO
g
01
4-1

• •
w
M















01
u
C
C0
c

4-1
c
•H
0
5S

•8

a
0
•H
4J
rt
M
O
(X
O

•
sr




4-1
co

IJ

^-4


• •

4J
CO
O


M
rt
^^
4J
(4
M
(U
<§*
- J
r^
CO
u
Q
^4

          rH CM CO
                                    469
                                                      •H CM CO
                                                                                 CM

-------
m
rH
rH
VI
o
H
CM
v^
rH

m
en
• CM
4J
x

0
rH

0
.J
c
CO
O\
m
0\
rH
en


o
o
vO
CN


in
01
m
0
en
H
CM


m
en
in
r-T


m
ON
m
m
^o
0
r-J"


m

o
H"



i











41
CO CO
cS S
4J
fl •§
rH cvl CO
                                           en
                                                       (0
o






en
,*-N U.J
M r-i
OT t>, °
W ^ M ° Q
j- n vJ ,»". M
S2 o 2.  H w o g
i — 1-4 W 4-1 -^ JS
* £ H2 H w
>- 3 g£ ^M

H ^ oi « y
c/i r"* »M Tl *^
^•j ^j^ '"^ ^Q p*«»
^5 ^ trt ° rx>
•* w >S U cr>
S H
^
J^"J
^^
'^^^

r-<
ea
OJ
o
H
O
in
H
H

w
in
00
o"
rH



*
4-)
fi
1— )

m
o
i i i ^,
*
rH
O






<-n
o>
rH




,| O
'«; ^
o
H
en


O
X
W
on
r^\


.
JJ
1 — 1
Cj
\D
' ' en
m
o>
^
en

O
rH
rH
«1
en

m
oo
en

CN

in
CM

O
en
m
CM




m
0
rH
•
CM
O
O
f~-



m
3




in
m

in
CJ\
en
CM

o
H
O
A
CM

in
00
en

en

o
rH

m
en
vO
t\
rH




in
o
rH
*
en
o
[•*•*
in



in
rH
in




m
m

o in
o
rH
rH

O
O
""1 S2
fl o^
rH
1
P-i
H
i
«
o
H
m
^

in
O O
r^. CM
n A
m en

in m
r-^ CM
0 rH
*\ M
in en

in m
o*> CJN
in in
^ %
CM on

in o
en CM

o in
* — I r**
co in
m CM


in m
**O vD
rH rH

• •
CM CO
O O
rn en
rH CTl
•H


in in
O 00
, — |



n m
co co

o
m
CT>
I-H"

o
m

rH

1

»»

m
en
CN
H

m
en
CM
rH



I


•

rl
4)
•U
3

|
4-1
T<
U
CJ
M
O.
,
CO







4J
W
o
eo
r"
"2
ea
Q)
C§*
^

o
H

               470
                                         CM en

-------
 !S
rH






(X.
s




HJ
•W
o
in
0
CO

*" co"
rH
0
4-1
j^
W
in
CM
rH

in

4-J
c
M
rH
in
m o
in in
r*x ix.

CO CM

in o
ON ON
CO 00
CM H

0 O
vC ^.O
CO OO
in •"!
o
o

r-T

in
§ 8
H X


1

ro
4-*
O
H
in
in
in

r^T
CM
. "^
4J
X
W
o
in
co"
rH

.1 °
' in
+J
G
M
O
ON
in
,__)
00

in"

>n
in

CO
O
o

4J
C
0)
e
4-1







0)
o
c
s
0>
4-1
G
•H
£
rH CM CO VJ- i-H CM CO x^ rH CM CO x}- > C
C 0
minino inomm inmmo MTl






CO
00
ON
^-x. H
— «
Z: M
^"^ T!
f> rH
«3T CO rH
OQ H 0
cn P-.P
rH
CC
O
H
rH O ON H
vO CM in \c
O CM H
rH

in o o o
.
4J
J^
W
ON in <)• rH
in l-» rH \£>
« - •> ro
F^ rH rH QQ
ON
rH


o in in

4J
C
M
CM in m i
o  u
— i 2 u 0 m r^ ininmo o omino et
ir>_JHrQOcM omoin vo
i— 1 1— i <; H M
OQ w on 3 ••
CD —'



rH
rt
4J
O
H
in ON CM r-x
S3" Kl" i — 1 CO ••
n A «\ Q
l-x. H rH N
•H
CO

rH


*
4-1
^
W
in m o in -H
rH ON CM t^. £
rH CM ON CO
^ A fX,
VO rH tx»
ON
rH


•
j^j
a
M
in o o
CO O O i
CO CM CM
M
rH
rH
cd
4J
O
H

O in CM ro CO
in rx. O fx. H,
f. *. n ••
CO CM CM a)
rH N
•H
to

f_{
0000 i-H

4-1
X
M
vD vD co CO iH
00 co \O rx. jj
« *\ *
O CM rH rx
rH rx.
ON
i-H

•
4-1
C
M
in m in
<3 ON ON |
<& CO CO

CM
rH
Cfl
4J
O
H
^o -^ r*-- Is*. 4j | LJ
rH « ^j .M
rH «* CO rH rj
CM n
rH O
CO >H
C W

• n o o o -.- .. ;
i
4J
X
tS
ON ON CM fx. 4_> CJ
rx. rx. in CM x 
O
H
o o in in
rx. vO VO ON
o in x^~
^
CO




•
4-1
X
W

in in o in
00 CM CO ON
rH x3" CO **!
CM" 05
rH




•
4J
n
M
in in m
00 CO CO |
00 H rH
rH
(8
*J
o
H
o o in in
in rH VD xt
rx. o co rH

in I-H



.
4-1

o o in in
in 
-------
,<~*






to
(Xi
CO
V£





rH
n

4—*
o
H






•
W
X
w

CO
P-'
C/3
&


•
4~'
C
M



a
4-1
o
H
in o CD o "t!
r- VO LT) r-H
O -O in rH

v£> CO CM rH
rH
O O O O
•
4-1
X
w
VC O 0> rH ...
CM CO * rr
rH CM rH rH fV
r-i "*-

^i in o o
4-1
c
rH VD \D |
r^ oo co
i-' in
tu
4-J
O
H
m m in o
r^. 01 - u~) CO rH
CM
in in m o
4J
W
Cvl VD CO 00 ...
CM  C
c o
u-i in o in
r^ m o in
_, CTV in co i--



CO
cr>
S-^ rH
CO
s
rH
r/S „ 1
t/j r~i
WH o
Ow Q
Pa o
t~-1
<0
4.J
O
H
rH CM rH
rH

in o in in
in o o- in
S
f-O
CTv rH CO f-~
•>»>•> (V\
CO CM rH co
1 J
C^
^ 	 J

1 t
c
M
o in m
CM in in !
o o- 
rH
CO
4J
O
H
CO C 0 0
co o 01 co
r~ CTv  ^ »\ »s
CM 
X
w
CM o m >n J^ ^.
o o ^o co "
 . * ri , • • • • p | • • t • CO
i-5 O U-i P-t - - - . ^^
^ OH t-i CM ro 
[/^ r . Ij
V-J £— 1 M
^O tr cn QJ
tf> Ofi -Wr-d O ° ° -*-'
. r_-i £3 Hi ft* (/"> r*-^ C3 r*
t~^ l^H *^ M-4 fw ^"^ —
H£ t8 Cd ^
a> < TTT Si^ »™i • •
' k-^ W t-"H _J • •
-Q Kf4 O O
fO HH t-3,G M
H- O HH •<-)

t-t >H
rH
<
*. j


rH
(^
4J
O
H
i •*
o IA in o ^o
H <»• CM CM
co as to in ..
*» r. *\ flj
OO rH rH N
•rl
to
r— i
i

4J
'X
ft
in in in o ^
r^ o- CM CM £
O- VO rH in
<\ *v «s rx
r^ i — l rH r^
CTv
_4
'
in o o
. CO O O 1
4-
c
H
CO CM CM
"
rH
rH
tO
4-1
O
H
i in m o in co
rH 
*. *. «s QJ
VD CO CM N
rH ^H
CO
_4
o o in in J-i
4J
X
W
r^ >-o oo r-~ .H
oo o o 01 jj
«% ri *\
co co CM r>
— i r —
1~-1 1
0>
rH
4J
C
in in in
-H
C w
M 10
in in o in iu -H
•
4-
fS
rH I-- VD rH 4J CJ
r^ co CM ^£> x cr
rH CM CO
                                 rH CM CO
                                                                  I-l CM CO






CO
r-
CT>
rH



r-f
R)
^J
O
H
o o m m
r**> ^0 ^o o^
o in -o-

CO


J
^

in in o in
co CM co a\
H 
r, r^
CO 2

O O O
•
4J
a
M
o r^ t^- i
CO CM CM
rH
rH
CO
4J
O
H
o o in m
in co o CM
co vo 
CT. rH rH W
rA
6
CJ
•
4J
X
M
«^
o in o m en oo
CM r-» in CM O C
CO rH CTi CM O -H
•% »% *^
^rH H «
0 Q)
M p.
4) CD

•
4J
C
M
o in m O r$
co m in i H ™
»-*>* %
co " H
xj
 rH  CM  CO
                                 rH CM CO
                                                 472
                                                                   rH CM
                                                                                           CM

-------
W
M
      rH CN CO -J-
rH







L/)
p t
to
^







rt*
4J
O
H
to
r^
ON
•
VO
rH
LO
.
t j
VO
>n
X
PJ| rH



.
4J
a
M
0
rH
^J-
»*
m

.
rH


O
r--

vo -I <~^ ir>
r. «-, «- r.
LO tn "1 rH
CN
o m m o
•
4-J
\<\
W
VD en r~-- VD
—j —i in in
^ n r> *\
r^ vr CM ,-H
1 — 1


.
4-J
rJ
M
LO LO LO
o i-> r--
lO CM CN) |
n *\ ^
OO rH rH

CO Sl' rH CM rO vj-










ru
o
W i'j
o c-
U 0)
-J
4-J C
cii *H
ci) rt
n >'«

M <-3
> C
C o
M -rt





CO
ON
^s .-!
W
i— i rt
oo •-<
cj; tO rH
CO H >N O
C/J M P5
?- O O O
O O 00>4H PH
r^M QJ C H
rH
rt

H
O O O 0
VO O O O
ON H LTI VD
ri ri r>
ON C-4 rH

X
W
O O O O
-d" vo vO O
O vo O vD ^
|C rH H" 2

.
4-1
£
M

O 0 O
fN "d" xv(' |
^ -x3" -Cf
A
,
4-1
o
C
IrHl rH tj
O Ln o LO !
CM vo -j
^
O O O
rH rH rH I
 r^
IO CM CM 1

^ . . . g ^ . . . g crirH:,-; . TO
rHCMCO^ H HCMCO rH
O O to LO tn
vo to ^r 0 n t^
ON rH co CO cj
CO -3- CM rH ,_( o
I— 1 e* 	 I
\y -I i
d l '

r^ rt
0) -H
4J
K
w
_ iJ U
O LO O LO v cu
 in -3-
CM



U
,3
O LO O to
CO OO C\ O\ fr>
ON CO CM r^
* ON
<-< rH

o in in

4J
fj
H
co in in i
O rH rH
**
rH
| 	 |
rt
4-J
£

in o o o
ON ON vO ro
ro O ON rH
VO rH


^
4J
£

to LO tO O
CM ON VO CO fl
•vj" P^ ^O 1 — t t~*-
^ ON
vt r-t


4J
t:
IH
O in m
f^. ON ON |
ON CM CM
*t
rH
rH
rt
4-1
0
H

to LO to o
r]
« 0 CO rH H *j
mH g M
1 . /~> .
n t~*«
0) O
4-1
•
4-J
c
« d
O O O M rt
o oo co i t;
CM 
-------
rH






to
CO
55




rH
CO
4J
O
H






4J
A
5^
P<
CO
2

4->
C
M



CO
4J
O
H
in m m o «-!
rH \O in rH
f^. CO CO O

m co CM H
rH
m in m o
•
4-1
X
M
•
±J
C
M
o m «* H r-
co m in o ^
OCM"rH"rH" g
O O O
rH rH rH I
•vf CO CO
M.
m
R)
4J
O
H
o m in o
en -^ f^ r^
<• CO vO vO

•£> «
«^ *t ** *» *J
in sr CM rH £ g
" Q C
O a>
ii
+J
m in m tJ 5
o r^. r~ *, *
m CM CM i 2 .5
M. *\ •* ^" ^"*
«-''•' a u.
• ••• •••• •••• (3
a o
oom o o o o omom HTl
J3 CM O CM
11
X
en oo <• ~*
A. n M n
m co CM I-H p.,
1—1 oo
en
rH


, t
C
M
o o o
rH rH rH f
:cl ^ 2
HrCsTeM « 2
^ H O*

m o m m ^ ^
1 1
X
ro
-j- oo m oo
»t ft ft ft
co in oo CM
CM




U
c
H
m m in
o r^ r^> I
m CM CM
ft *\ #S
00 rH rH
B o o « o w
>-J O iw pi< •••• cXf • • • • PL* •*•• co
>-< OH rH CM CO  ,„ O 0)
co Q £1 K-I ,2 o ° ° 4J
u> H tr1 nj a in r-« inmom co oinoin n
rH H p >-i cd ^ inmom vo
§: "^ "** w
sENlS
^ Ci 1 1
I— < £H fa M
W § Jj _i
HP 3
^ r3 CO -H
^£ ftj yj
wo ^
O i--

rH rH

^j
^j.



r-f
ct)
4-1
o
H
oo m o in
en r°"* CM in «v
" " " CU
1^ rH rH N
•H
CO
^
rH
o o m m .H
. m r^ rH in i*.

X
M
r- m o m "
ft »» »v J*^
•-O r-H rH t^

i-H

m m m
,
4J
c
M
CO CO OO 1
CM rH rH
f.
rH
f_^

O
H
o o co r^. I-H
m f i co en
m co CM ^
rH N

CO
I— 1
o o in in rH
j
X

rH en en en 53
r, r. », **
CO CM r-> t^~
rH r~
en
rH

,
4-1
C
M
m in m
vo in in i
co ^o *^o
«\
CM
^i
nj
0
H
c^l co -d~ -J~ ^j )_i
en O  *t *\ Q ^J
C--] in CO rH (J
i-H 0
CO -rl
£4 ^
M ft
o o m m eu VH
4J
x

O rH ^3 i in o
CM cn \o co

rH




. o m m
i--. en en i
-t-^l o> CM CM
Cl f,
Ml ,H

r-l
03
4J
O
H
m m m o
-^ vt in cn
o m co I-H
f. f, f,
Cn rH rH *J
m
8
• i

4J
X
W
m in m o co 60

-------
          in o  m m
          m CM  oo co
          m a\  vo CM
          vt
          m o m m
          CM 00 vt CO
          vo rv in CM
          co
          o o o
          CO vt vt
          CT» rH rH   I
           rH CM CO vt
















O>
10
«-•
0)
-.
.a
























*-^.
i — *
00
s
^j-
o
1 — 1
h-
1 — 1
,— 1
1 — 1
CQ
r-
CO

C2
LJJ
r~

C"
u;
d'




















H
c/)
O
U

H
53
^
rH
i

0
M
ft
O

d
CO
^
r*
O
CD
s
e
OJ

u

rrj
O
o
J5
T)
C
O

O



rH
.
Q Q
m PH *
OH H
*§
G^
cd
co
3 "
O G)
f. N
H -H
W
r*
•H rH
rH
CO -H
| 1 Vc-J
CO
o rv
O rv
__i .^j
rn r~i
H
^




rH
cd
4-J
O
H

m
vt
CO





4-J
X
plj
O
vt
O
CO



•
-!-)
c
M
in
CO
vt


m
CM
Q>

in
OO





o
vt

*
CM




O
rH





in
vt
vo




m
vo



O
vO
vO

O
CM
in





o
vt
1
r~1

c




in
CM
in





o
VD
vt




LO
vO



m
VD
CM

in
vo
CM





1
(

) -3




in
00
rH





in
CO
f— \







I
                               o
                             CO
                                      co
                                      OO
                                      ON
                                w
                                        in o m  in
                                        in rv o  vo
                                        vo rv co  «ji
                                        00 rH rH
           o o  in in
           CO H  vt vo
           CTI m  o vt
           VO rH  rH
                                       moo
                                       CM  vO vO
                                       rv  CM CM   I
                                                rH  CM CO vt
                                                 in o  o o
                                                 cy\ rv  in CM
                                                 CM rv  CM in
                                                 00 rH  rH
                                       o  o o  o
                                       rv,  rH en  CM
                                       m  in cr>  in
                                       in o o
                                       CM VO vO
                                       rv CM CM   i
                                       •"^  .   .   .
                                       rH CM  CO vt
o
o
CO


rH



rH
cd
4-J
0
H


o
rH
VO

.
ti
X
w

in
vO

in

4-J
a
m
vt
M rv




o
vt
CO
rH


0
CO
CM
rH

O
rH
rH




in in
vo rv
en co



in in
in rv
CO CO


0
rH
rH 1
                           C/J

                           C/)
                           a
                                                                      w
                                                o  o m in
                                                vt  rH in m
                                                o  rv o\ rv
                                                CO  CM rH
m o m in
O o vt in
ro co in rv
o CM rH
                                                in o  o
                                                CO rH  rH
                                                rv vt  vt
                                                CM


                                                rH CM CO
                                                                                                  4J
                                                                                                  CO
                                                                                                  O
                                                                                                  o
                                                                                                           CO
                                                                                                           
0
H


in
CTi
CM
,— |

4-J
X
W
4-1
«
1 — 1
o
vO
CM
O
rH
m
CO
rv


in
o
00
CM

in
CO
•M
o
rH
vt


O
m
ON
.H

o
in
rH
0
rH
vt


in
in
00


in
in
oo


i
rH
cd
4J
o
H

rH




cd
H
Q)
P.
O

*
vt



J_l
p^ ^
H rH
O
O
vO


* •
CO

rH
rH
•H
rv
r~-
CTi
iH





rH
rt
u
Q


0
o
H o
0



.
4->
X
w

m
m
rv
oo



.
4-)
c
,H

m

CM
rH
.
CM




m
CM
rH
CM




O
CTi
rH




U">
oo
rH
.
CO




o
o
in
rH




m
tH
CO
rH




in
oo
iH
.
vt




in
CM
VO




in
CM
VO







1




4-1
10
O
O
•-H
cd
p!

0)
4->
X
W

• •
.
4J
X
w


M
Q)
rl
4-1
0
H

•J)
O
•H
4J
rf
•H
O
  -O
          O CM rH
in o o o
vt ON CO vo
00 rH rH
          o m m
          ^O CM CN
          H CM CO
CO
,^
a\
                                       m o m  m
                                       vo oo cr.  co
                                       a\ co CM
o o  in m
cr> -3-  m oo
vD C1  CM
                                       moo
                                       (V.  vt vt
                                       'N
                                                rH  CM CO
                                                                   475
                                                                            CO
                                                                            rH
'1
o
r .
C^
0
0
CM
CO


.
4-J
X
w

in
CO
rv
CM





.
! )
* '



m
to
Vt
m
CO
in




in
rH
m








o
rv

O
oo
vt




O
rH
-t







O
f — .


m
o
rH




in
o
rH










1






CO
o
0

rH
cd
r!
rJ
a)
4-J
M


tt
t


4-1
CO
O
O
60
f3
•r(
4-J
cd
M
11
P*
O
|
l~1
Rl
4J
O


                                                                                      rH  CM CO  -.t
                                                                                                  4J
                                                                                                  d
                                                                                                  •H

-------


to
PW
CO
53




iH
(13
4J
O
H
4-1
y.
w
in in m o
CT> rH rH O
O O1 VO CO
^
-d-
m m m o w
VO r> f^ 0 %>
H^* i-H CM CO  R
(3 O
H -rl
4J






CO
CO
o^
x**\ r~i
>i CO
rJ M
o cd
W)rH
CO CJ rH
W H 4J O
CJ CO C(j Q
rH
ni
4J
0
H
o o m in
CO O1 CM VO
r-- o r~N co
«t A
<1" rH


o o in in
•
£
w
m in co vo
co 01 in co
•> CO
CO CO
CT\
i-H



•
4J
C
M
o o o
co  i-l rH

rH
Cti
4J
O
H
in m >n m
rH r» CO CO
CM O CO vO
O> CM rH


«
4J
X
W
o in in m
CT> rH CM CO
•vT 00 rH VO
t-« rH rH 02

T-H


•
4J
f^
^.-J
in o o
CM vO vO
r-- CM CM 1

rH
rH
03
4J
O
E-
m Om m ri 2
S^3§ § R
...MM ^ *~^
sh ^*CM H HO
rH " '
i-H -*
•
4-J
x
w
O o "^ "^
CM r~. r^ cr\
co^ oo r^o^
rH csTf-l "-1
rH



•
4J
Jlj
M
in o O
CO rH H
P>« -st* •^^ 1
A
CM
P 0 0 Q « O *J
| 1 £_} _Q t|_j r_Yj . • t • pt .... p_j .... CO
MDOH rH CM CO -si- H rH CM CO  cd m m in o
<£ f£ i) a)
fli J> W 3 3 ••
r— S"1 Pi -> 0 CU
j^ H H S ,C N
-£ cj aj H -H
:— < H -S rn
55 r-> C
W S -H rH
H >3 T3 rH
CO ,_) 0 en -H
<5 Pn P -H g
13 p_ & en
, w "2 o r-
S vJ r-
3 en
0 rH rH
V-( p^J
o 3
s^_X



rH
03
4J
O
H
vo r- co 01
co co m CN
CU
CO N
•H
CO

rH
O O O O rH
CO rH CM O\ -H
.
1 }
•A
f3
~j co in CM g
^
CO |^
r^«

rH


>
4J
C
M
m in in
CO VO VO i
~^

rH
cd
4J
0
H
o in o in v° rH
CO O- O O-
co vo rH in ••
« « « 0)
r^ rH i-l N
•H
to

rH
m in o in t— i
,
4J
^
W
CO CO CT\ ^ -H
10 in o> in a
•* «
vO rH 1^^

cr>
rH

.
4-1

M

in O o
-^ rH rH 1
r-- rH rH

cd
4J
0
H
O o ""> ''^ w M
vO Q CO vO W
in vo r^ °° ° ***
" - " u
rH rxl rH B
'H " ^9
VT) -H
rl 4J
i-i cd
in ir\ O m Q) -rl
•
4J
X
frl
rH 1J in VO 4-1 O
<<*> ^ ir> CO X  « « W M
0 CM H &,
rH CU
O

4J

4-1

M
X *
1/1 in in w co
-J- CO CO
CM rH rH 1
	 i
r-l CM CO
                                           CM  CO 
r-l





, — f
cd
4J
O
EH
O rH m vD
O CM -H
rH





X


"1 O O O -o
<]- O> CO vO L
CO rH H (y,
rH




t
ti
r:
M
o in in
. vO CN CN 1
r-l
, — |
rj
4J
O
H

m m m o
•£> r^ Cf> CO
O> CO CM
i-H




.
u

o m in o ro
o~. co in co r-J
vD CO CM 1^
_T •-<
rH



4J
d
M

moo
i~- -a- 
4J

ti
w
en M
O C
in o o o cj -H
CO H rH O 4J
r» in -* <-i rH cd
r ca M
CM , flj
1-1 CX
0) O

^J
CJ
M
*_*
C! iH
i n-| m
m o o o
\o i"""** r^** i c j
TL ** t~*
' .... *1 .
H CN CO -
-------
                          IO O  m in
                          CM 
*3" i — !





in u"i
- o vo
                                                                                                                   f- rH r-i
                                                                                                                   in o o
                                                                                                                   CO rH rH
                                                                                                                   r-- "*

p^.
f^*
C3>
rH






rH
CO
4-1
0
H


O
CM
in
r->.




•
4-1
X
H

in
i —
CM
vO



•
4J
ti
H

m
',
W


• •
•
4J
X




cu
4-J
C
H

t-b

0
O
•H
4_l
cd
•H
O
(1)
M
(X
0)
p


•
CO



                                 CO
                                                                 rH CM  CO
                                    o in  in
                                    VD CM  O-J  I
                          I   I   I    I
                         o m m
                         -.0 (M CM
                         r-l         I
                                CO
                                                      CO
                                                                in o o
                                                                i~~ 
-------
rH
	 1 r,l



CO
P-1
to



nl
*o

in m o m
in o> u-\  r^ m CN
CO

4J
X

CO
o m o m S^
ro m rH — '
in O o
CN - i-H rH H CN {ft uO
• ••• ••»• ••»• QJ
rH CM CO Sl- rH CN CO ST rH CN CO ST > C
U O
M -H
1 t

rH








CO
cc
>-, cr.
(-I/-N rH
O K
M M
I) fij
4-1 rH
CO Cd rH
HOC
rt

o
H


o o m m
 • rH

in o o
CM  " F-t O
rH CN rH
rH
rH <*
4-1
X
W

o m m o
co r^ o r~.
vo O co r^«
OO CSl r-^



•
j_j
c
M

m o O
CO rH rH 1
r^ O- si- 1
CN
O O 3 O P O 4J
Q CJ CO HH PM .... fi, .... (X, .... (0
tJ OH rH CM CO ST H rH CN CO Sf H (H CN CO Sf CO
CM ^ H A t-t
VD CO f3 O CO O 0)
rHLdOlTJO O O 4J
o§aco o \o c
CO H H •~-. KJ rH CO
•"T H  p^ jj O CD
r- M H 3 JS N
H ,C H iH
O £-""* EH CO
— * O ' >
H r-5 O W -H
CO FTI *% 4^ *£^
<< pt< fQ CO
& W ti o r»
3 cj r--
°i~( %
O rH
^
N— '



rH
CO
4-1
0
E-1

o o m m ••
\o CN r^^ *-d" ct'
1 	 [ j^, ^j- ^sj M
CO *^
CO

rH
r-i
o in o in Tl
.
4J
X
W
CO in rH ^vf «&4
1^* vO ^1" CN
CM r~

o
rH


.
4.J
C
M

o m m
CO vD vO I
 o -i n)
ui *ri
.
4J
X
Ed
o o m m 4-1 o
O r-~ m rH X 
-------
           cn

           cd
1"-J  >^ &5

*~1  •< JH
    i^-i  «   »-*
o  g  i  -H
1^  3-2   w
                     fu
                          O
                         H
                     co
                     oo
                     cn
 o
H
 H
 cd
 s
 HI
 4,1

 '/:

 W
O   O O  O
CO   CM 00  <}•
00   00 LO  CM
CO
                                 o  in in  o
                                 o  a\ in    CM sj-
                                                 CO
                                                                          in o o
                                                                          CNJ r^s, p-**
                                                                        rH CN ro
                                                O LO  O LO
                                                '.N r-»  ro -.t
                                                CM 00  M> CM
                                         O LO  O IO
                                         JD
CO
CM
•
O in
rH CO
CO VO
*> t
CM rH


O 10
VO 00
C\ CN
rH rH


O O
in 10
CO co

. .
LO
r~.
vD




in
f-^
vO




1


•
H CM co 
W
LO
in
r-

4J
0
M
o
CO
CM
•
rH









r-
r^
Cn
1-1




rH
cj
4J
O
H


o
LO
-1-
00

.
4J
X
W

lO
CM



4J
rJ
Hi

LO
CM
O
rH
rH









CO
r^
o>
l 	










rH
CO

4J O
O
H
c~-
CO
CO


.
4-J
x


O
£••4 i cn
cn
01






4-
f



,H 0

CO
.
rH



m to
VQ VD
m ^
M *
CM H


m in
rH H
O CO

o o
LO LO
CO co

• •
CM CO



LO O
VD r-*
r-. CM
rH rH


o m
H rH
yD H

("1 1"~1


in in
in in
rH rH

CN CO

O LO
rH O
\D LO





10 O
LO LT,
LO -d"









LO LO
IO LO

. ,
CN CO



o
o
r^



o
o

,

•
•
a
H

rH
cd
4->
O
H

rH








4J
co
o
fj

s
0)
4J
X
W

••
4J
M












4-J
cn
0
o

rH
cd
C
rl
CU
4-)
C
H


• •
.
4J
C,
M






CU
O
a
nj
c
cu
fj
•H

*jrj

eg)

C
o
•H
4-1
M
cu
O.
O

-si-




^J
CO
cu
C
H

<*}
fi
•H
•H
0
CU
ft

Q

CO








4J
cn
o
CJ
ao
a
•rl
4-1
rd
M
cu
o.
O

r-t
cd
.JJ
O
H


*
CM

-------
rH





C/3
Ft,
C/3
"A




,H
crj
4-J
O
H


m o o o
co co O CO
co r- m CM
en
•
4J
W
W
en
in in in o p^
o o r* co c/j
in vo co CM S3
CM


-^
4J
C!
M

o in m
CO CM CM |
00 rH rH
rt
4-1
O
H
rH


o m in o
vO in CO CN
oo o r>. co
- oo m co <^
CO

a
4J
C
M


in o o
CM r^ r^
rH H rH |
rH
cd
4J
O
H



in o m in
a ~-» vo «*
65 H -5 vo
0> CM H
JJ
X
W
a)
in o in in D H
s* VO H -* „ S
 g
P O
H -H
1 1
_i
rH



CO
oo
0>
^-x iH
W
Cd
c/j r?H
W H o 0
0 £ trjQ „
@O QJ P
a)
4->
o
H

in o o o
r->  VO CO
^Sj

J
X
W
in m m o
0- rH O rH p.,
co oo m co CQ
<••> £7\
rH


4-)
C
M
o m m
CO OJ CM |
00 rH rH Q
cd
4-J
0
H


in o m in
oo in H co
O CO CTi ^f
vu rH
m
S
W

o o m in
VO 00 -* CO CO
o> H r~ <• co
vr i-t cr»
T—l

II
a
M

in o o
CM r-~. r^
r-' rH rH |
^ n
i^ .
H
cd
4-1
0
H
+-•
H cd
m Ln m o f| ^
00 H CO CO ^ ®
m r- coco o <§•
^ *» rv L ^^
CM CM H
^ . ^
.
s
W
r^l ^J
in m m o
CM vO CO CO
CM co m co
*• *i •»
O CM H
H


4J
a
M

0 O O
vo m m
co co co I
CM 4-1
* . rn
r i ii u_j n_i • • • • tn * * " " H~I - . - ...
^HJcdOH rHCMCO-vJ- H H CM CO  W S, to R in LCI
i — H H cd r--
t~~t ,$* f^ ^ rj)
ro > w r 3 ••
H- H Crf g O 0)
H H 1 ^ N
O U H -H
 O rH
CO ,-J. £ M -H
«tf Pn ^3 +J ^3
5 Pn C W)
W 3 0 f^
o O r-~
M CT>
OH rH
rH
d-


rH
CO
4J
H
4-J
y.
&
rH
0000 ' '
0 u-1 rH -
W
W M
W
O "-3
O 0 O 0' O
CM H CTv CM ti
O^ rH --i cd
n\ , j
(y *r*!
I JJ CJ
X a)
1 m in in o w Vt
a\ m co CM ex
co c^ co vo a)
CO H H O
U
•
4J
&
1 — 1
X
W CO
m in in
CM m in i
O H H
_l
rH  CM CO  --J-
                                        i-l CM  CO sf
                                                                               rH  CM  CO

j-4
n)
4-J
O
H

in c - o O
vO CM vO vD
0 CM H
rH



U
X
M

CO
m o o o r--
rH O ^f VD a.
O1 CM rH rH






U
H

0 0 O
m c-j CM |
rH
Hi
cd
p
o
H

o m o in
co O co r^.
in co CM
H

*
t-J
ii


>n o in in ^
in co o t^ r~-
CM IN CM 2
rH rH




B
4J
M


in in in
r-- CM CM i
PH. . • . 480
H
vj
4J
O
H


o o in m
1^ rH O O JJ
CO VD U- rH (fl
CO o
O
i i

U
3
W 00
o d
o m o m ° 'fj
en m m o r-H cd
Oi u i 
-------
LO
 (i)
_
 rO
,rH
i rrl


CO
(^
CO
53






1 — i
til
*.
C
in o in in
^ CO CO O>
in iH oo CM
^ m H
4-J
X
w
o o in in CM
CM en vo CM jg;


.
4-J
CJ
M
moo
in en cri i
CM rH rH
rH
vu
4-1
O
H
rH
n\
in o in in
uo in CN CM
rH VO CM -J
WJ i— l rH
4-1
X
w
m o in m ^f1
cn r~-  £
fj O
M -rl

.rH





CO
CO

^-*. ~1
s^^ tri
co
==- trJ
J~< ^ rH
/ ,-, CO >-l rH
^H 0 0
s£i?pp
01
4-J
0
H

4-J
V
W

in o o o
H CM O CM
CO rH CO CO
in H
o o o o
VD CO rH CM
o en vo co co
~a- co

rH


,
4-1
r4
H
<• 0 O
-3- en en i
CM H H
rH
P
rH
C"3
4J
O
H


o in o in
co r^ cn co
OO vo rH si-
P^ rH rH
J
X

o in o in
CM cn i — i oo
o co cn •<)- co
VD H CO
cn
rH

,
4-1
C
M

o o o
vO CO 00 1
oo CM CM
rH
Q
rH
CCJ
4-J
O
H
4-1
in m in o '"J ^
 H
m H

IT j§ 3 -0 0 0 0 '4J
lo P M c| "-<"> o in C
rH Oj ' — ' OO
. <; cj M
^ to S 3 ..
£££,§ g
r_ H -H
^go dw
0 W 2 -H H
i , t l i ^ i — (
I 	 .1 T3 w -H
£-• L-J c u ^;
o; li 3 M
£WC?S £
^- 0 ox
H rH
rH
^*v



rH
cd
4-J
O
H

in in in o
en co rH CM (U
O CO vO CM N
•
rH


4-J

v_l


o o O
"H CTi CTi I
rH
cd
4J
O
H
in

o in o in
en ro o co d)
O> CM O~\ CO N
in H ;t
CO
rH
r-l

4J
X
w
•H
o in o in a
>H O (^ CO
rH rH r-- co r~-
U"\ rH I-,
CT>
i — 1
^
. !
^
i 	 j



o o o
00 CO CO i
H

4J
O
E--
4-J H
CO
o in m o o ta
vo cn iH co U
i-- i-- co sj f!
00 rH H rH O
CO -H
C 4-J
J-i cd
u) -H
.
^j
p a
in in in o x cu
X f--- CO O CO fij Vl
w| co in iH -si- p<
1^. rH rH 0)
" P
.
.
l-J
r;
M

4-J
X
W co
m o o
CO rH rH 1
m CM CM
VQ C3 rH v-H ' rH
                                   rH CM CO -vT
                                                                        rH CM CO
                                                                                                              H CN  CO
                         ro
                         H

rH
c3
4-1
O
H
o u- in o
co i — i  rH




.1
4-ll
a
M
in o o
 CO CO O
CO O UO rH jj
CO (n

O
CJ
4-1
.
U
X
|j-i
W 00
i^l 10 0 g rj -H
S s " H -32
a o
M O.
CD O
4J
^-4 	 1

U
a
M
I* r^'
M 03
4J
o o o 5
ro 
-------
         O
          in
    m o °
IN  Oj Ol
M  O r-
••d  rH
                  I CO
          in in o
          vO CO CO
          CO CO I/I
           CO H
rH ^
f. CiJ
(1J ll-i gj
O "^ "^
/"^ £^ f-^
E~* E-*
CJ
<; H

w w
H t=
CO r3
<} (xj
^ P-4
w


















^
o

CJ
4-1
cfl
o
Xl

co
a>
C
•H
pn

^rj
O
0
3
'T3
rj
3
O
M
O





rrl





CO
co
cr.
/^*^ rH
W
S
rH
H
O
0
^u
.^J
O
H
-3- in
CM I^.
00 CO
UO rH
,

4-J
X
W
o in
OO CO
in r-l
. -*~ 	 j
~VJ I — 1


. <± o
»
4-J
c
M
 1

                      p

                      p

                      o
                      o
                      CO
                               Q)
                               N
                               •H
                               CO
                                     CO
                                     oo
                                     Ov
                                      CTi
                                      rH
                                      o m  o in
                                      o m  co r--
                                      csi m  o -D  CO OO
                                               OO  CM CN  I
                                                 n

                                               rH

                                                 •    •   «   •

                                                rH CN CO  "3
                                               o  in o m
                                               CO  CO CS vO
                                               r~  00 en m
                                                 *v   *»   n
                                               00  rH rH
                                               o m o  m
                                               CN O n
i^.
CO

CM
rH
ir>
•
1J
X
w
OO
O

O
rH


.
4J
0
M
o
O"1*
r^»
*»
CN
o
p-l
H rH
o
m
in

• •
OJ
N
•H
CO

rH
rH

.'-«
*^
r-.
ON
"



rH
rt
4-1
O
H
0
ON
O
**
o
rH




.1 m
4J
M
W
o

oo


^
4-1
C
V-H
in
oo
CO
rH
m m
*^i* ' P^*
CM u>

CN rH
in in
CM m
CO rH
rH rH



O O
CM CN



• •
CN CO



O in
-1- CO
r - ON
A A
CM rH
o in
CM rH
m m
A *v
CN rH



O O
CN CN
~d" 
C
t-H

rH
CO
4J
O
H
rH

















4-1
to
O
CJ

rH
(13
C
^

^_)
X
W

••
4J

W







CD
O
rt
ci
0)
4J
M
•H
s!

^3

pi
O
•H
4-1
cd
!>-4
a;
a
o
^












4-J
W
Q)
Q)
4-J
0
M

i^j

C
0
•rH
4-1
crj
•H
O

l-i
(X
d)
O

^
CO

            «   •   •

          rH  CN CO
                                                r-H CN CO 
                                       m
                                                rH CN CO
                                                                     482






CO
rH






rH
CO
4J
O
H
m
VD
oo
^




4.J
m
CO
CM




•
4-J
C
M

o
CO
ON
m
OO
vO





m
m






o
rH
o
00
m





o






o
rH
in
o
rH





m
o
rH






1





4-1
(0
O
CJ
rH
03

J_j
a
i i
c
M


4-1
(0
0
CJ

60
C
•H
ctj
rl
O
cx
o
rH
n}
O
H
                                                                                      H CN CO

-------




























x—\
W
u
P3
Z rH
^j «™4
^^ !"• 1
CO 00 O
< H «
ca to p
O UH F-
s: o >,o H
. o ^,
r>> i— i L_, R w o
S fc R Sro §
rH  to W -H
h: r4 w a

r- vo
O -3
«
CO
H CM



00





CO
0.)
ON
rH


r—*
n1
tj
4-*
Q
H
r^ co
CM VD
CM CM
r~i

»
AJ
X
w
O 0
0 rv.
CM rH
r\ *.
ON CM

*.!
C
M
O O
r- ^0
O sr
CO
• •
r-( CM





l*^
r^
ON
rH





rH
rj
jJ
O
H
O in
CM ^£>
r- oo
f\ f\
CO rH

•
W
X
w
m in
CM CO
m \o
r~ !-"


• in o
a
V-4
ON CO
rH rH
ft
rH
• +
rH CM
m o




co
t>-
ON
rH




f-n
cU
4J
O
[-1
r~ H
ON r~~
CO


»
4-1
X
M
o in
m oo
H in
CO

•
U
a
M
in in
CM CM
CO rH
• •
m o
O\ 00
m in
rH


in o
CO OO
rH in
*
rH



0
VO I
•tf


CO 
H
in
. CTN
u
, *
w
CO
r
CM
r-(



Jt o
u
M
0
m
'• *
m
rH









CO
CO
CN
rH

O
Pk
~t ^
r™t
r^
l^
4J
O
E-i
ON
r-~
f\
o
' C>I
. "^
.u
r1^
W
ON
CM
«\
m
-H

•
u
H~i
O
O
m
H in
§ H
fs^


*•
0)
N
•H
CO
rH
rH
•H
£
r~
C7N
rH





rH
cd
4J
O
H
m
ON
ON
t\

rH




1 — 1
rt
w
0
H
CM
CO
f\
r*^«


•
4->
X
w
m
rH
VO
m

J ^
*J
C
M
O
f~»
ft
i-H
•
m in
CO CO
F~« VD
* »
CO CM

O 0
rH VO
ON CO
ft r\
CM rH




in in
OJ . J
CO OO


CM CO



O .-i
r-- CM
in rH
n f\
•3- co

in o
•
CO CM

m o
CO O
ON ON
CM rH


in m
in m
CO CO


• •
04 CO
m o
l>- 0
CM rH
r\ ft
Hi
r~* 1

o m
CM 
rH





1



(3
M

rt
+J
o
H

rH





.U
CO
0
o
rH
8

3
rH
Cfl
B

-------
p..
to
o  in in  o
v«O  CD vO     «   f>   ^
                                                         ^o ro c\i H
                                               m o m  in
                                               CT> rH O  O
                                               \o \o vo  o
                                                 *  *   •>  ^
                                               O CM rH  rH
                                                         o in in
                                                         O CXI CM
                                                         m oo oo
                                                           •s
                                                         in
                                                                             01
                                                                           4)
                                                                           U
                                                                                     S













00
IO
T-l

0)
1 — •
_Q
h-






















co
W H
O CO
%Z
CO ]H
Q W
W S
H H
M P-,
H H
<£ E~*
W W
CO J
3 ^
W






rH



O



ro
x-> CO
w en
J-* rH
cd
rH
i-H
O
°Q
>-,
A
OQ
m
4-lj C^
rj
M
rH
».
fsj CO «^ rH



m o in .in
O \O ^~
o o cy>
ro CM
in o in
in >O CTi *"!
.> « CO
1— i
4J
O
H
CM
ro
ro
CM
m
•
jj
X
CM
CO
CM rH JIJI^1 r^'


0 0
vD \D I Q
P-<
H
rH

•
a
O
o
in
*\
in
... o *
CM ro -^ o *">

o in >n ••
••3- CM H flJ
CM in r^ N
^ r. tH
CM H w
rH
rH
o m in rs-
VO ~* tH I**
O ro r-» O>
f, *. rH
CM rH
0 0
00 CO 1
t — I f — I

rH
c$
o
CM
in
*\
r-~
£-' rH
1 1
rf
f*-«
O
^
^
in
T-l
J ^

C*
H
in
CO

CM CO •



o in
00 O
tH m
M ^
in co
in o
m oo
CO vO
*b «V
-CJ- CM


in m
CM CM
CO 00
• «
CM CO

o m
O c^
O> vO
CO CM

in o
<• oo
in CM
^ rv
CO CM

m m
in m
CO CO

•*



m

rH
in
r-
rH


1
^

m
^O
1
n
rH

m
CM

rH


1


(0
(U

£j
H
3
4J
O
H

•
iH





>J
0]
o
o

rH
cd
Q)
X
w


• a
M
w



t4

G
O
^
2
Q)
O

•
>*



:erest
•v^
fi

c
o
*d
TH
O
ni
a,
Oy
w

.
P-)



                                                         CM
          rH  CM ro
                                                            JM  CO
c-i
I  -
          in o in  m
          r—• rH U\  rH
          CTI r-x in  rH

          ro"
o in  o m
m 00  1^ r-H
rH in  
-------
                                           o in o  m
                                           oo -o- o  -a-
                                           in oo co  in
                                            «\  •%   «*
                                           OO rH iH
                                           O O U-)  m
                                           ^t CTv  \D rH  in
                                           o to  m
                                           <• m  m
                                           O rH  rH   I
                                         >H  CS  CO
                                                        o  m in o
                                                        CN  r-- -r^ O
                                                        oo  CM cr< co
                                                          *  ,~  „   «
                                                         r--.
                                                        in vo vo
                                                                                                     CN  CO
                                                                                                                        o
                                                                                                                        o
                                         01
                                         o
                                         c
                                         cd

                                         0)
                                  C      -H
                                  cu      crj
                                  a      a
                                  4-1
                                  CO      <^!
                                        c
                                  C      O
                                 M      -H
                                         4-1
                                 rH      Cd
                                  Cd      ,K
                                  4J      01
                                  o      cx
                                 H      O
 O)
I—
.O
 rO
                               CO
                               00
                               rH
                                          O O  O  O
                                          r^ O  vo  ^f
                                          i-» CM  v^-  r^
                                            «>   n   «\
                                          O> CSI  rH
o  o  m o
co  
00  rH rH
                                          o  m  o in
                                          m  co  co m
                                          m  ^o  rH m
                                          o o  o
                                          o in  in
                                          O rH  rH







CO
oo

rH

p
P-I
H

O
rH
cd
4-1
o
H
m
CO
oo
•>
CM
CM
•
4-1
X
w
m
CO
CO
«>
oo
1 1

o
•
4-1
c
H
o
m
f<
sj-
CO
m
rH
• •
cu
N
>rl
oo-
,_|
rH
•H
•sj
<^<


r^
r^.
o\
rH




3
4J
O
H
o
rH
rH
ri
00
H

O
•
4J
X
w
o
oo
•\
in
rH
o
4J
a
M
rH
CO
CM
O
VO
O

in

in
oo
CO
«\
n
r^
vO



•
co




m
rH
r^
n
CM


O
r-~
CO
*i
CM
in
  r~~  V£> rH
CO  rH  ON CM
                                                       o  m  m
                                                       CO  rH  rH
                                                       
-------
0)
(0





















^-s
CO
M'
to
i — i
rH
%»*
S^og
00 M
W r_i <1> w
O C 4J T3 0
P g crj C vo
t3 H 0 CO H
nJ fj ^3 CO
co 3 3 3 ..
«SW-S 8
£nSH -^
3 ij <- w
SgS5H
H W -j co J-j
u •=? w 4J 5
 cr> vo
W •- «
VO rH
. o m m
• I H CM CO •*
o o m in







CO
oo
CTi
rH


,_j o r^ r^ CT\
crj CM in vo oo
• I *»**».
0 rH CM rH
,H '-'
o in o in
. VO rH CN O\
4j rH d- m m I
w 0 rH rH
a
£ *

rH CM CO -*




r^
r^
o\
rH






*"! o m m o
5 00 0 0> rH
rr ON CM si- r~-
o * " "
" ON CM rH
O in m o
OO m ~
M " - "
r^ CO CM rH

O 0 0
• o m in i
•*•" 0 rH rH
d
M rH
• • • •
rH CN CO -*
m o o o






CO
r^
o-\
rH



i-H r^ 
Pi
M
o
0
m
*\


o

g
M
rH
CO
4J
Q
H
0)
a
a
cfl
c
0)
4J
a
•H
CO
s
*•#

£
Q
•H
4-1
to
^
d)
P^
O
                                                                               H CM CO
in






co
00
CT\
rH
Q
p ,
H

0
rH
CO
4-1
O
H
O
VO
f\
VO
CN
in
•
4J
&
VO
•rH
*
CN
W CN
O
O
4J
c
M
ui
««
XT
^
^ rH
• •
0)
N
•H
co-
rn
rH
•H
S

[-•^
r^
Q«^
rH



^
4J
O
H
O
XT
CT>
*\
rH
CN
O
fy-j
^o
4-1
^.f
ri
M
CTi
rH
O
•
4-1
pj
M
rH
CO
Ol
O O
CM 00
CT\ 
00 CM
ft ft
 f\
*



m
o\
in
ft
i-H
m
o\
m
ft
rH


|











4J
CO
0
U
rH


)-l
Q)
4J
X
W
4-1
X
W













4-1
CO
(1)
^
0)
Jl
•M
c
H
^

C
o
•rH
4J
CO
•H
O
0)
i-l
P.
0)
P
CO






                                                                               rH CN 0-1
                                                                       CO
_. 0
rH
CO
4J
0
H
CM
00
ff\
r--

O
J
X
w
Ul
CO
vD

o
«
jj
c
M
CO

-------
 CJ
 p-l
 co
 53
           m  o o o
           00  rH t~- -3"
           r-»  o -* m
             •\  *  *\
           CTi  CM rH
 in in  in o
 H CM co






rj
Pu
CO
53






,_4
ca
4J
O
H
0
rH
rH
00
* rH
O

4J
X
rH
vO
ft
CO
rH

o

4J
«

O
"I
Sf



r-H
O 0
-d" CM
CM r~

in
•
4-1
X
W
rH
00
oo



*
4-1
£
0
o
M
rH
C S
03 H
CO .. ~
3 CU
0 N
F° ^
H CO

C |— (
-1-" rH
CO g
4J *
CO
O
O f»^
J«^
rH <*
< *
^-S




rH
CO
4-1
O
e*
m
oo
m

oo"


in
•
4-1
X


4J
c
M
oo
m
«
^
o
o
0
n
o
(^
rH

CM
m
rH
O
CM



m
m
rH

•
CM


m
m
r-~

H


m
o
vD
t
rH
O
m
rH

m
r^
^J-

rH
O
CM
CO
rH



in
m
rH


CO


m
00
CM
ft
rH


m
CO
rH
•>
rH
O
in
rH

m

vO


m
ON
vO




1



•*


o
r%.
^j-




O

 f>
 r*^
vD vo



• •
CM CO




o in
co r^
CJN r^
ft f.
CO CM


m o
00 CO
m 
X
w


..
4-1
w








o-





4-1
CO
01

01
•1— 1
a
i— i

<•&

c
o

4-1
cfl
•H
CJ
0)

p
OJ
o


CO








                                                              i-H CM  CO
CO
              o o  o
              -d- CM  CM
              vo m  rH
          co
m  o o o
P^  m co CM
oo  m  o>
                                                   CO
_J
«
4-1
o
H
o
CM
00
**
^



J
X

*^
o
CO

vO


•
*J
c
M

o
CO

-------
CJ
PM
CO
z
          in  m O
          o  rH m
          O  O CO
            **  ri  *\
          O\  CN rH
          m O m m
          H CN CO
                                                              rH  CN CO



















CO
f*"'
• '
CU
JD
(0
























cu
oo
13
3
rH
CO

rO
CU
4-1
Cfl
.IH
4-1
O
<

















CO
H
co
o
o

H
a
&4
g
M
fyj
H
H
§
3
tn
w

















*•*•>
S-i
0
00
CU
4J
cfl
O
o
CO

CU
4-1
•H
rH
3
4J
0)
J-l
£




in






^^ •
CO co
b °°
to en
•H rH
rH
0
P Q
Q
t [.-j r i
O
en o
rH
CO
11
0
,H
0

rH
rH
in
vO
i
4-1
X

CO
ft
O
rH



O
*
4J
£
£>
CO
f.
P^
CNI
O
vO
*
4-1
X
OO
ft
CN
yo
""


0
•
4J
C
M
0
in
f
-3-
O
CO .
in i
• •
CU
N
•H 0


(H j
rH
•H
a



-^
(^
rH



f^l
ccl
1 )
o
H
^j-
CO
f<
CN
CNJ



O

W
c3
CO
O
o"
CNI
o
4-1
C
M
rH
^
O
CO
vD
^
vD

m
m
o\
•V
m



in
r~-
v^



,
CM



m
CM
o-
ft
m




o
00
o
in

m
CO
in
o
r— j
A
^-

0
m
xj-
n
CO



in
i — »
**o



.
CO



o
in
CO
f>
CO




in
o
o
CO

m
CO
in
CNI
m
A
CN

m
CN
m
ft
CN





1



.
*^-



in
pv.
o
*
CM




in
p-^
o
CNI


















4-1
CO
O
C_>

rH
CO
C

OJ
4J
KX
W


• •
4-1
X
H















4-1
CO
CU
cu
4J
c
M

^3

C
O
•H
4_)
Cfl
•H
CJ
CU
^J
Pu
0)
Q


•
CO







              CN CO
                                                              H  CNI CO
CO

CTN
    W
          in o  o o
          r-~ -d-  CNI CN
          -3- vD  in rH
            ft
          CO
          m o o  o
          i^ m co  CN
          00 m -3"  rH

          CNI
          O O  O
          O CT*  CT*  I
          rH-CNI CO




CO
r-.
rH





. 0
«
1 1
fi
CNI
OO
<-"

4^
W
o
ON
CO
\o


*
4-1
R
M

o
CO

rH
•
	 1
m
00
CO
rH

O
rH
rH



m
rH
CN

*V1
m
rH
t\
rH

O
ON




m
rH
CN

•
Jf^
O
rH
CN


O
rH
CN





1

•
_
-------
                            CO
                                o
                                H

O  IT) O 1/1
vo  m oo r~
ON  <3\ CT» O*v
                                                                         to
                                                                         pv.
                                                                         V)
                                      O
                                     H
                                     K
                                     W
                                                                                                                0
                                                                                                                U
                                                                                                        3      g
                                      •H CM CO •*
                                                                                   r-4 CM CO
                                                                 09
                                                                 0)
CO
 a>
 (O











fi
•H
W
ctf
fQ

Cl
O
•H
ibilizat
TO
4-1
CD
13
a)
J-J
nj
t.
M
a)
<:




















co
x-v 00
to en
H rH
&
rH
rH
W 0
H a
en P
O  co
o-> en o co co
o~> 
rH rH
JJ
3

0 O 0 O
vr >* -* Oi
cr\*
w rfl rt m
si a S^
H rH (0

rH
rH
^
X^

•3
«
H
•«'
Q)
in m o in N
vo in o m -H
m o r- co w
r^ 
kj| vo cr> m co r«*
Q vo CO CM rH o>
1 rH rH

AJ
r5
o o o
r^ co co
CO rH rH 1
rH
03
iJ
O
H
*
*-"|
K
w|


4J|
O
•-*
* • • •
rH M CO Sf



CO
f^
cr>
rH



71
1
H
•
#
ii
m o o o
ON CO sf 

                                                                        rH
                                                                                                         to

                                                                                                        3
                                                                                                         0)      U
                                                                                                               CO
                                                                                   rH C<» CO
                                                                                                                M
        «
H      M
 «      «

 fi     5-
                                                                                                               5-
                                                                                 •o
                                                                                 o
                                                                                 •o

                                                                                 r3
                                                                                 O
                                                                                 B
                                                                                                                         8
                                                                                 to
                                                                                 >»
                                                                                 w
                                                                                                                        > CO
                                                                                                                        o
                                                                                                                        o
                                                                                    M
                                                                                o  o
                                                                                          
-------
          oooo
          oo oo m co
          vO CM CM O
          CM



          OOOO
          H CM co
                                                            rH CM  en sj-



















«*
r^.
r-l
CD
JD
ia
t—


















/— s
CO
J-l
CO tfl
H rH
CO rH
O 0
CJ Q
H 44
W!3 4J O
O W -H
Q S IH W
£3H rH T)
rJ8 
CJ
fH
^cr
o
9
CM
m
m •
rH
• •
*
en
rH
rH
•H
S


f-^
r^
cn
rH



rH
n)
4J
O
ti
•~D
»
i-H
CM


in
r^
. r—
4J
x
ta
•
4J
rj
H
*
o
CM
O
r-~
00

i-H
in
tH
CO
n
vO

m
r^
oo
^
m



o

vo r~»
r^
rH OV
rH

1

i— 1
td
4J
O
H





.
4J
«
W
4J
C
W







« • • # •
^- rH CM CO <•
cn
           LO o  o o
           cr\ ex)  
-------









































Lf>
r-»
|--- 1*

CD
i —
.Q
to

m


































c
-H
CO
cd
M
C
O
•H
4-1
cd
N
•H
rH
•H
*Q
cd
4J
CO
13
Q)
4J
cd
rl
01
H
O






/-N
cn cn
rl 00
>-, Cd CTi
CO 1-1 rH rH
H a rH
CO 60 O
o 
cn
CM



o
4J
rt
H

«t
. CM
3 3 to in
2 co na m .
KG H
 Cd -r* -H
sUs*
E] rH 4J
S 
rH
CS
CM


O

J
X
pa
•
i j
c
M
(^
CM
rT
CM
O
r^
00
in
CTi

CTi
^
rH

1
                                           Q
                                           PL,
                                           H
                                           0)
                                           N
                                           00
                                           •H
                                                    ,
                                                      °
                                                     H
                                                  o
                                                  PM
                                                  CO
                                                  53
                                                    IS
cn
oo
o\
                                                      a)
                                                  M
                                                  r-
                                                               CM cn
                                                            H CM  CO
                                4-1
                                CO
                                O
                                o

                                4J
                                c
                                o>

                                4->
                                ca
                                a)
                                                                                  o
                                                                                 H
                                4-1
                                M
                                O
                                Cd
                                C
                                V-l
                                a)
                                4J
                                X
                                w
                                                                                 w
                                                                                         o
                                                                                         C
                                                                                         cd

                                                                                         
        o
       •H
       4-J
        cd
       •H
        o
        cu
        ri
        a
        0)
       o
           CM
                                                            rH CM  cn
iS
       m o o  o
       a\ oo 


                                      60

                                      •H
                                                                                 cd
                                                                                 C
                                      QJ
                                      CX
                                      O
           o o
               en
                                                               CM  en
                                                                                 C
                                                                                M
                               4J

                               C
                               M
                                                                                        O
                                                                                       H
                                                                                       CM
                                 491

-------









































r^
i-H
cu
re
I —











































CU

13
D
rH
C/}
"O
4J
CO
•H
4J






































CO
H
en
o
CJ
E~*
Sj



<3
H
H
1
fa
fa
w




































^
s-l
O
60
CU
4-1
cO
o
t*l
3
C/3

QJ
i i
•rl
<4H
rH
3
CO
cO
d
rH
pCJ
00
•H
tn


o








CJ
cu
to
S3




rH
cO
4J
O
H
2
^
CM
CN

O
rH
•
4J
X
W
l1^.
n
O>
^

•
4-1
a
H
o

CT>
*
CN
>^
in







^^
CO CO
M CO
cO O\
i-l rH
rH
O

14H ^
o H
O
r-H
CO
4-1
0
XH
CM
CM
f\
O
co
m

,
i i
^
TT^
CM
*\
r^»
CM



O
4-1
c
fi
S
•»
CM
co m
13 in •
£ H
cd ••
§3
r£ CO — 1 O
H
r-l
CO **
4-1
CO
0 r-

CT\
i — i i_i
H ""*


cfl
^
0
CM
in
^j

..•^
rH
r\
in
W CM
.
4-J
c
M
o
OO
o
o>
^
m


o
CM
m

m


o
^j-
^j-


CM
O
00
0
*
00

0

vO
r\
f^.




o
5



*
CM

m
o
^

m
Cy">
M
V0

0
CO
rH
m
ON
CO

CO


m
m
ON.
„
CM


O

st


co
o
CO
in
r>
St

0

!— }
A
sf




O
Sl"
st



•
CO

0
m
ON
CO

o
CM
00
*
CO

0
CO
rH
m
m
^,
CM


m
\£)
m
*
CM




1


s?
o
o
m
f>
CO

o
o
m
«\
CO





1



•
^*

m
m
rH
CO

m
m
i-H
f\
CO


1
                                                             o
                                                             H
CJ
CU
en
z
                                                              cd
                                                             4J
                                                              o
                                                             H
                                                         co
                                                         oo
                                                              C
                                                             M
                                                              CO
                                                              4J
                                                              O
                                                              H
                                                              4-1

                                                              3
                                                              c
                                                             M
                                                                    r-l CN OO
                                                                     r-\  CM  CO
                                                                              4J
                                                                              CO
                                                                              O
                                                                              CJ


                                                                              4-1
                                                                              C
                                                                                          CO
                                                                                          OJ
                                                                              n)
                                                                              4J
                                                                              o
                                                                              H
                                                                               CO
                                                                               O
                                                                              CJ
                                                                                          cfl
                                                                                          C
                                                                                          SH
                                                                                          CD
                                                                              W
                                                                                          4->

                                                                                          W
                                        0)
                                        O
                                        C
                                        to
                                                                                                 c
                                                                                                 •H
                                                                                                 C
                                                                                                 o
                                                                                                 •H
                                         Q)
                                         P<
                                        O
                                                                                      4-J
                                                                                      CO
                                                                                      CU
                                                                                      M
                                                                                      CU
                                                                                      4J
                                                                                      C
                                                                                      c
                                                                                      o
                                                                                      •H
                                                                                      4-1
                                                                                      CO
                                                                                      •H
                                                                                      CJ
                                                                                      CU
                                                                                      CL)
                                                                                      P
                                                                                                 CO
               CM  CO -it
                                                                     1-4.  CM  co
CO
            in o o  o
            o> oo -st  -st
            CM CO i-l  CN
             f,   ft   ft
            r>. i-l H
O  O  O  O
00  CN  00  
-------
 10
 PH
 to
 55
    W
           rH CM CO











2=
00
•a:
ca

^t
r^ o^
ps, *~~*
i-~f ) —

3
CO

V]
C
•rl
CL)
P














x™s
co
rt
rH
rH
O
Q

•4-t
O

05
na
C
0)
W
3
O
£1
£-t

C
•H
CO
4J
CO
o
CJ
3

rH
nt





00
oo
CTi
rH





. !
o
H

O
m

st
4J
x
£
m
o
CT*
CO



4J
C
M
m
»^-
r^
Q
Pk
H rH



O
00

• •
a)
N
•H
co

rH
rH
•H
•&

f**
B


rH
cd
4-1
O


in
m
rH
-3-




•
4J
X
W
4-1
i-l
m
in
m
CO
O
0

o
ON
o
rH
O
co
O"N




o
H
rH

•
CM





m

cr\





m
in
03

o
SI

m
H
r —

LT,
o
vO




O
rH
rH

*
CO





0
-vf
vO





O
m
in

o
cr>

in

CO

m
r-^
ro





1


i
- m  vj-
                                       VO  f-s rH  vO
                                       1^  i-H rH
o  in in


rH  H rH
rH


  •   •   •

 rH CM  CO
                                                 o m o in
                                                 m co l    -
                                          Ml
                                       O  O «~l  "~!
                                       <3-  r^. r-»  o\
                                       rH  vo o  in
                                                 o  m m
                                                 rH  VO VO   I
                                                 rH  H rH
                             CO
                             oo
                                                                              m o o o
                                                                              CM 
                                                                                        CT\ CM  CM
                                                                              rH  CN CO  -fr


                                                                              in m  in o
                                                                              co o  o o
                                                                              CO CM  O CM
                                                                               f\   f\  A   A
                                                                              CO CO  CM rH
                                                 in, in in  o
                                                 O  rH rH  O



                                                 I—1  CM rH  H
                                                 rH
                                                                              O O  O
                                                                              co o*v  c^
                                                                              O"\ CN  CN
                                                                                                              0)
                                                                                                   4J
                                                                                                    d
                                                                                                    (U

                                                                                                   B
                                                                                                    co
                                                                                                    4)
                                                                    CO
                                                                    U

                                                                    I
                                                                    0)
                                                                                                                    C
                                                                                                                    O
                                                                                                                    •H
                                                                                                                    4J
                                                                                                                    of
B rH

0
CO
CM

• •
  in o  in
CM  m 01  VD
CM  CM rH
          O O  O
          O vo  vo
<•"-)



r-t
                                       m m o  in
                                       oo CM 
-------
PM
   ,-H
    rtl
   4-11
    Ol
              CM  CO














GO
ri H
» CO
o o
S u
rH o m o in






CO
CO
ON
x*x rH
W
rt
rH
rH
O
P
l« rH  CM CM r- -cr
0 ~ •<
H in rH
• m m o 1/1
4-J vo co oo m
X -^ rH VD O-
w •> -
~>MH CM ....
M 0 H rH CM CO -O-

CO
*^
r—
10







CO
P
w
ACTIVAT

H
^




i. '
W
K
s
w
3
tn
pn
w




60
CU
4J
rt
a
CO
a
•H
CO
P





tti
13
\j
co
3
0
d
•H
w
4J
co
o
o
rH
3




o
co

ai
N
•H
CO
r-j
r— »
r--
rH



Total
in
rH


4-1
rV^
.
4J

k~l
in
rH
rH

O
O
' ' VO



o m
O rH
rH i^
rH


o m
rH CM
O vo
rH

O O
O\ O^




m
CO
CO


m
CO
CO


I

                                O
                                CO
                                CM
                                 (1)
                                 N
                                •H
                                CO
                                       V)
                                       53
                                        in m o
                                        co 
           rH  CM CO
                                        m o  in m
                                        r^ oo  o t-^
                                        vO I"*-  CD f^1-

                                        VO rH  rH
                                                   o in  m
                                                   rH vD  vO
                                                   rH rH  H
                                                 rH  CN CO   -J
                                                   CM CN  CO 00
                                                    ri   ri  rt
                                                   ON CM  rH
                                        O O  O O
                                        ^j" r^^  co   ON
                                                                                         ON CM  CM  I
                                                                                         rH CM CO
                                                            cu
                                                            B
                                                            4-1
                                                            CO
                                                                                                              c
                                                                                                              M
                                                            4J
                                                            £
                            CO
                            CJ
                            C
                            rt
                            0
                            CO
                            4>

                            •H
                                                                                                           O
                                                                                                          •H
                                                                                                          4J
                                                                                                           rt
                            (X
                            O
o
o
m

cu
N
•H


rH
rH
S

r^
i~-*
cr\
i — i



rH
rt
4-1
O
H
o
r^.

CO
1




4.J
M
w
m
oo
ON

rH
rH

.
4J
£
m
oo
rt
rH


m
^^
o
rt
CO





0
CM
CO
.,
CM


in
CM
CN


0

oo
rH





m
CO
vO
rt
rH


m
CM
CM


m
00
rH
rH





in
oo
rH
rt
rH




1


4-1
CO
O
0

rH
rt
G
S-l
cu
4-1
X
t^


••
4J
X
W

4-1
(3
M

o3
a
o
•H
4-1
rt
•H
O
0)
M
(X
0)
P

.
CO

                                                                                         rH  CM CO
 CO
 (^
 O\
    w
           m  m o
           CM  H m
           vO  CO CM
                      in
m  m o  m
CM  CM ON  VO
CM  CM rH
000
f^ vXD ^O   I
                   CO
                                       CO
                                        in m o m
                                        oo CM ~* oo
                                        oo m -3-
                                         rt
                                        CM
o  m o  m
in  
-------






w
(X
w
S3





rH
IQ
4J
0
H






•
u
X


W
(X,
w
SR



•
4J
C
h_l


iH
«
4J
O
H
in in in o
CO 00 O 00
r^ in st rH

CM

4J
X
o m in o
rH i-H CO 00 W
CM in CO rH P-i
W CM »


•
4J
C
M

m o o
in
rH
«
4J
O
H

m o in in
oo CM -* r^
ON o r~- CM
>* rH

U
X
o m o in
 B S
1 A 1
r-t •-•
CO <-0
• «•• • • » « • • • • * > G
C O
H iH



00
ON
/-v H
S o«
f /^ £^ ^"•'f^
 H TJ CO
?5 , , C
Q W ^,-H rH
UJ t3 S? rH
H- iJ fj CO -H
ei; fu *; W 2
r • tn CM
uj W 7 o r-.
f** 1 QJ JSfc,
"** fi ^
0 H r-i
^* rH
s«^


r-f
CJ
4J
O
H
in in o in ..
r^ CM in r^> #
ON CM rH ,;;
•H
C/3

H
rH
•
4-J

fa}
^H
in o in in a
r-- co o r-» *^
SO rH rH r--
f*^.
ON
rH

^j
M
o in m
o J
M «J
CU -rl
.
u
rH 01 rH rH r-, ; '. '
" r-
rH CJN
i-H
i.)
J3
in o o
rH \O VO 1
M  H H
rH (M CO
                                r-H CM CO
                                                                  -( CX OO









CO
r^»
ON
rH








rH
«
4J
O
H


i/i m m
>£) CM CM |
rH


B
4-1
X
w


CO
till f-
ON
rH





.
u
c
*-*

m in m
. VO CM CM |
r~t
-H
'•^
4J
O
H



o in m
CO CO CO 1
CM


4-1

X fo
r*J| ! I 1 1 r-~
ON
I-H




.
U
C
>— t


o m in
ro <"O co 1
CM
rH
!Ci
4J
O



o o o
H t.^
o t:

1 1 ! 1 ••:
rH T!
rt ±4
G "J
v-i ru
cu o
(.'. r~l
*
iJ
^
^1 -J
i :
O O O
t' ' O- CO TO 1 • • ': •
m *
                  495

-------
00



r/>
pj
to
55







rH
to
4J
O
H
•
4J
X
W




to
Pn
to
&




U
(3
M




tH
CB
4-1
^
in o o o
00 LO VD O>
n ,, t!
 C '
c o
H TH
oinoin _j inooo







ro
cj>
en
s~* — f
. co
^ M
j^ M
O F-H
^ r— i
r/1 M) r-j
K H CU o
O co 4-> R
rn
rt
u
o
H
in oo -
•H CO
CT,
t-H


B
AJ
a
M

i — i
ort
W
4-1
0
H
r- - IN •-j u y >»H a*. .... d, .... pij .... co
h-l rQ O H r-H CN rO  ^-j ft) 3 ., I 53
H "-„• 0 'i' -'J
H H "O -3 N •" 3
U 0) H -H
-^ -~i J-J Oj
z: 
AJ H
i.O O O O 61
CTi r-l IT) vD o  - o o -H
Cj — <
| O O O O W O
O C-, XI rH ';J *J[ vD r-» T-H vO M ft)
rH C-J r-l ..-i ' 1 X
«v r~
r-l r--
1 o
r-H
.1
!*j
1 -, '.o o o
j'-l rH ^O VO |
i  cx,
CN V
PI

.

! a
jr-J
<-l
1 X •
i W fT
| LO O O
! ro 
o og CN i
rH

r
1


^1-)
r-
O"%
r-H









^)
X
fj.j


iiii ::?
O'»
rH





^
;-
'>!
O
i-H
O LO LO
0") OO 00 |
CN




IJ
•"(
P-l


1 ' ' ' s
0
f-H




,
LO LO 'O } ",
vo 0' r-l | . --

3
H
0 O O
-,-r co oo i
LO


1 1

AJ
X
W
M
0
1 ! 1 1 u
H
W
«
M
«i
C
' M
o i o LO • ^
.TO n mi |,^;
0 0 O

-------




A<
CO
55




r-
c
H



•
X
w
PJ
CO
X

•
4J
(J


r-i
r-J
rt
o
H



,
^
M



.
^J
a
M




• • • • »
rH CM CO ST rH







/•«•, co
M V< rH
2, O "5
*— ' a) r- 1
<-o t/i jj o
§K 3Q0
0 ,nU-| {X,
rH
«
^*
o
H
in in o m
co CJN cy* co
C--J CM rH rH
rH

• m o m in
4~i
X
w
sr CM rH 0 £
r^ CM rH rH CO
CT*
H


•
fi
o in ui
o^ r^» r^*» i ^^
vr lij
rH
4J
O
H
m
oo
rH

• m
W
m
rH
•V
rH


i
1— I
0
CM
^ 0 3 0 H - P ' "
o M
>~ ' £H W . . . . .
i — 1 ' *^ <1J t3 in rH CN CO ST in rH
00 ^j W 3 fi rH CO
rH ^-i CO y
— tH CO i-0
cu — i <; ,r( p .. .,
1 ^~^ W £H O d)
-Q ca vii .C N
,2 2: H ^ H -H
"~ f~r D u>
CO r_| ^ j-<
r-, V\ Cfl -H rH
c .3 gi,M ^
Qi fii pj O r~-
~; vi-i hH C>v ov<
^^ 1 rH
0 rH
,-9 '"*
sj<



!f~1
tj
1 >
O
'H
o o Ln in fl!
r"^ ^ <3" *O M
CTi CM rH -H
rH
rH
•H
K
o o i-n m *-•
\o m oo \o r»
W '-O : — i 0s*
I—I


•
w| ooo
d
M
rH
«
•Ui
O
H
m
m
A
rH

.u
X
W
m
CO




4J
rH \O MD 1 ' r;
-*
Hi
O
Cx]
vO












•
CM


m
CM
^j-


m
rH
CO




o
H
,H

CM



m
0
CO

0
rH
CM




m
C7N













• •
CO sT


m o
00 -*
CM rH


in o
r^» sj-
rH rH




O
rH 1
rH

co sr



o m
CM OO
CM

m m
CM OO
rH




m
CT» 1







m
3

4J
g
3
4J
CO
f>
a
H
tg
4J
O
t->
.
rH








CO
O
o

vH
rt
fi
CD
JJ
W

a*
4-1
X
w








4)
O
3
Q
4J

"3
K

*a
a
o
•H
4J
R)
J_4
(U
to
*
«*




co
4)

M
4^

P«
o
•H
rj
•ri
O
0
o"



c
en



      H CM
                                                  tn
'-I I
Ol
Hj
      O O O
          <   I   I
      O O  O
      <7i co  co






r?
o
vH



r-i
cj
4-.I
:S

o m tn
CM


• ^
ij
X
U-1
1 1 1 i



•
!J
M
o in tn
o> 
£"
rH

O
     H
                        497

-------
V)

to
53
in o o o
vO OO O> O*»
CN \O   CO CO
00  rH rH
           i-l CN  CO Sf









^^
^
XJ
C
O
o
»- ~*

00
I— 1
O)


ro
r™





















Z
>-~*
co

s
O
t — 1
I—
M

—,\
i — i
h^
oo
LU
1 —
cd
UJ




















CO
H
O

P-I
f?
i

•*^.
H
W
•t
fe
W













0)
3
g
•H
C
o
u
&
H
O
00
cu
4-1
o

d
QJ
CO
CO
•rl
H

01
4.J
c-j
M
so
a)
d
M
1
d
o






CO
/•-v CO
'-•3 cr
cd
rH

O
a
*4-4 ^X^
,_j
CO
4J
o
H
m
o
rH
M
CO
in
4J
X
, 	 |
CM
W CM"



»
4J
._<
M
O
CO

0 H
co o .
T3 rM t-|
q rH
U)
3 .. in
O 4)
.C N
£-. -H
to
C
"" r-)
rrj -H
4-1 S
O r*"*
U ff,
rH
rH

^
~*~*


Total
n
c-g

. IO
u
£
-T
rH



4-1

M
O
CM
r--.


O
O
r*^


m
vO
m




in
CO
rH


.
CN


O
 O  O O
                                             O O-i  H CO
                                             st in  rH •*
                                                        o  o o o
                                                        co  m r-- oo
                                                        rH  CM r-» 
fH





rH
-•-1
o
rH
CN
"
in
^


o
AJ
m
M CO
w *
CO


•
C!

o
*o
CO
CM


in
CO
0
ft
rH



l^!
in
r-




O
CO
rsi
co


in
CO





in
o
in




0
co
CM
^j.


O
m
CM





o
in
CM






I


03
o
CJ
rH

C
Q)
4J

w


«»
4J
X



PJ
M
*a

§

cd
•H
O
CU

o.

n


•



           rH CM  CO
                                                         •H CS  OO
CO
          m o o
          ro in i/i   i
           I   I   I   I
          moo
          co  m m   i
          CO
            •   «  •
           ~< CM  CO
                                              CO  4J
4j! m o
o m co
H CO rH


•
S i •
1*4


*
4J U*l O
£ tn co
M CO iH


• *
f4 CM
% i
rH



1 1



O
CO I


• •
ro 
0)
o
rH
(0
B
<\>
i»
*j
C
rH

• «
4-1
rj
M
o

60
G
^
2

-------


























CM
00
i— 1

O)
-Q
03
r—

































co
CrJH
CJ W
QO
too
>~I
CO H
£;
Op4
wz;
H H
g<
M2
HH

X
w.


ICO
f^i
to
»


•
4J
Ci
M


rH
tc
4J
Q
H
•
4J
X
W,


1



4J
0)
O
0
1| 1
4J
C
M
I 4J
c
1 ' iU
e
• ••• •••• 4J
rHCNCOsf rHcNCOvf W
Si
>
.5

CO
^^ OO
» CT>
>,M rH
u cd
O 'H
to ~<
CU O
4J 5
cd O
CJ *-l P-l
O O £—4 ^-7- t-. .^ - ,
Total
4J
X
o in o m
O CO rH CN
~'

rH
ctf
OJ
O
H
CU
N
O O UT in "H
r-^ i — I O
. . . • . . . 0
rH ro  co
 I   I   I   I
o o o
O^ 00 OO  I
  •  •  •  a

 «H CM  <•*•> st
ft
w
u
f-i

o 'o m
cr\ 
a
o
cj
to
«
•H
4J
rt
M
o
u«
o
i-H
ifl
4-1
O
M
                   499
                                              
-------



























-rj
^ ^
c Q
O >-i
C J r"^

sp

f i £— '
OJ ^
J~ l-l
^ §
w
t""1
h2







m






tn

en
^



H
rt
4->
O
H
in

en

m

4J
^

CM

CM

•
4J
0
M

o
00
•
rH






4J
- en
C <-N 00
O CO <7\
O ^ rH
ed
M rH
w o o
H -JH Q
en <" Q
0 £ «4-l 0,
t_) CO Q £-!
rH
rt
4-)
o
H
o

^
en
• O

>t
Jv^
oo
W|
CM


*
H
o
1 C"1
CO
ej
r_-i ,Q rfl O •
fe 3 T3 >H H
gen - rH
-LJ ' cfl
n 5' ,i
T—l x- u)
— 5 5 V)
pH « £ N
E_, -H £_, .rJ
- H or,
£tJ -SrH
W S 3
£ 2 ^ £
ti_, H 05 r^
£ to o -,
W rl U CT
(H ,H
C ^
n' 
r~~!
CM

^
v.
..i
in
CJ\
^d~
rH


^
4.

t-

O
CM
0

vO


in
en
in




in
en
rH
•
CM


o
en
00

m

o





in
en
rH

*
CM


O
y.'"


o
in
en





o
rH
m m .in

-* rH


o in
st .

O
* CM
4J
*A

CM

in

•
4-1
a
M
m
CM
• • •
en <» «-•


in in
v0 \o
in CM

o m
en vo en
•vt- CM CO
rH
CO
O
H
m
00
rH
CTv
O

>^
rH
cr.
 t f^ i M
rH



in O
3 ' £
V1J


• in
M
CM
A
CM

. . o
en sj in "

-------




CO
IX
C/J
53






rH
rt
X)
H
•
XI
X
W




CO
P-<
V3
5Zi



•
XI
C
t— i


r-H
ctj
XI
O
H
•
XI
X
M




1






•
4J
C
L_4


- - | ii

• * • • • *
rH CN* CO  s s
- " rH
^ ctf !j
t— i i" rH
££|£
m 55^ o
C "J 'W pn
rH
cd
XI
0
H
o o m m
rH CO rH H
-vf CO CN rH
•\
rH

•
XI

£
o m o m ro
r,1 ^ ^" rH ^-*
rH
(t)
XI
0
H
m o
 WJ -* ^
i — i
Ji 0 in in .
S
M
C7\ I-. 1^ | Q
"t- *""^
"* CU
T-t
•
XI
C
t— i
0 0
C-J rH
f*- rH
2= U 0 H ' H
0 0 M
t— i lH C* W «••* • «
* £ _,„
M »?-. ^"^ co
1-1 % a) w
_j < U 3 ••
r-, tJ ;? 0 01
3 H » £ 5
t- , ^ ^ to
OO 9-i ^ C
Z _, -H rH
— ^ *T3 i
UJ 3 fJ tfl -H
H- f^-y x> 5:
<=c fe 2 w ^
S & « S S;
^ c d
M d
, <;
' x-/
a
-
rH
C8
XI
O
H
o m m o oj i
CNI vo co co S
CM CN rH ^j
r co
I — 1
_l
i-i
•rH
•
XI
X
W
o m m o ^ r-,
rH O CS CO L.
00 01 rH grj
M|


XI
M
M
O O O
rH vO MD 1
--
r-)|
cf.
XI
O
H
ir> m

!-4 ^5
• • • • t •
rH CN CO vf r-1 tN
















• •
CO Sf



m in
CN m
CO rH



m m
rH in
CN rH

O
rH 1
rH


• •
co «a-


c m
00 C
CN H



m in
CO 0
rH rH



m
ON 1
• •
c*5 -d'








XI
co
o
CJ

XI
ft
s«
0)
6
XI
U)

C
M
r-l
rtj
XI
O
H
•
rH










X)
03
O
O
rH
^3
g
C)
XI
M
W
• *
XI
M
pa










a>
0
c
rd
c

-------
































oo to
=£H
00 
O
__ z: u
^ 0
~ , »— • H
tf r-S
c - P 2

ce: ^
uu w
 O H
tt)
O CO O
-Q 13 rH
3 C rH
O'J (3
w

ex o cu
& -C N
^r-J £— I »^1

C
& "H rH
3 rH
CO 4J jjj
•r) CO
H 0
U
tl
OJ rH
nj ^
£_i x^
60
0)
•U
C
1
a
o






to
P-.
CO
is





rH
rt
4J
O
H
O

f-^
^
CO
O
4J
X
(4
f«s^
00
«
CM

4
4J
C
H
O

CO

•
rH










CO
CO
v •
rH




rH
flj
4-J
o
H
o
o
vO
•\
CO

O

X
rH

fx4 n
CM
.
4J
r^
H
O

CO


•
rH











f«v.
rv.
C-.
i-H






•'n
JU
O
H
o
o
o
«
CO


O
j-J
X
w
CO
CN
ft
CM


•
Uj
cl
H
0
CN
r^


rH

o m
rx vo
r^ in


in o
co co
vD sf




in in
CO CO
H rH

• •
tM CO



m m

r^ -m



o o
VO -rH
vO sf



m m
co co
H H


» •
CM CO




m m
CM in
^o ^*




tn in
rH S]'
in co





o o
t--l H
r-i rH

^ ^
CM CO

m
o
CM


m
o w
CM PU

&



1

rH
(4
4-J
O
H
o in
VO rH
co oo

CO rH
• in in
u
X
M
co (^
in sf

VO rH

• in o
4-1
(3
M
1^- sf
CM CO
A
CM
• • •
Sf rH CM



O
in
CM



O
in co
CX CO
' CT1-
H


i Q

rH
rj
4->
o
H
in in
CO vO
r~ oo
* «\
00 rH

• o m
4J
^
rH CM
in in
*v1 • A
' ' VO rH
.
-u

M
m o

CM co
H
CM
• « •
Sf O rH CM

*d*

• j
O C3
r^ N
^H *^
en

rH
rH
0 &

rH r-
C?*v
r-i




1

rH
!fl
iJ
o
H
O 0
CO vO
CM sr
«\ •»
!"*• rH


. o o
4J) r^ co
?^
CJ4
CO rH
*^ ^
in rH


o o

p->
M
vO CO
OO CM
A
rH
• • »
Sf rH CM

o m
CO CO
CO Sf
•t
H
o m
cr\ co
CTi Sf



O
sf
CO 1


. .
00 Sf



in o
rH in
co in
«v
rH

m o
r*» in
CT> m



O
-^"
CO 1


« •
CO Sf




m in
cc r~^
o <••.
^
H


m in
O I^-
CO CO




o
CO

-------
0)



























to
WH
oco
QO
so
rJ
C/2JH
h
x^ Llj
wS
HH
_^ *•—•
<;<;
>w
HCi
H H
U
<;H
s
w w
HJ-J
c/i ,_;

.c



rl n
r,,— > CO
60W O1
0) V-< rH
4J Cd
CtjrH
C_J i~H
,n o
a" «
co Q
^ Oi
,-xO H
rH
CO
4J
O
H
o m o in
r^. o m in
\O <}• CM rH
A
rH

•
W
X
o o in in
oo ro r^ in •**
, — 1 r<^ 	 I 	 i CO
w -••-•-•' ^
rH T""!


•
*J
c
M
o in in , Q
2^^ ' &
rH
CS
4J
O
H
»— i
LO m in o „(
en oo oo o \3
"i m en CM J
~r o
H
W
X
in m in o _I
H r-~ t~- o "
£ cc sr ~ ~>
1 «t
H

«
4J
0
W
OOO

•ui H
C rH
M rH
1 <
d •"-"
O
ZS
rH|
rt
U
0
H
o o o o Q>
r,O -d- CM CM N
O- CO CM rH iH
« CO
rH
rH
H
«,-(
*
j-i
X
w
0000 S
r--- co vo CM 1"-
O CM rH rH !*•
^ fT\
rH rH


4J
C!
i—i

OOO
1 1 ^> 1 /^ 1
rH
d
A-1
o
H
LO O O O ^
C^ OS s^~ U , . i
CN sr to H ^
i
5
•o
ti!
tJ
m m m o $
rH C> ^1" in W
VD m CM H
^ * ».
H U
*r*
W
W
JIJ
«-j
»«1

o in in
.--. ^ >^ - ' ' CM 
03
4)
^4
4*
1 1
C
H
*fl

3
•H
4->
rt
^
o
fl!
^r
P.
£
»••«<

f'"»



                                                            r-l
                    wl
                    C
                         ooo
                         o\ m oo
                         till
                        000
                                                   ro
r-l
t-J
i>
O
fc-i

o '.n in
C* 
-------



























-o
4-1
C
O
u
*fr
00
rH

(1)
'.a
ru












o o in in •
r"
n
4-
t-


to »
PL, >
CO Lt
•7
^c«


4
I
h
co oo 
' •> t:
i « h
o in o in
• 
i CN £ f
*«•*


•
J i
3 o in m <
H cr> co co i *•
o m o m
I-H in co CN
CN r^ CN in
' . « « .
00 rH H
m in o in
ti CO H C\ CN
Jl  -j- oo in
i * "
Jl m H


*, m o o
i tx. vt -* i
^ CN CO CO
••I •
OO rH rH CN

rH CN CO -* r-» CN CO st


r
•U
E
C
O
o
>, co
J_4 ,—» CO
O '0 CT1 !
60 H rH
01 CO
4-J rH
CO rH
crt o o
W f-. .c Q
O CO 3 Q
P O « ••*•• P-<
P 0 OH
H o o m m r
n px O\ r- rH
W sj CTi vO CO J
O
H s^ I


• o in o in _.
w co in -± H <*>
X ^ oo m co °o
j cr> [
CO "^

•
-M
C o in m Q
M CT\ CO CO | CM
00 rH rH H
m in m o
"J - CN in vO
•^ *v ^ A
H S^^


*, o m m o
-J] r- o in in
>< CO CTi CN vO
41 *. n «
00 rH rH

• moo
LJ f*^ •*•-*•!
*r t^ XT sr I
w CN CO CO
^H ^
CN
^ "^ -, ....
cn H P<  r^ 3 o >
S fe S-l O f^
W 00 CJ CTi
Q) rH
•U rH
a d
H -^
1 i^y
1 x*^
PJ
o
13

r-H c o m in 
w « c^
CO rH


»
4J
d o o o
M CNJ rH rH |
•-j o o -n m
W cy\ «o- vo r»
M O 00 CO sf
O a* «s *.
H C?! rH H

» o o in m
J-|l CO WD CO P-
to CN in o vj
?^4 f w- .1 «\
fx. rH rH


• 000
*-• \o co oo i
r; oo CM CN
i"t n
r-^ rH rH rH






0)
U
*J d
01 (3
0 C
CJ (U
4J
4-1 d
d 5
QJ jrl

4J

-------
                                 Table 185
                   INTERNAL EFFLUENT TREATMENT
                        (Costs in Thousands of
COSTS FOR NSPS
Dollars)
     Subcategory

Papergrade Sulfite


Market Sulfite


Low Alpha Sulfite

High Alpha Sulfite

Deink




Dissolving Kraft


Market Kraft


BCT Kraft



Fine Kraft




Groundwood Chemi/Mech




Groundwood Thermo/Mech




Groundwood C-M.-N




Groundwood Fine



Soda


Non-Integrated Fine



Non-Integraged Tissue





Non-Integrated Tissue (fwp)
Size of Mill
Tons /Day
160
530
160
530
550
550
80
230
500
600
1000
350
700
250
670
1300
250
670
1300
100
300
600
100
300
600
75
150
500
150
300
550
300
700
30
100
280
15
35
110
450
15
35
110
450
Capital
Cost
1165
2565
1165
2565
1385
1385
555
825
1450
1935
2640
1330
1990
1745
3250
5075
1730
3110
4790
595
1135
1815
590
1130
1810
525
720
1555
820
1235
1865
1780
3140
295
435
940
370
540
675
1735
365
540
675
1735
Depreciation
and Interest
175
385
175
385
210
210
85
125
220
290
395
200
300
260
485
760
260
465
720
90
170
270
90
170
270
80
,110
235
125
185
280
265
470
45
65
140
55
80
100
250
55
80
100
260
                                           505

-------
1.  Replace Flume with Mechanical Conveyors

The base mill for this estimate processes 1200 cords per day of H to 8
foot rough pulpwood, hardwood  and  softwood,  received  by  rail  and
truck.   The  flume, with coarse and fines removal system, is replaced
by four (4) 3-chain log conveyors each 200 feet  long,  in  tandem  as
shown on the flow diagram in Figure 77.

Most  of the existing unloading facilities and the existing rough wood
storage areas are maintained by installing the log haul conveyors over
the flume structure.  Unloading docks or impact areas are  located  on
one  side  of  the  conveyors to reduce the shock of falling wood from
cranes or rail car unloading.  All conveyors are reversible.

It is assumed that the existing conveyor receiving wood from the flume
will receive the wood from the new log conveyors.   Some  modification
to the existing transfer section is included.

Debris (rocks, etc.) which were removed in the flume by a rock pit and
grit  chamber  systems  will  be carried into the barking drums.  Some
removal takes place through the bark slots in the  barking  drums.   A
rock  drop  out  station  is included in the woodroom conveyor system,
before the chippers, to remove large rocks.

The bark burned for fuel will have  a  higher  concentration  of  non-
combustible material using mechanical yard conveyors.

2.  Use of Steam in Drum Barkers

This cost estimate is based on processing 1200 cords per day of  rough
4  to  8  foot pulpwood, softwood and hardwood, in three barking drums
(Figure 78) .

In converting from use of hot water to steam in the barking drums, the
bark conveyors under the drums  were  replaced.   The  bark  press  is
modified to handle bark during the sap period.

It  is  assumed that the wood handling system preceeding and following
the barking drums is the same  whether  steam  or  water  is  used  in
debarking.

A steam header, from an existing steam main in the woodroom, is run in
front of the inlet to each drum.  Small branch lines inject steam into
the  drums.  The drumming rate using steam will be slightly lower than
with the use of hot water.   Cutting  bark  slots  in  a  solid  inlet
section is included.

3.  Knots collection and Disposal

Most mills have a knot handling system and return  the  knots  to  the
digester.   The  mills  that  cannot recycle the knots dispose of them
through incineration with bark or haul to landfill.  This estimate was
based on conveying the knotter rejects  to  a  vibrating  screen  with
showers  to  recover  loose fibers and liquor, then to a container for
disposal by landfill  (Figure 79) .
                               506

-------
oc.
o
o
o
ex
O
O
o
(Jj
o
el
_J
O_
UJ
CC
                       ;8
                                       507

-------
    t/O
    a:
    UJ
    en
    QC:
    a
oo  —

    s:



•p-  00
U-
    u_
    o

    LU
                                                                                              NIVH  HV31S
                                                         508

-------
                    Figure 79
         KNOTS  COLLECTING  AND  DISPOSAL
                       FROM BLOW TANK
                      STOCK TO BROWN STOCK WASHERS
  WWBL FROM 3ra STAGE BROWN STOCK WASHER FILTRATE TANK
                  TO INTERSTAGE REPULPER BETWEEN 2nd AND 3rd STAGE BROWN
                  STOCK WASHERS
                           CONVEYOR
 LEGEND

—	   NEW

	   EXISTING
                                                 TO DISPOSAL
                 509

-------
4.  Fourth Stage Brown Stock Washer

Essentially all kraft mills with recovery have an equivalence of three
stages of brown stock drum washing.  The amount of liquor held in  the
pulp after brown stock washing increases as bottlenecks are eliminated
and  production  is pushed beyond design capacity.  The liquor carried
over is subsequently washed out of the pulp and sewered with the brown
stock screen rejects and decker filtrate.  The addition  of  a  fourth
stage  of  washing  may  be necessary to reduce the liquor lost to the
sewer to an acceptable level.  A vacuum filter washer was used in  the
estimate,  and the system includes a submerged repulper, filtrate tank
and pump, hood  extension  and  exhaust  fan  and  stock  conveyor  to
storage.  It was assumed that there is space available on the existing
washer operating floor for the new washer.

5.  Decker Filtrate for Brown Stock Washer Showers

To recover a portion of the fiber and caustic in the  decker  filtrate
which  overflows  to the sewer, a pump is added to the existing decker
filtrate tank and used to pump decker  filtrate  to  the  brown  stock
washers.   A  new  heat  exchanger is included in the estimate  (Figure
80) .

6.  Close-up Screen Room

It was assumed that the base mill sewered its secondary screen rejects
and its secondary cleaner rejects.

In closing up the screen room, a third stage of cleaning was added and
the existing atmospheric screens were replaced with pressure  screens.
The  equipment  requited  to  refine  the secondary screen rejects and
return them to;the secondary screen is included.  The new screens  are
located  on  a: n-ew  mezzanine  inside  the  existing building.  A new
primary screens supply pump is included also (Figure 81).

7.  Pulp Mill Spill Collection from Washers

The spill collection system collects any overflow that occurs  at  the
brown  stock  washers, brown stock decker, or bleach plant washers and
pipe the overflows to a central collection point.  A pump is installed
at the collection tank to return the spills at a controlled rate  back
into the system as shown on the flow diagram; one tank is used for the
bleach  washers  and  one  for  brown  stock  decker and washers.  Two
separate tanks are required as the  spills  from  the  bleach  washers
cannot  be put back into the brown stock for fear of getting chlorides
into the black liquor recovery system.  The system is designed  for  a
CEDED  bleach  sequence.  Vat overflows are designed to handle 100% of
production flows.  The  collection  tanks  are  sized  for  10  minute
retention of production at 1% consistency  (Figures 82-84).

8.  Pulp Mill Spill Collection from Tanks, Equipment, and Drains

The  spill  collection  system collects overflows from the washer seal
tanks, digester area equipment and tanks, all of the floor  drains  in
the  pulp  mill, and pipe them to a central collection area.  Pumps at
                              510

-------
                     Figure  80

               DECKER FILTRATE FOR BROWN
                  STOCK  WASHERS  SHOWERS
                              EXISTING F.W.  SHOWER WATER
DECKER
                                                           BROWN STOCK
                                                        \    WASHER
       DECKER
      FILTRATE
      STORAGE
       TANK
I..
 HOT WATER
ACCUMULATOR
   TANK
                                                               LEGEND

                                                               	  NEW
                                                                      EXISTING
                   511

-------
                              Figure  81

                          SCREEN  ROOM  CLOSE-UP
rz^tJ
                                                                 NEW

                                                               	EXISTING

                                                                  WHITE
                        CLEANERS        |
                 PRIMARY        SECONDARY!     TERTIARY
  HI-
(DENSITY i
 STORAGE
                                                                     WATER
                           512

-------
             Figure  82

            BLEACHED KRAFT MILL
       SPILL COLLECTION  AND  REUSE
BLEACH
WASHERS
                            VAT
                           DRAIN
                          OVERFLOW
                                  BROWN STOCK
                                    WASHERS
                                            r
~
V }
^£
i^

BLEACH
STOCK
COLLECTION
~ TANK
7$
BROWN
STOCK
COLLECTION
TANK Q
6~
r^
V J
,
#
fc
t
          513

-------
                         Figure 83

                   SULFITE PULP  MILL  SPILL
                     COLLECTION AND  REUSE
 BLEACH
 WASHERS
  HYPO
              VAT
             DRAIN
        VAT
       DRAIN
            OVERFLOW
 CAUSTIC
CHLORINE
                                                 OVERFLOW
                   BLEACH
                    STOCK
                  COLLECTION
                    CHEST
                   BROWN
                   STOCK
                  WASHERS
                                                             DECKER
  BROWN
  STOCK
COLLECTION
  CHEST
                       514

-------
        Figure  84


GROUNDWOOD PULP  MILL SPILL
   COLLECTION  AND  REUSE
                                         FROM SCREENS
   515
 LEGEND
	 NEW
    EXISTING

-------
        Figure  85




PULP  MILL  SPILL  COLLECTION  SYSTEMS
                     EQUIPMENT DRAINS




                     FROM ALL FLOOR DRAINS
         51fi

-------
the collection tanks pump  the  spills  back  into  the  system  at  a
controlled  rate.   Spills  from the digester area are returned to the
suction of the first stage washer recirculation pump as shown  on  the
flow diagram.  Spills collected from the floor drains are screened and
piped  to  a  dirty  water  tank which has fresh water made up for low
level control.  The solids go to a trash tank for hauling to landfill.
Should a major stock spill occur, it is pumped to a  spill  collection
tank (Figure 85) .

9^  Jump Stage Countercurrent Washing

A jump stage countercurrent washing system was estimated for  reducing
the  effluent  flow from the bleach plant (Figure 86).  The basic mill
bleaching sequence used for  the  kraft  and  soda  subcategories  was
CEDED.    The  filtrate from the second chlorine dioxide washer is used
on the showers for the first chlorine dioxide washer and the  filtrate
from  the first chlorine dioxide washer is used on the showers for the
chlorine washer.  The filtrate from the second caustic washer is  used
on the first caustic washer.  The overflow from the filtrate tanks are
tied-in  the  same  way,  with only the first caustic and chlorination
seal boxes overflowing to the sewer.

A displacement ratio of 1.2 to 1  is  used  on  all  washers  and  the
consistency  of  the vat leaving the washers at 12%.  The inlet washer
vat consistency is IX.  Filtrate from  chlorine  washer  is  used  for
dilution after the brown stock decker.

10.  Evaporator Surface Condenser

In this installation, the existing barometric seal tank is reused as a
surface condenser seal tank.  The barometric air ejectors are retained
as standby and for start-up of the system (Figure 87).

The  new  surface  condenser  and two-stage steam air ejector set with
intercondenser are mounted on a steel structure, outdoors, adjacent to
the evaporator building.  The level at which the ejectors are  located
is enclosed and roofed over for weather protection.

A  new  cooling  water  pump  will pump mill process water through the
condenser and return it to the process water  main.   In  summer,  the
cooling  water may become too hot to return to process.  The system is
on temperature control to keep  the  process  water  main  temperature
within bounds by sewering all or part of the cooling water.  Piping is
provided  to  return  the  sewered  water  to  a mill clean warm water
outfall.  A new condensate pump is used to pump  condensate  from  the
seal tank to the mill sewer.

11.  Steam Stripping Condensates and Reuse

The  system  estimated   (Figure  88) is designed to treat the digester
contaminated  condensates  and  half  of  the  evaporators'   combined
condensate from the concentrated liquor end.  The stripping column for
a  400 TPD mill was estimated to be 5 foot diameter with 10 plates.  A
product cooler or condensate supply heater is included.  The  stripped
gases  are  incinerated in the lime kiln, and the steam supply line is
                               517

-------
     ce _i
     o o_
     o
     CC 3C
     LU O
     i— 
                              uTY C-

•"•s







V
\
y








^*
i-pj —



ui -^

1














                          %
-*>
•*



\
y


•

-_ —

*


=-uJ
-N
\
)




—X










\
0*


•H>,
o s



X,












*Jf
8
'






" .






                                               518

-------
Figure  87
SURFACE CONDENSER
                        TO EXISTING
                        BAROMETRIC
                        CONDENSER
                        EJECTORS
                                      SEAL TANK
      519

-------
                            Figure  88

                           STEAM STRIPPING  AND  REUSE
                                OF  BLOW  STEAM  AND
                             EVAPORATORS  CONDENSATE
                                                                   CONDENSER
, DIGESTER BLOW
^OOMDEMSATE
  EVAPORATOR
' CONDENSATE
          CONTAMINATED
           CONDENSATE
            STORAGE
             TANK

-------
sized  for  an  average  of  10%  steam  requirement..   The   stripped
condensate  is  pumped  to  storage.   Use  of  the  condensate is not
included as part of this estimate.

12.  Evaporators Boil Out Tank

During evaporator boil out in the  basic  kraft  and  soda  mills  the
liquor  was  returned  to the weak black liquor storage tank until the
concentration got down to about 8% or l°Be, with the remaining  liquor
discharged to the sewer.  This system was designed to collect the weak
black  liquor  from  about  10%  down  to  approximately  2%, with the
remainder below 2/6 going  to  sewer.   During  normal  operation,  the
liquor  is  slowly  metered back to the weak black liquor ahead of the
evaporators (Figure 89) .

13.  Black Liquor Storage Tank Spill Collection

This system (Figure 90) is to run all of the black liquor storage tank
overflows to the evaporator bailout tank included in another estimate.
The piping is arranged so that the weak liquor  in  the  boilout  tank
would overflow to the sewer first.

14.  Green Liquor Dregs Filtering

The  basic  mill  takes  the  dregs  from  the green liquor clarifier,
dilutes the dregs in a dregs mixer and reconcentrates the dregs in the
dregs washer.  The dregs from the washer are severed  and  the  dilute
liquor  sent to weak wash storage.  This system (Figure 91) includes a
vacuum dregs filter, with vacuum pump.  The solids are collected in  a
container for disposal by land fill.  The diluted green liquor goes to
weak wash storage.

15.  Causticizing Area Spill Collection System

The  causticizing  area liquor spill collection system includes a tank
sized to hold the liquor from any clarifier or  storage  tank  in  the
causticizing area (Figure 92).  A transfer pump is used to pump to and
from  green  liquor  storage, white liquor storage, weak wash storage,
green liquor clarifier, white liquor clarifier,  and  mud  washer,  as
shown on the flow diagram.

16.  Evaporator Condensate for Causticizing Makeup

Evaporator  condensate  from the second, third, and fourth effects are
pumped to a holding tank for use in the causticizing and lime recovery
area.  Evaporator condensate is used at the kiln  scrubber,  lime  mud
dilution  from  storage,  mud filter shower, dregs filter showers, and
mud washer dilution.  A conductivity probe is used  to  detect  liquor
carry  over  so  that black liquor is kept out of the causticizing and
lime recovery system.  The holding tank uses fresh water for low level
control (Figure 93) .

17.  Lime Mud Storage Pond
                               521

-------
                           Figure  89

                            EVAPORATORS  BOIL  OUT  TANK


                                                     LEGEND
                                               NEW

                                               EXISTING
t
                     r
              WEAK BLACK
             LIQUOR STORAGE
                 TANK
                           J
                     I    I
                               -IXJ-
1     EVAPORATORS      ,
I        NO!


                                                                           -txi-
                                                   BOIL OUT
                                                   STORAGE
                                                    TANK
                                 -txl	
                                                T
                                                       TO STRONG BLACK
                                                       LIQUORJSTORAGE
                                                       r
                                                       1     EVAPORATORS
                                                       I         NO 2
                                                                           i
                                       522

-------
                        Figurs 90

                        BLACK  LTQUOR STORAGE TANK
                        SPILL  COLLECTION AND REUSE
r
     WEAK BLACK
     LIQUOR TANK
OVERFLOW
              WEAK BLACK
             LIQUOR TANK
OVERFLOW
          STRONG BLACK
           LIQUOR TANK
                                                                         _J
                                  II
                                      EVAP
                                     BO I LOUT
                                      TANK
                                                                LEGEND
                                                                     NEW

                                                                     EXISTING
                           523

-------
    cc.
    CO
    LlJ
    cr
o>
    LU

    UJ
    DC
                  I  S
            SOff^
            lljl
         UJ  XI
         OC  —|
         o  xl— -
                       •~»
           r
                     s  /
                     n:-1  f~ J
                                  S
                                  2
                                  "i
                                  Pi
	 =
oe
2
"• ~ 	 ' F OT
xj 	

	 Ik
                                    524

-------
                               Figure 92
                CAUSTICIZING  AREA  SPILL  COLLECTION  SYSTEM
                                                             -IX-
  GREEN
 LIQUOR
 STORAGE
          HXh
  WHITE
 LIQUOR
CLARIFlER
u
           GREEN
           LIQUOR
          CLARIFlER
 WHITE
.LIQUOR
STORAGE
                 '           '
                 i ____ r
                     DRE6S
                     WASHER
                                              -txj-
J
                                                MUD
                      CAUSTICIZING
                        SAVE-ALL
                         TANK
 WEAK
LIQUOR
STORAGE
                                                            n	i
                                                             LEGEND

                                                            	  EXISTING

                                                            	  NEW
                                525

-------
                       Figure 93


      EVAPORATOR CONDENSATE USED FOR  CAUSTICIZING  MAKE-UP

12
3
25
        1A
          )
r
   IB
                     II
                           III
i  j
     i  \ /  '  \ /
 a.vj"
         v  i  V
             L
            CONDENSATE
             STORAGE
                      -tX—(-»
                         526
                      IV
                                          i  i
                                             VI
   !       -      '   •   |   '
(h \  h   h i  h i  h
       "TMViv.
                         ICC
                                            n
                                                HOT
                                             I   WELL
                                                     TO LIME HUD
                                                     STORAGE PUMP
                                                     TO VENTURI
                                                     SCRUBBER
                                                     TO HUD
                                                     FILTER
                                                     TO DREGS
                                                     WASHER
                                                     TO HUD
                                                     WASHER
                                                      TO SLAKER
                                                      CLASS! Fl ER
                                                LEGEND
                                                	 EXISTING
                                                	 NEW

-------
A concrete lime mud holding tank is located 800  feet  from  the  lime
kiln.   The  tank  is  55«xl30«xlO« high for a bleached kraft pump
mill producing 670 TPD.  With a 12• free board, the tank holds 480,000
gallons (Figure 94) .

The lime mud pond provides storage when the kiln is down and the  mill
continues  to  run  on  purchased  lime.   The mud is reclaimed with a
floating "Mud-Cat".

18.  Alarms for Chemical Tanks

High level alarms are installed  on  all  pulp  mill  and  paper  mill
chemical  tanks  so  that the operator is alerted as soon as a tank is
ready to overflow to the sewer, so that the duration of the  spill  is
kept  as short as possible.  The small bleached kraft soda and sulfite
mills required 20 alarms and each paper machine required three.

19.  Prehvdrolysate Disposal by Burning

Each  system  is  unique   and   includes   proprietary   information.
Therefore, the system used to arrive at the cost estimates will not be
described.

20.  Magnesium Bisulfite Liquor Recovery System

The  magnesium bisulfite liquor recovery estimate includes brown stock
drum washing, evaporators, incineration  with  chemical  recovery  and
liquor  reconstitution,  to include make-up sulfur and magnesium oxide
systems.

21.  Paper Machine Vacuum Saveall

To properly cover all of the segments with  some  accuracy,  estimates
were  prepared  for  the installation of vacuum disc filters on tissue
machines, newsprint machines, and board machines (Figures 95-97).   To
establish  an  exponential factor to vary the cost from small to large
machines, two tissue machine saveall estimates were prepared.  Some of
the smaller machines may install  deckers  since  the  cost  would  be
considerably  less  and  there  may  not be room for a vacuum saveall;
however, all of the estimates are based on disc filters.  It was  also
estimated  that  the  smallest installation would cost in the range of
$150,000.

22.  Paper Machine Flotation Saveall

Most of the savealls being installed today are  vacuum  disc  filters.
It  was  noted  that  more  than  half  of  the savealls on fine paper
machines in the mill surveyed were flotation  savealls.   At  least  a
partial  reuse of white water is practiced on most fine paper machines
without savealls because of the  relatively  expensive  additives  and
fillers  used  in  the manufacture of many grades of fine papers.  The
cost of  addition  flotation  savealls  to  fine  paper  machines  was
estimated on this basis  (Figure 98).

23.  Paper Machine High Pressure Showers
                             527

-------
    19
    d

    o
    i—
    «/>

    a
fa  ±
                                                528

-------
in   ^

°*   *
tt»   Ul
C   ^
3   ^

     2
        er
        Ul LU
        > I—
        <=t el
O ct          J
ex             3
                                              529

-------
530

-------
0 el
et oo
Q- O
^ ^
Q. >
                                       531

-------
00
en
    t—

    O
    Q.

    el

    Q.
                                                    I      I  S5o<

                                                      % >K  \ \ -/7
                                 532

-------
The  fresh water used for headbox shower, fourdrinier section cleaning
and sheet knock off, and in the press  section  can  be  significantly
reduced  by  the  installation  of  high  pressure  showers.  The high
pressure showers used on the fourdrinier are designed  to  operate  at
300 psi and the showers on the felts at 500 psi.  Each system includes
a stand-by high pressure pump (Figure 99).

24.  Paper Machine White Water Showers

When the paper machine white water does not contain many additives and
fillers,  self  cleaning  white  water  showers  can be installed.  On
tissue machines, the higher shower water volume will help to  work  in
new  felts  in a much shorter time, resulting in increased production.
The system includes a single white water supply pump, with fresh water
back-up on supply header low pressure control (Figure 100).

25.  Cylinder Former White Wash Shower

Where a pulp dryer has a cylinder former in  place  of  a  fourdrinier
section,  the fresh water showers are replaced by filtered white water
showers.

26.  Cooling Kater Segregation and Reuse

The indirect  cooling  water  collected  includes  evaporator  surface
condenser,  air  compressor cooling, compressed air aftercooler, dryer
drainage condensate cooling and blow through steam condenser, lube oil
cooler, rewinder brake cooling, and stream chiller  condensing  water.
The  warm  water  is collected in a central tank, but is not reused in
this estimate.  The water could be used for high pressure showers,  in
the  pulp mill, for pulper dilution, etc,  Separate cost estimates for
collecting the cooling water from bleached pulping operations and from
non-integrated mills are included.
                               533

-------
                                       SM3KOHS 9MIHV310 J.13J 01
    OC.
    d
    3
    OO
       Q.
       OC.
       o
                        	I
    ui
    £°   N
n)  n  ^
    °- «o   2
                     KXI-
*H  CD
PM  _
                               —CXJ-
                                                       a: •<
                                                       ui I-
                                                       *s
                                                       Is
                                                       £_i
                                                       P2
                                                                                                    -CXJ-
                                                534

-------
                             Figure  100

                  PAPER  MACHINE  WHITE WATER  SHOWERS
TOP FELT SHOWERS
                                                             LEGEND

                                                             	 NEW

                                                             	 EXISTING
                                         FOURORINIER
                                          SHOWERS
                                                                  CLARIFlED
                                                                    WHITE
                                                                    WATER
                                                                    CHEST
                                B35

-------
27.  Felt Hair Removal.

There are certain operations that cannot  tolerate  the  recycling  of
felt  hairs to the stock furnish, such as on fine papers to be coated.
This estimate includes the additional pump  head  required  above  the
system  included  for  vacuum  pump  seal  water  reuse,  along with a
sidehill strainer for removal of felt hairs so that  the  clean  water
can be recycled (Figure 101).

28.  Vacuum Pumps Seal Water Reuse

Two estimates are included for reuse of vacuum pump seal water (Figure
102).   For  large integrated mills, the vacuum pumps are mounted side
by side on an elevated foundation with a covered trench.   The  system
includes  cascading  from  the  high  vacuum pumps to the lower vacuum
pumps, and then transfer to white water storage.  For the  small  non-
integrated  mill,  the  vacuum pumps are located all over the basement
and individual sumps and pumps are included for each vacuum pump.  The
seal water is pumped to white water storage.

29.  Paper Mill Stock Spill Collection System

The paper mill stock spill collection system  picks  up  stock  spills
from  the  floor  drains  (Figure  103),  which  is  not possible when
producing quality paper.  The stock is thickened for storage on static
screens, which also separates some of  the  sand  from  the  reclaimed
pulp.   The  overflow  from  the  stock  chests  are  run to the spill
collection chest.  To bleach colors out of the  stock   such  as  stock
dumps  for  grade  changes,  a  hypochlorite  solution  line  from the
chemical preparation area is included.


EXTERNAL EFFLUENT TREATMENT

The following is a brief description of the external treatment systems
used to prepare external construction costs, operation  and maintenance
costs, chemical costs, and  power  requirements.   It   should  be  re-
membered  that the costs presented in this section are  for model mills
within each of the subcategories, and costs for real  mills  may  vary
depending  upon  the  differences  between the model mill and the real
mill.  Some of the possible variations include differences in climate,
topography, soils conditions,  unit  locations,  and  the  design  and
operation of the particular waste treatment facilitiy.

Raw  and  final  waste characteristics associated with  each technology
level have been developed for each of the 17 subcategories.  The  data
presented  in this section represents approximate annual averages, and
may not be relatable in every case to the  limitations  and  standards
shown  in  other sections because of the different methodologies used.
Any differences that do exist however are generally  insignificant  in
determining the overall cost of achieving the effluent  limitations and
standards.  In order to determine the iir.pact of the limitations on the
profitability  of  a  mill's  operation,  "treatment trains" have been
developed for each technology level.
                              536

-------
                          Figure 101

             FELT HAIR  REMOVAL  FROM  PRESS
              SECTION  VAC  PUMP  SEAL WATER
    2nd PRESS
FROM
VACUUM PUMP
FROM 1st PRESS
VACUUM PUMP
                                      SIDE HILL
                                         SAVEALL
                                             VACUUM
                                            PUMP SEAL
                                           WATER CHEST
                                                         LEGEND

                                                        	 NEW

                                                        .  	 EXISTING
                    537

-------
CM
O
         oo
      00  =

      a.  LU

      S:  a:
      => 3
      (_>

      OC —I
      => et
         LU
         in
                 v> &
                 CO
                                • 2"
                                •to
                   via.
                   £*|
                   °-i
                   gl
                  .-*^
                                                                 O C/J
                                                                 => co
oaci
  a. I

iJ
--Lfc
                                                                                   t;

-------
                                 Figure 103

                PAPER  MILL STOCK  SPILL COLLECTION  SYSTEM
„ TO BLEND
   CHEST
              •ex-
                            ?z
                                                    STOCK
                                                  COLLECTIOH
                                                    CHEST
                                              FLOOR DRAINS


y
HJ

i
	 (KT)
FLOOR DRAIHS
m FROM STOCK CHESTS

_ HYPO
                                  539

-------
Cost curves have been developed for each treatment technology outlined
in this report.  The cost curves and resultant unit costs are based on
"model"  effluent  treatment  facilities  sized   for   several   flow
capacities.   These "model" effluent treatment facilities are based on
assumed unit processes, yard piping layouts, methods and materials  of
construction, site and soils characteristics, unit construction costs,
and operational practices.  Detailed design for each unit, process and
mechanical  layout,  is  beyond the scope and time limitations of this
report.

The construction costs presented are  those  defined  as  the  capital
expenditures  required  to implement the control technology.  Included
in these costs are the traditional  expenditures  for  such  items  as
mechanical and electrical equipment, instrumentation, yard and process
piping,  earthwork,  unit  construction, site preparation and grading,
equipment installation and testing, and engineering.   Items  such  as
electrical,  instrumentation,  process  piping,  site preparation, and
engineering are included as a percentage of the  base  capital  costs,
which  varies  for  each  applicable control technology.  A 15 percent
contingency is also included with each  control  technology  to  cover
miscellaneous work items not included in the estimates.

The  annual  operating costs presented in this report for the external
effluent treatment facilties are subdivided into three categories,  as
follows:

    1.   Total Operating Costs
    2.   Depreciation and Interest
    3.   Operation and Maintenance

Depreciation  costs  reflect the accounting charges for replacement of
the capital assets over a period of years,  straight line depreciation
has been assumed in all annual cost  calculations.   Interest  is  the
financial  charges  on  the  capital  expenditures  for  the pollution
control facilities.  For purposes of this  report,  depreciation  plus
interest  are  assumed  to  be  15  percent  of  the  initial  capital
expenditure.

The operation and maintenance  costs  are  those  costs  expended  for
annual  operation  of  the  external  waste treatment facility.  These
costs are subdivided as follows:

    1.   Operator Labor
    2.   Maintenance Labor
    3.   Energy Requirements
    4.   Chemicals

Operator labor costs are based on  the  annual  manhours  required  to
perform  the  tasks  for  proper  operation,  administration,  quality
control, monitoring, etc., for the "model"  treatment  facility.   The
maintenance  costs  are  the annual manhours required for preventative
maintenance tasks such as  lubrication,  equipment  inspection,  minor
parts replacement, painting, etc.  It was assumed that major equipment
repair and/or replacement and miscellaneous yard work would be done by
the existing mill personnel.
                                 540

-------
Chemical  usage  is  based  on  estimated  quantities required to meet
effluent limitations, or as  required  for  proper  operation  of  the
particular treatment technology.  The energy requirements are based on
the  additional  horsepower  and  operating  times attributable to the
effluent control technology.

The total annual operating costs presented in this report are the  sum
of  the  annual  costs  for  operator labor, maintenance ^labor, energy
requirements, and chemicals.

Ambient temperatures can have a significant impact on the  performance
of  biological  treatment  facilities.   In  cold  climates an aerated
stabilization basin with long detention times will  tend  to  approach
ambient  temperatures  which  can  create  operational  and  treatment
problems.  These problems can include freezing of basin surfaces,  ice
formation  on  equipment  and structures, and a reduction in treatment
efficiencies.  These problems can be alleviated through use  of  short
term detention systems such as activated sludge.

An  activated  sludge system is not affected to the same degree during
cold weather operations as  an  ASB  system.   It  may  be  necessary,
therefore,  for  certain  northern  mills  to  consider  the use of an
activated  sludge  system  if  they  are  to  achieve   the   effluent
limitations.   Based on the above comments, this report presents costs
for both activated sludge and aerated stabilization systems  to  allow
cost   comparisons   of   each   system.   In  addition  to  increased
efficiencies during cold weather, it is anticipated  that  many  mills
may  desire  installation  of  an  activated  sludge system because of
limited land availability for construction of an aerated stabilization
basin.

Preliminary Treatment

Many foreign objects enter mill  sewers,  either  through  mill  floor
drains  or  process  sewers.  These objects, such as wood chips, bark,
wet strength paper, etc., could interfere with the treatment processes
or increase wear  on  the  process  equipment.   Consequently,  it  is
necessary  that these objects be removed from the mill sewers prior to
treatment.  A mechanically cleaned bar screen  is  generally  used  by
most  pulp and paper mills for preliminary treatment.  The high solids
mill sewers flow into  this  facility,  with  the  low  solids  sewers
bypassing  it.   The  bar screen used for purposes of this report is a
mechanically operated, self-cleaning travelling bar screen with a  bar
spacing  of  1-2  inches.   A bypass channel and manual bar screen are
incorporated into the facility to allow for screening  during  periods
of  maintenance  on  the  mechanical bar screen.  A "dumpster" unit is
used for containment of the removed solids.

It is advantageous to monitor and sample the  flow  to  the  treatment
process.   Therefore,  the preliminary treatment facility includes the
necessary flumes and monitoring and sampling  equipment  for  complete
flow  measurement  and  sampling.   The capital costs prepared for the
preliminary treatment  facility  include  the  necessary  excavations,
backfill,  concrete,  mechanical  equipment, flow monitoring equipment
 (with necessary ancillary equipment), and the superstructure.
                               541

-------
Mill Effluent Pumping

Normally, the topography of the effluent treatment site  is  not  con-
ducive  to  gravity flow through the entire treatment process.  Conse-
quently, it is necessary to construct  an  effluent  pumping  facility
which  is  capable  of pumping the maximum daily flow of the treatment
facility.  The pumping facility used for this  report  assumed  a  wet
well  and  dry  well.  The mill effluent flows into the wet well (with
detention time of five minutes  at  maximum  daily  flow),  while  the
variable  speed  pumps  are  located in a dry well adjacent to the wet
well.  The construction costs prepared for the mill  effluent  pumping
facility include excavation, backfill, concrete, pumps, variable speed
controls, ancillary piping and equipment, and superstructure.

Primary Clarification

For  purposes  of this report, it has been assumed that internal fiber
recovery  is  being   accomplished   to   the   degree   of   economic
justification.   Therefore,  external fiber recovery for reuse has not
been considered in the treatment  process  design.   All  mill  sewers
containing   suspended   solids   are   combined   prior   to  primary
clarification, with total removal  being  accomplished  by  mechanical
clarification.   For  purposes  of  determining  the  amount of sludge
produced, reductions by primary clarification of 75 to 85  percent  of
total  suspended  solids  were  used.  The clarifier selected for this
report is a heavy-duty thickener type with rotary sludge scraper,  and
scum  removal  facilities.   The  size  of these units are based on an
average design overflow rate of  600  gpd/ft  2.   The  rotary  sludge
scraper  mechanism  is sized for a torque rating of 15(D)2.  For flows
in excess of five  (5) mgd, two parallel  units,  each  capable  of  50
percent  of the daily flow, were assumed to be used.  Waste solids are
withdrawn by pumping from the  primary  clarifier  at  an  anticipated
solids  content  of  3-4  percent  to  either  a  sludge  lagoon  or a
mechanical  dewatering  device.   Scum  collected  in  the   clarifier
discharges into a storage tank where it is then pumped for dewatering.
The   capital   costs   prepared  for  primary  clarification  include
excavation, backfill, concrete, mechanical, electrical, and instrumen-
tation equipment, scum facilities, waste sludge pumps, and yard piping
related to unit construction.

Sludge Lagoon

Waste solids pumped from the mechanical clarifier can  be dewatered  in
a  lagoon.  In a sludge lagoon the waste solids are allowed to settle,
the decanted water recycled back to the waste  treatment  system.   In
addition,  a  sludge  lagoon may serve as an emergency solids disposal
area when  the  mechanical  dewatering  facilities  are  down  due  to
mechanical  malfunction.   The  lagoon  costed in this report provides
sufficient capacity for five years' detention of  20   percent  solids.
The  capital  cost includes the required earthwork to  construct such a
facility.

Aeration
                               542

-------
BOD5 reduction in pulp and paper wastes is generally  accomplished  by
biological treatment.  Oxygen reguired for biological treatment may be
supplied  either  by  mechanical  surface  aerators  or a diffused air
system.  The costs presented in this report are based on  the  use  of
mechanical  surface  aerators.   The  aeration  equipment  is sized to
provide sufficient oxygen for BOD5  reduction  and  to  ensure  proper
mixing.   Depending  on  the  particular  biological treatment process
selected, oxygenation requirements will differ.

One of the most used biological treatment processes by  the  pulp  and
paper  industry  is  the  Aerated  Stabiliztion Basin (ASB).  Standard
design criteria for  aeration  of  an  ASB  system  suggests  providng
approximately  1.25  Ibs 02/lbs BOD5.  For this report,  it was assumed
that the efficiency of the mechanical aerators under actual  operating
conditions  is approximately 1.75 Ibs 02/hp-hr.  This varies depending
on  type  of  equipment  and  the  characteristics   of   the   system
(temperature,  basin  configuration, biological characteristics, alpha
and beta) .

The activated sludge system with its many process variations  has  had
limited use by the pulp and paper industry.  For cost analysis in this
report,  a  high  rate  activated  sludge system was considered.  This
system requires approximately one pound of oxygen per  pound  of  BODf>
removed.  Mechanical aerator performance for this system is assumed to
be the same as that listed above for an ASB.

Aerated Stablization Basin

Biological  treatment ty aerated stabilzation basins has received wide
acceptance by the pulp  and  paper  industry.   Aerated  Stabilization
Basins  provide a high degree of BOD5 reduction with minimal decreases
in efficiencies due to shock loadings.  In general, however, pulp  and
paper  wastes are deficient in the nutrients (nitrogen and phosphorus)
required  for  optimum  biological  treatment.   Consequently,  it  is
necessary  to  add these nutrients, usually in the form of ammonia and
phosphoric acid, to the biological treatment  system.   The  nutrients
are added in proportion to the organic  (BOD5J loading of the facility.
The ratio used for the cost analysis is 100:5:1, BOD5:N:P.

The  basins chosen for preparation of the cost curves is a single cell
earthen-construction  basin.   In  most  instances  the   basins   are
constructed  in  areas  where the soils are impervious, or can be made
impervious by lining with an impervious soil.  For cost purposes it is
assumed that an impervious soil liner will be  required  to  make  the
basin watertight.  The cost of a synthetic liner is not included.

The  sizing of the aerated stabilization basins were evaluated on both
organic loading rate and detention time design criteria.   The  design
detention  time is 14 days, which assumed 13 days of aeration with one
day of quiescent settling.  The design organic loading is 50f BOD5/Ac-
Ft./ Day.  The basin sizes obtained for the above cited detention time
and organic loading were compared to determine which criteria was  the
governing value.
                             543

-------
The capital costs prepared for the aerated stabilization basin include
excavation, dike construction, impervious soil material, nutrient feed
systems,  yard  piping, stone slope protection and the instrumentation
and electrical costs associated with the basin size.

Activated Sludge Basin

The activated sludge process has numerous modifications  in  detention
times,  organic  loadings,  and oxygenation.  The process selected for
consideration  in  this  report  is  commonly  referred  to   as   the
conventional  activated  sludge process  (6 to 8 hours detention time).
The short detention time and variations in loadings (hydraulically and
organically) make this process susceptible  to  upsets  due  to  shock
loadings.   It  is  recommended that an equalization basin be included
with this system to even  out  hydraulic  and  organic  loads  to  the
system.

As stated previously, pulp and paper wastes are deficient in nutrients
(nitrogen  and  phosphorus).  The nutrients are added in proportion to
the organic (BOD5)  loading to  the  facility.   A  BOD5:N:P  ratio  of
100:5:1 is used for cost analysis in this report.

Final clarifiers are required with the activated sludge basin to allow
separation of the biological mass and treated stream.   A large portion
of  these  solids  are  recycled back to the activated sludge basin to
maintain the biological mass in the aeration basin.   This  biological
mass is necessary to achieve high removal efficiencies.  The high rate
activated  sludge system also generates large quantities of biological
solids which are not oxidized as in ASB  systems.   It  is  necessary,
therefore,  to  continuously  remove  excess biological solids.  These
excess solids (waste activated sludge)  can  be  extremely  gelatinous
with  a  solids  concentration  of approximately 0.5-1.0 percent.  The
methods for disposal of these excess solids are presented  in  a  sub-
sequent section of this report.

Since  the  activated sludge process has high horsepower requirements,
an earthen basin would be susceptible to erosion.   Consequently,  the
costs  prepared for the activated sludge basin are based on a two-cell
concrete tank.  The cells would be operated  in  parallel  to  provide
operational flexibility.  The clarifiers associated with the activated
sludge process are described in a subsequent process item.

As  in  the ASB system, sizing of the activated sludge system is based
on both detention time and organic loading.   The  detention  time  is
eight  hours  (excluding recycle) while the organic loading rate is 50
Ibs BODJ5/1000 Cu.Ft. of aeration  volume.   The  governing  value  was
selected for cost analysis in this report.

The  capital costs prepared for the activated sludge basins (presented
as a  function  of  the  basin  capacity)  includes  excavation,  tank
construction, concrete, nutrient feed systems, yard piping, electrical
and instrumentation costs associated with the basin size.

Equalization Basin
                            544

-------
An  equalization  basin is required quite often to minimize upsets due
to fluctuation in pH valuations, and hydraulic and organic variations.
This is particularly  true  of  the  activated  sludge  process.   The
equalization  basin  utlized  for  cost  analysis  provides  a 12-hour
detention time for equalization of process upsets and hydraulic peaks.
The basin utlized is  a  concrete  tank  with  control  facilities  to
equalize  the  flow.   The  capital  costs  include  excavation, tanks
construction, concrete, backfill, and yard piping.

Vacuum Filtration

Various unit process are used by  the  pulp  and  paper  industry  for
sludge  dewatering   (both  primary and secondary solids).   The method
which has gained the widest  acceptance  in  the  industry  is  vacuum
filtration.   A vacuum filter consists of a rotary drum covered with a
wire mesh on coil springs which is partially submerged  in  the  waste
solids.   The  rotary  drum  is  divided into a series of compartments
which are placed under a vacuum when submerged in  the  waste  solids.
The  drum  rotates   so  that when a compartment reaches the top of the
circle the vacuum is released.  A filter  cake  is  built  up  on  the
filter  media,  and  as  it  descends in rotation, this filter cake is
removed from the filter media prior to  re-submergence  in  the  waste
solids.

The  efficiency  of vacuum filtration operation is greatly affected by
the consistency and  properties of the waste  solids  being  dewatered.
The  dewatering  operation  is  more efficient and economical when the
waste sludge solids to the filter are in a range of 3  to  5  percent.
Consequently,  often times it is advantageous to pre-thicken the waste
sludge solids prior  to vacuum filtration.  This is  particularly  true
when dewatering waste solids from a biological system.

The  waste  sludge  (primary, excess biological solids, and solids from
an ASB clari-flocculator) obtained  from  each  treatment  process  is
unique.   The  sludge  obtained  from  each  process requires detailed
analyzation prior to actual design of dewatering facilties.

Waste sludge obtained from primary clarification usually has a  solids
content  of  3  to   5 percent.  These sludges normally contain fibrous
material and wood particles which enhance its filterability.  A filter
rate of 6f Dry Solids/Sq.Ft. Filter Area/Hour  is  normally  used  for
dewatering  of  primary  waste  solids.   This filter loading rate for
primary solids can oftentimes be  achieved  without  the  addition  of
chemicals;  however,  oftentimes,  chemicals  are required to obtain a
filter cake of 20 to 30 percent solids.

As described previously, the waste biological solids obtained from  an
activated  sludge  system  can  be extremely gelatinous.  This type of
sludge is quite difficult to dewater because of  its  consistency  and
requires  thickening  prior to vacuum filtration.  Once thickened, the
waste biological solids can be combined with primary waste solids  for
vacuum   filtration.   When  thickened  waste  biological  solids  are
combined with primary  solids,  filter  rates  of  4#/Sq.Ft./Hour  are
normally  obtained   with  the  addition of chemicals to aid the vacuum
filtration process.


                            545

-------
Solids removal by clarification following  an  ASB  is  not  a  common
practice  in  the pulp and paper industry.  However, as solids removal
becomes more important, industry will require  such  facilities.   The
solids  in the effluent of an ASB are difficult to settle and dewater.
Consequently, it is anticipated that a flocculant (such as alum)  must
be  added  at  dosaqe  rates  of  100  to  300 mg/1 in order to obtain
efficient solids removal.  Once  withdrawn  from  the  clarifier,  the
combined  biological  and  chemical  solids must be thickened prior to
vacuum filtration.  The thickened solids should then be combined  with
primary  sludge  for  efficient vacuum filtration.  By combining these
solids in the above manner a filter rate of 3 Ibs/Sq.Ft./Hour was used
for design.  In addition, chemical conditioning will  be  required  to
efficiently dewater these solids by vacuum filtration.

In   design  of  vacuum  filtration  facilities,  there  are  numerous
variables in design that must be considered, as outlined  above.   The
hours  per  week  which the vacuum filters are operating depend on the
amount of solids dewatered each day and the filter loading rate.

The capital costs prepared  for  vacuum  filtration  of  waste  solids
include:   solids  storage  tank  and  pumping,  building,  mechanical
equipment  and  appropriate  ancillary  equipment,   process   piping,
electrical,  instrumentation,  and  a standby vacuum filter unit.  The
operation and maintenance costs include disposal of the  solids  to  a
landfill site.

Sludge Press

Many  times it is advantageous to provide additional solids dewatering
after vacuum filtration prior to ultimate  disposal,  particularly  if
the solids are to be turned.  This is normally achieved by use of a V-
Press.   A  V-Press will normally raise the solids concentration to 35
to UO percent solids.  A  screw  conveyor  feeds  solids  into  a  gap
between  two  revolving  press  wheels.  These wheels carry the solids
around till a so-called "pinch point" is reached.  At this  point  the
maximum  pressure  is  exerted  on the solids.  The pressed solids are
then released as the wheels gradually diverge.  A screw conveyor  then
discharges  the  solids into a receiving container.  The filtrate from
the pressing operation is then recycled back to the treatment   system.
The  capital  costs  for  pressing  of  waste  solids following vacuum
filtration  include  mechanical  equipment  and  ancillary  equipment,
electrical and instrumentation, and building.

Flotation Thickening

As  cited  previously,  waste  biological  and/or  biological-chemical
solids from the secondary  clarification  process  require  thickening
before  they  can  be  efficiently dewatered.  If these solids  are not
thickened prior to vacuum  filtration,  the  capacity  of  the  vacuum
filter  is  greatly  reduced.   Air  flotation  was  selected   as  the
thickening process for this study.  Air flotation requires addition of
a flocculant such as a polymer to assist in  the  thickening  process.
The  polymer  is  added to the waste solids prior to introduction into
the flotation unit.
                            546

-------
Air flotation requires the diffusion of air  into  the  waste  solids.
This  may  be  accomplished  by  a  so-called "pressurization system."
Basically, three types of pressurization systems are  available-total,
partial,  and  recycle  pressurization.   In  a  total  pressurization
system, the  entire  waste  solids  stream  is  pressured  in  an  air
saturation  tank.   The  partial  pressurization  system  withdraws  a
portion of the influent  waste  solids  flow  to  be  pressurized  and
saturated  with air.  This pressurized flow is then discharged back to
the influent line.   In  recycle  pressurization,  a  portion  of  the
effluent from the flotation unit is pressurized and saturated with air
and recycled back to the influent.

The  pressurized influent enters the flotation unit where the diffused
air bubbles are allowed to surface.   Diffusion  of  the  air  bubbles
promotes coagulation and ultimate thickening of the waste solids.  The
coagulated  solids  (thickened  sludge)  are  then  removed for vacuum
filtration.  It is anticipated that air flotation  will  increase  the
secondary  waste  solids  to  3 to 4 percent solids.  The filtrate and
scum from the air flotation is recycled back to the treatment process.
As in vacuum filtration, there are numerous process variables that can
be evaluated in sizing air flotation units.  For  this  study  it  was
assumed  that  the  hours  of  operation  of  the flotation thickening
equipment would vary depending on the solids loading.   The  following
hours of application were assumed:

         Secondary Solids - f/Day           Hours/Week

                 0-5,000                        42
             5,000-20,000                       2H
            20,000-60,000                       126


An air flotation loading rate of 2# Dry Solids/Sq.Ft./Hour was used in
design  of  these  facilities.   The  capital  costs for air flotation
thickening of waste biological and biological-chemical solids  include
building   process   equipment,   chemical  feed  system,  electrical,
instrumentation, and ancillary equipment.

Secondary Clarification

Secondary clarification is required with an activiated  sludge  system
to  provide  separation of the biological mass and treated stream.  In
addition, they are often required after an ASB system for supplemental
solids removal.  The clarifier most  effective  for  secondary  solids
separation  is  the  contact  type.   The  effluent from the activated
sludge basin or ASB system flows into a flocculation  chamber  in  the
clarifier.   In  this chamber flocculants such as alum and polymer are
added to  the  wastewater  stream.   Low  speed  mixers  disperse  the
flocculants  throughout  the chamber allowing for coagulation and floe
formation.  The wastewater stream then flows into the  clarifier  area
for solids separation.

For  flows in excess of five  (5) mgd, two parallel units, each capable
of 50 percent of the daily flow, were assumed to be used.  The  design
                              547

-------
overflow  rate for the clarifiers, excluding flocculation area, is 500
gpd/sq.ft.  The drive mechanism would be rated for a torque of 10(D)2.

In a waste activated sludge system,  most  of  the  biological  solids
settled in the secondary clarifiers are recycled to the aeration basin
to  maintain an active biological mass in the aeration basin.  Pumping
capacity is provided for a maximum recycle rate of 75 percent  of  the
average  daily  flow with an average recycle rate of 40 percent of the
average daily flow.

The capital costs presented for secondary clarification include  exca-
vation,  backfill,  concrete,  recycle  pumps,  mechanical  equipment,
electrical, instrumentation, yard piping, and ancillary equipment  for
proper operation.

Mixed Media Filtration

Mixed  media  filtration  is  presented in this report as a "polishing
process" following  secondary  treatment  for  supplemental  suspended
solids  removal.   The  units  evaluated  are  single-stage,  parallel
pressure filters with provision for operation of two units  in  series
for  two  stage  filtration.  A clear well for storage of the backwash
water is provided for backwash of the captured solids.  A surface wash
is also provided for scouring the media and minimizing  slime  growth.
The  backwash  water with its high solids concentration is pumped to a
storage tank where the solids can  settle,  with  the  decanted  water
being conveyed back into the treatment system.  The settled solids are
transported  to  the solids dewatering equipment.  The design rate for
the filters is 5 gpm/sq.ft.  A standby unit is provided for periods of
breakdown or maintenance on one of the other filters.

The capital costs for mixed media filtration include building, process
equipment, equalization basin,  piping,  electrical,  instrumentation,
and ancillary equipment.

Neutralization

Pulping  processes  significantly change the pH of a wastewater.  Such
variations in pH can affect the waste treatment process; therefore, it
is necessary to add chemicals  (acid and/or caustic) and flash mix  the
wastewater for neutralization.

The  capital  cost  for  pH  adjustment includes excavation, backfill,
concrete, mixer, chemical  feed  system,  etc.   The  flash  mix  tank
provides  one  minute detention time at peak flow with mixing capacity
of 1 Hp/ 1000 gal. capacity of mix tank.

Flow Monitoring Structure

In order to monitor the unit processes and overall efficiency  of  the
treatment   process,  it  requires  installation  of  flow  monitoring
structures throughout the  process.   The  flow  monitoring  structure
considered  in  this  study  includes  a  Parshall flume and automatic
sampling equipment.
                              548

-------
Foam Control

In many installations, foam control is.  very  critical.   Included  in
this  study,  as  required,  is a foam tank with adequate capacity for
storage of foam.  As the foam builds up in the facility, it eventually
settles because of its inability to support its own weight.  The  foam
tank provides for a five-minute hydraulic capacity.

Outfall Sewer

The  outfall  sewer  is  defined as the sewers required to connect the
mill to the treatment facility  and  the  treatment  facility  to  the
diffuser.  Thus, for this cost analysis, one (1)  mile of outfall sewer
is assumed to be required to make these connections.

Diffuser

Discharge  from the outfall sewer is assumed to be through a multiple-
part diffuser which will facilitate mixing of the  treatment  facility
effluent  with the receiving water.  Such induced mixing will minimize
any horizontal and vertical stratification  of  the  effluent  in  the
receiving  waters.  The costs presented in this report assume that the
diffuser is of standard design and that moderate underwater conditions
will be encountered.  Standard design recommends  10  to  15  feet  of
diffuser/mgd;   therefore,  12  feet/mgd  was  used.   This  can  vary
substantially  depending  on  the  desired  and   required   diffusion
characteristics.   The  capital  costs  include  excavation  backfill,
laying and jointing of the diffuser pipe.

Minimum Lime Treatment

Where color removal technology has been required, treatment by minimum
lime has been used in this report.  The first caustic extraction stage
effluent, approximately 20 percent of a mill's effluent, is mixed with
1500 to 3000 ppm of lime.  Approximately 75 percent  of  the  lime  is
recovered  in  a clarifier.  The lime removed in the clarifier is then
pumped to a lime mud mixer where it is combined with  the  kraft  mill
lime from the recausticized filter.  The combined lime is then further
thickened  by  filtration.  The additional lime kiln capacity required
to handle lime from a minimum lime system is approximately 15 percent.
The mud  drying  and  calcining  capacity  is  increased  through  the
addition  of a flash drying system before the kiln.  The capital costs
presented for  minimum  lime  treatment  for  color  removal  includes
additional   filters,  kiln  capacity,  flash  drying  system,  and  a
clarifier for settling of the lime.

RETROFIT COSTS

Capital investment costs for mills that must  upgrade  their  external
wastewater  treatment facilities in order to be in compliance with the
effluent limitations were determined and are presented  below.   These
costs were predicated on the following criteria.

1.  "Retrofit costs" are determined using  only  mills  with  existing
suspended  solids  removal  and biological treatment facilities.  This


                             549

-------
   5
   i
   II
   z *
      \   \
         \\
             \'\
OJ ,	 H- ft. t
 •-
 \
                 \
                             \
                      \
                                  \
                               111 i i  i
       \\
\
\
\
   *§
                              \\
                                    § §
                             550

-------
                                  UULAi
                                           111 11 i i
   \\  \
   \\  \
.   \\
82
•< 0

LjJ <
a. v>
                               \ !
                                          \
      v\
         \
                  \   \
        \
 s
Is
>S
-|
\1
                             \\
              V:
                          g
                          o

                         1VMI31JO
                          551

-------
     I 11 I I  I  I
                      II 11  I I   I
                                       III I I  I  I   I
                                                                          ii n i i  i   i
                                                                                             ii 11  i  i    i
|s
* «
~ o
                                                                          ii 11  i i  i
                                      o o

                                      •< S
                                                      552

-------
I


L


il
u>
*
S

g
                         i 11  i i   i   i
                                                               I I i  i  i    i
      111 11  I  I   I	III  I I  I  I   I
                                          Ml I  I  I  I   I       I II 1 I  I  I   I
                                                                              ill II I I   I   I      IIM I  I  1
                                                          553

-------
                                    i
                                                                                         111  I I I  I   I
    = 82
8=5 53
                                                                       S  8
                                                                              \
                                                        554

-------
51
                                            II I I  I   I   i
                                                             111  I I  I  i    i
      11 I I  I  I  I   I
                                                          555

-------
§-

si
2J
5>


I
  i


  £
                      in i i i  i   r
\
                                                           \l
                                         \
        \
                \
       ill I I I  I   I     III I
\   =
                                                                    §
                   556

-------
       5
       a
       §
                                                                                                     I I I I  I   I    I	 I I I I
  I— tJ  o 3
CJ   00
    CD    *
               I I I I  I   I
                                   li i i  l  i   i   i
                               \
       = 1
                                                     O O
                                                     o o
                                                     o o
                                                                        557

-------
S-
IS
a-
  5
:§8
i
sli
> «. 3
     11111 i  i   i
                   v
                    n 111  i  i  i
 sg
                         \   \ :
                                  Illl I
i

t
s
I
                                                                \
                                                                iri I I  i  I
        \  \
                                                                           1VWUHI
                                              558

-------
  ~ 2 8
  "^ii
  -
r-, .  J- O. 3
     Sg
     5°

     H
           \
                     S
                    1V101
                                                              \
                                                              Illl I  I  I  I     111 I I I  I  1
                                                                                       "3 S
                                              559

-------
     5
     Of.

     3
U   I—
3   UJ
CT.  i£
                                                                                    X
      "1
      =1
                                                            560

-------
        11 I I  I   I    I
                                                      \
=
                            III I I  I  I   I
                                                                           i I  I  I    I
                                                                                            II11 I I  I   I
                                                                                                                    I I I  I   I   I
                                                                                         11
  §




TVN431NI
                                                                  561

-------
                                      III I  I I  1  1
                                                                         I 1 I  1  I   I
                                                                                        i i 1 1 1  1  t   1
"g
    I I I  I I I  I    I
                                          \
fcsV
-------
   £
   §_

   n
-^ 88
    55
    S S
                                   §  §
                                                   1111 I  I I   I
                                   a I
                                                  563

-------
          11111  '  '   '
°= CO  « J
            I I  I I  I  I    I
          I II I I  I  I   I
                               n 111  t  i
                                                                       mi i  i  i   i
                                                                   564

-------
selection criteria is based on evaluation of all  the  pertinent  data
generated by this study which established that BPCTCA for all mills in
each  subcategory  is  primary and biological treatment.  Mills in the
tissue FWP (predominantly a waste paper furnish)   sufccategory  require
primary  and biological treatment but trills using predominantly virgin
pulp are an  exception  in  that  these  mills  reguire  only  primary
treatment  for  BPCTCA.   Therefore the mills in this subcategory that
were selected to determine "retrofit costs" include  mills  with  only
primary treatment facilities.

2.   A  table  listing  all  mills  for  each subcategory was prepared
describing the mill size, production and  reported  treatment  trains.
Using the criteria described above, selection of all the mills in each
subcategory  or  segment  to be used for the determination of retrofit
costs were made.

3.  Retrofit costs are based on  the  difference  between  the  annual
average  BODj> and TSS actually achieved by each selected surveyed mill
and the average of the annual averages achieved by the mills  used  to
establish   the   effluent  limitations  for  the  subcategory.   This
difference represented the additional BOD5 and  TSS  removal  required
for   each  mill.   The  annual  average  wastewater  volume  and  the
additional BOD5 and TSS  removal  required  for  each  mill  was  then
developed.   This information as well as mill size and treatment train
is tabulated by the segment in Table 186,

Using the  procedures  and  selection  criteria  described  above  the
methodology  for  the  determination of "retrofit costs" for each sub-
category or segment was as follows:

                           Grgundwood Mills

The groundwood segment includes the  following  subcategories:  chemi-
mechanical,   thermo-mechanical,  groundwood  making  fine  paper  and
groundwood making coarse, news and molded paper products.  There are a
total of 19 mills that were  surveyed  and  20  mills  that  were  not
surveyed in this segment and only three mills qualified for determina-
tion  of  retrofit  costs.  The remaining mills either discharged to a
municipal system, have no  treatment  facilities,  have  only  primary
treatment   facilities   or   are  in  compliance  with  the  effluent
limitations.  The design criteria on which "retrofit costs" are  based
are  described  in  Table  187.   "Retrofit costs" for the three mills
selected are shown in Table 190.

                            Sulfite Mills

The sulfite  segment  includes  the  sulfite  and  dissolving  sulfite
subcategories.   There  are 11 mills in this segment that were subject
to detailed survey and 17 mills that were not.  There  were  only  two
mills  in  the  entire  segment  that  qualified  for determination of
retrofit costs.  The remaining mills discharged to a municipal  sewer,
have  no  treatment,  have only primary treatment or are in compliance
with the effluent limitations.  The design  criteria  on  which  these
costs  are  based is described in Table 187.  "Retrofit costs" for the
                             565

-------
                      TABLE  186

           SURVEYED MILLS USED TO DETERMINE
                   RETROFIT COSTS
Mill
Code
Tons/
Day
Treatment
Train
Flow
M.G.D.
#/Day To
BOD
Be Removed
TSS
Groundwood
003
002A
004A

051
052

150
152

140
108
120
110A
136
134
104A
116
118
132
103
107A
112
121 A
138
113A
109A
100
501
122A
111 A
102A
I '.Of
N.A.
542
217
71

2.96
101

300
638

320
1000
1160
1132
1650
945
1342
1150
192
417
425
310
640
1351
986
1177
11.19
1027
1385
598
772
1020
C-TF-C
C-A
SB-SB-SB

C-ASB
C-ASB

C-TF
C-ASB
Blec.
SB-ASB
C-ASB
ASB
ASB
ASB
ASB
A
ASB
A
*
ASB
A
ASB
A7B
ASB
ASB
A
ASB
ASB
ASB
ASB
ASB
= In -Compliance
-- NoL Applicable
13.8
4.9
2.1
Sulfite
Ib.b
4.1
Soda
12.0
17.0
jh;-:d Kraft
6.0
55
36,1
27.8
47.4
21.0
70.2
36.1
5,0
8.1
18.4
9.4
16. °
48 '.^
33.0
39.8
43.8
37.1
66.1
17.3
25.0
34.7
566
6,179
586
277

240
537

19,000
i.e.

2,300
6,800
580
906
3,300
8,978
13,554
13,685
1,133
3,294
7,055
i.e.
i.e.
1,080
1,578
2,589
4,923
21,362
21,745
12,080
i.e.
36,108

3,848
1,259
i.e.

503
i.e.

24,000
24,000

1,200
4 , 000
19,952
3,736
83 , 655
37,044
27,511
83,605
N.A.
i.e.
i.e.'
3,689
13,824
O.K.
4,733
N.A.
24,170
i.e.
96,315
15,608
772
8,976

~ 0> Ida Lion Lagoon

-------
  TABLE  186
   (continued)
Mill
Code

210
205A

284
257A


252
303
308A
318
333
337
25 9A
312
313
330
208A
302
329
i.e. =
N.A. =
Tons/
Day

320
100

375
187


49
45
160
125
163
36
194
15
37
20
104
226
74

In Corapl
Not Appl
Treatment
Train

SB-PS
C-ASB

C-ASB-C
C-A


C-PS
FI
C
C
C
C
C-FI
C-ASB-PS
C-PS
C
C
C-PS
C

lance
icable
Flow
M.G.D.
Deink
6.2
1.9
Fine
2.3
1.9
rn 4 ^ _„ _ ,
i, _L_oS u-c;
0.6
2.8
4.4
4.2
5.2
4.5
3.4
0.7
0.2
0.4
1.5
2.8
2.7


#/Day To

BOD

6,003
245

262
430


54
239
560
188
652
508
446
N.A.
644
352
707
226
488


Be Removed

TSS

i.e.
N.A.

i.e.
N.A.


i.e.
N.A.
304
438
N.A.
72
i.e.
590
N.A.
TVj A
* 62 '
N.A.
96


567

-------
two mills shown in Table 190 represents the total costs for the entire
sulfite segment.

                           Soda Subcateqory

The two mills listed in Table 186 for the  soda  subcategory  are  the
mills  that  qualify for development of "retrofit costs" for this sub-
category.  The costs to upgrade the  wastewater  treatment^  facilities
for  these  two  mills, i.e., "retrofit costs" are shown in Table 190.
The design criteria on which these costs are  based  is  described  in
Table 187.

                          Deink Sufccategory

Four  mills  listed  in  Table  186  in this subcategory qualified for
selection to determine retrofit costs.  The remaining  mills  in  this
subcategory  discharged to a municipal system, have no treatment, have
primary treatment  only,  or  are  in  compliance  with  the  effluent
limitations.   The  "retrofit  costs"  developed  for these four mills
therefore represent the costs for the  entire  subcategory  which  are
shown  in  Table  190.   The  design criteria on which these costs are
based is described in Table 187.

                (Non-Integrated) Fine Paper Subcategory

The two mills shown in Table 186 provide  the  basis  for  determining
"retrofit  costs"  for this subcategory.  The other mills in this sub-
category discharged to a municipal system,  have  no  treatment,  have
primary  treatment  only,  or  are  in  compliance  with  the effluent
limitations.  The retrofit costs for this  subcategory  are  shown  in
Table 192 and the design criteria on which they are based are shown in
Table 187.

                         Bleached Kraft Mills

The  bleached  kraft  market pulp, dissolving pulp, fine paper and BCT
subcategories are included in  this  segment.   The  twenty-two  mills
listed  in  Table  186 under the bleached kraft segment are those that
require the determination of "retrofit costs."  In addition  to  these
mills  there  are  ten more that were not surveyed, for which retrofit
costs must be determined.  There is insufficient  data  available  for
these unsurveyed mills to develop adequate design criteria on which to
base  "retrofit  costs."   Therefore  those  costs  developed  for the
surveyed mills which are based on the design criteria shown  in  Table
188  approximate  retrofit  costs for the unsurveyed mills.  The total
retrofit costs  for the entire  bleached  kraft  segment  were  derived
using the procedures described below.

                            Surveyed Mills

Two  of  the  twenty-two  bleached  kraft  mills  listed in Table 186,
required no additional capital costs to achieve compliance.   Improved
operation  and  additional  chemical usage appeared to be the probable
solution for these mills.  The remaining twenty mills require  various
improvements  in existing treatment facilities in order to achieve the
                                568

-------
                                      TABLE _

                          BASIS  I'OH Rr.TKOljL'f COST DFJ'IJRMriATIOM

The following list represents the  additional removal requirements  to  be  achieved by
existing primary and secondary  trcarir.cnt facilities.
560
220

 75
300
100
Tons/
 Day    11GD   ti/V&y    Added  Treatir.enc Required
                                                     TSS
        13,0  6200
         5.0   600

         2.0   300
                                                             Added Treatment Required
        Aerators *• 3 days retention 4QQO     Ch?.nica] feed only
        17.0
         4.0
300
600
Aerators only

Aerator" only

       Sulfice  Sarjugnt

Aerators only
Aerators only


       S qd a__S_e.gpe-
                                     in com-  Non?
                                     pliancs
                                       "      None
 500     none
In cor,-  None
pliancs
600
300
17
12
.0
.0
11000
1^000
Aerators
Aerators
+ 6
+ 8
De i n_k_
850
400
320

200
100
375

200
18
7
6

•5
•j
2
2

2
.0
.0
.0

r\
• *j
.0
.5

.0
300
8200
6000

1000
300
270

450
Aerators
Aerators
Aerators

Acre tcrs
Aerators
TH
r j
Aerators

Aerators
only
+ 4
+ 3

*»»-» 1 ••»
only
tl-VQ C
me £>
only

only
days
days
retention
retention
24000
24000
Chfinical
Chemical
feed
fasd
-f eli
4- Sl:
S^netvt

days
days







retention
retention


i f-
It


3000
2700
In com-
pliance
3000
3000
In com-
pliance
2000
Chsrrical
Chemical
None

Chc~ical
Chemical
None

Chemical
fe-d
feed


feed
feed


feed
only
only







                                        569

-------
additional BOD5 and TSS removals shown.  The design criteria shown  in
Table  188 applies for from one to as many as four mills, all of which
are included in the twenty surveyed mills.  The costs to  provide  the
additional  treatment  indicated  are  shown  in  Table  194 under the
surveyed mills section.  The  retrofit  costs  used  for  the  various
treatment levels required are shown in Table 191.

                           Onsurveyed Mills

    The  ten  mills  that  require additional treatment facilities are
listed in Table 193, showing mill size and wastewater volume for  each
mill.   The average mill size is 1092 kkg/day (1200 T/D) and volume is
113.4 MLD (30 MGD); therefore, the retrofit costs  developed  for  the
surveyed  mills  that  averaged 910 kkg/day (1000 T/D) and 121 MLD (32
MGD)  were used to determine retrofit costs for these unsurveyed mills.
Using Table 188, it can be seen that  there  are  ten  surveyed  mills
requiring  from  two  to  ten  days additional retention time in their
aeration basin.  The ten unsurveyed mills all use aeration basins  and
it  was  assumed  that  the amount of additional treatment known to be
required by the surveyed mills could  reasonably  be  expected  to  be
required  by  the  unsurveyed  mills.   Therefore  the  retrofit costs
developed for the surveyed mills, increased by  a  factor  of  1.2  to
reflect  the larger size of the unsurveyed mills was used to determine
the retrofit cost for these mills.   It  was  also  assumed  that  the
number  of  mills requiring the differing levels of treatment would be
the same for the ten unsurveyed mills as was experienced  by  the  ten
surveyed  mills.  The results of these calculations are shown in Table
194.   The total retrofit costs for the entire segment is also shown in
this table.

                            Tissue Segment

The tissue segment includes the  tissue  made  from  virgin  pulp  and
tissue   (made  from waste paper) subcategories.  BPCTCA for the former
subcategory is primary treatment and for the latter, primary treatment
plus biological treatment.  The thirteen mills listed in Table 186 are
those surveyed mills that require the determination of retrofit costs.
In addition, there are eleven mills that were not surveyed  for  which
retrofit  costs  must  be  determined.   There  is  insufficient  data
available for  these  unsurveyed  mills  to  develop  adequate  design
criteria  on  which  to  base  retrofit costs.  Therefore, those costs
developed for the  surveyed  mills  which  are  based  on  the  design
criteria  shown  in  Table  189  were  used  to  determine approximate
retrofit costs for the unsurveyed mills.  The total retrofit costs for
the entire tissue segment were derived using the procedures  described
below.

                            Surveyed Mills

The  surveyed  mills   listed  under  the  tissue segment in Table 186,
require various improvements in existing treatment facilities in order
to achieve the additional BOD5 and TSS  removals  shown.   The  design
criteria shown in Table 189 were derived by grouping the mills by size
and  whether  they used predominantly virgin pulp or waste paper.  The
first three treatment  levels shown in Table 189 are for ten mills that


                                 570

-------
                                               TABLE _

                                BASIS  FOR RETROFIT  COST DETERMINATION

       The following list represents the.  additional removal  requirements to be achieved by
       existing primary and  secondary  treatment  facilities  in  the bleached kraft segment.
  OF
ills
Tons/
 Day
       1000
        If* r*t *•>
        UUU
MGD
 BOD
///Day
320
1000
1000
1000
1000
1000
6.0
55.0
32.0
32.0
32.0
32.0
2400
6800
1000
3000
8000
13000
32.0  22000
                                        ASB  TREATMENT FACILITIES
Added Treatment Required
 TSS
///Day
                       Aerators only                1200
                       Aerators + 3 days retention  4000
                       Aerators only                7000
                       Aerators + 2 days retention 28000
                       Aerators + 4 days retention 19000
                       Aerators + 6 days retention 50000

                       Aerators -f 8 days retention 13000
                                +10 clays r&muLioii  9000
Added Treatment Required

None
Chemical feed only
Chemical feed only
Chemical feed -I- sludge ham
Chemical feed 4- sludge hanc
Chemical feed + sludge hanc
+ Clarifier for 16 MGD
Chemical feed -f sludge hanc
Chemical reed -r sludgu hanc
                              ALL ACTIVATED .SLUDGE  TREATMENT  FACILITIES
        250
       1230
         7.0
        57.0
       1000
      10000
         Aeration                     JOOO
         Provide Activated Sludge    26000
           plant for 20 MGD
                                     Chemical feed
                                     Chemical feed for 57 MGD
       KOTE:  Added aerators, chemical  feed,  &  sludge  handling  facilities  are to be sised
              for .-cuiids par day of additional  removal required.   Additional  days retention
              are to be made for the MGD's  shown.
                                       571

-------
                                       TABLE  189

                         BASIS FOR RETROFIT COST DETERMINATION

The following list represents the additional removal requirements to be achieved by
existing primary and secondary treatment facilities in the tissue segment.

                        TISSUE FROM 60% PURCHASED PULP OR MORE

AVG.   // OF   AVG.     BOD         TSS
T/D   MILLS   MGD     ///DAY       ///DAY         ADDED TREATMENT REQUIRED

 43     3     2.6      270         270          Chemical feed + full primary system
                                                for 1.3 MGD.  Use clarifiers

160     4     4.3      460         500          Chemical feed + full primary system
                                                for 1.0 MGD.  Uuo clarifiers

135     3     2.3      475          80          Chemical feed + full primary system
                                                for 0.6 MGD.  Uoc clsrificrs

                        TISSUE (fwp-90% WASTE PAPER OR MORE)

 25     3     0.4      500         330          Aerators * 4 days retention for 0.4 MGI
                                                •*• sludg-3 handling facilities.
NOTE:  Added aerators, chemical faed, & sludge handling facilities are to ba sized
       for poimds par day of additional r^r.oval required.  Additional days retention
       ace to be made for the HDD's shown.  Full primary system, includes pur.ping
       and sludge handling facilities for flcjv and pounds per day r,v?ov«I require-
       ments shown.
                                 572

-------
 CO
rH
O
a
to
CO
§
 (3
M
 CO
 O
O
<-0 CU
o
bo a
c 5
•H d o m
*J CU CM
ta 4J CM
M C
0) >rl
ft td
0 2
C
O W
•H CO
4J CU O O
 -u cu & in
•H -H g tj i-<
4-1 T3 4-1 C
O t3 co 3
(H 
-------
                                  M
                                  0
                                  aj
                                  M
                                  (!)
                                                   in
                                                          m
in
cN
co
       o
       oo
       in
                                                                        o
                                                                        oo
                                                                        in
                                                                                       m
                                                                                       -d-
                                                                                       t->
                                   m
                                   r-
                                          CO

                                          04
                                  a
                                  O  4J
                                 •H  CO
                                  4-)  a)
                                  cfl  to
                                 •H  a)
                                  a  4J
                                  
                      m
                      oo
o
rH
oo
              O
              
                w
                V-i
                trt

               r-l
               rH
                O
               O
" H
«
                                                                                                                           CN
                   
*»o
CO
                                                          o     o
                                                          o     o
                                                          o     o
                                                           m
                                                                  
-------
                   ta    a)
                    0)  4J
                         m
                         CM
                                            O
                                            CO
                                                          m
                                                                            in
                                                                            CM
                   •H  CO
                   4-1  a)
                   nj  )-i
                   •rl  0>
                   O  4J
                   01  C
                   H  M
                   a.
                   H


f-^
03

0
•H
4J
•H
rj-4
rf-J

-------
             Table  193
UNSURVEYED MILLS -- REQUIRING RETROFIT
       BLEACHED KRAFT SEGMENT
     Code         f/'D                 MGD

     179          1700                NA
     173          1500                24.0
     149          1500                42.0
     177          1500                35.0
     167          1600                38.0
     180          1300                20.0
     171           920                30.0
     161           725                36.0
     174           720                29.0
     187           640                20.0

        Average   1200                30.0
                   576

-------
                     Table 194
      RETROFIT COSTS FOR THE BLEACHED KRAFT SEGMENT
Surveyed >'jj

 Number
of Mills

    1
    1
    4
    3
    2
    2
    2
    2
    1
    2
                            Cost Per Mil]
                                $,1000

                                   150
                                 2,980
                                   125
                                 3,115
                                 3,930
                                 6,570
                                 5,410
                                 6,250
                                   110
                                 6,885
                                          Total Cost
                                            $1,000

                                               150
                                             2,980
                                               500
                                             9,345
                                             7,860
                                            13,140
                                            10,820
                                             6,250
                                               220
                                            13,770
Unsurvived Mills
       ti

 Number
of Mills

    3
    2
    2
    2
    1
Cost Per Mill
	$1,000

     3,115
     3,930
     6,570
     5,410
     6,250
                                             Size
                                            Factor

                                              1.2
                                              1.2
                                              1.2
                                              1.2
                                              1.2
                             TOTAL COST PER SEGMENT
Total Cost
  $1,000

  11,214
   9,432
  15,768
  12,984
   7,500

 121,933
                        577

-------
                     Table  195
        RETROFIT COSTS FOR THE TISSUE SEGMENT
Surveyed Mills
 Number
of Mills

    3
    4
    3
    3
^ 'erage
  T/D

   43
  160
  135
   25
Unsurveyed Mills
             Average
               T/D

                10
                20
                30
                30
                30
                35
                36
                40
                50
                75
               210
Cost Per Hill
    $1.000

       630
       600
       405
       520
               Cost Per Mill
                   $1 ,J)Op_

                      630
                      630
                      630
                      630
                      630
                      630
                      630
                      630
                      630
                      630
                      600
Factor

   1
   1
   1
   1
                    Factor

                     10/43
                     20/43
                     30/43
                     30/43
                     30/43
                     35/43
                     36/43
                     40/43
                     50/43
                     75/43
                    210/160
                               TOTAL COST PER SEGMENT
Hotel Cost
   $1,000

    1,890
    2,400
    1,215
    1,560
            Total Cost
               $1,000

                  147
                  293
                  440
                  440
                  440
                  513
                  527
                  586
                  735
                1,099
                  788

               13,073
                      578

-------
require primary treatment only, i.e., tissue  subcategory.   The  last
treatment  level is for three mills that require biological treatment,
i.e., tissue (FWP)  subcategory.  The costs to  achieve  these  various
treatment  levels  are shown in Table 192.  These costs are multiplied
by the number of mills to which they apply and a total for each  level
of  treatment  is  obtained  for  each of the four levels of treatment
required.  These final retrofit costs are shown in Table 195 under the
surveyed mills section.

                           Unsurveyed Mills

The  eleven  unsurveyed  mills  that  require   additional   treatment
facilities  are  listed  in  Table  195.   For  purposes of developing
retrofit costs for these mills, the cost developed  for  the  surveyed
mills  for  the  group of mills that averaged 39.1 kkg/day  (43 T/D) in
size, see Table 192, was used for the first ten mills.   To  determine
the  cost for the eleventh unsurveyed rrill, 191 kkg/day (210 T/D), the
retrofit cost developed for the mills that averaged 116  kkg/day   (160
T/D)  was  used,  see  Table 192.  A correction factor was employed in
each calculation  to  reflect  the  difference  in  size  between  the
unsurveyed  mill  and the surveyed mill.  The list of unsurveyed mills
and the results of these calculations is shown in Table 195 under  the
unsurveyed  mills  section.   The  total retrofit costs for the entire
tissue segment is also shown in this table.


Development of Costs

A sample calculation showing how the costs presented in Tables 151-184
for the BK:BCT sutcategory were developed is shown  in  the  following
pages.
                              579

-------
                           SAMPLE CALCULATION


FOR:   BCT Kraft Subcategory
MILL SIZE:  670 Tons per day
                                                               Capital Cost
A.   Internal Costs (All Costs in $1,000)                    Subtotal     Total

     1.    To Achieve Pretreatment:

           90% of Item 3.           0.9 x  62                             55.8

           33% of Item 5.           0.33 x 103                           34.3

           75% of Item 9.           0.75 x 135                          101.0

           50% of Item 10.           0.5 x  530                           265.0

           33% of Item 12.           0.33 x 23.5                           7.8

           33% of Item 13.           0.33 x 11.7                           3.9

           33% of Item 14.           0.33 x 93                            31.0

           33% of Item 18.

                 Pulp Mill                                  13.3

                 Paper Mill (Three  alarms  per machine)         6.5

                                    0.33 x 19.8                           6.6

           90% of Item 21.  (All disc savealls)

                 Two Board Machines, 220 TPD ea.             574.0

                 Three tissue machines, 75 TPD ea.           780.0

                                    O.,9x  1354                          1219.0

           20% of Item 23.  (For Board Machines)

                                    0.2 x  124                            24.8

           30% of Item 24.  (For Tissue Machines)

                                    0.2 x  108                            21.6

           33% of Item 28.           0.33 x 83                            27.7
                                    TOTAL CAPITAL COST               $1,798,500

                                    INT. & DEP. AT 15%               $   269,790

                            580

-------
2.
To achieve BPCTCA
3.
4.
Item Cost
3 62.0
5 103.0
9 135.0
10 530.0
12 23.5
13 11.7
TOTAL CAPITAL COST
INT. & DEP. AT 15%
To achieve BATEA
Item Cost
2 145.0
4 560.0
6 730.0
7 288.0
8 245.0
SUBTOTAL
PLUS BPCTCA
TOTAL CAPITAL COST
INT. & DEP. AT 15%
For NSPS
Cost same as BATEA
TOTAL CAPITAL COST
INT. & DEP. AT 15%
Item Cost
14 93.0
18 19.8
21 1354.0
23 124.0
24 108.0
28 83.0
$2,647,000
$ 397,060

Item Cost
15 147.0
16 95.0
17 237.0
26 430.0
29 193.0
$3,070,000
$2,647,000
$5,717,000
$ 857,560


$5,717,000
$ 857,560
                     581

-------
B.   Internal Power Requirements

     1.    Power Required To Achieve Pretreatment

           90% of Item 3.

           33% of Item 5.

           75% of Item 9.

           50% of Item 10.

           33% of Item 12.

           33% of Item 13.

           33% of Item 14.

           33% of Item 18.

           90% of Item 21.

                 440  x 21.  (Board)
                 665

                 225  x 56.2 (Tissue)
                 665

                                   0.9 x 32.9

           20% of Item 23.  (For Board Machines)

                 440  x 15.2 =  10.1
                 665

                                   0.2 x 10.1

           20% of Item 24 (For Tissue Machines)

                 225  x 11.5 =  3.9
                 665
           33% of Item 28
                                    0.2  x 3.9
                                    TOTAL
13.89
19.01
           KW-HR/T

           0.27

           0.50

           5.54

           0.06

           0.01

           0.00

           0.07

           0.00
          29.61
           2.02
           0.78

           0.76

          39.62 KW-HR/TON
                            582

-------
2.    Power required to achieve BPCTCA
3.
Item
3
5
9
10
12
13

Power
Item
2
4
6
7
8


KW-HR/T
0.30
1.51
7.38
0.11
0.03
0.00
TOTAL
required to achieve BATEA
KW-HR/T
- 1.30
10.80
56.50
2.43
2.34
SUBTOTAL
PLUS BPCTCA
Item
14
18
21
23
24
28


Item
15
16
17
26
29


KW-HR/T
0.22
0.00
32.90
10.10
3.90
2.27
58.72 :

KW-HR/T
1.73
0.57
3.70
17.16
2.20
96.13
58.72
                      TOTAL                             154.85  KW-HR/T




4.    Power Required for NSPS




      Requirements same as BATEA




      TOTAL CONNECTED                                   154.85  KW-HR/T
                        583

-------
C.   External Cost

     1.    To Achieve the Pretreatment Level

           Design Flow     50 K gal/T x  670 TPD x 1.5/1.3 = 38.7 MGD

           Clarifier Flow  38.7 MGD x 47% = 18.2 MGD

           Solids          48,819 #/D Dry Solids

                           53 Million Gal. @ 5 Years 20%

           Black Liquor Spill Lagoon           2500 Gal. - D/T x 670 TPD = 1.67 MG

                                              25% of the Cost

                                   Capital    Depreciation and         Operation and
           Unit Process:	Cost  ($1000)  Interest  ($1000)	Maintenance ($1000)
Preliminary Treatment
Mill Effluent Pumping
170
850
Primary Clarification 1500
Sludge Lagoon
Flow Monitoring
Outfall
Diffuser
Foam Control
Black Liquor Spill Lagoon
540
36
504
240
85
25
25
127
225
81
5
76
36
13
4
12
70
24

39




                 TOTAL COST:         $3,950,000    $592,000                $145,000

     2.    To Achieve BPCTA Treatment Level

           Design Flow     36.5 K gal/T x 670 TPD x  1.5/1.3  =  28.2 MGD

           Solids          72% Removed x 103  #/T x 670 TPD x 92% of TSS to

                           Clarifier = 45,712 #  Dry  Solid/D

           BOD             8.4% Removed Through  Primary Clarifier

           BOD             Influent to ASB    91.6% x 67 #/T  x 670 TPD =

                                              41,119 #/D
                              584

-------
      BOD
      BODr
Effluent 7.6 #/T x 670 TPD * 5902 #/D

                           = 35,217 #/D
      ASB - Biological -  35.217  #/D     =  704 Ac-Ft. - 230 MG
                         50 #/Ac-ft./D

      ASB - Detention    28.2  MGD  x  14 Days          = 395 MG

            Detention Controls

      Aerators        1.25 #02/BODr  x 35,217 #BODr/D x 1.6 = 70,434 #02/D

                                                          = 2934 #02/Hr.

                      H.P. Required  = 2934 //02/Hr.         = 1676 H.P.
                                     1.75 #02/HP-Hr.

      Black Liquor Spill  Lagoon  75%  of the Cost

                                                                  Operation
                      Capital  Cost        Depreciation and      And Maintenance
Unit Process:
Aerators
ASB
Vacuum Filter
Press
Flow Monitoring
Black Liquor Spill
TOTAL COST:
($1000)
1700
4000
900
200
32
Lagoon 75
$6,907,000
Interest ($1000)
225
600
135
30
5
11
$1,036,000
($1000)
200
151
205
28

	
$584,000
3.    To Achieve BATEA Treatment  Level

      Design Flow     27 K gal/T  x 670  TPD x 1.5/1.3 =  20.9 MGD

      Caustic Flow    20.9 MGD (0.2)                 =  4.2 MGD
                    585

-------
Unit Process:
Capital Cost
   ($1000)
Depreciation and
Interest ($1000)
   Operation
And Maintenance
    ($1000)
Mixed Media Filtration 1700
Flow Monitoring
Mini Lime
Mill Effluent Pumping
TOTAL COST:
4 . To Achieve NSPS
28
840
580
$3,U8,000
Treatment Level:
The calculations for NSPS are the
treatment levels
Unit Process:
Preliminary Treatment
Mill Effluent Pumping
Primary Clarification
Sludge Lagoon
Aerators
ASB
Vacuum Filtration
Press
Flow Monitoring
Outfall
Diffuser
Foam Control
Air Flotation
•
Capital Cost
($1000)
130
580
1000
480
1400
3500
1500
200
28
371
100
65
440
Secondary Clarification 2700
(With Recycle)
Black Liquor Spill Lagoon 95
TOTAL COST:
$12,589,000
255
4
126
87
$472,000

same as those for the

Depreciation and
Interest ($1000)
20
87
150
72
210
525
225
30
4
56
15
10
66
405
14
$1,889,000
300

154
45
$499,000

previous

Operation
And Maintenance
($1000)
8
45
20

155
133
244
31
35



42
290

$1,003,000
                        586

-------
D.   External Power Requirements




     1.    Power Required for  Systems Added to Achieve the Pretreatment Level.




           Unit Process;                       KW-Hr/Ton




           Preliminary Treatment                 0.20




           Mill Effluent  Pumping                10.42




           Primary Clarification                 0.61




                 TOTAL:                        11.21 KW-Hr/Ton




     2.    Power Required for  Systems Added to Achieve the BPCTCA Treatment Level.




           Unit Process;                       KW-Hr/Ton




           Aerators                            40.89




           Vacuum Filtration                    1.23




           Press                                0.41




                 SUBTOTAL:                     42.53




                 Pretreatment                   11.21




                 TOTAL:                        53.74 KW-Hr/Ton




     3.    Power Required for  Systems Added to Achieve the BATEA Treatment Level.




           Unit Process:                       KW-Hr/Ton:




           Mill Effluent  Pumping                 5.72




           Minimum Lime                        10.22




                 SUBTOTAL:                     15.94




                 To Achieve BPCTCA:             53.74




                 TOTAL:                        69.68




     4.    Power Required for  System to Achieve the NSPS Treatment Level.




           Unit Process                       KW-Hr/Ton




           Preliminary Treatment                 0.20




           Mill Effluent  Pumping                 5.52
                               587

-------
Primary Clarification                 0.41




Aeration                             31.69




Vacuum Filtration                     1.23




Press                                 0.20




Air Flotation                         0.41




Secondary Clarification               3.27




      TOTAL:                         42.93 KW-Hr/Ton
                  588

-------
Cost, of SSL Recovery

A  study  of  the  economics of an MgO recovery system for a 453.5 kkg
(500 ton)  per day magnesium bisulfite pulp mill was conducted and  the
results  are  discussed  below and presented in Table 196.  Costs were
computed at Fall 1974 prices.  The Engineering News Record was used to
adjust costs that were not directly available at 1974 prices.

It was found that for a new sulfite mill producing 453.5 kkg (500 ton)
per day of unbleached pulp it would cost $774,000 per  year  or  $4.63
per  kkg  ($4.20  per  ton)  of pulp to cover the fixed plus operating
costs of the MgO recovery system.  The firing of spent liquor  in  the
recovery furnace produces a net flow of 73,550 kkg (162,000 pounds)  of
steam  per hour from the boiler.  Therefore, the capacity of the power
boiler required for a new mill can be reduced from 109,415 kg (241,000
pounds) to 35,865 kg (79,000 pounds)  of steam  per  hour.   The  lower
cost  of the smaller boiler results in a $1,040,000 savings in capital
expense which could be credited to offset a fraction  of  the  capital
expenditure of $31,250,000 required for the MgO recovery installation.
Since  the total capital cost for the MgO recovery system includes the
equipment required for the regeneration of magnesium bisulfite cooking
liquor, the cost for  a  new  mill  would  also  reflect  the  savings
incurred  by  the  elimination  of  the liquor preparation system that
would have been installed  in  a  calcium  base  sulfite  mill.   This
capital savings amounts to $621,000.

For  an  existing  sulfite  mill,  the  capital  savings  on equipment
mentioned above were not included in the cost calculations.  The total
fixed plus operating cost for the addition of an MgO  recovery  system
in  an existing mill was determined to be $1,059,000 per year or $6.28
per kkg ($5.70 per ton) of pulp produced.

The operating costs include additional costs and savings realized  due
to  the  operation  of  the  MgO  recovery  system  compared  with the
operating costs of a  calcium  base  sulfite  mill  without  recovery.
Costs   under  consideration  included  the  difference  in  costs  of
chemicals, electricity, manpower, maintenance, and fuel.

The cost  of  chemicals  was  determined  by  comparing  the  cost  of
chemicals  for calcium base liquor to the cost of makeup chemicals for
magnesium base liquor with a chemical recovery system.   The  chemical
savings amounts to $1,015,000 per year for the magnesium base liquor.

The  additional electrical requirement for the operation of the liquor
recovery system is 181 KWH per kkg (164 KWH per ton)  of pulp.   At  an
average  cost  of $12 per 1000 KWH, this results in an electrical cost
of $360,000 per year.  Operation of the recovery system requires  four
men  at  an estimated annual cost of $16,000 per man, which covers the
costs of salary, overtime and overhead.  The manpower requirements  of
the MgO recovery system amount to $256,000 annually.

Maintenance cost information was supplied by an equipment manufacturer
(326).  The total maintenance cost for the recovery system amounted to
$500,000  per  year.  This figure is a typical maintenance expenditure
for an existing MgO recovery system of similar size.  However, it  was
                             589

-------
noted  that this figure could probably be reduced in the future due to
familiarization with the recovery process and design revisions in  the
trouble  areas.   The  equipment  manufacturer  also supplied order of
magnitude capital  cost  estimates  for  power  boilers  and  the  MgO
recovery system.

Fixed  costs  of the recovery system include interest and depreciation
and were calculated as 15% of the total investment.  The  fixed  costs
amount to $4,688,000 per year.

The  greatest  savings incurred by the installation of an MgO recovery
system is the savings in fuel due to  the  burning  of  spent  sulfite
liquor.    The  net  heat  available  from  the  recovery  boiler  was
calculated by first determining the gross heat produced in the  boiler
and then subtracting the heat required to operate the recovery system.
Heat required for the system includes the heat needed to evaporate the
liquor  from 1356 solids to 56% solids in a qunituple effect evaporator
plus heat needed to evaporate the remaining water in the liquor  fired
to the boiler plus steam required to operate soot blowers.  Converting
the  net heat available to its equivalent amount of No. 6 fuel oil, at
$10 per barrel, a saving of $3,730,000 per year results.

With the relative cost of  fuel  rising,  MgO  recovery  becomes  more
attractive.   For  the  453.5  kkg   (500 ton) per day mill used in the
calculations, the break even  point  for  the  magnesium  base  liquor
recovery  system  installed in a new mill would be at a price of No. 6
fuel oil of $12.10 per barrel.  For an existing mill the system  would
break  even at a fuel oil cost of $12.85 per barrel.  These break even
figures are calculated using Fall 1974 prices and  are  contingent  on
the stability of other prices used in the computations.

It  should  also  be  noted  that  a mill would not consider a capital
expenditure solely on economic considerations unless that  expenditure
would  be  paid  for in a minimum of 5 years through profits generated
through the  operation  of  the  system.   Therefore,  the  evaluation
indicates  that  a  mill would not make the decision to install an MgO
recovery system purely for economic gain but other factors may justify
the installation of recovery systems, such as physical location of the
mill,  shortage of chemicals, or pollution control,  since  the  annual
cost   of  the  MgO  system  is  generally less than two percent of the
selling price of the paper products.

In addition, this general analysis does not eliminate the  possibility
of  a  specific  mill  making  an MgO recovery system profitable.  The
variation in capital cost of the recovery system is the determinant in
the profitability of the specific installation.  One mill has reported
that the MgO recovery installation in their 544 kkg  (600 ton) per  day
mill showed an appreciable return one year after it was put on line in
September  1969   (327).   The  profitability  of  the  system  can  be
attributed to  the modification of existing equipment, availability  of
space  and short piping runs.
                            590

-------
                              Table 196

             ECONOMICS OF MqO RECOVERY - NEW MILL 500 T/D

VARIABLE OPERATING COSTS

                                                 $lQQQ/yr.
Base Costs


Sulfur Costs


Electrical Costs

Manpower Costs

Maintenance Costs
   Chemical Savings of MgO        +160
   System as compared to Ca.

   Chemical Savings of MgO        +855
   System as compared to Ca.

   $12/1000 KWH                   - 360

   4 men, 4 shifts, $16,000/man   - 256

   Total MgO Recovery System      - 500

   Savings due to smaller power
   boiler required                +  25
                    Savings due to elimination
                    of Ca Base Liquor Preparation  +
Net Heat Available  71.3 Ib. #6 Oil/10* BTU
Expressed as #6
Oil
   #6 Oil 3 $10./bbl.


NET OPERATING COST
FIXED COSTS

Fixed Costs -
Recovery System

Fixed Costs -
Power Boiler
Fixed Costs -
Liquor Prep.
   15% of Investment
   Fixed cost savings incurred
   by reduction in Power Boiler
   size
                 TOTAL FIXED COST

TOTAL YEARLY COSTS
Total Cost
   Total Fixed Cost + Net
   Operating Cost
     + Denotes Credit
     - Denotes Cost
   11

+ 3730



+3665



-4688


+ 156
   Savings incurred by eliminna-  +
   tion of Ca Base Liquor
   preparation                    	
   93
                                  -4439
                                                   - 774
                              591

-------
                          Table 196 (Cont'd)

             ECONOMICS OF MqO RECOVERY - NEW MILL 500 T/D

INVESTMENT COSTS

                                                    Million Dollars
Investment Cost



Investment Savings


Investment Savings
                        Cost of Total recovery          31.25
                        system. Estimate by Babcock
                        & Wilcox

                        Due to Reduction in power        1.04
                        boiler size

                        Due to elimination of Ca base     . 62
                        liquor making system            	
               NET INVESTMENT COST                      29.59

          ECONOMICS OF MqO RECOVERY - EXISTING MILL 500 T/D

VARIABLE OPERATING COSTS

                                                        $1000/vr.

                                                          + 160
Base Costs


Sulfur Costs


Electrical Costs

Manpower Costs

Maintenance Costs

Neat Heat Available
MgO w/recovery compared to
Ca w/o recovery

Mg/0 w/recovery compared to
Ca w/o recovery

$12/1000 KWH

4 men, 4 shifts, $16,000/man
                        Expressed as No. 6 Fuel oil
                        3 $10/bbl

                   NET OPERATING COST

                   FIXED COST 15% of Investment
TOTAL YEARLY COST
Operating and Fixed Cost
TOTAL INVESTMENT COST
 + 855


 - 360

 - 256

 - 500

 + 3730


 + 3629

 -U688




 -1059


+31,250
                               592

-------
Relative Costs of short Detention Time Biological Treatment Systems

In  order  for  the mills located in the northern climates to meet the
effluent limitations,  it  is  necessary  that  they  use  an  aerobic
biological  system which minimizes the effects of cold climate.  Since
decreases in treatment effectiveness  across  biological  systems  for
mills operating in Northern climates can be related to the temperature
drop  across the system, systems utilizing short detention times which
minimize the heat transfer through the system should be used in  order
to minimize the impacts of temperature upon treatment effectiveness.

Cost   curves  have  been  developed  for  each  biological  treatment
technology normally used by the pulp and paper industry.  These curves
and the resultant costs for "model" facilities  are  general  and  are
subject to variations when applied on a mill by mill basis.  The model
mill  is  representive of a 608 kkg (670 tons)/day bleached kraft fine
papers mill and the raw waste loads and final effluent gualities shown
in Table 150 were used as the basis of the cost curves.

Several unit processes are common to all  of  the  aerobic  biological
treatment system considered.  The additional processes included in the
systems  are (1) preliminary treatment,  (2) mill effluent pumping,  (3)
primary   clarification,    (4)    neutralization,     (5)    secondary
clarification,  (6) foam control,  (7) outfall with multi-port diffuser,
(8)  air  flotation,   (9)   vacuum  filtration,  (10) V-press, and (11)
emergency sludge lagoon.

The four alternative treatment systems considered were:

    1.   Conventional Activated Sludge - Conventional activated sludge
         systems are normally designed with a detention  time  of  6-8
         hours.  Because of the short detention times, this process is
         subject  to  upsets because of variations in wastewater flows
         and  shock  loadings.    An   equalization   basin    (12-hour
         detention)  was  included  in this system to minimize process
         shock loadings and upsets  of  the  treatment  systems.   The
         process design criteria were:

                   Detention Time      6-8 Hours
                   F/M Ratio           0.3-0.5
                   Organic Loading     50# BOD/1000 FT3
                   02 Transfer         1.75# 02/HP-Hr.
                   02 Requirement      1.0# 02/BODR

    2.   Extended Aeration - Because of the larger detention times  in
         the  aeration basin, process upsets will not be as pronounced
         as with a short-term activated sludge system.  Therefore,  an
         equalization basin has not been included.  The process design
         criteria were:

                   Detention Time      30 Hours
                   F/M Ratio           0.1
                   Organic Loading     20-40* BOD/1000 FT3
                   02 Transfer         1.75# 02/HP-Hr.
                   02 Requirement      1.25* 02/#BODR
                              593

-------
    3.   High-Purity Oxygen - A  manufacturer  of  high-purity  oxygen
         equipment  was  contacted to ottain suggested design criteria
         and budgetary cost estimates for a high-purity oxygen system.
         An  equalization  basin  was  included  in  the  system   for
         minimization of process upsets.   From the manufacturer's data
         and   other   data,   the   following  design  criteria  were
         determined:

                   Detention Time      1.8 Hours
                   F/M Ratio           0.65
                   Organic Loading     138# BOD/1000 FT3

    4.   Rotating Biological Surfaces - Rotating  Biological  Surfaces
         have  received  limited use up to the present by the pulp and
         paper  industry  in  northern  climates.   An  enclosure  was
         provided  to  house the process equipment and an equalization
         basin was provided.  The design criteria were:

                   Detention Time      2.0 Hours
                   F/M Ratio           1.5
                   Organic Loading     2.2 Gal/Day/FT2

As mentioned previously, minimization of temperature reduction through
an aerobic biological treatment system  is  essential.   Each  of  the
above   described   systems  will  result  in  minimizing  temperature
reduction  through  the  system  because  of  their  relatively  short
detention  times.  The equalization basin suggested for use in several
of the systems is a tank which would be  constructed  at  the  maximum
economical  depth  to  minimize  surface area.  Temperature reductions
through these equalization basins would  be  less  than  those  for  a
comparable   aerated   facility  where  mixing  exposes  substantially
additional water to the ambient temperature.

The extended aeration system considered uses  an  aeration  period  of
approximately  30  hours.   This system would be more susceptible to a
temperature drop, with a corresponding increases in BODji and suspended
solids in the effluent.  This is primarily due to the  detention  time
and the exposed surface area.

Figures  119  through  122 are presented to show the relative costs of
achieving the effluent limitations  for  a  model  mill  using  either
conventional  activated  sludge,  extended  aeration, oxygen activated
sludge,   or   rotating   biological   surfaces   treatment   systems,
respectively.   The  costs  were prepared by the same methods as those
presented in Tables 151  through  184.   The  total  annual  operating
costs,  also  shown on Figures 119 through 122, are comprised of labor
costs for operation and  maintenance  associated  with  the  facility,
power,  chemicals  and  depreciation.   Interest  was assumed to be 15
percent of the capital expenditure.


ENERGY REQUIREMENTS
                              594

-------
                              FIGURE  119

              ACTIVATED SLUDGE
   100
O
O
cn

UJ
2
o:
<
o
Q

2
O
5
i

CO
O
o
                                                100
                      595

-------
   100
CO
IT
O
Q
UJ
CO
tr
o
o
CO
o
o
                               FIGURE  120

            EXTENDED AERATION
                                     10
100
                         FLOW - mgd
                       596

-------
                                FIGURE  121

             HIGH  PURITY OXYGEN
   100
tn
o
Q

s
UJ
z
a:
o
o
2
I

h-

o
o
    .1
                                                 100
                     597

-------
                                      FIGURE 122

  ROTATING  BIOLOGICAL  SURFAOES
   100
CO
o:
o
o
CO
cr
o
o
CO
o
o
                                                100
                       598

-------
The costs presented in Tables 151 through 184  include  energy  costs.
Costs  for  electrical  energy  are  shown  in Table 197 for secondary
treatment  with  aerated  stabilization  basins  and  Table  198   for
activated  sludge in place of ASB.  Such costs vary only slightly on a
per-unit-of-production basis among  mills  of  the  same  subcategory.
Plant operation for 360 operating days per year have been assumed, and
a  unit  cost  of  2.0   cents  per.  kwh  was  used.   In  cases where
incineration of sludge is practiced, there may be a  heat  requirement
or  heat  recapture, depending upon equipment employed, but no overall
heat gain or loss from this  cause  is  assumed  on  an  industry-wide
basis.

MgO liquor recovery is included with the base mill for the sulfite and
dissolving sulfite subcategories.

Electrical energy projections at various levels of treatment are shown
in  Table  199,  on a per kkg (ton)-of-production basis, using aerated
stabilization basins, and Table 200 is for activated sludge in a place
of ASB.

For approximate comparison purposes, total  mill  energy  requirements
per kkg  (ton)  (excluding internal and external treatment) are shown in
Table 201.


NON-WATER QUALITY ASPECTS OF CONTROL AND TREATMENT TECHNOLOGIES

Air Pollution Potential

There are several potential air pollution problems associated with the
external   treatment   of   effluents   from  mills  in  each  of  the
subcategories.

When properly designed and operated, primary and biological  treatment
do   not   produce  odors  associated  with  anaerobic  decomposition.
However,  biological  treatment  of  the   waste   waters   of   these
subcategories  does  result  in  very localized odors, especially when
mechanical aeration is employed.  The odor is characteristic  of  wood
extractives.

Odors  can also arise from improper land disposal of liquid sludges as
a result of their anaerobic  decomposition.   These  derive  primarily
from  organic  acids  and  hydrogen  sulfide  produced on reduction of
sulfates dissolved in the water content of  the  sludges.   Dewatering
prior  to  disposal  on  the  land  inhibits  such decomposition, thus
reducing odors.  The use of  sanitary  landfill  practices  will  also
mitigate odor problems.

Sludge lagooning usually takes place on large sites.  The low level of
odor produced is generally confined to company property.  The practice
of decanting free water from lagoons and returning it to the treatment
system  has  noticeably  reduced  the  odor  level  in their immediate
environs.
                              599

-------
                                   Table  197
                           AERATED STABILIZATION BASIN
                               ELECTRIC POWER COST
                                 $1000 Per Year


                              Mill Size
     Subcategory               Ton/Day       Pretreatment   BPCTCA    BATEA     NSPS

Papergrade Sulfite               530              164         712      918       742
Market Sulfite                   530              164         660      860       765
Low Alpha Sulfite                550              115         585      985       983
High Alpha Sulfite               550              115         913     1289      1088
Deink                            230               44         167      178       178
Dissolving Kraft                 600              113         443      981       853
Market Kraft                     700              129         424     1000       803
BCT Kraft                        670              248         550     1098      1017
Fine Kraft                       670              245         451      990       946
Groundwood Chemi/Mech            300               35         188      353       346
Groundwood Thermo/Mech           300               23         140      302       298
Groundwood C-M-N                 150               21          66      149       153
Groundwood Fine                  300               49         128      293       293
Soda                             300               95         237      477       441
Non-Integrated Fine              100               13          29       37        39
Non-Integrated Tissue            110               26          62       70        71
Non-Integrated Tissue (fwp)      110               25          75       80        80
                                 600

-------
                                   Table 198
                                ACTIVATED SLUDGE
                               ELECTRIC POWER COST
                                 $1000 Per Year
                              Mill Size
     Subcategory               Ton/Day

Papergrade Sulfite               530
Market Sulfite                   530
Low Alpha Sulfite                550
High Alpha Sulfite               550
Deink                            230
Dissolving Kraft                 600
Market Kraft                     700
BCT Kraft                        670
Fine Kraft                       670
Groundwood Chemi/Mech            300
Groundwood Thermo/Mech           300
Groundwood C-M-N                 150
Groundwood Fine                  300
Soda                             300
Non-Integrated Fine              100
Non-Integrated Tissue            110
Non-Integrated Tissue (fwp)      110
Pretreatment   BPCTCA
     164
     164
     115
     115
      44
     113
     129
     248
     245
      35
      23
      21
      49
      95
      13
      26
      25
641
665
520
879
174
448
406
540
458
184
139
 72
129
235
 29
 62
 78
BATEA

 846
 865
 919
1255
 185
 986
 982
1088
 996
 350
 301
 155
 294
 475
  38
  74
  83
NSPS

 665
 723
 808
1145
 173
 806
 743
 992
 907
 329
 297
 145
 281
 419
  37
  69
  76
                                 601

-------
                                Table  199
                           AERATED STABILIZATION  BASIN
                   ELECTRICAL ENERGY  REQUIREMENTS FOR TREATMENT
                                     kwh/ton

                              Mill Size
     Subcategory               Ton/Day        Pretreatment    BPCTCA     BATEA     NSPS

Papergrade Sulfite               160
                                 530

Market Sulfite                   160
                                 530

Low Alpha Sulfite                550

High Alpha Sulfite               550

Deink                             80
                                 230
                                 500

Dissolving Kraft                 600
                                1000

Market Kraft                     350
                                 700

BCT Kraft                        250
                                 670
                                1300

Fine Kraft                       250
                                 670
                                1300

Groundwood Chemi/Mech            100
                                 300
                                 600

Groundwood Thermo/Mech           100
                                 300
                                 600

Groundwood C-M-N                  75
                                 150
                                 500

Groundwood Fine                  150
                                 300
                                 550

Soda                             300
                                 700

Non-Integrated Fine               30
                                 100
                                 280

Non-Integrated Tissue             15
                                  35
                                 110
                                 450

Non-Integrated Tissue (fwp)       15
                                  35
                                 110
                                 450
                                          602
47.1
42.4
47.1
42.4
28.6
28.6
27.7
26.2
25.7
25.8
25.2
25.6
25.2
53.0
50.8
49.7
50.6
50.1
49.6
18.9
16.2
15.7
10.7
10.7
10.7
21.6
18.9
17.0
23.6
22.2
22.0
43.3
42.2
18.0
18.0
18.0
31.8
31.8
31.8
31.8
31.7
31.7
31.7
31.7
196.4
184.0
166.3
170.7
145.8
227.3
115.6
99.4
96.2
101.1
101.6
83.4
83.0
115.4
112.4
112.4
92.5
92.2
91.8
90.9
85.9
85.0
69.0
64.0
62.8
64.4
59.9
58.1
58.9
58.5
56.3
108.2
107.7
41.4
40.2
39.8
80.4
78.5
77.4
76.7
97.0
94.3
93.9
92.8
249.4
237.2
218.1
222.4
245.4
321.1
120.1
105.8
102.3
224.0
222.9
198.0
195.6
223.6
224.5
221.6
204.0
202.3
200.6
165.9
161.4
160.5
142.7
138.1
136.9
140.4
135.8
133.7
134.8
134.0
131.8
217.6
215.8
51.0
50.6
49.9
90.1
87.9
86.7
85.9
103.1
100.3
99.9
98.6
205.2
191.7
204.0
197.7
244.9
270.9
105.9
105.2
194.7
157.2
208.0
204.6
193.5
19313
159.1
157.8
155.9
141.3
136.3
135.1
145.9
139.5
134.4
139.5
134.0
133.1
201.3
197.5
52.8
50.2
88.1
85.1
99.8
97.9

-------
                                 Table 200
                               ACTIVATED  SLUDGE
                  ELECTRICAL  ENERGY  REQUIREMENTS FOR TREATMENT
                                    kwh/ton
                        Mill  Size
                          Ton/Day

                            160
                            530

                            160
                            530

                            550

                            550

                             80
                            230
                            500

                            600
                           1000

                            350
                            700

                            250
                            670
                           1300

                            250
                            670
                           1300

                            100
                            300
                            600

                            100
                            300
                            600

                             75
                            150
                            500

                            150
                            300
                            550

                            300
                            700

                             30
                            100
                            280

                             15
                             35
                            110
                            450
Non-Integrated Tissue (fwp)   15
                             35
                            110
                            450
     Subcategory

Papergrade Sulfite


Market Sulfite


Low Alpha Sulfite

High Alpha Sulfite

Deink



Dissolving Kraft


Market Kraft


BCT Kraft



Fine Kraft



Groundwood Chemi/Mech



Groundwood Thermo/Mech



Groundwood C-M-N



Groundwood Fine



Soda


Non-Integrated Fine



Non-Integrated Tissue
Pretreatment

     47.1
     42.4

     47.1
     42.4

     28.6

     28.6

     27.7
     26.3
     25.7

     25.8
     25.1

     25.7
     25.3

     53.0
     50.8
     49.7

     50.6
     50.1
     49.6

     18.9
     16.2
     15.7
                    BPCTCA
BATEA
     10,
     10,
     10,
     21.6
     18.9
     17.0

     23.6
     22.2
     22.0

     43.3
     42.2

     18.0
     18.0
     18.0

     31.8
     31.8
     31.8
     31.8

     31.7
     31.7
     31.7
     31.7
175.0
165.7
237.8
171.8
129.4
218.9
107.1
103.7
101.4
102.2
97.0
82.4
79.5
115.4
110.4
109.3
97.4
93.6
93.2
92.3
84.1
82.2
71.8
63.5
62.6
73.5
65.3
59.9
61.7
58.9
57.3
!07.3
104.6
41.4
40.2
39.8
80.4
78.5
77.4
76.7
107.9
101.6
97.1
228.1
218.6
289.6
223.5
228.9
312.7
111.6
110.1
107.5
225.1
218.3
196.9
192.1
223.7
222.5
218.6
208.9
203.7
202.0
167.3
159.6
157.7
145.5
137,6
136.7
149.5
141.2
135.5
137.6
134.4
132.8
216.7
212.7
59.2
55.0
52.2
92.3
96.4
91.9
89.2
114.0
107.5
103.1
                                                              93.4
 99.2
NSPS

179.1
172.0

194.1
186.9

201.3

285.3
          102.9
          100.3
          184.0
          145.4
          202.9
          199.5
          185.5
          182.8

          153.6
          150.4
          148.8
          144.1
          135.8
          134.9

          140.4
          132.1
          127.1

          131.2
          128.5
          127.1

          191.2
          185.4
           50.8
           48.1
                                                                                 85.6
                                                                                 82.9
 94.5
 93.6
                                           603

-------
                        to
                        O-
                              CM
                                    vc
                                    O
                        r-.    co    *a-
                        in    o    01
                        i—    CM    i—
                                              CO
                                              LO
                                              o    *i-    i—    co
                                              «3-    CO    O    in
                                              i—    i—    CM
                                                                                                            in
                                                                                                            CO
                  4J
                   1C
*    £
i—    CO
 10
CO
CM
      LO    IO

      ^J-    O

      CM    r—
                                          CM
                                          C\J
                                                      IO    in    CM

                                                      O1    CM    O

                                                      i—    CM    CM
                                                                                CO
                                                                                CO
                                                    «*•    co    i—
                                                    co    i—    in
                                                    i—    CM
                                                                                         CM
                                                                                         CO
                                                                                                            IO
                                                                                                            CO
                  -o
                  T3
                        o
                        a.
                        CO
                              co
                                                i—    CO
                                                o    co
                                                                      VO
                                                                      CO
                                                                 c
                                                                 vo
                                                                             co
                                                                             o
                                          10
                                          CM
                                                 in    r—
                                                 CM    in
                                     O
                                     in
                                                                 O\    CM
                                                                 r—    CM
                                                                                               CO    CM
                                                                                               i—    CO
                                                                              CM
                                                                              CO
      3
      cr
O
CM
inmoinininin       c        in
CO    co    CM   r-.    ro    CM    CM       CO        co
CT>    f"^    Is**   CD    f*^    CO    ^"       VO        ^~
i^    i^    PO   co    r~-    co    co       
c
O
CO
c    in     LO
O    CM     CM
1-^    •=!-     ^J-
                      E H-
                      rO CO
                      CU
                        CO

                        CM
      CO
      CM
                         CO
                         CM
                                              in    in    «s-
                                              i—    .—    CM
                                                                                                                                         CU

                                                                                                                                         i
                               (1)
                              +J
                                     CU
                                                                                                                  CU
                                                                                                                   CU

                                                                                                                   to
                                                                                                                   VI
                                                                                                                               CD
                                                                                                                                         cr

                                                                                                                                         g
                         o
                         ai
                         a>
                        +->
                         re
                         u
                        J3

                        00
 CU     en

"S     c
 £    •-


 ?    o
 CU     10
 O.     
                                                                                                                                   ai
                                          ce

                                         "3

                                          3
                                         t>
                                                           604

-------
Incineration of sludges produced in the effluent  treatment  processes
can, without appropriate control equipment, result in the discharge of
particulates to the atmosphere.  However, emission control devices are
available  to  meet  state  regulatory requirements in most instances.
Incinerators are either sold with integral emission control appliances
or  are  equipped  with  them  on  installation.   Gaseous   pollutant
emissions from such incinerators are negligible.

Internal  controls  which  effect  a  reduction  in fiber and additive
losses, such as savealls, recycling of process waters, and removal  of
dregs  and  grits  in the kraft recovery process, are not producers of
air pollution.  On the other hand, recovery of  cooking  chemicals  in
the  kraft  process,  which,  in addition to its principal function of
conserving expensive raw materials and heat,  also  serves  to  reduce
chemical  waste  load,  produces odorous sulfur compounds.  When these
escape the recovery furnace to the atmosphere, they become  the  major
air  pollution  problems of the mill.  These emissions and measures to
control them are described in a report prepared for an EPA predecessor
agency entitled "Control of Atmospheric Emissions in the Wood  Pulping
Industry" (125) .


Noise Potential

There  are  no  official records of public noise problems arising from
the operation of effluent treatment works by the subject subcategories
of mills.  However, on the basis of  many  year's  of  observation  of
industry   operations,   it  can  be  stated  that  public  complaints
engendered by such noise are very infrequent.   This  is  due  in  all
probability to the remote location of most large treatment works or to
their  confinement,  in  some  instances,  to manufacturing or utility
areas.  Also, the noise level of most  of  the  devices  employed  for
treatment   is   generally  lower  than  that  of  some  manufacturing
machinery.

The sources of  noise  are  for  the  most  part  air  compressors  or
mechanical  surface  aerators  supplying  air  to treatment processes,
vacuum pumps and centrifuges involved in sludge dewatering,  and  fans
serving  sludge incinerators.  With the exception of surface aerators,
these devices are most frequently operated in buildings which serve to
muffle their noise.

Small surface aerators are generally found in small  mills  which  are
more  likely  to be located closer to habitation.  Units of this size,
particularly those not  driven  through  gear  boxes,  produce  little
noise.   The problem cf noise emanating from gear boxes is the subject
of an extensive investigation by the Philadelphia Gear  Company  which
manufactures  many  of these units.  It is anticipated that this study
will lead to a reduction in noise from these sources.  Noise  produced
by  the  large  aerator  units  which  are  usually operated away from
populated areas is usually neither high-level nor far-carrying.

A new "noiseless" aeration system has been installed  in  a  32.7-acre
reservoir  to  reaerate  2U.5  MGD  of  waste  water from a kraft mill
located near an urban area.   The  system  consists  of  465  vertical
                               605

-------
plastic  subsurface  air  pipes  supplemented by 195 "air pump" tubes.
The only moving parts are blowers to force more than a ton of air  per
hour into the waste water (160).

It can be concluded that noise produced by equipment used for treating
pulp and paper mill effluent is not a major public problem at present.
Efforts  underway to reduce the noise level of mechanical equipment in
general stimulated by  industrial  health  protection  programs,  will
assist in preventing it from becoming one.


Solid Wastes and Their Disposal

Sludge  cake resulting from the dewatering of sludge is, to the extent
that it could be termed "solid," the  only  solid  waste  specifically
attendant  to  the control and treatment technologies practiced by all
of the subject subcategories.  This subject is covered in Section  VII
and  in  a  study  on solid waste management practices in the pulp and
paper industry for EPA's Office of  Solid  Waste  Management  Programs
(303) .

Solid  wastes  in terms of process residues which require disposal are
declining in quantity in some areas of the mills due  to  more  modern
practices.  The disposal of bark will become less and less a pulp mill
disposal  problem as the trend to the use of delivered chips, sawdust,
etc., intensifies.  Where barking  is  still  practiced  on  a  mill's
premises, silt is produced in amounts which vary with wet/dry weather,
etc.,  in addition to bark.  The bark is most likely to be incinerated
in especially designed units by mills  in  all  pulping  subcategories
except the large bleached kraft mills, or complex mills, which produce
sufficient  bark  to fire a boiler for steam generation.  Long washing
overflow containing silt and fine bark particles generally  joins  the
steam carrying ash from- the mill which is discussed below.

In line with the economic trend of salvaging usable fiber, rejects and
screenings  are to a greater extent re-refined  (groundwood), re-cooked
in the chemical pulping  processes,  or  sold.   Otherwise,  they  are
incinerated,  burned  in  a  bark-fired  boiler,  or  disposed  of  by
landfill.  This is also true of broke and trimmings in a paper mill —
they are returned to the process or burned.

Particulate emissions from incineration of bark and other solid wastes
can be  controlled  by  effective  devices  such  as  bag  filters  or
scrubbers.

Grits  and  dregs  from  the   causticizing  system  of  kraft and soda
recovery plants, inorganic solids, are generally  water-carried  to   a
land disposal site.

Intermittent  washing  of  the reaction towers in calcium base sulfite
mills  (every two months or so)  produces  a  small  amount  of  grits.
These  are  easily  dewatered  for land disposal or can be sent to ash
ponds.
                               606

-------
Deink mills do  not  produce  the  large  quantities  of  trash  which
generated  in  waste  paperboard  mills  because of better quality raw
materials.  In 1971, deink accounted  for  only  one  percent  of  the
industry's  solid  wastes  while  the  use  of  waste  paper  in other
processes contributed nine percent (303).

Ash from bark- and coal-fired  boilers,  screening  rejects,  in  some
cases,  and  other  materials  as noted above are as a rule discharged
hydraulically to ash ponds.  There the solids settle and  compact  and
the clear supernatant water is discharged to the mill effluent system.
In  some instances, ash and rejects are hauled to a disposal area away
from the mill site.  Wet handling  of  these  materials  avoids  their
being blown into the atmosphere.

Waste  paper,  garbage, and trash attendant to production or accessory
operations and activities are either incinerated on the site or hauled
away for disposal by contractors engaged in this business,


Byproduct Recovery

Byproducts can be defined as those materials produced by wood  pulping
that  can be removed from the pulping and/or chemical recovery process
and sold.  They do not include chemicals recovered and reused  in  the
process such as sodium and sulfur compounds in a kraft operation which
are employed in the preparation of fresh cooking liquor.

For  the  most  part,  the  pulp mill sells the basic material used in
marketable by-products to chemical plants which manufacture the  final
products.   These  are produced either through purification of the raw
materials or by chemical reaction and separation.  If  preparation  of
the  raw  materials  for shipment from the pulp mill is required, this
operation may contribute a portion of the pulp mill waste load  unless
the effluent can be absorbed by the recovery plant for its chemical or
heat value.

By-Products of Kraft Pulping

Many  kraft  mills  recover  two  by-products from the pulping process
other than chemicals that are reused — tall oil and crude  turpentine
 (60).   These  materials  are  present  to the greatest degree in pine
species, particularly those common to the south.  They are not usually
recovered in mills where other  woods  low  in  these  substances  are
pulped.

Tall  oil  is  a  mixture of the resin and fatty acids present in wood
which are saponified during the pulping process and separate from  the
black  liquor  during  concentration  or cooling  (162).  Southern pine
species contain approximately 90 to 150 kg  (180 to  300  Ib)  of  this
material per kkg  (ton) of air dried pulp produced  (60).  It is skimmed
from  concentrated  black  liquor  storage tanks in the form of sodium
soap  (163).  Some mills convey the soap directly to tank cars in which
it  is shipped to chemical plants for use in manufacturing a number  of
marketable   products   including   detergents,   adhesives,   paints,
disinfectants,  special  oils,  soaps,  and  plasticizers   (16U) (163).
                             607

-------
Other  mills  acidulate the soap to produce the oil prior to shipping.
This is generally accomplished by adding 30  to  50  percent  sulfuric
acid  to the soap and separating the oil from the dregs by decantation
or centrifuging.  Some acidulation  plants  operate  on  a  batch  and
others  on  a continuous basis (60).  BOE5 and COD values for tall oil
are 0.72 and 1.25 kg  (1.58 and 2.76  lb}  per  kb  (Ib)  of  tall  oil
respectively.   The  process  produces dregs which consist of a strong
solution of sodium sulfate  together  with  precipitated  lignins  and
other residues of black liquor origin.  These are returned to the pulp
mill  recovery system in order to reclaim the chemical and heat values
contained therein (165).  Thus, the wastes from tall  oil  collection,
processing,  and shipping are minor in quantity.  They consist of wash
water from cleaning floors, equipment, and loading platforms and  are,
for the most part, intermittent in nature.

Pine  woods contain from 6 to 18 1 of turpentine (1.5 to 4.3 gal.) per
kkg (ton)  of air dried pulp.  The quantity depends upon  the  specific
wood  species pulped, tree age, soil conditions, seasonal changes, and
climatic conditions as well as the type and length of time of  storage
(60) (166) .

Most  of  the substance appears in the digester relief condensate from
which it is recovered.  The gases  leaving  the  digester  are  passed
through  a  cyclone  in  which black liqupr is separated out for entry
into the recovery system.  The steam-turpentine mixture then goes to  a
surface condenser, the condensate from which  is  sent  to  a  storage
tank.   There  the  water  and  turpentine separate by gravity and the
turpentine is decanted off for storage or shipping (167).   The  water
fraction  is sewered with the other condensates or, in some instances,
disposed of on the land.

Crude turpentine is shipped to chemical plants for rectification after
which it is sold for use as a  solvent  or  fractionated  to  separate
specific ingredients.  Some of these are used as base compounds in the
production  of  other  chemicals  (168), such as dimethyl sulfoxide, an
excellent industrial  solvent  (169).

Some turpentine remains in the decanted water which joins the  general
condensate stream.  In some mills anti-dispersants are used to enhance
the  separation and thus reduce the quantity of turpentine lost to the
sewer.

Mill practices which will permit more complete recovery of  turpentine
and  tall  oil are forecast.  For example, shorter storage of chips or
precooking extraction  would prevent the loss of  turpentine  and  tall
oil  by  oxygenation prior to pulping.  Solvent extraction of the soap
from black liquor could improve recovery efficiencies  (168).

On the other hand there are factors which  will  inhibit  recovery  of
these products.  Increased use of continuous digesters will reduce the
yield  of  turpentine  thus  creating a need for an economic method of
turpentine recovery from the black  liquor  in  continuous  processes.
Mixing  pine  and  hardwood black  liquors reduces the  recovery of tall
oil and separate liquor tanks will be required   (170).   Use  of  more
                              608

-------
hardwood,  sawmill wastes, immature wood, and outside chip storage are
other adverse factors (163).

Production of other by-products, such as methanol, acetic acid,  tars,
etc.,  from  kraft mills on a commercial scale is not yet economically
feasible.   Effluent  limitations  and  standards  are   expected   to
stimulate  increased  research  on  by-product  recovery  in  the next
decade.


Bv-Products of Sulfite Pulping

While in recent years  the  number  of  sulfite  mills  producing  and
marketing  by-products  has  not  increased, eight mills continue such
production and, in some instances, enjoy  a  concomitant  decrease  in
waste load (52) (171).  Presently about 10 percent of the spent sulfite
liquor produced in this country is used and there is little indication
that  this  quantity  will  increase   (172) (173) (174).  Sulfite mills
marketing by-products are shown in Table 202.

These by-products derive from the spent pulping  liquor  and  digester
and  evaporator  condensates.   The  liquor  products include 1) those
which use the whole liquor itself; 2) products made  from  the  liquor
sulfonate fraction, 3) and those obtained by fermentation of the sugar
fraction.   Cymine  is separated from the condensates removed from the
digester relief system (3) and formic acid, acetic acid  and  furfural
are components of the evaporator condensate (179).

The  first class of liquor products is made by treating the raw liquor
or  evaporating  it  and  bleeding  off  the  concentrate  at  various
consistencies  (40-65  percent)  for sale.  The concentrated liquor of
ammonia base sulfite mills  can  be  used  directly  in  tanning   (3).
Sulfite  spent liquor is also sprayed on gravel roads  (road binder) to
reduce dusting (2)(3).

The lignosulfonates are precipitated from raw  liquor  by  the  Howard
process   (17) .   These materials can be used as oil well drilling mud,
tanning agents, dispersants, and soil improvers.  The precipitates can
be reacted with other chemicals to produce vanillin and other saleable
materials  (175) (172)  such as dispersing and emulsifying  agents,  some
of which are used in dyeing.

Fermentation  products  include ethanol and torula yeast which is used
as an animal and human food supplement  (174).  They are produced  from
the  raw  liquor after the free sulfur dioxide has been steam stripped
and returned to the acid plant.

The only major waste produced in  the  manufacture  of  spent  sulfite
liquor  evaporate  are  the  condensates  which amount to about 6260  1
 (1500 gals.)  for the liquor equivalent of one kkg   (ton)  of  AD  pulp
 (46).   The  combined  condensates are acid, free of suspended matter,
and, if no appreciable carry-over occurs in the  evaporators,  low  in
color.   They  contain considerable BOD5 due to the presence of formic
and acetic acids, alcohols, and aldehydes  (46).  Preneutralization  of
the  liquor effectively reduces the BOD5 range from 43 to 75 kg  (85 to
                             609

-------
                     Table  202


MILLS MANUFACTURING SPENT SULFITE LIQUOR BYPRODUCTS


     Mill Code                Products

     070                      Ethanol
                              Lignin Products

     051                      Torul* Yea^t

     061                      Lignin Products

     402                      Lignin Products

     063                      Evaporate

     052                      Lignin Products

     056                      Evaporate

     066                      Lignin Products
                     610

-------
150 Ib)  per kkg (ton) of AD pulp  to  30  to  35  kg  (60  to  70  Ib)
(46) (44).   It  has  been shown that removal of the volatile materials
from these condensates by steam stripping, chemical  reaction  in  the
vapor  phase, or ty activated carbon can reduce the COD about 75 to 80
percent  (49).   If  the  condensate  is   free   of   carry-over,   a
corresponding  reduction  in  BOD5  will occur.  However, insufficient
markets are available for the formic and acetic acids  that  would  be
produced at the present time.

The  lignosulfonates  are separated from raw or concentrated liquor of
the following composition:

                                          Percent of
                                          Dry Solids

              Lignosulfonic Acid            45-50

              Reducing Sugars -
                Hexoses                     15
                Pentosos                    12

              Other Carbohydrates           15

              Inorganics                     5

This separation is made by  lime  precipitation   (176)  from  the  raw
liquor  or  by  chemical treatment of evaporate  (178).  Effluents from
precipitation  processes   contain   the   wood   sugars   and   other
carbohydrates  responsible  for  a  large  portion  of the BODji of the
liquor, and for this reason such separations  reduce  the  BODJ3  waste
load  only  about 20 percent.  However, since the precipitate contains
most of the color bodies, the process removes over 80 percent of  this
parameter.

There  is  little data available on specific pollutional values of the
effluents from production of marketable  products  from  precipitates.
This  is  because  such effluents are not generally segregated and are
difficult to relate to production.  However, it has been observed that
effluent from the manufacture of vanillin is very high  in  color  and
susceptible to foaming  (172) .

Only  one mill in the U.S. presently produces ethanol and of the three
that once produced torula yeast only  two  are  in  operation.   After
fermentation  the  spent beer from both processes can be evaporated to
produce a substantially sugar-free lignosulfonate solution from  which
other  products  can  be  made.  The condensates produced are lower in
BOD5 than those obtained from raw liquor, ranging from 20 to 25 kg  (40
to  50 Ib) per kkg  (ton) of AD pulp.   Since  ethanol  production  uses
only the hexose sugars, it results in a BOD5 reduction of less than 25
percent.   This  reduction  is  closer  to  50 percent in torula yeast
production which uses both hexose and  pentose  sugars.   Yeast  plant
effluent  ranges  from  12,519 to 28,865 1  (3000 to 5000 gal.) for the
liquor equivalents of yeast cells.  Generally such  effluents  contain
from  1500  to  3500  mg/1  of  BODJ5 and from 250 to 600 mg/1 of total
suspended solids.
                            611

-------
IMPLEMENTATION REQUIREMENTS

Availability of Equipment

Since 1966, when Federal water pollution control  expenditures  began,
various  Federal and private organizations have analyzed the projected
levels of water pollution control activity and their  economic  impact
on the construction and equipment industries.  As a result, a plethora
of  studies  has  been  developed  which  is  related to the levels of
municipal and industrial water pollution control construction and  the
respective   markets   for  waste  water  treatment  equipment.   Less
information is available concerning the actual and anticipated  levels
of expenditure by any specific industry.

In  recent  years, the trend in the waste water equipment industry has
seen the larger firms acquiring smaller companies in order to  broaden
their market coverage.

Figure  123  shows  graphically past expenditures and projected future
outlays for the  construction  of  industrial  waste  water  treatment
facilities,  as  well  as  total water pollution control expenditures.
Obviously, the level of expenditures by industry  is  related  to  the
Federal  compliance schedule.  This will increase until industry is in
compliance with Federal standards.  Once that  occurs,  the  level  of
spending  will return to a level commensurate with the construction of
new  facilities,  replacement  of   existing   facilities,   and   the
construction of advanced waste treatment facilities.

Figure  124 shows past expenditures for and projected future trends in
total sales of waste water treatment equipment and the dollar  amounts
attributable  to  industrial  and municipal sales.  This curve closely
follows the trend shown in Figure 123.

The data in Figures 123 and 124 related to industrial water  pollution
expenditures  include  only  those  costs  external  to the industrial
activity.  Internal process changes made to accomplish water pollution
control are not included.

Recent market studies have projected the  total  available  production
capacity  for water and waste water treatment equipment.  Most of them
have indicated that the level of sales is currently only 30-40 percent
of the total available plant capacity.   Several  major  manufacturers
were  contacted   to verify these figures and indications are that they
are still accurate.  A partial reason for this  overcapacity   is  that
the  demand for equipment has been lower than anticipated.  Production
capacity has increased assuming Federal expenditures  in  accord  with
funds authorized  by Congress and conformance to compliance schedules.

For  the immediate future, increased demands for waste water treatment
equipment can be  absorbed by the  existing  overcapacity.   Long  term
requirements   will   probably  necessitate  expansion  of  production
capacity in various product lines where  the  demand  is   expected  to
increase  dramatically — specifically, advanced treatment systems and
waste solids handling equipment.
                            612

-------
                                                                    ro
                                                                    
-------
                                                                              CO
                                                                              
-------
It should also be noted that  the  capacity  to  produce  waste  water
treatment equipment could be expanded significantly through the use of
independent  metal fabricators as subcontractors.  Even at the present
time independent fabricators are used by some equipment  manufacturers
when  work  loads  are  heavy  and  excessive  shipping  costs make it
desirable to use a fabricator close to the delivery site.

There appear to be no  substantial  geographical  limitations  to  the
distribution  of  waste  water  treatment  equipment  to industry.  In
various areas, certain suppliers may be more successful  than  others;
however,  this  seems  to  be related more to the effectiveness of the
sales  activities  than  to  geographical  limitation.   The  use   of
independent metal fabricators as subcontractors to manufacture certain
pieces of equipment further reduced geographical limitations.

Equipment delivery schedules may vary substantially depending upon the
manufacturer,  the  current  demand,  and  the  specific  equipment in
question.  Obviously, the greater the demand or the  more  specialized
the equipment, the greater the delivery time.


Availability of Construction Manpower

After  consultation with the Associated General Contractors of America
and other industry groups,  it  has  been  concluded  that  sufficient
manpower  exists  to construct any required treatment facilities.  The
Bureau of Labor Statistics  has  been  requested  to  conduct  another
study.

Construction Cost Index

The  most  detailed study and careful analysis of cost trends in prior
years still leave much to be desired in predicting construction  costs
through the next ten years.

During  the  years 1955 through 1965 there was a very consistent price
rise.  The Engineering News Record  (ENR) Construction  Cost  Index  in
January  1955  was  644.  With slight deviations from a straight line,
costs rose at a steady rate to an index of 988 in December 1965.  This
represented an increased cost of 53«U percent over an 11  year  period
of approximately five percent per year.

The  first  six  months  of  1966  saw an increase of 6.6 percent then
leveled off abruptly cnly to rise sharply again in 1967 at a  rate  of
6.2 percent, then increasing to 9.4 percent in 1968.

The increase in costs continued to rise at about 10.5 percent per year
through   1970.    During   1971,   construction  costs  rose  at  the
unprecedented rate of 15.7 percent primarily due to  larger  increases
in labor rates.

With  the  application of federal wage and price controls in 1972, the
rate of increase dropped to 8.6 percent for the year and continued  at
the  same  rate  during  the first six months of 1973.  The cost index
                             615

-------
curve began to level off during the latter part of 1973  resulting  in
an increase of 6.8 percent for the year.

Cost  predictions for extension of ENR Cost Index are confused at this
time.  ENR in the 1974 first Quarterly Cost Roundup (March  21,  1974)
stated,  "Predicting  cost  trends  is always difficult, but this year
contractors face what is perhaps the  most  bewildering  period  in  a
quarter century."

The  commentary  continued  with the statement "The industry is facing
some of the sharpest escalations in costs in recent time  —  material
as well as labor".

With  the  termination  of  price  controls,  manufacturers are making
substantial price boosts to cover proposed  expansions  for  increased
capacity as well as actual increased production costs.

These  developments have caused ENR to revise its predictions for 1974
increase in Cost Index.  In December the predicted increase  12/73  to
12/74 was +4.0% for the Building Cost Index and +5.0% for Construction
Cost  Index.  In ENR, March 21, 1974 issue, the prediction was revised
to an increase 12/73 to 12/74 of +6.8% for  Building  Cost  Index  and
+7.5%  for  Construction  Cost  Index.   ENR on June 20, 1974, further
revised 1974 predicted Building  Cost  Index  increase  to  10.3%  and
Construction Cost Index to 10.0%.

The  strong  inflationary  forces now facing the United States and the
rest of the world are the worst hazard to cost predictions.  With what
has previously been considered a normal rate of inflation, it could be
anticipated that expansion of industrial capacity would help to  level
off current sharp price increases.

In  spite of the skyrocketing cost increases during the second quarter
of 1974, the long range outlook for the Construction Cost Index  would
seem  to  be  closer  to an annual increase of 8 percent, the bases on
which Figure 125 was drawn.  Developments in the industry may  require
adjustments  up  or  down  from  the  projected cost index for current
program costs in any particular year.


Land Requirements

Land requirements for a number of external treatment systems have been
evaluated and are shown in Figure 126 for  a  range  of  plant  sizes.
Incineration  or  off-site  disposal  of  dewatered  sludge  has  been
assumed.  Should sludge lagoons be used on-site, additional land would
be required.  It should be pointed out that the  costs  of  land  were
included  in  the  total costs per subcategory presented previously in
this section.


Time Required to construct Treatment  Facilities

The  time   required  to  construct  primary  and  secondary    effluent
treatment facilities has been estimated for a range of  plant sizes and
                           616

-------
                                                             O X
                      o
                                   \
I       1
                 §      S
§
o
                                                          LO  rx:
                                                          CM
                                                             3SO
                                                          cu  ULJCJ
                                                          $-  as
                                                          •i-  Z —
                                                          u.  — i—
                                                             CCCJ
                                                             — CO
                                                             CDZ
                                                             ZC3
                                                             UJC3
                                               10
                                               S:
                                               O
                                               r-
                                               3
X3QNI  iSQO  NOIiOfUUSNOO
     617

-------
Figure 126
MINIMUM AREA REQUIRED FOR
WASTEWATER TREATMENT
*SLUOGE IS LANOFILLED
5.000
4,000
3.OOO
1,000
1,000
900
too
700
too
500
400
a oo
200
CO
cc.
<_>
•a:
IOO
' 90
«t *0
oe T0
"*• so
30
40
3O
20
10
*
8
6
a
4
3
Z




—
~
:
— ***
^
^i***
=/
£-
—
— *****
— A X
— %***
/*
=s"
- */
-
~
\ Xt i i 1 1 1
t/
/
$
f
$
A
^
/ '^
/
JF^
*
x
J^
AX^
A^
A^X
S*
^V>

1 1 II 1 1 II
* NATURAL
STABILIZATION



** AERATED
^ STABILIZATION






ACTIVATED
SLUDGE

v PRIMARY
j>* CLARIFICATION
*£r
«•
*%^"
%



2 3 4 6 6 T i 9 10 2O JO 40 50 6O 80 100
7306824 FLOW - MGD FIGURE 4
618

-------
for two different project contract possibilities.  The treatment plant
sizes  evaluated  were under 5 MGD, 5 to 20 MGD, and over 50 MGD.  The
contract  possibilities  evaluated  were  for  the   engineering   and
construction to be separate or on a turnkey basis.

A  small  mill  with relatively small effluent volume (see Figure 127)
could have its primary and secondary treatment facilities in operation
in 2.5 years if the contract  was  handled  on  a  turnkey  basis  The
majority  of  the  effluent treatment facilities handled with separate
engineering and construction contracts,  plus  the  medium  and  large
mills  handled  on  a  turnkey basis, would be completed in 2.5 to 4.5
years.
                             619

-------
620

-------
                              SECTION IX


   BEST PRACTICABLE CONTROL TECHNOLOGY CURRENTLY AVAILABLE (BPCTCA)

INTRODUCTION

The effluent limitations which must  be  achieved  by  July  1,  1977,
specify the degree of effluent reduction attainable through the appli-
cation of the BPCTCA, which is generally based upon the average of the
best   existing   performance   by   plants   within   the  industrial
subcategories as discussed  in  detail  below.   In  addition  to  the
factors mentioned above, consideration was given to:

    a.   the total cost of application of technology  in  relation  to
         the  effluent  reduction  benefits  to  be achieved from such
         application, including energy requirements.

    b.   the engineering aspects of the application of  various  types
         of control techniques;

    c.   the size and age of mills

    d.   process changes;

    e.   non-water quality environmental impact.

Best Practicable Control  Technology  Currently  Available  emphasizes
treatment  facilities  at  the  end  of  a  manufacturing process, but
includes the control technologies within the process itself  when  the
latter  are  considered  to  be  normal  or  common practice within an
industry.

A further consideration is the  degree  of  economic  feasibility  and
engineering  reliability  which must be established for the technology
to be "currently available."  As a result of  demonstration  projects,
pilot  plants,  and  general  use,  there  must exist a high degree of
confidence in the  engineering  and  economic  practicability  of  the
technology at the time of commencement of construction or installation
of the control facilities.


EFFLUENT REDUCTION ATTAINABLE THROUGH THE APPLICATION OF BPCTCA

Based  upon  the  information available to the Agency, a determination
has been made that the point source  discharge  limitations  for  each
identified  pollutant,  as shown in Table 203, can be attained through
the application of the Best Practicable Pollution  Control  Technology
Currently Available,

The  average  of daily values for 30 consective days should not exceed
the maximum 30 day average limitations shown.  The value for  one  day
should  not  exceed the daily maximum limitations shown in this table.
The limitations shown are in kilograms of pollutant per metric ton  of
                               621

-------
                                     TABLE 203

                                     BPCTCA
                    Effluent Limations In kg/kkg(lbs/ton)
Subcategory
Maximum 30 Day Average
Maximum Da
Dissolving Kraft
Market Kraft
BCT Kraft
Fine Kraft
Papergrade Sulfite
Market Sulfite
Low Alpha
 Dissolving Sulfite
High Alpha
 Dissolving Sulfite
GW-Chemi-Mechanical
GW-Thermo-Mechanical
GW-CMN Papers
GW-Fine Papers
Soda
Deink
NI Fine Papers
NI Tissue Papers
NI Tissue
 Papers (FWP)
BODS
13
7
6
5
19
20
22
26
7
5
4
4
7
9
4
6
6
.35 (
.9 i
26
15
.95 (13
.7 (
.6 (
11
39
.85 (41
.35 (44
.3 (52
.05 (14
.0
.45
.0
10
n
8
.2 (14
.45
.25
(18
( 8
.25 (12
.4
(12
.7
.8
.9
.4
.2
19
15
15
12
24
.7) 26
.7) 27
.6) 33
.1) 10
.0
.9
.0
9
7
7
.4) 13
.9) 14
.5) 5
.5) 5
.8) 9
TSS
.3 (38.
.85
.1
.4
.0
31.
30.
24.
48.
.65(53.
.4 (54.
.65(67.
.45(20.
.2 (18.
.9
.3
M5.
14.
.4 (26.
.2
.9
.0
(28.
(11.
(10.
.45(18

6)
7)
2)
8)
0)
3)
8)
3)
9)
4)
8!
6)
8)
4)
8)
0)
9)
BODS
25.65 (51
15.2 (30
13.35 (26
10.95 (21
37.6 (75
40.0 (80
42.9 (85
52.3 (104
13.5 27
9.6 19
8.55 17
7.7 15
TSS
.3) 35.85
.4 29.4
.7 28.05
.9 23.0
.2 44.6

71.7)
58.8
56.1
46.0
89.2)
.0) 49.5 (99.0)
.8) 50.85(101.7)
.6) 62.5 ('
125.0)
.0) 19.45 (38.9
.2) 17.05 (34.1
.1 14.7
.4 13.5
(29.4
27.0
13.85 (27.7) 24.8 (49.7)
18.15 (36.3) 26.35 (52.7)
8.2 (16.4 11.0
11.4 (22.8) 10.25
12.3 (24.6) 17.6
(22.0)
(20.5)
35.2]
            pH for all subcategories shall be within the range 5.0 to 9.0.
 Subcategory
 GW:Chemi-mechanical
 GW-Thermo-mechanical
 GWrCMN Papers
 GW-.Fine Papers
                                    Zinc*
   Maximum 30 Day Average
    kg/kkg(1bs/ton)
0.06 (0.12)
0.05
0.05
0.048
0.10)
0.10)
,0.096)
   Maximum Day
 kg/kkg(lbs/ton)
0.12 (0.24)
0.105
0.105
0.095
0.21
0.21
0.19



              *Applicable only to mills  using  zinc hydrosulfite,
                                   622

-------
production  (pounds  of  pollutant  per ton of production).  Effluents
should always be within the pH range of 5.0 to 9.0.

Production in kkg  (tons) is defined as annual  tonnage  produced  from
pulp  dryers  (in  the  case  of  market pulp) and paper machines (for
paper/board)  divided by the number of production days in the  12-month
period.  Pulp production is to be corrected, if necessary, to the "air
dry" moisture basis.

Allowance for Wet Woodyard Operations

Irrespective of the wood pulping subcategories, the allowance for BOD5
and TSS shown below can be added to the above effluent limitations for
mills  with  wet  woodyard  operations.  Application of the additional
allowance shall be made only for that  portion  of  the  total  mill's
production attributable to the use of logs, specifically excluding the
portion of total production attributable to purchased chips, purchased
pulp, or purchased waste paper.

The  woodyard  operations  which  qualify  for  this allowance are the
following:

          1.  Log ponds used for defreezing logs prior to
              processing.

          2.  Log transport and defreeze flumes.

          3.  Log washing.

          4.  Wet debarking operations.

For mills using any or all of the  above  operations,  the  additional
allowances for BOBji and TSS are shown below:

                         Max 30 day             Max 30 day
                          Average                Average
                     kg/kkg (Ibs/ton)      kg/kkg  fibs/ton)

        BOD5          0.5      (1.0)          0.9     (1.8)
        TSS           0.75     (1.5)          1.6     (3.2)
IDENTIFICATION   OF  BEST  PRACTICABLE  CONTROL  TECHNOLOGY  CURRENTLY
AVAILABLE

Best Practicable Control Technology Currently Available  varies  among
the  subcategories.   Internal  technologies  are  shown in Tables 132
through 148 of section VIII, and the external technologies  are  shown
in  Table  149.   The selected external technology suggested as BPCTCA
and  the  internal  technologies  employed  by  the  mills   in   each
subcategory are discussed in detail in Section VII and VIII.

It  is  emphasized  here that these technologies are not of themselves
required.  Due to economic, space, or other factors,  many  mills  may
                               623

-------
choose  to  use  alternative technologies.  Conversely,  some mills may
choose  technologies  in  addition  to  those  shown.   For   example,
biological  treatment  is not included for mills in the non-integrated
tissue subcategory.  The reason is that many of these mills with  only
primary  treatment  have  achieved  equal  or better results than some
others which also use biological treatment.  A  specific  mill  within
these  subcategories  may, howeven, choose biological treatment as the
most effective method of meeting the limitations.
RATIONALE FOR THE SELECTION OF  BEST  PRACTICABLE  CONTROL  TECHNOLOGY
CURRENTLY AVAILABLE

Age and Size of Equipment and Facilities

There  is  a  wide  range,  in  both  size and age, among mills in the
subcategories studied.  However, internal  operations  of  most  older
mills  have  been  upgraded, and most of these mills currently operate
very efficiently.  The technology for upgrading of older mills is well
known within a given subcategory.  Studies have also shown that  waste
treatment plant performance does not relate to mill size.  There is no
significant  variation in either the waste water characteristics or in
the waste water loading rates, in  kg/kkg  (Ib/ton),  among  mills  of
varying  sizes.   Figures  are  presented  in  Section  IV showing the
insignificant relationships between raw waste load and mill size.

Processes Employed

All mills within each sufccategory studied use the same  basic  produc-
tion  processes.   Although  there  are  deviations  in  equipment and
production procedures, these deviations do not significantly alter the
characteristics of the wastewater generated within  each  subcategory.
Treatability of these wastes is similar.

Application of best practicable control technology currently available
does  not  require  major changes in existing industrial processes for
the  subcategories  studied.   Incorporation  of  additional  systems,
treatment  processes, and control measures can be accomplished in most
cases through changes in piping, and through modifications of existing
equipment.  Such alterations can be carried  out  at  mills  within  a
given subcategory.

The  technology  to  achieve  these  effluent limitations is practiced
within the  subcategories  under  study.   The  concepts  are  proven,
available   for  implementation,  and  applicable  to  the  wastes  in
question.  The waste treatment techniques  are  also  broadly  applied
within   many   other   industries.    The  technology  required  will
necessitate improved monitoring  of  waste  discharges  and  of  waste
treatment  components  on the part of many mills, and may require more
extensive training of personnel in the operation  and  maintenance  of
waste  treatment  facilities.  However, these procedures are currently
practiced in  many  mills  and  are  common  practice  in  many  other
industries.
                              624

-------
Non-Water Quality Environmental Impact

The  technology  cited  will  not  create  any significant increase in
odors, or in noise  levels  beyond  those  observed  in  well-designed
municipal  waste  water  treatment  systems  which currently are being
approved by the  federal  government  for  construction  in  populated
areas.   Further,  no hazardous chemicals are required as part of this
technology,

Cost  of  Application  in  Relation  to  Effluent  Reduction  Benefits
(Including Energy Requirements}

The  total  project  costs of BPCTCA reflect an increase of production
expenses as shown in Tables 151 through 184 of  Section  VTII.   These
increases  reflect both all internal mill and external waste treatment
improvements.  They are based on 360 days of production per year.   It
should  be  emphasized,  however, that most mills have already carried
out many of these improvements.  Consequently, their  increased  costs
would  be  less  than those shown.  The energy requirements associated
with the application of pollution control technologies  are  described
in  Section  VIII.   The total estimated cost of BPCTCA for all of the
mills is $1.6 billion with  associated  total  effluent  reduction  of
approximately 4,535 kkg (5,000 tons) per day of BOD5.


RATIONALE FOR SELECTION OF EFFLUENT LIMITATIONS

The  rationale  used  in developing the effluent limitations for BOD5,
TSS, and zinc (groundwood subcategories only), is discussed below  for
each  of  the  sutcategories.  Specifically identified are the methods
used to select the limitations for the   maximum  30  consecutive  day
average  and  the daily maximum value for BOD5 and TSS.  To the extent
possible, the effluent limitations for both parameters are based on 12
to 24 months of data obtained from nearly 200 mills during this study.
The procedure for  selecting  the  mills  in  each  subcategory  whose
external  pollution  control  facilities  demonstrate  a high level of
performance is also described in this section.

The development of the effluent limitations for each  subcategory  are
discussed  in  detail in the following paragraphs.  The basic approach
used in determining the effluent limitations involved  the  following:
(1)  the  establishment  of  raw waste loads for each subcategory  (see
Section V) ;  (2)  determination of external treatment performance of the
external  treatment  facilities  at   mills   within   each   of   the
subcategories  (See Section VII).  Where the available data permitted,
the performance was measured by the absolute values of the quality  of
the effluents from the external treatment facilities.  Where data were
not  available, data were incomplete, or the treatment facilities were
inadequate for mills within a subcategory, performance was based  upon
similar   subcategories   using  similar  treatment  technologies  and
treating similar waste waters, as discussed in detail below;  and  (3)
establishment  of  the  effluent limitations using the raw waste loads
and external treatment performance as identified in the above efforts.
Specifically, the average effluent flow volume as determined for  each
subcategory  in  Section  V was used with the appropriate BODjj and TSS


                              625

-------
concentrations  which  were  determined  through   analysis   of   the
relationship   between   influent  BOD5  and  effluent  BOD5  and  TSS
concentrations  as  presently  being  achieved  by  mills  using  well
designed  and  operated treatment facilities representative of BPCTCA.
The waste water flow (as well as the raw  waste  BOD5)   indicates  the
extent  of  inplant  control  measures  in  use  at  mills  within the
subcategories,  and  use  of  the  average  flow  per  subcategory  in
developing  the  effluent  limitations  therefore  reflects a level of
inplant  waste  water  management  technologies  which  are   commonly
practiced.   By  using  the  average  flow for each subcategory, mills
using a normal level of inplant control measures and well designed and
operated external treatment will  be  able  to  achieve  the  effluent
limitations  through the use of BPCTCA.  It should be pointed out that
the flow, BODS^ and TSS raw waste loads that were developed in Section
V were also used in the development of the costs in Section VIII.

The determination of the BOD5 and TSS concentrations involved thorough
evaluations of the external treatment systems at mills within each  of
the subcategories.  In several cases, mills achieved high quality BODj>
concentrations  in  their  effluents while the TSS concentrations were
very poor.  In nearly every case, the poor performance on TSS  can  be
related  directly to poor design and operation of the facilities  (i.e.
the design was based solely on BODJ5  removal  without  regard  to  TSS
removal).

The effluent limitations were developed en an annual average basis and
then multiplied by the variability factors developed in section VII to
determine  the maximum 30 consecutive day and maximum day limitations.
The variability factors used in determining the  effluent  limitations
are  shown  in Table 204.  The flow values developed in Section V were
based upon 12 tc 24 months of daily data or more when  available.   In
addition,  the  final effluent concentrations represent averages of 12
to 24 months or more of daily data for the same data  periods  as  the
raw waste load data for each mill.  Table 205 presents the flow, BOD5,
and  TSS  values  and  the  corresponding  annual average BOD5 and TSS
values which were used as the basis of the  effluent  limitations  for
each  of  the respective subcategories.  It should again be emphasized
that  mill  sampling,  flow  measurement,  and  laboratory  analytical
techniques were thoroughly evaluated to assure that the mill data used
in  the development of the effluent limitations was valid.  Because of
this, some mill data was eliminated from consideration due to  various
deficiencies.   For  instance,  a  number of mills measure TSS by non-
standard methods using a paper filter  rather  than  by  the  standard
procedure   of  using  a  glass  fiber  filter.   The  two  analytical
procedures yield widely different results and  no  correlation  exists
between  the  two tests.  TSS data as measured by non-standard methods
were  thereby  not  used  in  determining  effluent  limitations.   In
addition,  the operating procedures of the treatment facilities in use
by the best mills were examined to determine the adequacy of operation
and the impact upon final effluent characteristics.  For  those  mills
with  adequate  designed treatment facilities representative of BPCTCA
and inadequate operating procedures during all or  part  of  the  time
(i.e.   shutting   down  aerators  during  winter  months),  the  data
representing the inadequate operations was not used in determining the
effluent limitations.
                               626

-------
                    Table 204
          BPCTCA Variability Factors
 Bleached Kraft Soda, Groundwood, Sulfite,  Deink,
NI Fine Papers, and NI Tissue (fwp)  Subcategories
Parameter
  BOD5_
  TSS
        Maximum 30 Days
             1.78
             1.82
                                              Maximum Day
                                                 3.42
                                                 3.38
Parameter
  TSS
NI Tissue Papers Subcategory

        Maximum 30 Days
             1.79
             1.76
                                              Maximum Day
                                                 3.25
                                                 3.60
                    627

-------
    00


    O
           0)
           01
           to
           S-
           O)
-M


 CU
LO  LU
o  is
C\J  _1
 CO
    o

    o
    Q.
    02
             GO
                 Ol
                 01
                       CSJ
                                                   Lr>i—
                                                             *
                                                             O LO
                       i— <£>VO«*COLOCOLOLOOCOOO
                                                                       *
                                                                   COP^OO
                                                                                 X
                                                                                 OJ
                                                                                 (U
                                                                                 OJ
                                                                       
                                                                                 3
                 i.
                 o
                 01
                 (1)
                4->
                 rtJ
                 u
                -Q


•
to
tO +J
•r- _i£
:D s:




i—
o
CO



cu
c
•r—
U. r




Q_
5:
a o



cu
Q- C
g^ .p—
t— u_




^^
2:
o
i.
cu
Q-4->
(O -^
O- S
• • • •
CU CU

•r— •( —


(0 -C
x: Q.
Q-r—
f— ^^
^C \x
-C C



cu

• ^
Ll-

CU
3

to
•r~
h-
U.
CU
3
(/)
to
'r-
t—
CU
o

to
•r-
(/)

-------
The achievability of the effluent limitations was examined and it  was
determined  that  a  large  number  of mills presently comply with the
effluent limitations.  Compliance with the  effluent  limitations  was
examined  for  mills for which adequate data (one year)  were available
and for a mill to be considered in compliance,  the mill data  did  not
exceed  any  of  the  four  limitations  ((1) maximum 30 day BOD5_, (2)
maximum daily BOD5,  (3)  maximum 30 day TSS, and (4)  maximum daily TSS)
within the year of data.  A number of mills were determined to  be  in
non-compliance  with  the  effluent  limitations  but  this  does  not
necessarily mean that those mills will have  difficulty  in  achieving
the  effluent  limitations.  Exceeding any one of the four limitations
for one day or one month was counted as  non-compliance  and  in  many
cases,  the excursions in the data were determined to be the result of
such items as sampling or analysis or operating problems (i.e.,  power
outage, aerators failure),  A total of 25 mills complied with both the
daily  maximum BOD5 and the maximum 30 day BOD5_ limitations.  Of these
25 mills, 12 mills complied with both the daily maximum  TSS  and  the
maximum  30  day TSS limitations; however, TSS data were not available
for six of the 25 mills.  Of the seven of the 25 mills for  which  TSS
data  were  available,  three  mills  complied  with  one  of  the TSS
limitations.


Bleached Kraft Sufccategories

Extensive effluent data were available for  32  bleached  kraft  mills
that  have biological treatment facilities and the data are summarized
for the 32 mills in Table 71 in Section VII.   Of  the  32  mills,  22
mills  were  determined  to be best mills as discussed in Section VII.
The data for the best mills in the bleached  kraft  subcategories  are
summarized  in  Table  206  which  presents by subcategory the type of
treatment  system  in  use  at  each  mill,   the   raw   waste   BOD5
concentration,  and  final  effluent  flow, BOD5, and TSS values.  The
BOD5 and TSS  values  are  presented  in  both  kg/kkg  (Ibs/ton)  and
concentrations.  Details of the type of treatment system in use by the
best mills are shown in Figure 44 in Section VII and are summarized in
Table 207.

In  the bleached kraft sukcategories, 12 mills were in compliance with
both the daily maximum BOD5 and  the  maximum  30  day  BOD5  effluent
limitations.   Of  these  12  mills, five mills complied with both the
maximum 30 day TSS and the daily  maximum  TSS  limitations;  however,
data  were unavailable for three of the 12 mills.  Two of the 12 mills
complied with the daily maximum TSS but exceeded the  maximum  30  day
TSS limitations, and two mills exceeded both the daily maximum TSS and
the  maximum  30  day  TSS  limitations.   In  addition, 7 other mills
complied with at least one of the limitations for BODJ3 and TSS.

              Bleached Kraft Dissolving Pulp Subcategory

Two  of  the  three  mills  in  the  bleached  kraft  dissolving  pulp
subcategory  have  biological treatment facilities and both mills were
determined to be best mills.  As shown in Table 206, the average final
effluent concentrations for BODS and TSS for the two best mills are 31
                                629

-------
                     U> '
                     CO •
                    LO



                    CO
                        r— LO   CO
                        CM CM   CM
                                                                                               LO
                                         CM CO VO LO    i— LO    ^1-
                                       I O ^i" CO CM  I VO tO    IO












CO
o
1— 1
1—
CO
t — i
C£
CO LU
LU h-
I-H O
fV ^£
o ct
CJ3 ^
(/)
-Q
O)
00 ^.
OO -*:
1 ""N^
r™ ^x.
•4™^ O^
CT ^s
«^^^~x ^•—^
r— IO CTt
• • •
vo co cr>
v3"^i- d-


i— 00 O
CO •— O

 10 — I
3oo *^«
to (O O O)
OL 3 CO E

^1- to to
r^ cn co
i— CM CM
^rf-^
'— O
LO •
• CO
^'>n»


CO LO
CO LO





vo r~
CM r-






^— x^-^
CM
• CO
cn •
LO
vo cn
«d- CM






CO CO
co co
< <
i i
0 CO
01


VO O
r-» CM
CM i—
^-^
co
•
0



CM
LO



LO
•
CO







**— >.
LO

^s»

CO
co














CO
cn

                                                                      -O"— CO «*•    VD CM    i—

                                                                          CO f— O  I  IO CM    VC
                                                                       co i
                                                                       O VO I""- CM    CO t—    i—
                                                                         *   •   •   *  |    ••      •

                                                                       r~ vo to to    r*~ vo    co
                                                                       CO CM CM r- CO CM CO    CM
                                                                    VOCMCM^J-LOOOVDCO
                                                                                               <£>
                                                                                               CO
                                                                                                 •
                                                                                               co
                                                                    co
                                                                    a.
                                                                   co
                                                                   o_
                                                                     I
                                                                    CQDQCQCQCQCOCQOQ
                                                                    COCOCOCOCOCOCOCO
                                                                    CMCMCMi— i— CMCOCM
                                                                                               cn
                                                                                               co
                                                                                               CM
   4J

    o>
i—  3
 IO r-
 C »*-
1- t- i
IO
cn
          a>
                10

               ±£

                cn
                c
                o

                to
               •i—
               o
i— LO


IO O
LO VO
           O CM
           CO LO
           CM CM
                     I*~ CO
                     CM O
CO



LO





CM
                     
                     40

                     cu

                    •=c
                              10
                                       4->
                                        i— r— i
                                       O O i— CMi
                                                                                   •— COCM
CO
  •


CO



LO
                                                                  cu
                                                                  01
                                                                  10

                                                                  CD
                                  630

-------
                            

                             CO
                            J3



                             01
                            ^
                            J*


                             O>
                                                       ^-    OJ CMi—
                                                          i — ovoo
                                           COr—
    co
     *
   • co
                                                 
              •     •
            ro   co
                                              i
                                             CQ
                                             CO
                                                O-    0-
                                                 I      I  CO
                                                CQ CQ CQ O_
                                                co co co  i
CQ
co
                                          -j-----.--«-'*.^-**.'1l.'=l.*3.

                                           1   •   I   I  I  I  I  I  I  I

                                          OOOtJOOOOOO
                                          CVCMCMCMCMi— CMi— CVICO
                                                                           co
                                                                           ^1-
                                                                           CM
                  CO
                  CM
CO
(U
a>
to
i.

ro
                        a>
                              03
                                    CO
                                    i.
                                    (U
                                    Q.
                                    03
                                   a_

                                    (U
                                                                                    en
                                                                              ^1-    CO
                                                                              CO    CO
                                                                                    CM
                                                                                    VO
                                                                                  E
                                                                              «O    ro
                                         cr>co vovovot— ^.^coo
                                         •— o roovooooi— CM
                                                                                 OJ
                                                                                 >
                                                                                                •o
                                                                                                3
                                                                                                o
                                                                                             o
                                                                                             z
                                                                                             *
                                                                                          IO
                                           631

-------
                                in

                                to
      in

      CM
            CM



            O
                                                       a
            O 01


              CM
               a


              ^£
                                           o
                                           o
                                           CM
                                           s
                             O
                             CO
                                                          00
                                                          CO

                                                     I     VO
                                                                              to     i    en
                                                                                         CM
            CQ
            vO
   

   ai o3
           00
           r-»
                                                                   i     i      i      i     i     t
CM
•P
*f~
TJ
CL
O CJ
^
a

-y:


o
oo
to
o

j*^
CM



O
in
CO
to
CM
<*




en
to
CM
to
en
O




o
in
«3"
CO
CO
co
r™



LO

r^
en
ro
CM
CO



o

^f
o
co
to
^~



o
ro
Cf>
en
00
^*
to



o
o
to
^
*
^J-
CM



CM
^^
CO
in

LO
r"*



CM
CM
to

ro
in
CNJ



o
rv.
^f
LO
^*
en
^—



CO
10
CM
CM

O




«£
y*


g





CM
CO


«o
en




o
in
CO
to
CM
^




in
in
i —
CM
O
co
r^
CO



o
0
LO

CO
o
CM

                    g
r—    CM

O    O
      fO

      O
      •a-
      o
in
o
to
o
en
o
                                                                              o    •—
                                                                                                           to
                                                632

-------
                in
                Q.
                                              CTl    CM
                  5i

                  CM
                                                                         o
                                                                         CO-
                                                               I     I    CO
^ l/>


^•2


§£

*>- «/»

5u£
CM .«> i-
        T3
         0)
Sg^.
n> 4-> L.  .
0)
         c
         O
        o
              CO

              CO
                                             o
                                             o
                                             CTl
                                       ro   CM
                                               O
                                               O
                                               CO
                                                       o
                                                       CM
                                                       a>
                                                       in

                                                       co
o

§
o
in
CM
                                                               LO

                                                               vo
o   o
in   o
CTl   I^
   •— o
   at 
-------
mg/1 and 39.5 mg/1, respectively.   The effluent limitations were based
upon the following values:

             Flow     241 kl/kkg (57.8 kgal/ton)
             BOB5     31 mg/1
             TSS      44 mg/1

The above BOD_5 concentration is the average of the best mills  in  the
dissolving kraft subcategory.  Since some mills have been experiencing
difficulties  in  achieving  low  levels of TSS and the TSS value from
mill 108 is relatively close to the average for all of the best  mills
in  the  bleached kraft sutcategories, the TSS concentration from mill
108 was used.  The above flow, BOD5,  and  TSS  values  were  used  to
compute  the  annual  average BOD5 and TSS values used as the basis of
the effluent limitations.  The annual average values  were  multiplied
by  the  variability  factors  presented  in  Table  204  in  order to
determine the maximum 30 consecutive days  and  maximum  day  effluent
limitations.

Extensive  TSS data were not available to determine compliance for one
of the mills, and  of  the  two  best  mills  in  the  bleached  kraft
dissolving  pulp  subcategory  both  have  been  determined  to  be in
compliance with the daily maximum BOD5 and 30  day  average  BOD5  the
other  mill  demonstrated  compliance  with  the  maximum  30  day TSS
limitation and only exceeded the daily maximum limitation on  one  day
out of 150 days of sampling data.

               Bleached Kraft Market Pulp Subcategory

Four  of the eight mills in the bleached kraft market pulp subcategory
have biological treatment facilities and data were available for three
of the four mills.  As discussed in Section  VII,  two  of  the  three
mills  were  determined  to be best mills.  As shown in Table 206, the
average final effluent BOD5 and TSS concentrations for  the  two  best
mills were 18.5 mg/1 and 23 mg/1,  respectively.  The average raw waste
BOD5  concentration for the two best mills was 198 mg/1 which is below
the average subcategory BOD5 raw waste concentration of 268 mg/1.  The
BOD5 effluent limitation was therefore based  upon  mill  114's  final
effluent concentration of 26 mg/1 which takes into account differences
in the BOD5 raw waste load.  The raw waste BOD5 concentration for mill
114  was  276  mg/1 which is just above the subcategory average of 268
mg/1.

The average final effluent TSS concentration for the best mills was 23
mg/1 as shown in Table 206.  However, the TSS effluent limitation  was
based upon 51 mg/1 because of the difficulty that some mills have been
experiencing in achieving low levels of TSS.  The value of 51 mg/1 was
derived from the average final effluent TSS concentration for the best
mills in all four bleached subcategories which use either ASB's or A's
without  extensive  post storage ponds as shown in Table 75 in Section
VII.  The analysis in Section VII of the  effluent  levels  associated
with  the  type  of  treatment facility showed that final effluent TSS
concentrations were lower for mills using ASB's  or  A's  followed  by
post storage ponds than for mills using only ASB's or A's.  Since some
mills  may  not  have the land available necessary for installation of
                              634

-------
post storage ponds, the final effluent TSS value was  based  upon  the
capabilities of mills using only ASB's or A's,

The basis for the effluent limitations are therefore the following:

             Flow:   171 kl/kkg  (41.0 kgal/ton)
             BOD5:   26 mg/1
             TSS:    51 mg/1

The  annual  average  BODJ5 and TSS values as determined from the above
were multiplied by the variability factors presented in Table  204  to
determine  the  maximum  30  consecutive  day and maximum day effluent
limitations.

Of the two best mills in the bleached kraft market  pulp  subcategory,
both were determined to be in compliance with the maximum 30 day BOD5,
the  daily maximum BOD5, the maximum 30 day TSS, and the daily maximum
TSS  (except for one day out of 194 sampling days for one of the mills)
limitations.

                Bleached Kraft BCT Papers Subcategory

As shown in Table 206, the average BOD5 and TSS concentrations for the
eight best mills in the bleached kraft BCT papers subcategory were  26
mg/1  and  54.5  mg/1,  respectively.   The  average  BOD5  raw  waste
concentration for the best mills was 239 mg/1 which is  slightly  less
than  the average for the subcategory of 269 mg/1.  The raw waste BOD5_
concentrations of the best  mills  and  the  subcategory  average  are
relatively  close and because the final effluent concentration is more
impacted by  the  treatment  facility  than  the  raw  waste  BOD5_  as
discussed  in  Section  VII, no adjustments in the final effluent BODJ5
value were determined to be  necessary.   For  example,  mill  138  is
achieving  a  final  effluent BOD5_ of 28 mg/1 with a raw waste BODjj of
375 mg/1.  Moreover, the average raw waste flow for the best mills  is
151  kl/kkg  (36.3  kgal/ton) which is nearly egual to the subcategory
raw waste flow of 151 kl/kkg (36.2 kgal/ton).

The average TSS concentration of the best mills was used as the  basis
of the TSS effluent limitations  and is considered conservative because
the  TSS  value  from mill 109 was included in the average even though
the  treatment  system,  as  discussed  in  Section  VII,  had  design
deficiencies relating to TSS reduction.

The basis for the effluent limitations are therefore the following:

            Flow:   151 kl/kkg  (36.2 kgal/ton)
            BOD5:   26 mg/1
            TSS:    55 mg/1

The  annual  average  BOD5 and TSS values as determined from the above
values were multiplied by the variability  factors  in  Table  204  in
order  to  determine  the  maximum  30  day  and  maximum day effluent
limitations.
                            635

-------
In the bleached kraft BCT papers subcategory, four of the  eight  best
mills complied with the daily maximum BOD5 and TSS maximum 30 day BOD5
limitations.   Of  these  four mills, two complied with both the daily
maximum TSS and the maximum 30 day limitations; however,  one  of  the
four  mills  did not have TSS data available, and one mill of the four
complied with the maximum 30 day TSS but exceeded  the  daily  maximum
TSS  on  only  one day.  In addition, one other mill complied with the
daily maximum BOD5, the daily maximum TSS,  the  maximum  30  day  TSS
limitations,  but exceeded the maximum 30 day BOD5 limitation due to a
two week period of unusually high values.

               Bleached Kraft Fine Papers Subcategory

As shown in Table 206, the average BOD5 and TSS concentrations for the
ten of the eleven best mills  (excluding  mill  112)   in  the  bleached
kraft  fine papers subcategory were 24 mg/1 and 49 mg/1, respectively.
The average BOD5 raw waste load for the ten best mills  was  243  mg/1
which is nearly equal to the subcategory average of 251 mg/1.  The TSS
effluent   limitations   were  based  upon  51  mg/1  instead  of  the
subcategory average of 49 mg/1 because of the same  reasons  given  in
the above bleached kraft market pulp subcategory discussion.

The basis for the effluent limitations are therefore the following:

           Flow:   133 kl/kkg  (31.8 kgal/ton)
           BOD5:   24 mg/1
           TSS:    51 mg/1

The  annual  average  BOD5 and TSS values as determined from the above
values were multiplied by the variability  factors  in  Table  204  to
determine  the  maximum  30  consecutive  day and maximum day effluent
limitations.

In the bleached kraft fine papers subcategory, six of the eleven  best
mills complied with both the daily maximum BOD5_ and the maximum 30 day
BODJ  limitations.   Of  these  six mills, two complied with the daily
maximum TSS and the maximum 30 day limitations; however, TSS data were
unavailable for one of the six mills; two mills of  the  six  exceeded
both  the  daily  maximum  TSS  and  the  maximum  30  day average TSS
limitations.  Also, one mill of the six complied with the  maximum  30
day  TSS  limitation, but exceeded the daily maximum TSS limitation or
one day out of 358 sampling days; one additional  mill  complied  witfr
the  maximum  30  day TSS and daily maximum TSS limitations but due tc
aerator failures exceeded the BOD5 limitations.


Groundwood Sutcategories

As discussed in Section VII,  data were available for  four  groundwooc
mills  which  have biological treatment systems.  Three of these mills
were determined to be "best mills", and the mills' effluent  data  ar«
presented  in Table 208.  The basic design parameters for the externa.
treatment facilities for the  best groundwood mills  are  presented  ir
Table 209.
                             636

-------
                             o
                             o-
                             cu
                             4->
                             >O
                             O
                             JQ

                             OO
             
            oo
              •
            r-.
      i—    co
      CM    co
                                                           in

                                                           oo
                                                           in
                                                           CM
         in
         CM
•-V.
CO
;£
0)
\^
tO |.i)y*
Q -»*
O Ol
OQ .*£
t—
•
2-


r~"*
*
CM

i —
•
2^


f—
•
CM

in
•
VO


oo
•
co

en
•
2.

in
^^
•
CM

   8
   CD
^
Q)
F
^J

                               to
                               d)
                                                                     CO
                  o.
                  •K
                                             637

-------
            oo
            0-
              ,
               CO
                                  r-.
                                  o>
                                  10
                           CTl
                           o
                           CO    CO
                           i—    CO
            CQ
            CO
                     o
                     CO
                     ro
cr>  o
o  re
CM U- i
 o>  c :
t—  CU
x>  E
 03 •!->
h-  10
    CU
      •a
       o
       i
   I—  c

   i—  O
    10  S-
    C CD
    s_
    CU
   •(J
    X
   LU
                                         O
                                         o
                                         10
                                         00
                           O
                      I    «3-
                           CO

                      1    CO
               CO
               -tJ
               4-




              ,
               CO
                                  00
                                  co
                            en    i—
                            o    oo
                            co
                     r—    CM    ro    m
                     o    o    o    o
                     o    o    o    o
                                                  638

-------
The  effluent  limitations  for  the  GW:  CMN and the GW: Fine Papers
Subcategories were based upon an average of the  final  effluent  BOD5_
and TSS concentrations of the three mills included in Table 208.  Mill
001, which is a chemi-mechanical groundwood mill, is included in Table
208  because of the similarity of BOD5 load into biological treatment.
Mill 001fs raw waste BOD5 is 529,  mg/1,  as  shown  in  Table  79  in
Section  VII,  and is reduced by primary treatment to 205 mg/1.  Thus,
mill 001 was included in Table 208 because  the  treatability  of  the
waste  waters  are  similar  to  groundwood  mill waste waters and the
strength of  the  waste  waters  receiving  biological  treatment  are
similar.   The  effluent  limitations  were  therefore  based upon the
demonstrated achievable levels of BOD5 and TSS and the subcategory raw
waste flows shown below:

              Flow:  90.9 kl/kkg (21.8 kgal/ton)   GW: Fine
              Flow:  99.2 kl/kkg (23.8 kgal/ton)   GW: CMN
              BOD5:  25 mg/1
              TSS:   44 mg/1

The effluent limitations for  the  thermo-mechanical  and  the  chemi-
mechanical  subcategories  were determined using the average raw waste
flow values (See section V)  and achievable  levels  of  BOD5  and  TSS
determined  through  an  examination  of the relationships between the
influent BOD5 and the effluent qualities.  Both subcategories have raw
waste  BOD5_  concentrations  which  are  higher  than  the  other  two
groundwood subcategories.  The thermo-mechanical subcategory raw waste
BOD5  is  282  mg/1  which  is slightly higher than the bleached kraft
subcategory raw waste BOD5 levels.  Since the biological  treatability
of groundwood waste waters is similar to bleached kraft waste water as
demonstrated  by groundwood mills 001, 002, and 005 which reduce their
raw waste BOD5 levels of approximately 200 mg/1  to  approximately  25
mg/1,  the effluent limitations were based upon BOD5 levels of 28 mg/1
and TSS levels of 51 mg/1.  The level of 51 mg/1 was  demonstrated  to
be  achievable  by  mills  using  only  ASB's  or A1s without any post
storage or clarifiers.  These levels are considered to be conservative
since mill 001 has achieved levels of BOD5 and TSS of 22 mg/1  and  35
mg/1,   respectively,  with  an  influent  BODJ5  level  to  biological
treatment of 205 mg/1.  Data should be available in  the  near  future
which  will  confirm the above levels from two thermo-mechanical mills
which employ biological treatment.  Mill 041 began operations  in  the
Fall  of 1975 and employs oxygen activated sludge, whereas mill 028 is
SOX thermo-mechanical  and  50%  stone  groundwood  uses  conventional
activated   sludge,   and  recently  began  operations.   The  thermo-
mechanical limitations were therefore based upon the following:

              Flow:  99.2 kl/kkg (23.8 kgal/ton)
              BOD5:  28 mg/1
              TSS:   51 mg/1

The  estimated  raw  waste  BOD5  levels  for   the   chemi-mechanical
subcategory  are  846  mg/1   (See  Section  V) which are substantially
higher than any of the other groundwood subcategories.  Mill 001 has a
raw waste BOD5 of 529 mg/1 and reduces the BOD5 to 205 mg/1 by primary
treatment.  Thus, some reduction of the raw waste BOD5 of 846 mg/1 can
be expected but not necessarily as much as mill 001 is  demonstrating.
                          639

-------
Analysis   of   the   chemi-mechanical  waste  water  treatability  as
demonstrated by mill 001 and comparison  to  other  subcategories  raw
waste  BOD5  levels  resulted  in a BOD5 level of 35 mg/1 on which the
effluent limitations were based.  A level  of  51  mg/1  for  TSS  was
determined   similarly  to  the  thermo-mechanical  subcategory.   The
effluent limitations were therefore based upon the following:

              Flow:  113 kl/kkg (27.0 kgal/ton)
              BOD5:  35 mg/1
              TSS:   51 mg/1

The annual average BOD5 and TSS values as determined  from  the  above
values  for  the  four groundwood subcategories are shown in Table 205
and were multiplied by the variability factors presented in Table  204
in  order  to determine the maximum 30 consecutive day and maximum day
effluent limitations.

In the groundwood subcategories two of the three best  mills  complied
with  the  daily maximum BOD5, the 30 day BOD5, the daily maximum TSS,
and the 30 day TSS  limitations;  the  third  mill  had  sampling  and
ammoniator  problems  which  resulted in excursions above the BOD5_ and
TSS limitations.

The use of zinc hydrosulfite by groundwood mills as a bleaching  agent
generally  results in relatively high zinc levels in the process waste
waters.  Available data resulting from  the  mill  surveys  are  shown
below:

     Bleaching                 Flow                      Zinc
Mill   Agent              kl/kkg(kgal/ton)       mg/1     kg/kkg(Ibs/ton

002     Na                   95.1(22.8)          0.097    0.009(0.018)
003     Zn                   106  (25.5)          2.63     0.89  (1.77)
005     Zn                   94.7(22.7)          0.390    0.037(0.074)
013     Na                   85.5(20.5)          0.118    0.010(0.020)
008     Zn                   112  (26.8)         10.5      1.18  (2.35)
010     None                 179  (42.9)          0.088    0.016(0.032)
014     Na                   97.6(23.4)          0.350    0.034(0.068)
Oil     Na                   48.8(11.7)          0.196    0.010(0.019)

Three  mills  for which data were available used zinc hydrosulfite for
brightening the pulp, mills 003,  005,  and  008.   These  mills  show
distinctly  higher  levels  of  zinc   in  the  effluent  values.   The
limitation was based  upon  mills  replacing   zinc  hydrosulfite  with
sodium  hydrosulfite.   Mill 014 had the  highest concentration  of zinc
for the sodium based mills and  therefore  0.35  mg/1 was used  along with
subcategory flow values to determine zinc limitations.   The  maximum  30
consecutive days and maximum day limitations were determined by using
variability  factors  of  1.5 and 3.0, respectively, which reflect raw
waste load variability and not  the variability of biological treatment
systems.

Sulfite Subcateqories
                             640

-------
The effluent limitations for the sulfite subcategories were determined
through a slightly modified methodology than that used for  the  other
subcategories  (i.e.  bleached  kraft)  because  of (1) the higher raw
waste loads associated with the sulfite subcategories,(2)  the  limited
application  cf  full  scale  biological  treatment systems at sulfite
mills, and (3) the biological treatabilities  of  sulfite  mill  waste
waters.   The  effluent  limitations  were determined for each sulfite
subcategory by multipling the raw waste flow by the  achievable  final
effluent  concentration  which is similar to the original methodology.
The difference involves  the  determination  of  the  achievable  BOD5
concentrations.   The raw waste flow used in the calculations was that
determined in Section V,  The achievable effluent concentrations  were
those  determined  through  the analysis in Section VII which examined
the influent and effluent BOD5 concentrations for sulfite mills  using
full  scale  biological  treatment  systems as well as for mills using
biological treatment  pilot  plants.   The  design  and  operation  of
treatment facilities treating sulfite mill waste waters were evaluated
in  order to determine the relationships between influent and effluent
BODjj values for those mills for which extensive data were available.

The sulfite manufacturing process results  in  much  higher  BOD5  raw
waste  loads  than  most  of the other subcategories ranging from less
than 100 kg/kkg (200 Ibs/ton) to over 200 kg/kkg  (400  Ibs/ton)  with
raw  waste  BOD5  concentrations  ranging  from  less than 400 mg/1 to
nearly 3,000 mg/1.  The subcategory average concentrations range  from
500  mg/1 to nearly 1,000 mg/1 and the raw waste concentrations in the
range of  2,000  to  3,000  mg/1  are  actually  associated  with  the
concentrated,  low  volume  waste  streams.   Some  sulfite mills have
segregated  their  waste   streams   and   are   treating   the   high
concentration,  low  volume  waste  streams  in  biological  treatment
systems and treating the low concentration, high volume waste  streams
by  primary  treatment.   The former waste streams are associated with
the pulping operations while  the  latter  are  from  the  papermaking
operations.   As  discussed  in  Section VII, two mills, mills 053 and
401, are presently treating the highly concentrated waste  streams  by
biological  treatment  systems  and  the  low concentration streams by
primary treatment.

Two mills, mills 051 and 052, are treating all  of  the  waste  waters
from  both  the  pulping  and  papermaking  operations.   However, the
treatment facility at mill 052 has been determined to be underdesigned
and mill 51's treatment facility has been determined to be operated at
less than maximum effectiveness.  Mills 006 and 007 treat all of their
waste waters in biological treatment facilities but  both  mills  also
employ  groundwood  pulping  which  has the effect of diluting the raw
waste  load.   Because  of  the  limited  application  of   biological
treatment  systems  representing  BPCTCA in the sulfite subcategories,
data were used when available from both full  scale  and  pilot  plant
operations  of  biological treatment facilities at sulfite mills.  The
basic design parameters for sulfite mills using full scale  biological
treatment systems are summarized in Table 210.

The  analyses  of  the  influent  and effluent data and the biological
treatment facilities were discussed in Section VII.  The results of  a
                            641

-------
            00
            Q.
               •O
               Q.
            vo
            in
                                 CTl
o
o
IO
   
-------
regression  analysis  are  plotted in Figure 47 in Section VII and the
following relationship was determined:

                BOD5 EFF = 38.95 Log BOD5 INF - 58

Using the above relationship with the BOD5  raw  waste  concentrations
determined  for  each  sulfite subcategory in Section V, the following
achievable BOD5 effluent concentrations were determined:
           Papergrade Sulfite
           Papergrade Sulfite Market Pulp
           Low Alpha Dissolving Sulfite Pulp
           High Alpha Dissolving Sulfite Pulp
49.4 mg/1
47.2 mg/1
48.2 mg/1
58.6 mg/1
It should be pointed out that this methodology includes a conservative
factor in that the relationship above was determined using influent to
secondary treatment and the achievable  effluent  concentrations  were
determined  using  raw waste loads which are generally 10 - 1556 higher
than biological treatment influent values.

The effluent limitations were therefore determined using the following
achievable BOD5 concentrations:

           Papergrade Sulfite                   50 mg/1
           Papergrade Sulfite Market Pulp       48 mg/1
           Low Alpha Dissolving Sulfite Pulp    50 mg/1
           High Alpha Dissolving Sulfite Pulp   60 mg/1

Data from mill 051 has shown that BOD5 levels less than 50 mg/1 can be
achieved with full scale biological  treatment  systems.   The  annual
average  BOD5_  concentration for mill 051 is 64.7 mg/1, but evaluation
of the operation of the treatment system has shown that BOD5  effluent
concentrations  of less than 50 mg/1 can be consistently achieved when
operating at design efficiencies.  During the winter months, mill  051
shuts down two or three aerators.

The  TSS effluent limitations were also determined using the raw waste
flow  for  each  sulfite  subcategory  and  achievable  TSS   effluent
concentrations.    The   achievable   TSS   concentrations   for  each
subcategory could not be determined in a similar manner  as  the  BOD5_
values  because final effluent TSS concentrations are impacted by both
influent TSS and influent BODJJ as well as the design and operation  of
the  treatment  facilities.   Extensive data were not available in all
cases in order to relate influent and effluent values.  Several of the
mills using full scale  systems  measure  their  TSS  by  non-standard
methods  (mills 006, 007, 052, 401).  The only available TSS data from
full scale operations was from mill 051 and  mill  053  which  use  an
aerated   stabilization   basin   and   an  activated  sludge  system,
respectively.  As shown in Table 81 in Section VII  these  mills  were
achieving  average  TSS  concentrations  of  56  mg/1 and 94 mg/1 with
influent BODj> concentrations of 388 mg/1 and 2645 mg/1,  respectively.
Mill  051  as  pointed  out  previously  was determined to operate the
treatment facilites at less than maximum effectiveness.  The data from
mill 051, however, and mill 053 were used as  the  basis  of  the  TSS
effluent  limitations.   Examination of the TSS effluent data and BODS
                              643

-------
influent data in relationship to the  sulfite  subcategory  raw  waste
loads   resulted   in   determining   the   following  achievable  TSS
concentration  which  were  used  as  the  basis   of   the   effluent
limitations.

               Papergrade Sulfite                  60 mg/1
               Papergrade Sulfite Market Pulp      60 mg/1
               Low Alpha Dissolving Sulfite Pulp   60 mg/1
               High Alpha Dissolving Sulfite Pulp  75 mg/1

Using  the raw waste flow value for each of the subcategories as shown
in Section V and the appropriate BODJ5  and  TSS  concentrations  shown
above,  the  annual  average BOD5 and TSS values were determined.  The
maximum 30 consecutive days and maximum day effluent limitations  were
determined by multiplying the annual average values shown in Table 205
by the variability factors in Table 204.

In  the  sulfite  subcategories  one  mill presently complies with the
daily maximum BODj>, the maximum 30 day BOD5,  and  the  daily  maximum
TSS, and the 30 day TSS limitations.

Soda Subcategory

There  are  presently two mills in the sdda subcategory, mills 151 and
152, and  a  third  soda  mill,  mill  150,  has  recently  shut  down
operations.   Mill  151  discharges  its  waste  waters  to  municipal
treatment and mill 150 used a trickling filter  but  as  discussed  in
Section  VII  was  ineffective  in reducing BOD5_ and TSS to acceptable
levels.  Mill 152 employs an ASB to achieve final  effluent  BODJ5  and
TSS  qualities  of  28 mg/1 and 107 mg/1, respectively.  The treatment
system in use by mill 152 is deficient in the design for TSS reduction
as discussed in Section VII even though acceptable levels of BODJ>  are
being   achieved.   The  basic  design  parameters  for  the  external
treatment facilities in use by mills 150 and  151  are  summarized  in
Table 211.

The  effluent  limitations were based upon BOD5 and TSS concentrations
of 28 mg/1 and 51 mg/1, respectively.  The BODji value of 28  mg/1  was
that  being  achieved by mill 152 and is similar to those levels being
achieved by mills in  the  bleached  kraft  subcategories.   Following
upgrading  of  the treatment system for TSS reduction at mill 152, the
final effluent BOD5_ concentrations will probably be lower due to  more
effective  treatment  and  solids reduction.  The TSS value of 51 mg/1
was derived from the bleached kraft fine papers subcategory.  The soda
manufacturing  process  is  very  similar  to   the   bleached   kraft
manufacturing  process   (see  Section  III)  and thereby the raw waste
characteristics  and  treatability  are  similar.   Because   of   the
similarities   in  waste  waters  and  treatabilities  and  since  the
treatment facilities at mill 152 are not representative of BPCTCA, the
TSS effluent limitations were based upon 51 mg/1 which was  the  basis
for   the   bleached   kraft  fine  papers  subcategory  TSS  effluent
limitations.

The basis for the effluent limitations for the  soda  subcategory  are
therefore the following:


                              644

-------
             CO
             0_
               1
        o
        r^
        oo
            CO
            CO
                     O
                     o
Q) C
   m
   
-------
             Flow:   144 kl/kkg (34.5 kgal/ton)
             BOD5:   28 mg/1
             TSS:    51 mg/1

The  annual  average  BODj> and TSS values as determined from the above
values were multiplied by the variability  factors  in  Table  201  to
determine  the  maximum  30  consecutive days and maximum day effluent
limitations.

In the soda subcategory, one mill  complies  with  the  daily  maximum
BODJ5,  the maximum 30 day average BOD5, and the daily maximum TSS, but
has exceeded the maximum 30 day average TSS.

Deink Subcategory

Effluent data for the five deink mills for which data  were  available
with  biological treatment facilities are shown in Table 80 in Section
VII.  Schematics of the external treatment facilities at  these  mills
are  presented  in  Figure  44  and the design parameters are shown in
Table 212.  The treatment systems used by these mills involve  aerated
stabilization  basins,  activated  sludge,  and  a  modified activated
sludge - aerated stabilization basin system.  Mill 300 is  located  in
the  Southwest and uses an ASB followed by filtration to achieve total
recycle of waste waters.  Table 213  presents  influent  and  effluent
waste water characteristics for the deink mills which were used as the
basis  of  the  effluent  limitations  and as shown, three of the five
deink mills with biological treatment systems  were  included.   Since
the  deink  process can create high raw waste loads and have an effect
upon final effluent qualities depending upon the types of waste  paper
used  it was determined to be necessary to increase the reliability of
the data base through inclusion of as  many  mills  in  Table  213  as
appropriate.

The effluent limitations were therefore based upon the following:

              Flow:  104 kl/kkg  (25.0 kgal/ton)*
              BOD5:  51 mg/1
              TSS:   75 mg/1

              *at 100X deink

The  annual  average  BOD_5 and TSS values as determined from the above
are shown in Table 205 and were multiplied by the variability  factors
in  Table 204 in  order to determine the maximum 30 consecutive day and
maximum day effluent limitations.

In the deink subcategory, two mills complied with  the  daily  maximui
BOD5 and the maximum 30 day BQD5_  limitations.  Of these two mills, TS£
data were unavailable for one of  the mills and the other mill exceeded
the  daily  maximum TSS limitation (4 times out of 359 data points) and
the maximum 30 day limitation  (one 30  day period was higher  than  th«
limitation).   One  additional  mill   complied with the maximum 30 da?
BOD5 and the maximum 30 day TSS limitations, but  exceeded  the  dail}
maximum  TSS  (once in 348 days of sampling) and the daily maximum BODj
limitations.


                              646

-------
              oo
              O-
                CM
                +J
                  l
                                              10
                                              CM
                                              O
                                        '—    O
                                        CO    CO
 o>
•I—
4J
«M  O
rH  to
CM U-
            03
            00
      1—
    Ci—
                     If)    O    O    O
                     CO    CO    CO    O
                        i—    10   in
h-  (O ^i
    O)  C
    s- •/-
   I—  O)
      Q
   i.
   OJ
   +J
   X
              £J    ,
                                       I    OO


                                            LD
             J
              CM



              ll
                    O
                    10
                    o
                    ro
                                  o    «d-
                                  co    CM
                                  CM    LO
                      CO
                            tn
                            CO
                   CO    ^f    LO    IO    IO
                   O    O    O    O    i—
                   CM    CM    CM    CM    CM
                                                   647

-------
                         IO
                         o
                                    in      in
                   I
                to .a
                CO r-
                    CT
                    CTi
                                    CM
                         cn.
                         en
                                            oo
                                    LT>      in
  2?1-
  c «s-
  CD ;r;
  UJ _|
     UJ
oi oo

n i£
rC ,
    UJ
• i—i
 LU ft

 Qe
    to
    
               o .a
               CO r—

                  O)
                    O)
                         ro
                •IJ

                 C
                 cu
                         o
                         oa
                         to
                         o
                              CM    co      o

                              OO    CO      OO
                              i—    CM      O
                             oa
                             oo
                              o    o
           cc:
i O
'< O _
 CO E
                         CO
                         oo
                                   cn
                                   o
                                            uo
                 3  cn


                u_  en
                         CO
                         C\j
                         OJ
                         co
                         cn
                              CM    O      CM

                              **o    cn      cn
                                   a>
                                           cn
                         vo
                         o
                         CM
                             LO    vo
                             o    i—
                             CM    CM
                                             cu
                                             cn
                                             
-------
Non-Integrated Papers Mills Subcateqgrj.es

Non-Integrated Fine Papers Subcategory

Effluent data for non-integrated fine paper mills  are  summarized  in
Table  83  for those mills with primary and are or secondary treatment
systems.  Schematics are presented for non-integrated fine paper mills
with biological treatment facilities  in  Figure  44  and  the  design
parameters  are summarized in Table 213A.  Only two mills, 257 and 284,
use biological treatment systems for which data were  available.   The
final  effluent BOD5 concentrations for mills 257 and 284 were 86 mg/1
and 110 mg/1, respectively.  In addition, the  TSS  concentration  for
mill  284  was  102  mg/1.  The average BOD5_ concentration for all the
mills in Table 83 that have primary treatment facilities was  86  mg/1
(excluding mill 279) indicating that primary treatment is not adequate
to achieve high quality effluents.  The secondary treatment systems in
use  by  mills  257  and  284  were  only  achieving  an  average BOD5
concentration of 98 mg/1 which is also not  a  high  quality  effluent
indicating  that  the  biological  treatment systems in use by the two
mills are not representative of BPCTCA.

Because no mills were demonstrating treatment  systems  representative
of BPCTCA, the effluent limitations were based upon a BOD5_ level of 38
mg/1  and  a  TSS  level  of 51 mg/1.  Bleached kraft mills which used
external treatment systems representative  of  BPCTCA  achieved  final
effluent BOD5 levels of 9 to 38 mg/1 with raw waste BOD5 of amount 230
to 250 mg/1.  Since less effective treatment would be expected through
treatment  of  lower  raw waste BOD5 levels (i.e., NI fine papers: 170
mg/1), 38 mg/1 was used as the basis of the BOD5 effluent limitations.
A level of 51 mg/1 was used for the TSS limitations which is the  same
level  as the bleached kraft fine paper subcategory.  The BOD5 and TSS
levels were based upon the  bleached  kraft  fine  papers  subcategory
levels  since  similar  products  are  manufactured  which  result  in
relatively  similar  waste  waters  in  regards  to   the   paperaking
operations.   It  should  be pointed out that several mills achieve or
nearly achieve the effluent limitations using only primary  treatment.
These  mills  use  extensive  inplant  controls  as  an alternative to
external controls representative of BPCTCA.  The flow  basis  for  the
effluent  limitations  was 63.3 kl/kkg  (15.2 kgal/ton) as developed in
Section V.

The effluent limitations were therefore based upon the following:

              Flow:  63.3 kl/kkg  (15.2 kgal/ton)
              BOD5:  38 mg/1
              TSS:   51 mg/1

The annual average BOD5 and TSS values as determined  from  the  above
and  shown  in Table 205 were multiplied by the variability factors in
Table 204 in order to determine the maximum  30  consecutive  day  and
maximum day effluent limitations.

In  the  NI fine papers subcategory, two mills complied with the daily
maximum BOD5, the maximum 30 day BOD5, the daily maximum TSS, and  the
maximum  30  day  TSS limitations.  One mill had limited BODJ> data but


                            649

-------
            SI     ,
           •ol

                             o
                             CO
                             ro
                             10
                             CM
                             ro
         CO
         (/)

.0  E
 CO -M
I—  ro
    01
•4->  V)      i
i- ^-      rol
••- -^      T3|
   T3
    
                                      o
                                      VO
                                      in

                                      n
 S-
 
                             CM
                             CM

                  VO

                  CM
                  O
                  00
                  00
                                       VO
                                       o
                              CM    O
                              ro    •—
                  o    t—
                  in    in
                  CM    CM
                                 uo
                                 CM
CO
vo
CM
                                               650

-------
did comply with the daily maximum  BOD5  (data  was  insufficient  for
maximum 30 day BODJ3 and TSS comparisons as well as daily maximum TSS) .
Two  mills  complied with the maximum 30 day TSS and the daily maximum
TSS tut exceeded the BOD5 limitations.  One  mill  complied  with  the
maximum 30 day TSS limitations but exceeded the other limitations.

Non-Integrated Tissue Papers Subcategories

Table  84  shows  effluent data for non-integrated tissue mills and is
divided into the following three groups:   Group  1:   10056  purchased
pulp.  Group  2:  Purchased Pulp and Waste Paper, Group 3:  100% waste
paper.  BPCTCA for the non-integrated tissue subcategory includes only
primary treatment as most of the BOD5  in  the  raw  waste  waters  is
associated  with the fibrous materials  (TSS)  in the mill waste waters.
In these cases, removal of the TSS also removes a large amount of  the
raw  waste  BOB5.   Three  forms  of  primary treatment are used by NI
tissue mills:   (1) clarifiers, (2) dissolved air  flotation,  and  (3)
settling  basins.   Each of these is capable of achieving high quality
levels of BOD5 and TSS in effluents from NI tissue mills.  Examination
of the BOD5_ and TSS levels achieved by mills  in  each  of  the  three
groups results in the following conclusions:

     (1)  High quality effluents can be achieved with primary treatment
         by mills using 10056 purchased pulp or by mills using  varying
         proportions of waste paper and purchased pulp.

     (2)  Mills using 100% waste paper  and  primary  treatment  cannot
         achieve  similar  quality  effluents as mills using purchased
         pulp with similar treatment systems.  This is due  to  higher
         levels  of  soluble  BOD5  in the waste waters of mills using
         100% waste paper.

     (3)  Biological treatment is necessary for mills using 100%  waste
         paper to achieve high quality effluents.

Since  biological treatment is not the basis of the limitations for NI
tissue mills, the effluent limitations were  determined  by  averaging
the final effluent BODJ5 and TSS values in kg/kkg  (Ibs/ton) rather than
using  the  RWL  flow  and final concentrations.  The NI tissue papers
subcategory effluent limitations are based upon the average of group 1
and 2 from Table 84.

The BOD5 and TSS values which were used as the basis of  the  effluent
limitations  for  the  NI  tissue papers subcategory are therefore the
following:

              BOD5:  3.5 kg/kkg  (7.0 Its/ton)
              TSS:   2.85 kg/kkg  (5.7 Ibs/ton)

These values were determined from the  data  presented  in  Table  214
along  with  their  corresponding concentrations using the subcategory
raw waste flow of 95.5 kl/kkg  (22.9 kgal/ton).  In order to  determine
the maximum 30 consecutive day and maximum day limitations, the annual
average values were multiplied by the variability factors in Table 204
which apply specifically to the NI tissue paper subcategory.
                            651

-------
CM





















00
•z.
o

I—
t-H
oo 2:
_J t-l
fr <
s 1—
LU LU
^^ —~\
oo _i
CO LU
t— l LU
1— LU

Z O
la-
CO
00

00




























oo
oo
•I-* h™
C
™~
(Q
O

0)

to

2
(O

un
Q
o
CQ






^
o
r—
Lu












C
o
IO
f"i
r-
Ol
J*:
\x
^^
Ol


c
o
•M
-Q
>—
O
^
O)
c
_1 ^
^^



LO
"*





O

OO
•
O
vo



r—
O
oo




«*
oo"
oo

r^
VO
r~



r^
1^**
CM

tn
uo
t—
i— ~





CO
o
oo

""Vo
1 ' 1
cr>



vo
i > i
^-


*
i— i— CTi
in r*. oo
CO

mtn^-
r^co^-



U- Lu
< <
QOO
z
in
*
LO



1^
i i Ln
CM




•>*
i i r~I
• —

r^
1 1 OO




 LO OO
O O VO
CO ^J" VO
f*— r~





LO 00 LO
CM r- i—
OO OO CO

^c\T
i •
CM



r—
1 •
r—



O Oi
CM VO


0«3-
r- 00


00
LU 0-
^f. 1
O 0

1 1





1 1






1 1



, 1




<*LO
O i—
•— r—

<* O
OO 00
^" *^






VO CM
O LO
CO CM

"~^^"
I •
VO



CM
1
oo



0 *i-
IO CM
r—

LO CM
CM VO




CO
OO 0
x
m
i— LO
r^ ^f
i —


00 O
LO CM
oo r^




r^ i-x
^j. if)
*~* ^~

oo oo
r^ CM
CM



oor^
00 «=}-
CM r-

r- co
0 i—
CVJ ^.O
^~





O^ OG
i— O
CO CM

r—
• 1
r^



LO
• i
oo



CM VO
CM VO
1 —

r-00
VO CO


OO
o_
1
0 O
e
CO
•
1 CO
fx^



VO
i vo
CO




LO
i oo
CM

IX*
1 ,_
1™-



0>CM
VO CM
oo i—

en en
oo o
LO LO
r—





cn c\j
CM O
CO CO

o
1 • 1
CO



o to
. • 1
co r-



LO 00 00
IO CM 00


r-,«i- cn
CM i— i—




CO
O CO 0

00 O ^-
• • •
«3- co o
^^ CD LO
1 —


^- LO CM
CM t— LO
CM LO CM




OO CO OO
«* rx. cn
i— CM CM

^- vo vo
rx, co *3-
1 ^~



CMI-XI-X
CO CM VO
CM CM r—

rx.rx.vo
vo *4- cr»
cj\ cn vo






CD *^ cn
r— CM O
CO CO 00

CD
1 • 1
OO



cn
i • i
f—



vo cn CTI
cn rx. ^a-


oo cn ^r
^J- OO CM

LU
o

n
O O 0

oo
•
vo



•—
1 CM 1
CO




CM
i cn i
« —

vo
i cn i




orx.^-
CM rx. rx
CO i— r—

*3- CO VO
CO CO CM
co px, rx.
^™





oo cn vo
OO LO CM
CO CM OO

^
•
LO



CO
•
CM



O
rC


LO
oo







LfT
co
00



r"x
pj
«*




O
LO
CM

LO
CM
r~



^
CM
CM

CM
CM
CTl



O>
to
















































in
o>

Q)
ff*
«w
C
*^—
ni
\u
^Q
3
r.-
U
c
• p_>
4J
O
Z

*
                                  652

-------
Because  no  mills were demonstrating treatment systems representative
of BPCTGA (biological treatment) for NI tissue papers  (FWP) mills, the
effluent limitations were based upon a BOD5_ level of 38 mg/1 and a TSS
level of 55 mg/1.  The bleached kraft segment  achieved  high  quality
effluents  ranging  from  10-38 mg/1 and since non-integrated tissue
(FWP) mills  are  relatively  small  and  have  little  experience  in
achieving high quality levels of BOD5 by biological treatment, 38 mg/1
was used as the basis of the BOD5 effluent limitations.  A level of 55
mg/1 was used for the TSS limitation which was based upon the bleached
kraft  BCT  subcategory because of the similarities of the papermaking
operations.

The effluent limitations were therefore based upon the following:

              Flow:  94.2 kl/kkg (22.6 kgal/ton)
              BOD5:  38 mg/1
              TSS:   55 mg/1
The maximum 30 consecutive  days  and  maximum  day  limitations  were
determined  by  multiplying  the annual average values determined from
the above values by the variability factors shown in Table 204.

In the NI tissue subcategories, four mills  complied  with  the  daily
maximum  BOD5  and  the  maximum  30 day BOD5_ limitations.  Of these 1
mills, two complied with both the daily nraximum TSS and the maximum 30
day TSS limitations; the  other  two  mills  did  not  have  TSS  data
available.  In addition, three mills having limited BODj> data complied
with  the  daily  maximum  BOD5  limitation (data was insufficient for
maximum 30 day BOD5, and TSS comparisons except for one mill which had
limited TSS data and complied with the daily maximum TSS limitation).

PRETREATMENT REQUIREMENTS

No constituents of the  effluent  discharged  from  mills  within  the
bleached  kraft,  groundwood, sulfite, soda, deink, and non-integrated
paper mills segment of the pulp, paper, and  paperboard  point  source
category  have  been  identified  which  would  interfere  with,  pass
through,  or  otherwise  be  incompatible  with  a  well-designed  and
operated  publicly  owned biological waste water treatment plant.  The
exception to this, however, is the discharge of zinc  from  groundwood
mills  which use zinc hydrosulfite as a bleaching agent.  Pretreatment
standards on zinc which  are  equal  to  the  BPCTCA  limitations  are
proposed   for   groundwood   mills   using  zinc  hydrosulfite.   The
pretreatment  standards  can  be  achieved  by   substituting   sodium
hyrosulfite  for  zinc  hydrosulfite in the bleaching process which is
commonly practiced by many groundwood mills.
                          653

-------
                              SECTION X
                      BEST AVAILABLE TECHNOLOGY
                   ECONOMICALLY ACHIEVABLE (BATEA)
INTRODUCTION
The effluent limitations predicated on the  application  of  the  Best
Available   Technology  Economically  Achievable  (BATEA)  are  to  be
achieved not later than July 1, 1983.  These are  not  based  upon  an
average  of  the  best  performance  within  a given subcategory under
study, but have been determined by identifying the  best  control  and
treatment technology employed by a mill in a given subcategory, and by
applying  technologies  used  by  other  industries or demonstrated by
pilot plant performance on waste waters generated by mills in the pulp
and paper industry.

Consideration was also given to:

    a.   the age and size of equipment and facilities involved;

    b.   the process employed;

    c.   the  engineering  aspects  of  the  application  of   control
         technologies;

    d.   the cost of application in  relation  to  reduction  benefits
         (including energy requirements);

    e.   the non-water quality environmental impact.

This level of technology emphasizes both internal process improvements
and external treatment of waste  waters.   It  will  require  existing
mills to implement programs designed to achieve:

    1.   Significant  restrictions  in  the  volume  of  waste   water
         generated  and  reductions  in  BOD^  and  TSS raw waste load
         through internal reuse and recovery measures;

    2.   Improvement  and  modernization  of  the  chemical  handling,
         recovery, and recycle systems employed.

In addition the application of more advanced water treatment processes
will be required to meet the BATEA limitations.

EFFLUENT   REDUCTION   ATTAINABLE  THROUGH  APPLICATION  OF  THE  BEST
AVAILABLE TECHNOLOGY ECONOMICALLY ACHIEVABLE

Based upon the information available to the Agency, the  point  source
discharge limitations for each identified pollutant are shown in Table
215  and  may  be  attained  through the application of Best Available
Technology Economically Achievable.
                             655

-------
                                        TABLE 215
                                        BATEA
                        Effluent Limitations in kg/kkg(lbs/ton)


Subcategory              Maximum 30 Day Average                Maximum Day

Dissolving Kraft
Market Kraft
BCT Kraft
Fine Kraft
Papergrade Sulfite
Market Sulfite
Low Alpha
Dissolving Sulfite
High Alpha
Dissolving Sulfite
GW-Chemi -Mechanical
GW-Thermo-Mechanical
GW-CMN Papers
GW-Fine Papers
Soda
Deink
NI Fine Papers
NI Tissue Papers
NI Tissue Papers(FWP)
BODS
5.8 (11.6)
3.55( 7.1)
3.0 ( 6.0)
2.55( 5.1)
8.9 (17.8)
10.05(20.1)
11.4 (22.8)
13.8 (27.6)
3.9 ( 7.8)
2.1 ( 4.2)
1.85( 3.7)
1.75( 3.5)
2.55( 5.1)
2.6 ( 5.2)
1.35( 2.7)
2.15( 4.3)
1.9 ( 3.8)
TSS
3.95( 7.9)
2.6 ( 5.2)
2.05( 4.1)
1.75( 3.5)
3.0 ( 6.0)
3.45( 6.9)
3.35( 6.7)
4.75( 9.5)
1.65( 3.3)
1.45( 2.9)
1.45( 2.9)
1.35( 2.7)
1.75( 3.5)
2.7 ( 5.4)
0.7 ( 1.4)
1.1 ( 2.2)
1.0 ( 2.0)
BODS
11.15(22.3)
6.8 (13.6)
5.8 (11.6)
4.95( 9.9)
17.1 (43.2)
19.3 (38.6)
21.9 (43.8)
26.5 (53.0)
3.15( 6.3)
4.05( 8.1)
3.55( 7.1)
3.35( 6.7)
4.95( 9.9)
5.05(10.1)
2.6 ( 5.2)
4.15( 8.3)
3.7 ( 7.4)
TSS
7.35(14.7)
4.8 ( 9.6)
3.8 ( 7.6)
3.25( 6.5)
5.6 (11.2)
6.4 (12.8)
6.25(12.5)
8.8 (17.6)
3.1 ( 6.2)
2.65( 5.3)
2.65( 5.3)
2.55( 5.1)
3.25( 6.5)
4.95( 9.9)
1.3 ( 2.6)
2.05( 4.1)
1.85( 3.7)
     pH for all subcategories shall be within the range 5.0 to 9.0.
                                   656

-------
                                        TABLE  215
                                        BATEA
                        Effluent Limitations in  kg/kkg(lbs/ton)
                                        (cont.)
                                      Color
Subcategory

Dissolving Kraft
Market Kraft
BCT Kraft
Fine Kraft
Soda
Maximum 30 Day Average
  kg/kkg(lbs/ton)
  125   (250)
   95.0 (190)
   65.0 (130)
   65.0 (130)
   65.0 (130)
  Maximum Day
kg/kkg(lbs/ton)
250   (500)
190   (380)
130   (260)
130   (260)
130   (260)
Subcategory

GW:Chemi cal-mechani cal
GW:Thermo-mechanical
GW:CMN Papers
GW:Fine Papers
               Zinc*

 Maximum 30 Day Average
   kg/kkg(lbs/ton)
   0.048 (0.096)
   0.0415(0.083)
   0.0395(0.079)
   0.0415(0.083)
  Maximum Day
 kg/kkgQbs/ton)
 0.095 (0.19)
 0.085 (0.17)
 0.085 (p.17)
 0.075 (0.15)
       *Applicable only to mills using zinc hydrosulfite.
                                   657

-------
The average of daily values for 30 consecutive days should not.  exceed
the  maximum 30 day average limitations shown in Table 215.  The value
for any one day should not exceed the daily maximum limitations  shown
in  this  table.   The limitations shown are in kilograms of pollutant
per  metric  ton  of  production  (pounds  of  pollutant  per  ton  of
production).  Effluents should always be within the pH range of 5.0 to
9.0.

Production  in  kkg(tons)  is  defined as annual tonnage produced fron
pulp dryers (in this case of market  pulp)  and  paper  machines  (for
paper/ board)  divided by the number of production days in the 12-month
period.  Pulp production is to be corrected, if necessary, to the "air
dry" moisture basis.

Effluent  limitations  will be established at a later date for ammonie
nitrogen for mills in the sulfite and dissolving sulfite subcategories
using an ammonia base.  No  specific  limitation  has  been  developed
because  of  the limited availability at this time of meaningful data.
Indications are that discharges in the range of 1 to 3 kg/kkg  (2 to   f
Ib/ton) can occur.  No technology for the removal of nitrogen has beer
applied within the pulp and paper industry.  Effluent limitations have
not  been  established for ammonia nitrogen as it is not considered tc
be economically achievable at this time for these two subcategories.

Effluent limitations for color will be developed for all  sulfite  and
dissolving  sulfite  mills at a later date.  Sparse data indicate that
color discharges from these mills contain 200 to 250  kg/kkg   (400  tc
500 Ib/ton).  No technology for removing color from these effluents is
presently  available or in a stage of development which is foreseen tc
be available by 1983.  Thus,  limitations  for  color  have  not  beer
established because it is not considered to be economically achievable
for these two subcategories at this time.
IDENTIFICATION   OF   THE   BEST   AVAILABLE  TECHNOLOGY  ECONOMICALLY
ACHIEVABLE
The Best Available Technology Economically Achievable consists of  th<
Best  Practicable Control Technology Currently Available as defined ir
Section IX and discussed in Sections VII and VIII of this report.   I
also  includes  the additional internal mill improvements and external
advanced waste water treatment practices as  discussed  in  detail  ii
Section VII and VIII.

It  is  emphasized  here that these technologies are not of themselve
required.  Due to economic, space, or other factors,  many  mills  ma1
choose to use alternative technologies.
                               658

-------
RATIONALE   FOR   THE  SELECTION  OF  THE  BEST  AVAILABLE  TECHNOLOGY
ECONOMICALLY ACHIEVABLE

Age and Size of Equipment and Facilities

There is a wide range, in both size and age, among mills in  the  sub-
categories  studies.  However, internal operations of most older mills
have been upgraded, and most of these  mills  currently  operate  very
efficiently.   The  technology  for  updating  of  older mills is well
established, and does not vary significantly from mill to mill  within
a  given  subcategory.  As discussed in some detail in Sections IV and
V, there is little or no basis for  quantifying  the  effect  of  age,
size,  or  geographical  location,  on  the quantity or quality of the
waste water generated by mills within a subcategory.

Processes Employed

All mills within each sutcategory studied  use  the  same  basic  pro-
duction  processes.   Although  there  are deviations in equipment and
production procedures, these deviations do not significantly alter the
characteristics of the waste water  generated.   The  treatability  of
these wastes is similar.

Application  of BATEA may require major changes in existing industrial
processes for the subcategories studied.  Incorporation of  additional
systems, treatment processes, and control measures can be accomplished
in   most   cases  through  changes  in  piping,  and  through  design
modifications to existing equipment.  Such alterations can be  carried
out by mills within a given subcategory.

Engineering Aspects of the Application of Control Technologies

Much  of  the  technology  to  achieve  these  effluent limitations is
practiced within the pulp and paper industry by outstanding mills in a
given subcategory.   Sufficient  research  and  pilot  work  has  been
carried  out  on  color  removal  to  demonstrate  the  feasibility of
achieving the effluent limitations.  The technology required  for  all
best   available   treatment  and  control  systems  will  necessitate
sophisticated monitoring, sampling, and control programs, as  well  as
properly trained personnel.

Cost of  Achieying Effluent Reduction  (and Energy Requirements)

The  total  projected costs of BATEA reflect an increase of production
expenses as shown in Tables 151 through 184 of  Section  VIII.   These
increases   include   both   internal   control   and  external  waste
improvements and they are based on 360 days of  production  per  year.
It should be emphasized however, that  some mills have carried out many
of  these  improvements and, consequently, their increased costs would
be less than those shown.  The total incremental cost of achieving the
BATEA effluent limitations for all mills is approximately one  billion
dollars.
                              659

-------
The  energy  requirements associated with the application of pollution
control technologies are developed in Section VIII and shown in Tables
197 to 201.

Non-Water Quality Environmental Impact

The technology cited will  not  create  any  significant  increase  in
odors,  or  in  noise  levels  beyond  those observed in well-designed
municipal waste water treatment  systems  which  currently  are  being
approved  by  the  federal  government  for  construction in populated
areas.  Further, no hazardous chemicals are reguired as part  of  this
technology.   Further  discussion  of  non-water quality environmental
impacts is included in Section VIII.


RATIONALE FOR SELECTION OF EFFLUENT LIMITATIONS

The rationale used in developing the effluent  limitations  for  BOD5,
and  TSS  is  discussed  below for each of the subcategories as is the
rationale for the color limitations for the bleached  kraft  and  soda
subcategories.   Specifically  identified  are  the  methods  used  to
establish the limitations for the maximum 30 consecutive  day  average
and the daily maximum value for BOD5, TSS, and color.

The BATEA effluent limitations were based upon the capabilities of the
internal  and  external  pollution  control technologies identified ir
Section VII and VIII.

The general approach in determining the effluent limitations is  giver
below:

    1.   The  best  mill  or  mills  within  each   subcategory   were
         identified from a standpoint of raw waste loads.

    2.   The best mill or mills were evaluated to determine  that,  the
         mill  or  mills were representative of other mills within the
         subcategory.

    3.   The extent of internal controls at the best mill or mills was
         then  thoroughly   evaluated   to   determine   the   genera;
         relationships between raw waste load and internal controls.

    4.   Estimates of possible raw waste load reductions, if any, weri
         made for the mills which would be a result of installation o:
         additional internal controls identified as BATEA  in  Sectio
         VII and VIII that were not in use by the best mills.

    5.   The raw waste load achievable by the best mill  or  mills  i
         each subcategory by the use of BATEA was thus established.

    6«   The  effluent  reduction  performances  of   the   identifie
         external treatment systems were than used in conjunction wit
         the  established  raw waste load per subcategory to determin
         the effluent limitations.
                           660

-------
The maximum 30 consecutive  days  and  maximum  day  limitations  were
determined by multiplying the annual average values by the variability
factors  shown  in  Table  216.   The  development  of the variability
factors is discussed in Section VII.

Table  217  summarizes  the  BATEA  raw  waste  loads  and  Table  218
summarizes  the  flow  values,  BOD5,  and TSS concentrations for each
subcategory which were used as the basis for the BATEA limitations.

Bleached Kraft Subcategorjes

Dissolving Kraft Subcategory

The dissolving kraft raw waste load was based upon mill 127 which  had
the following flow, BOD5, and TSS raw waste loads:

                Flow:   229.3 kl/kkg (55.0 kgal/ton)
                BOD5_:   40 kl/kkg (80 Ibs/ton)
                TSS:    87.5 kl/kkg  (175 Ibs/ton)

Evaluation  of  the  inplant controls presently in use at mill 127 and
the additional controls identified as BATEA in Section  VII  and  VIII
resulted in the following estimates of RWL reduction:

                Flow:   12.5 kl/kkg  (3.0 kgal/ton)
                BOD5:   2.5 kg/kkg  (5.0 Ibs/ton)
                TSS:    2.5 kg/kkg  (5.0 Ibs/ton)

Thus,  the  BATEA  RWL  for  the dissolving kraft subcategory were the
following:

                Flow:   216.8 kl/kkg (52.0 kgal/ton)
                EOD5:   37.5 kg/kkg  (75.0 Ibs/ton)
                TSS:    85.0 kg/kkg  (170.0 Ibs/ton)

Mill 127 presently achieves 24 mg/1 BOD5 in the  final  effluent  from
the  aerated stabilization basin which is the best quality effluent of
the two mills in the dissolving kraft subcategory that have biological
treatment facilities.  This level of BOD5  is,  however,  higher  than
that  achieved  by  many  other bleached kraft mills of comparable raw
waste  BOD5  concentrations.   Table  219  presents   BOD5   and   TSS
concentration  for  the  top  eight  bleached  kraft  mills which were
derived from Table 206 in Section IX.  As shown, the averages for BOD5
and TSS for the "best of the best" external treatment systems are 13.5
mg/1 and 31 mg/1, respectively.  The range for final effluent BOD5_  is
from  9  to  18  mg/1 with raw waste BOD5 ranging from 120 mg/1 to 264
mg/1.  The average BOBJ5 raw waste for the eight mills was 201 mg/1 and
the bleached kraft dissolving pulp subcategory average BOD5_ raw  waste
was  173  mg/1.  It should be pointed out that mill 127fs present BOD5_
raw waste is 174 mg/1.  Improved operation of the  external  treatment
system  and  the  addition  of  effluent coagulation and filtration as
identified as BATEA in Section VIII should allow mill 127  to  achieve
an average BOD5_ concentration of 15 mg/1 (as demonstrated by the mills
in  Table  219  which  do  not  even  use  filtration).  Filtration of
biological treatment effluents reduces TSS to levels between 5  to  10
                             661

-------
                               Table  216
                       BATEA  Variability  Factors
            Bleached Kraft Soda,  Groundwood,  Sulfite,  Deink,
           NI Fine Papers, and NI Tissue  (fwp)  Subcategories
Parameter                   Maximum 30 Days               Maximum Day
  BOD5_                           1.78                       3.42
  TSS                            1.82                       3.38
                    NI Tissue Papers Subcategory

Parameter                   Maximum 30 Days              Maximum Day
  BOD5_                           1.79                       3.25
  TSS                            1.76                       3.60
                              662

-------
Subcategory
                                      TABLE 217
                             SUBCATEGORY RAW WASTE LOADS
                   BEST AVAILABLE TECHNOLOGY ECONOMICALLY ACHIEVABLE
      FLOW
kl/kkg(kga1/ton)
BK-.Diss.
BK:Mkt
BKrBCT
BK:Fine
Soda
GW:CMP
GW:TMP
GW:Fine
GW-.CMN
Sulfite: Paper
SulfiterMkt
Low Alpha
High Alpha
Deink
NI Fine
NI Tissue
NI Tissue (FWP)
217 (52.0)
142 (34.0)
113 (27.0)
95.9 (23.0)
95.9 (23.0)
91.3 (21.9)
79.2 (19.0)
75.1 (18.0)
79.2 (19.0)
167 (40.0)
188 (45.0)
183 (44.0)
172 (41.2)*
73.4 (17.6)
38.4 ( 9.2)
60.5 (14.5)
53.8 (12.9)
     BOD5
kg/kkg(1bs/ton)
      TSS
kg/kkg(1bs/ton)   mg/L
37.5 ( 75.0)
26.5 ( 53.0)
26.0 ( 52.0)
23.5 ( 47.0)
30.0 ( 60.0)
79.5 (159 )
26.5 ( 53.0)
16.0 ( 32.0)
16.0 ( 32.0)
75.0 (150 )
100 (200 )
115 (230 )
212.5 (425 )
82.5 (165 )
9.5 ( 19.0)
10.0 ( 20.0)
13.0 ( 26.0)
173
187
231
245
313
871
334
213
202
450
533
627
1237
1124
248
165
242
85.0 (170 )
65.0 (130 )
46.5 ( 93.0)
46.5 ( 93.0)
65.0 (130 )
22.5 ( 45.0)
25.0 ( 50.0)
45.0 ( 90.0)
45.0 ( 90.0)
75.0 (150 )
30.0 ( 60.0)
85.0 (170 )
85.0 (170 )
178.5 (357 )
30.0 ( 60.0)
28.0 ( 56.0)
110.5 (221 )
392
458
413
485
678
246
316
600
568
450
160
463
330
2432
782
463
2054
*  BOD5 only, TSS RWL Flow = 258 kl/kkg(61.8 kgal/ton)
                                   663

-------
                               o o o o o o
                   oocooooicricoiOLoioooooi — CM en
                                              oo oo ro LO CM o
                            OOOOOO
                                                        CMr— OOO
                   Loo^-cr>cn*d-<3-O
                   lO«d-COCMC\I«3-CMCMCMOi —
                   OOOOOOOOOOOOOOOOO
a:
o
oo
t—«
CO

3
         LT>
O
CQ
                         f—moor—
                                                                           c
                                                                           o
                                                                           -p
•CMCMOOOOOOCMCM«^-Lr34->i— et    CcOtO
                                     l— U.O4-
-------
             TABLE  219
     BLEACHED KRAFT MILLS
BEST OF THE BEST MILLS ( mg/L)

Mill
- — -
101
130
119
117
112
105
106
107


Subcategory
Fine-Mkt
Mkt
Fine
BCT
Fine
BCT
Fine-Mkt
Fine-Mkt


Treatment
C-ASB-PS
SB-ASB
C-A
C-ASB
C-ASB-C
C-ASB-PS
C-ASB-PS
C-A-PS
Average
Raw
Waste
BOD5
186
120
240
146
224
224
204
264
201

Final
BOD5
9
11
11
12
13
16
18
18
13.5

Effluent
TSS
I •<•/«••*
13
25
33
25
139N
.
20
71
31
               66.

-------
mg/1  as  discussed  in  Section  VII.   In addition to TSS reduction,
approximately 20% to 25% of the BOD5 is removed  by  filtration.   The
effluent  limitations were thereby based upon 15 mg/1 BOD5 and 10 mg/1
TSS.

Market Kraft Subcategory

The market kraft subcategory raw waste load was essentially based upon
three mills, 130, 114, and 140.  Mills 140 and 139 have  flow  volumes
of  79.2  kl/kkg  (19.0  kgal/ton)  and  85.1  kl/kkg  {20.4 kgal/ton),
respectively.  The other market  kraft  mills  cannot  necessarily  be
expected  to  achieve these flow values and thereby the flows used for
BATEA limitations were based upon mill 114 which had a flow  of  172.6
kl/kkg  (41.4  kgal/ton).  Evaluation of the internal, controls in use
by mill 114 resulted in estimates of flow  reductions  of  about  29.2
kl/kkg (7.0 kgal/ton).  The BODj> raw waste load was based on mills 130
and 140.  Evaluation of the inplant controls in use at mills 114, 130,
and 140 resulted in estimates that BOD5 reductions of 5.0 kg/kkg (10.0
Ibs/ton)   could  be achieved by BATEA internal controls not yet in use
by mill 130 and that the BOD5_ levels were achievable  as  demonstrated
by  mill  140.   The  estimated  raw  waste  loads  for BATEA were the
following:

                 Flow:   141.8 kl/kkg  (34.0 kgal/ton)
                 BOD5:   26.5 kg/kkg  (53.0 Ibs/ton)
                 TSS:    65.0 kg/kkg  (130 Ibs/ton)


The above estimated raw waste load is similar to that presently  being
achieved by mill 185 as shown in Table 51 in Section V.  The raw waste
flow  at  mill  185  is presently 143 kl/kkg (34.2 kg/kkg) and the raw
waste BOD5 is presently 32.4 kg/kkg (64.7  Ibs/ton).   Application  of
BATEA  inplant  controls not presently in use at mill 185 should allow
the mill to achieve a raw waste load lower than the  above  BATEA  raw
waste  load.   The  effluent  limitations for BATEA were based upon 10
mg/1 TSS and 14 mg/1  BODj>  in  conduction  with  141.8  kl/kkg  (34.0
kgal/ton).    As   discussed   previously,  the  capabilities  of  the
coagulation and  filtration  systems  results  in  levels  of  TSS  in
effluents  of  5  - 10 mg/1 TSS.  The average of mill 130 and mill 114
final effluent BOD5 values was 18  mg/1.   Application  of  filtration
technologies  will  reduce  effluent BOC5 by approximately 20% to 25%.
The BODJ5 effluent limitations were thereby based upon  14  mg/1.   The
subcategory  average  BOD5  raw  waste  load  is  187 mg/1 whereas the
average of mills 130 and 114 is 235  mg/1  indicating  that  the  BODS^
levels are achievable.

Bleached Kraft - BCT Papers Subcategory

The  BCT  Papers  Subcategory  raw  waste load was based upon mill 111
which had the following flow, BOD5, and TSS raw waste  loads:

                 Flow:   134.7 kl/kkg  (32.3 kgal/ton)
                 BOD5:   30.8 kg/kkg  (61.6 Ibs/ton)
                 TSS:    51.5 kg/kkg  (103 Ibs/ton)
                               666

-------
The internal controls presently in use by mill 111 are shown below:

         Knots collection and disposal
         Decker filtrate for brown stock washer showers
         Jump stage countercurrent washing
         Evaporator surface condenser
         Evaporator boilout tank
         Alarms on chemical tanks
         Paper machine vacuum saveall
         Paper machine high pressure showers
         Paper machine white water showers
         Vacuum pumps seal water reuse
         Pulp mill spill collection from tanks, equipment, and drains
         Mechanical conveyor for log transport
         Fourth stage fcrown stock washer
         Close-up screen room
         Causticizing area spill collection system
         Evaporator condensate for causticizing makeup
         Lime mud storage pond
         Cooling water segregation and reuse
         Paper mill stock spill collection system
         Pulp mill spill collection from washers

Evaluation of the internal controls in use by mill 111 in relationship
to the present raw waste loads  and  estimating  the  raw  waste  load
reductions possible by installation of any BATEA internal technologies
not  used by mill 111 and by more intensive process control to further
reduce impacts or raw waste load resulted  in  the  estimates  of  RWL
reductions for mill 111 are given below.

                 Flow:   20.9 kl/kkg  (5.0 kgal/ton)
                 BOD5:   5.0 kg/kkg (10.0 Ibs/ton)
                 TSS:    5.0 kg/kkg (10.0 Ibs/ton)

Thus,  the  RWL  for the BCT Papers Subcategory used in developing the
BATEA effluent limitations and the costs of achieving the  limitations
are the following:

                 Flow:   112.6 kl/kkg  (27.0 kgal/ton)
                 BOD5:   26.0 kg/kkg  (52.0 Ibs/ton)
                 TSS:    46.5 kg/kkg  (93.0 Ibs/ton)

The  BATEA  effluent  limitations were based upon 10 mg/1 TSS, 15 mg/1
BOD5, and 112.6 kl/kkg  (27.0 kgal/ton) as shown in Table 218.  Use  of
coagulation  and  filtration systems treating the biological treatment
effluent will achieve at least 10 mg/1 TSS  as  discussed  in  Section
VII.   Mills  117 and 105 are presently achieving BOD5 effluent levels
of 16 mg/1 and 12 mg/1, respectively, with an average of 14 mg/1.  The
average BOD5 raw waste for mills 117 and 105 is 185 mg/1  whereas  the
subcategory  average  is 231 mg/1.  Because the average raw waste load
for mills 117 and 105 is less than the subcategory average,  the  BOD5_
effluent  limitations were based upon 15 mg/1 which takes into account
a 20% to  25%  reduction  in  BOD5_  achieved  by  the  application  of
filtration technologies.
                            667

-------
Bleached Kraft - Fine Papers Subcategory

The  bleached kraft fine papers subcategory raw waste loads which were
used in determining the BATEA effluent limitations and  the  costs  of
achieving  the  limitations  were  based  upon  mill 119 which had the
following RWL:

                 Flow:   97.2 kl/kkg (23.3 kgal/ton)
                 BODJ5:   23. a kg/kkg (46.7 Ibs/ton)
                 TSS:    46.5 kg/kkg (92.9 Ibs/ton)

The internal controls presently in use by mill 119 are shown below:

         Knots collection and disposal
         Decker filtrate for brown stock washer showers
         Jump stage countercurrent washing
         Evaporator surface condenser
         Evaporator boilout tank
         Black liquor storage tank spill collection
         Vacuum pumps seal water reuse
         Alarms on chemical tanks
         Paper machine high pressure showers
         Paper machine white water showers
         Use of steam in drum barkers
         Fourth stage brown stock washer
         Close-up screen room
         Pulp mill spill collection from washers
         Pulp mill spill collection from tanks, equipment, and drains
         Causticizing area spill collection system
         Evaporator condensate for causticizing makeup
         Lime mud storage pond
         Cooling water segregation and reuse
         Paper mill stock spill collection system

Evaluation of the internal controls identified  in  Sections  VII  and
VIII  as  BATEA and those presently in use by the mill showed that the
mill was already achieving effluent raw waste loads representative  of
the  BATEA.  Thus, the BATEA effluent limitations were based upon mill
119 and, the mill's RWL were rounded to the following:

                 Flow:   95.9 kg/kkg (23.0 kgal/ton)
                 BODJ5:   23.5 kg/kkg (47.0 Ibs/ton)
                 TSS:    46.5 kg/kkg (93.0 Ibs/ton)

The  BOD5  and  TSS  concentrations  on  which  the   BATEA   effluent
limitations  were  based  were 15 mg/1 and 10 mg/1, respectively.  The
TSS level of 10 mg/1 has been discussed previously.  The BOD5 effluent
limitations  were  based  upon  evaluation  of  the  effluent    levels
presently  being  achieved  by the following mills in conjunction witt
the application of filtration technologies which remove 20% to 25%  of
the remaining BOD_5.

                                       Raw Waste      Final Effluent
          Mill          Treatment      EOD5  (mg/1)    BODS  (mg/1)

-------
          101           C-ASB-PS         186              9
          119           C-A              240             11
          112           OASB-C          224             13
          106           C-ASB-PS         204             18
          107           C-ASB-PS         264             18

          Average                        224             14

The average subcategory raw waste load is 245 mg/1 whereas the average
of  above mills is 224 mg/1.  The BOD5 effluent limitations were based
upon 15 mg/1 which takes into account the  differences  in  raw  waste
load   and   the   BODJ5  reductions  associated  with  the  filtration
technologies.

Color Limitations

The  color  effluent  limitations  were  based  upon  the  color  data
presented in Table 49 in Section V.  Analysis of the data in the table
shows  four  significant  levels  of color:  (1) Dissolving kraft,  (2)
Market kraft,  (3) BCT Papers, and  (4)  Fine  Papers.   The  raw  waste
color  loads for the above subcategories are the following: 415 kg/kkg
(830 Ibs/ton) , 310 kg/kkg (620 Ibs/ton) , 225 kg/kkg  (450 Ibs/ton) , and
150 kg/kkg  (300 Ibs/ton), respectively.  It should be pointed out that
the data used in determining these color RWL is the highest of  stream
09  or  stream 79 data per mill in Table 49.  The dissolving kraft and
market kraft RWL were based upon  mills  127  and  114,  respectively,
whereas  the  BCT  RWL  was based upon mills 105, 125, and 117.  Mills
101, 110, 106, 116, and 119 were  used  as  the  basis  for  the  fine
paper's RWL.

As identified in Sections VII and VIII, the "minimum lime" process for
color  removal was suggested for application to the caustic extraction
effluent and a portion of the decker effluent.   Color  data  obtained
from  surveyed  mills  were  insufficient  to establish reliable color
values for those streams.  As discussed in Section VII,  however,  the
minimum  lime  process  can  attain a  90 to 94 percent color reduction
(260)  (261).  Comparable streams treated by the massive  lime  process
can achieve similar results  (247).

At  these   levels  of  color  reductions  in the extraction and decker
effluents, total mill raw waste color  is  reduced  approximately  72%
(232).  By BATEA internal controls such as extensive spill control and
more  efficient  liquor  recovery,  it  is estimated that at least 10%
additional color reduction will occur.  Thus, minimum lime  and  BATEA
controls  should  reduce  raw waste color loads by over 80%.  Applying
QQ% reduction to the subcategory RWL given above resulted in the color
values based upon annual averages.  Variability factors of 1.5 and 3.0
which  were  based  upon  full  scale  operations  of  color   removal
technologies  at  kraft  mills  for  maximum  30  consecutive days and
maximum day to annual average, respectively, were  used  to  determine
the effluent limitations.  The RWL used in calculating the limitations
for  BCT  and  Fine  sutcategories  was  based  upon 212.5 kg/kkg  (425
Ibs/ton) which was an  average  of  six  mills  manufacturing  various
proportions of BCT papers, fine papers, and market pulp.  This RWL was

                               669

-------
used  because  of  the  relatively  large range of color RWL for mills
producing varying proportions of fine papers and market pulp.

Soda Subcategorv

The soda subcategory raw waste load used in developing  costs  and  in
determining  the  BATEA  effluent limitations was based upon mills 151
and 152.  The average flow for mill 151 and the average BODJ5  RWL  for
mill 152 are shown below:

                 FLow:   117.6 kl/kkg  (28.2 kgal/ton)
                 BOD5:   34.0 kg/kkg (68.0 Ibs/ton)

Evaluation  of  the  internal  controls  used at these mills and those
additional internal controls  identified  in  Section  VIII  as  BATEA
resulted in the following estimates of flow and BOD5_ reductions:

                 Flow:   20.85 kl/kkg  (5.0 kgal/ton)
                 EOD5:   4.0 kg/kkg    (8.0 Ibs/ton)

The TSS RWL demonstrated by mill 150 was used as the basis for the TSS
RWL  even  though mill 150 has closed because TSS data was unavailable
for mill 151 and mill 152 had very high TSS losses.   The resulting RWL
used in determining the BATEA effluent limitations and costs are given
below:

                 Flow:   95.9 kl/kkg (23.0 kgal/ton)
                 EOD5:   30.0 kg/kkg (60.0 Ibs/ton)
                 TSS:    65.0 kg/kkg (130 Ibs/ton)


As discussed previously in Section VII, the  application  of  internal
controls  are  generally  specific  for the reduction of one pollutant
parameter (BOD5 and TSS) or for the reduction of flow.  However, there
are controls, such as use of the decker filtrate on  the  brown  stock
washers,  that  reduce  both  flow and BOD5.  These points are briefly
discussed here in support of the determination of the soda subcategory
RWL which used three mills as  the  basis  for  the  three  respective
parameters.  The internal controls for TSS reduction are very specific
for  reduction  of  the loss of TSS and thus it would be expected that
relationships between TSS and flow or BOD5 would not generally  exist.
Similarly,  inplant  controls can be applied which reduce flow without
impacting BOD5   (i.e.,  cooling  water  segregation)  or  reduce  BODJ5
without  impacting  flow   (i.e.r more efficient liquor recovery).  The
wide variations in the RWL from the  soda  mills  indicates  that  the
inplant  controls  at  each of the mills are specific for reduction of
one of these parameters.   Thus,  application  of  the  BATEA  inplant
controls  would  reduce  the  RWL  to  at  least  the level of control
indicated by the flow, BOD5, and TSS levels presently achieved by  the
three respective mills.  Further support for this analysis is that the
estimated  BATEA  RWL  for  the  soda  subcategory  are similar to the
bleached kraft fine papers subcategory RWL as would be expected  since
the  manufacturing  processes  are  similar  at  mills  within the two
subcategories.
                              670

-------
Mill 152 presently achieves 28 mg/1 BOD5 with an aerated stabilization
basin of five days of detention time.  Increasing the  extent  of  the
biological  treatment  will  probably  be  necessary  for  mill 152 to
achieve BPCTCA TSS limitations and in so doing improved BODj> reduction
should occur.  The BATEA limitations are based upon BODj> levels of  15
mg/1  as  demonstrated  by bleached kraft mills.  The level of 15 mg/1
wag selected as a conservative estimate of  the  capabilities  of  the
BATEA   external   technologies  including  biological  treatment  and
coagulation and filtration.  It should be pointed out that the average
of the top eight bleached kraft mills was 13.5 mg/1 as shown in  Table
219.   The  TSS  effluent  limitations  were  based  upon  10  mg/1 as
discussed previously for the bleached kraft subcategories.

The color limitations for the soda subcategory were the  same  as  the
bleached  kraft  BCT  and  fine  papers subcategories because the soda
manufacturing process is similiar to these two subcategories and color
raw  waste  load  data  was  not  available  for  mills  in  the  soda
subcategory.

Groundwood Suhcategories

GW:  Chemi-Mechanical Subcategory

The  raw  waste  load  for  the  chemi-mechanical  subcategory used in
determining the BATEA effluent limitations and the  costs  were  based
upon  mill  001  which  had  the  following  RWL  after  adjusting for
purchased pulp:

                 Flow:   84.7 kl/kkg (20.3 kgal/ton)
                 BOD5:   48.5 kg/kkg (97.0 Ibs/ton)
                 TSS:    23.3 kg/kkg (46.6 Ibs/ton)

More recent data for mill 001 has shown significant decreases in  flow
accomplished  by  in  plant control measures and was used as the basis
for the BATEA RWL.  BOD5 data was  unavailable  for  the  most  recent
period  but  it  is  estimated  that  BOD5  would  be  reduced  by the
additional BATEA internals by 3.5 kg/kkg  (7.0 Ibs/ton).  The BATEA raw
waste load for mill 001 is given below:

                 Flow:   75.1 kl/kkg (18.0 kgal/ton)
                 BOD5:   45.0 kg/kkg (90.0 Ibs/ton)
                 TSS:    22.5 kg/kkg (45.0 Ibs/ton)

The groundwood chemi-mechanical limitations are based upon 100% chemi-
mechanical production; therefore, contributions  from  purchased  pulp
and  waste  paper  were  removed.   Calculating  the RWL due to chemi-
mechanical pulp and paper  manufacturing,  the  basis  for  the  BATEA
limitations was derived.

              Flow:  91.3 kl/kkg  (21.9 kgal/ton)
              BOD5:  79.5 kg/kkg  (159 Ibs/ton)
              TSS:   22.5 kg/kkg  (45 Ibs/ton)

During  the  most  recent  data  period   for which  data were available
 (April through August 1974), mill 001 has achieved  an average  of  5.6
                              671

-------
mg/1  BOD5  and 10.9 mg/1 TSS with a treatment system consisting of ai
aerated   stabilization   basin   followed   by   chemical   addition
coagulation,  and  clarification.  The BATEA effluent limitations wer
based upon a reduction in the BOD5 concentration from 35 mg/1  (BPCTCA
to 30 mg/1  (estimated  concentration  for  the  best  mill)  and  th
addition  of  filtration  to achieve final effluent concentrations fo
BODJ5 of 24 mg/1 and TSS of 10 mg/1.  These values  are  based  upon
100% chemi-mechanical pulp and paper process.

GW:  ihermo-mechanical Sutcategory

The  thermo-mechanical  subcategory  raw  waste  load  was  based up<
estimates BOD5 loads for companies starting new mills and waste  wat<
data  developed  from  thermo-mechanical  mills in Sweden.  Data for
thermo-mechanical mill in Sweden showed flows and BOD5 loads  of  17.
to  27.2  kl/kkg  (4.1 to 6.6 kgal/ton) and 21.3 kg/kkg  (42.5 Ibs/toi
were reported.  Since the thermo-mechanical process will be  install*
at  existing GW Fine and CMN mills, the higher flow rate of GW CMN w«
transferred to the thermo-mechanical subcategory.   Modified  existii
plants  are  not expected to be able readily achieve the flow rates <
the new thermo-mechanical mills in Sweden.  The following   RWL  valu<
were  therefore  selected  as  conservative  estimates  of  the thermc
mechanical subcategory RWL:

                 Flow:   78.3 kl/kkg  (19.0 kgal/ton)
                 BOD5:   26.5 kg/kkg  (53.0 Ibs/ton)
                 TSS:    25.0 kg/kkg  (50.0 Ibs/ton)

There are very few mills in this country presently using  the  thermc
mechanical pulping process and effluent data is not available from ar
mill operating biological treatment facilities which has a  significai
portion of the total pulp production produced by the thermo-mechanic?
process.    As  demonstrated  by  mill  001  in  the  chemi-mechanicc
subcategory which has a substantially  higher  RWL  of  529  mg/1  ai
achieves  a  final  effluent  BODJ5 of 5.6 mg/1  (based upon  5 months  <
data, April thru August) using  biological  treatment  followed  by
clarifloculator,   and   by   several  mills  in  the  bleached  kra:
subcategories wi.ere  effluent  BOD5  qualities  of  10  -17  mg/1  a:
achievable  with  biological  treatment  and  thereby  the  BOD5_ BAT:
effluent limitations were based upon  15  mg/1.   The  TSS   limitatio
were based upon 10 mg/1 as discussed previously.

GW:  Fine Papers Sutcategory

The groundwood:  fine papers subcategory raw waste  load was based up
mill  13  which  had  a  flow of 83.0 kl/kkg  (19.9 kgal/ton) and a r
waste BOD5 of 13.5 kg/kkg  (27.0 Ibs/ton).  Two mills, 19 and   21,  h
flows  less  than mill 13 but the C & F content of  their final produ
was 35% and 20%, respectively, which could have the effect  of  loweri
their water use per kkg  (ton) of product.  Thus, the BATEA  flow  ra
was  based  upon  mill 13.  Evaluation of the inplant controls used
mill 13 and those additional controls identified as BATEA   in  Secti
VIII  result  in  estimating  that  74.9  kl/kkg   (18.0  kgal/ton) w
achievable.  Because mill 13fs BOD5 of 13.5 kg/kkg  (27.0 Ibs/ton)  w
significantly  lower than the other mills with  10-15% C & F, the BAT
                           672

-------
raw waste BOD5 and TSS were estimated by the internal controls used by
mill 005 which used 10% C & F were evaluated.  It was  estimated  that
the  additional BATEA controls identified in Section VIII would reduce
the average BOD5 to 16.0 kg/kkg (32.0 Its/ton).   The  TSS  raw  waste
load was based on an estimate involving the TSS reduction capabilities
of the BATEA internal controls upon the average BPCTCA raw waste load.
It  was  estimated that the added controls could achieve at least 45.0
kg/kkg (90.0 Ibs/ton).  Thus, the BATEA RWL are the following:

              Flow:  74.9 kl/kkg  (18.0 kgal/ton)
              BOD5:  16.0 kg/kkg  (32.0 Ibs/ton)
              TSS:   45.0 kg/kkg  (90.0 Ibs/ton)

Data for mill 005 shows  that  13  mg/1  BODJ3  and  21  mg/1  TSS  are
presently  being  achieved  by the mill's aerated stabilization basin.
Addition of filtration systems will  further  decrease  these  levels.
The  BATEA  effluent  limitations were thereby based upon 13 mg/1 BOD^
and 10 mg/1 TSS.

GW:  CMN papers Subcategory

The groundwood:  CMN papers subcategory was based upon an  average  of
mills  009  and  014  raw  waste  loads because of the relatively wide
spread between the raw waste loads, i.e. mill 009's flow and BOD5  RWL
was 52.9 kl/kkg (12.7 kgal/ton) and 19.6 kg/kkg  (39.2 Ibs/ton) whereas
mill  014 «s RWL was 107.6 kl/kkg  (25.8 kgal/ton)  and 12.0 kg/kkg  (24.0
Ibs/ton) .  Evaluation of the in plant controls used by these mills and
those BATEA internal controls identified in Section VIII  resulted  in
selection of the following RWL:

                 Flow:   79.0 kl/kkg  (19.0 kgal/ton)
                 BODJ5:   16.0 kg/kkg  (32.0 Ibs/ton)
                 TSS:    45.0 kg/kkg  (90.0 Ibs/ton)

Since  none  of  the mills in the GW:  CMN Subcategory have biological
treatment,  the  BOD5  concentration  used  for  the   BODj>   effluent
limitations   was  based  upon  mill  014  in  the  GW:   fine  papers
subcategory which was  achieving  13  mg/1  BOD5.   The  TSS  effluent
limitation was based upon 10 mg/1 as discussed previously.

Groundwood subcategories Zinc Limitations

The  zinc  limitations for the groundwood subcategories are based upon
the BATEA flow values and 0.35 mg/1 zinc as in the BPCTCA limitations.

Sulfite Subcategories

Papergrade Sulfite Subcategory

The BATEA raw waste load for the  papergrade  sulfite  subcategory  was
based  upon  mill  062 which had  raw waste flow  and BOD5 values of 193
kl/kkg (46.2 kgal/ton) and 74.5 kg/kkg   (149  Ibs/ton),  respectively.
Mill  062  was  determined  to  be  the most representative papergrade
sulfite mill using BATEA  inplant  controls,  some  of  which  include
vacuum  drum  pulp washing, full  SSL recovery, and surface condensers.
                           673

-------
Evaluation of the inplant controls in use  by  mill  062  and  furthe:
possibilities  of  RWL  reduction  by  installation  of BATEA interna.
controls not in use by mill 062 resulted in the following BATEA RWL:

             Flow:   167 kl/kkg (40.0 kgal/ton)
             BOD5:   75.0 kg/kkg (150 Ibs/ton)
             TSS;    75.0 kg/kkg (150 Ibs/ton)
The above TSS  RWL  was  based
unavailable from mill 062.
upon  mill  066  since  TSS  data  wa
The  effluent  limitations were based upon BOD5 and TSS concentratioi
of 30 mg/1 and 10 mg/1, respectively.  The application  of  filtratic
technologies  achieves  TSS  levels in final effluents of 5 to  10 mg/
and removes 20-25% of the remaining BOD5.

Improved operation of the  biological  treatment  facilities  and   tl
application  of  filtration  technologies  should  allow effluent BO1
levels of 30  mg/1  to  be  achieved  as  shown  by  the  relations!*.'
determined in Section VII.  While some mills have stated that BOD5_  R\
of  75,0 kg/kkg  (150 Ibs/ton) will be difficult to achieve even thou<
mill 062 is presently achieving that level, the  mills  can  use mo:
effective  external  treatment  to  achieve  the effluent limitation;
This is demonstrated by mill 053 which has a BOD5 RWL of  96.0   kg/kl
(192  Ibs/ton)   and achieves a final effluent BOD5> of 3.45 kg/kkg  (6.
Ibs/ton) using effective  primary  and  biological  treatment   systei
which  is  substantially  less than 5.0 kg/kkg  (10.0 Ibs/ton) on whi<
the effluent limitations were based.

Papergrade Sulfite Market Pulp Subcategory

The BATEA raw waste  load  for  the  papergrade  sulfite  market pu.
subcategory  was based upon evaluation of the internal controls in  u
by mill 056 and  estimating further reductions  associated  with BAT
internal controls not presently in use by mill 056.  The BATEA  RWL  a:
shown below:

             Flow:   188 kl/kkg  (45.0 kgal/ton)
             BOD5:   100 kg/kkg  (200 Ibs/ton)
             TSS:    30 Ibs/ton  (60 Ibs/ton)

The  BOD5_  and TSS effluent limitations were based upon 30 mg/1 and
mg/lr respectively, as discussed  above  for  the  papergrade   sulfi
subcategory.

Low Alpha Dissolving Sulfite Pulp Subcategory

The  BATEA  raw  waste  load for the low alpha dissolving sulfite pv
subcategory was  based upon an evaluation of the  inplant  controls
use  at mill 512 and an estimation of the RWL reductions that could
achieved by application of BATEA inplant controls not presently in  i;
by mill 512.  The present RWL at mill 512 was the following:

              Flow:   203 kl/kkg  (48.6 kgal/ton)
              BOD5:   136.5 kg/kkg  (273 Ibs/ton)
                           674

-------
The above evaluation resulted  in  the  following  reductions  in  the
present RWL at mill 512:

              Flow:   19.2 kl/kkg (4.6 kgal/ton)
              BOD5:   21.5 Ibs/ton (43.0 Ibs/ton)

Thus,  the  BATEA  RWL  for  the  low  alpha  dissolving  sulfite pulp
subcategory were the following:

              Flow:   183 kl/kkg (44.0 kgal/ton)
              BOD5:   115 kg/kkg (230 Ibs/ton)

The BATEA RWL TSS was based upon mill  511  since  TSS  data  was  not
available for mill 512.  The TSS RWL was 85.0 kg/kkg  (170 Ibs/ton).

The  BOD5  and TSS effluent limitations were based upon 35 mg/1 and 10
mg/1, respectively.   As  discussed  previously,  the  application  of
filtration technologies results in TSS levels of 5 to 10 mg/1 in final
effluents  and a 20 to 25% reduction in BOD5,  An extensive biological
treatment pilot plant operation at mill 512  resulted  in  an  average
final  effluent  BOD5  concentration  of  47  mg/1.   The relationship
determined in Section VII, the pilot plant data, and  the  application
of filtration shows that a level of 35 mg/1 BOD£> is achievable.  Thus,
the BOD5 final effluent concentration of 35 mg/1 was used as the basis
of the effluent limitations.

High Alpha Dissolving Sulfite Pulp Sutcategory

The  BATEA  raw  waste load for the high alpha dissolving sulfite pulp
subcategory was based upon mill 403 which is presently the one mill of
the three in the subcategory which has full SSL recovery using  vacuum
drum  washing  and surface condensors.  The present RWL at mill 403 is
shown below:

              Flow:   258 kl/kkg (61.8 kgal/ton)
              BOD5:   244 kg/kkg (487 Ibs/ton)

Evaluation of the inplant controls in use by mill 403  and  estimating
the  RWL reduction associated with the application of additional BATEA
controls not presently in use by the mill resulted  in  the  following
BATEA RWL:

              Flow:   172 kl/kkg (41.2 kgal/ton)
              BOD5:   212.5 kg/kkg (425 Ibs/ton)

The  BATEA  controls  at  mill 403 include segregation of BODji bearing
streams from TSS bearing streams and cooling waters.  The  above  flow
estimate accounts for the BOD5 bearing streams.

The  fiber  bearing streams not containing appreciable amounts of BODj[
are  estimated  to  be  85.9  kl/kkg   (20.6  kgal/ton)  which  is  the
difference  between the present RWL flow and the above BATEA flow.  In
addition, it is estimated that 85.9 kl/kkg   (20.6  kgal/ton)  of  non-
contact cooling waters are discharged from mill  403.
                              675

-------
The  BOD5  and TSS effluent limitations were based upon 45 mg/1 and 10
mg/1,  respectively.   The  application  of  filtration   technologies
results  in  TSS  levels  in  the  final effluents of 5 to 10 mg/1 and
reduction of BOD5 by 20 to 25%.  The BOD^  BATEA  RWL  is  1,237  mg/1
which  is  higher  than  the BPCTCA RWL of 986 mg/1.  The relationship
determined in Section VII between  influent  BODjj  concentrations  and
effluent  BOD5  concentrations  for  biological  treatment  systems at
sulfite mills shows that 62  mg/1  BOD5  would  be  achieved  with  an
influent  BOD5_  of  1,237  mg/1.  Improved operation of the biological
treatment facilities should allow a final BOD5 of 60 mg/1 or  less  to
be  achieved  and application of filtration technologies should reduce
the final effluent BOB5 to  at  least  45  mg/1.   The  BOD5_  effluent
limitations were determined using 45 mg/1 and the above BATEA RWL flov
of  172  kl/kkg  (**1.2  kgal/ton) whereas the TSS effluent limitations
were determined using 10 mg/1 and the above BATEA flow plus  the  flot
representing  the fiber bearing streams which equaled 258 kl/kkg  (61.8
kgal/ton) .

Deink Subcategory

The deink subcategory flow  used  as  the  basis  for  BATEA  effluenl
limitations  was  based  upon  mill  217 which deinks all of its pulp.
However, the use of 25% clays and fillers in the paper by mill 217 ma\
result in a lower flow  (kl/kkg   (kgal/ton)  than  deink  mills  makinc
tissue  papers.   Since the use of clays and fillers do not contribute
significantly to flow. Mill 217 «s flow of 55  kl/kkg  (13.2  kgal/ton)
was  recalculated  excluding  clays and fillers from the production ir
order to be comparable to mills producing tissue papers which  do  no!
use  clays and fillers.  The resulting flow value for mill 217 is 73.'
kl/kkg  (17.6 kgal/ton).  As discussed in  Section  V,  the  deink  ra\
waste  BOD5  and  TSS are related to the type of waste paper used, anc
therefore BATEA BOD5 and TSS raw waste loads used were the  same  usec
as for BPCTCA.  Thus, the BATEA RWL are the following:

              Flow:  73.4 kl/kkg  (17.6 kgal/ton)
              BODJ5:  82.5 kg/kkg  (165 Ibs/ton)
              TSS:   178.5 kg/kkg (357 Ibs/ton)

The  BATEA effluent limitations were based upon BOD5 and TSS levels o:
20 mg/1.  This level of BOD5 and TSS takes into account the  high  RW:
and the variabilities of RWL associated with deinking operations.

Non-Integrated Paper Mills Segment

N.I. Fine Papers Subcategory

The  Nl  fine  papers   sufccategories raw waste loads were developed b
evaluation of the raw waste loads at  10  mills  in  relation  to  th
extent  of internal controls at each mill.  Since flow is an indicate
of the extent of in plant controls at NI paper mills, the mills  whic
achieved lower flow rates than the BPCTCA average of 62.4 kl/kkg  (15.
kgal/ton) were arranged in ascending order as shown below:

          Mill           Flow               BOD5              TSS
                    kl/kkg (kgal/ton)  kg/kkg  (Ibs/ton)  kg/kkg  (Ibs/
                            676

-------
          284          25.8  (6.2)       7.6    (15.2)      30.4    (60.7)
          261          26.3  (6.3)       8.7    (17.3)        -     (  -  )
          279          37.5  (9.0)        -     ( - )         -     (  -  )
          255          37.9  (9.1)        -     ( - )         -     (  -  )
          272          37.9  (9.1)      10.9    (21.8)        -     (  -  )
          276          39.2  (9.4)      19.2    (38.3)      38.5    (76.9)
          257          40.0  (9.6)       9.2    (18.3)        -     (  -  )
          266          49.2  (11.8)     12.8    (25.6)      (22.9)   (45.7)
          250          53.8  (12.9)       -     ( - )         -     (  -  )
          402          57.5  (13.8)      7.5    (15.0)      (43.6)   (87.1)

           Ave         40.4   (9.7)     10.8    (21,6)      33.8    (67.6)

Examination  of  the flow values above show two definite  breaks,  below
37.5 kl/kkg  (9.0 kgal/ton) and above 40.0 kl/kkg  (9.6 kgal/ton).

The BATEA flow was thereby based upon an average of those mills within
that range, mills 279, 255,  272, 276, and 257.  The average flow  rate
was 38.3 kl/kkg  (9.2 kgal/ton) which was used  in determining  the  BATEA
effluent  limitations  and   in determining  the costs.  The BATEA BOD5
raw waste load of 9.5 kg/kkg  (19.0 Ibs/ton) was based upon an   average
of  all  the  mills  presented above excluding mill 276 whose  BOD5_  was
much higher than all of the  other values.  Because of a lack of  data,
the  BATEA  TSS  raw  waste  load  of  30.0  kg/kkg  (60.0 Ibs/ton)  was
essentially the same as the  BPCTCA TSS raw waste load.  It  should  be
noted  that this estimate was used for purposes of developing  costs of
the BATEA external controls  and  does  not  necessarily  reflect  the
capabilities of the BATEA internal controls.

The  BATEA  effluent  limitations  were  based upon  38.3 kl/kkg (9.2
kgal/ton)  and  BOD5  and  TSS   levels  of  20 mg/1  and  10    mg/1,
respectively.   BOD5  levels  of  10  -  17 mg/1 have been shown  to be
achievable by  mills  using  biological  treatment  systems   in  other
subcategories.   However,  the   effluent limitations were based upon  a
conservative 20 mg/1.  The rationale for the TSS level of 10 mg/1  has
been discussed previously.

NI Tissue Papers Subcategory

The  BATEA  raw  waste  load for the NJ tissue papers subcategory  was
developed in a similar manner as the NI fine   papers  subcategory  raw
waste  load.   The mills presently achieving lower flow rates  than  the
BPCTCA  average  of  95.7  kl/kkg   (23.0  kgal/ton)  were arrayed  in
ascending order as shown below:

          Mill         Flow               BOD5             TSS
                  kl/kkg  (kgal/ton)  kg/kkg  (Ibs/ton)  kg/kkg  (Ibs/ton)

          306      43.4  (10.4)         -      ( -  )        -      (  -  )
          252      48.0  (11.5)         -      ( - )        -      (  -  )
          302      50.9  (12.2)       11.8     (23.5)       -      (  -  )
          208A     61.3  (14.7)       22.9     (45.7)*   72.5     (145)
          315      66.3  (15.9)        8.7     (17.4)       -      (  -  )
          309A     69.6  (16.7)       14.7     (29.3)*      -      (  -  )
                             677

-------
          326      72.6 (17.4)          -     ( - )        -      ( - )
          259A     73.8 (17.7)         9.6    (19.2)    32,2     (64.3)

        Ave        60.5 (14.5)        10.0    (20.0)      -      ( - )

        *Not included in average

The BATEA flow was thus an average of eight mills with better than the
BPCTCA  average flow rate.  The BOD5 of 10.0 kg/kkg  (20.0 Ibs/ton) was
based upon three of the above eight or.ills that were  achieving  better
than the average EPCTCA BOD5_ raw waste load were used as the basis for
the  BATEA BOD5 raw waste load.  The TSS raw waste load of 28.0 kg/kkg
(56.0 Ibs/ton) was based upon an average of mills 259A, 310,  and  308
whose TSS levels demonstrated relatively high control of TSS.

The  BATEA  effluent  limitations  were  based  upon 60.5 kl/kkg  (14.5
kgal/ton)   and  BOD5  and  TSS  levels  of  20  mg/1  and   10   mg/lr
respectively.   The rationale for selection of the BOD5_ and TSS levels
was as previously discussed for the NI fine papers subcategory.

NI Tissue Papers  (fWP) Subcategory

The NI Tissue Papers  (fwp) Subcategory BATEA flow was based  upon  the
average  of  the  best  two  mills  (of the four mills surveyed).  Flow
rates for mill 330, 79.2 kl/kkg (19.0 kgal/ton), and  mill  313,  27.9
kl/kkg  (6.7 kgal/ton) were averaged to obtain the BATEA flow basis  of
53.8 kl/kkg  (12.9 kgal/ton).  The BOD5 and TSS raw waste loads  used  in
developing the costs presented in Section VIII were based  upon  mills
330  and  313.  The BATEA effluent limitations are based upon BOD5 and
TSS levels of 20 mg/1 and 10 mg/1, respectively.   The  rationale  for
selection  of the BOD5 and TSS levels was previously discussed  for the
NI fine papers subcategory.
                              678

-------
                              SECTION XI


               NEK SOURCE PERFORMANCE STANDARDS  (NSPS)

INTRODUCTION

This level of technology is to be achieved by new sources.   The  term
"new  source" is defined in the Act to mean "any source, the construc-
tion of which is commenced after the publication of  proposed  regula-
tions prescribing a standard of performance."

The  New  Source  Performance  Standards   (NSPS) are predicated on the
application of the  Best  Available  Demonstrated  Technology  (BADT).
These  standards  are  thus  not  based  upon  an  average of the best
performance within a given subcategory  under  study,  but  have  been
determined  by identifying the best demonstrated control and treatment
technology employed by mills in given subcategory.  Consideration  was
also given to:

    a.   The type of process employed and process changes;
    b.   Operating methods;
    c.   The engineering aspects of the application of control
         technologies;
    d.   the cost of application (including energy requirements);
    e.   The non-water quality environmental impact;
    f.   Use of alternative raw materials and mixes of raw materials;
    g.   Use of dry rather than wet processes (including substitution
         of recoverable solvents for water);
    h.   Recovery of pollutants as by-products.


EFFLUENT  REDUCTIONS  ATTAINABLE THROUGH THE APPLICATION OF NEW SOURCE
PERFORMANCE STANDARDS

Based upon the information available to the Agency, the  point  source
discharge  standards  for each identified pollutant are shown in Table
220 and  can  be  attained  through  the  application  of  appropriate
internal and external control technologies.

The  average of daily values for 30 consecutive days should not exceed
the maximum 30 consecutive days average standards shown in Table  220.
The  value  for  any  one  day  should  not  exceed  the daily maximum
standards shown in the table.  The standards shown are in kilograms  of
pollutant per metric ton of production  (pounds of pollutant per ton  of
production).  Effluents should always be within the pH range of 5,0  to
9.0.

Production in kkg  (tons) is defined as annual  tonnage  produced  from
pulp  dryers   (in  the  case  of  market pulp) and paper machines  (for
paper/ board) divided by the number of production days in the 12-month
period.  Pulp production is to be corrected, if necessary, to the "air
dry" moisture basis.
                            679

-------
Subcategory
                                     TABLE 220
                        NEW SOURCE PERFORMANCE  STANDARDS
                               kg/kkg(1bs/ton)
Maximum 30 Day Average
Maximum Day
BOD5
Dissolving Kraft
Market Kraft
BCT Kraft
Fine Kraft
Papergrade Sulfite
Market Sulfite
Low Alpha
Dissolving Sulfite
High Alpha
Dissolving Sulfite
GW-Chemi -Mechanical
GW-Thermo-Mechanical
GW-CMN Papers
GW-Fine Papers
Soda
Deink
NI Fine Papers
NI Tissue Papers
NI Tissue Papers(FWP)
pH for all
Subcategory
GW:Chemi -mechanical
GW:Thermo-mechanical
GW:CMN Papers
GW:Fine Papers
6
2
3
2
4
4
11
13
3
2
2
1
3
3
1
2
1
.1 (12.2)
.65( 5.3)
.7 ( 7.4)
.55( 5.1)
.65( 9.3)
.65( 9.3)
.15(22.3)
.8 (27.6)
.9 ( 7.8)
.3 ( 4.6)
.0 ( 4.0)
.9 ( 3.8)
.15( 6.3)
.9 ( 7.8)
.35( 2.7)
.15( 4.3)
.9 ( 3.8)
8.
2.
5.
3.
2.
2.
10.
9.
3.
3.
3.
3.
4.
4.
1.
2.
1.
subcategories shall be within

Zinc *

TSS
35(16
9 ( 5
0 (10
75 ( 7
9 ( 5
9 ( 5
0 (20
45(18
3 ( 6
15( 6
15( 6
0 ( 6
3 ( 8
0 ( 8
4 ( 2
2 ( 4
95( 3
the

BOD
.7)
.8)
.0)
.5)
.8)
.8)
.0)
.9)
.6)
.3)
.3)
.0)
.6)
.0)
.8)
.4)
.9)
range

n
5
7
4
8
8
21
26
7
4
3
5
6
7
2
4
3
5.0 to

Maximum 30 Day Average
kg/kkg(lbs/ton)
0.048 (0.096)
0
0
0
.0455(0.091)
.0455(0.091)
.044 (0.088)












.75(23
.15(10
.05(14
.95( 9
.95(17
.95(17
.45(42
.5 (53
.5 (15
,45( 8
.85( 7
.6 ( 7
.0 (12
.5 (15
.6 ( 5
.15( 8
.7 ( 7
9.0.
.5)
.3)
.1)
.9)
.9)
.9)
.9)
.0)
.0)
.9)
.7)
.4)
.0)
.0)
.2)
.3)
.4)

TSS
15.5 (31
5
9
7
5
5
18
17
6
5
5
5
7
7
2
4
3

.35(10
.3 (18
.0 (14
.35(10
.35(10
.6 (37
.6 (35
.15(12
.85(11
.85(11
.6 (11
.95(15
.45(14
.6 ( 5
.1 ( 8
.65( 7

.0)
.7)
.6)
.0)
.7)
.7)
.2)
.2)
.3)
.7)
.7)
.2)
.9)
.9)
.2)
.2)
.3)

Maximum Day
kg/kkg(lbs/ton)
0.095 (0.19)
0.09
0.09
0.09
(0
(0
(0
.18)
.18)
.18)






         *Applicable only to mills using zinc hydrosulfite.
                                   680

-------
Performance standards will be established  for  ammonia  nitrogen  for
ammonia base mills in the sulfite and dissolving sulfite subcategories
at  a  later date.  No specific standard has been developed because of
the limited availability at this time of meaningful data.  Indications
are that discharges in the range of 1.0-3.0  kg/kkg  (2.0-5.0  Ib/ton)
can occur.  No technology for the removal of nitrogen has been applied
within the pulp and paper industry.

Performance  standards   for  color  established  for  BATEA  are  not
included for NSPS since the technology has not  been  demonstrated  to
the  degree  necessary in terms of engineering and performance for the
subcategories included in these regulations.


IDENTIFICATION OF TECHNOLOGY FOR NEW SOURCE PERFORMANCE STANDARDS

The technology available for New Source Performance Standards consists
of the Best Available Demonstrated Technology  (BADT)  which  includes
extensive  application  of  internal control technologies and external
waste water treatment practices as  identified  in  Sections  VII  and
VIII.   Technology  for  nitrogen  and  color  removal  has  not  been
demonstrated to the degree necessary for application to the  effluents
generated by mills in the pulp and paper industry.  Such technologies,
therefore,  are  not  included  among  those required to achieve NSPS.
BADT  technology  does   include   the   utilization   of   mechanical
clarification  and chemical coagulation equipment following biological
treatment and prior to discharge.  The effectiveness of this  external
technology has been demonstrated by at least one mill included in this
study.   It  should  be  pointed  out  that  filtration  of biological
treatment effluents is not included as a technology for  NSPS  because
filtration  of  biological  treatment  effluents  has  not  been fully
demonstrated  to  the  degree  necessary  at  this  time  for  general
application to new pulp and paper mills

Excluding  the  nitrogen and color removal technologies it is expected
that new source mills will be able to realize  maximum  efficiency  in
the application of Best Available Demonstrated Technology.  New source
mills  have  an  advantage  over  existing  mills in that implementing
internal control measures such as recovery, recycle, reuse, and  spill
control  systems  can  be  more  readily  incorporated  at the initial
engineering design stage than into existing mills.
RATIONALE FOR SELECTION  OF  TECHNOLOGY  FOR  NEW  SOURCE  PERFORMANCE
STANDARDS

Type of Process Employed and Process Changes

No  new  in-plant  processes  are proposed as a means of achieving New
Source Performance Standards for the sutcategories studied.   It  will
be  mandatory, however, to use the well-known concepts associated with
selective water use, cascading reuse, and water segregation  practices
at  the  engineering  design stage if NSPS are to be achieved by a new
production facility.


                              681

-------
Operating Methods

Significant revisions in operating methods, both in-plant and  at  th
waste  water  treatment  facility,  beyond those normally practiced
mills representative of BPCTCA will te necessary.  These  improvemen
are  not beyond the scope of well-trained personnel, and are current
being practiced in other industries.  The primary areas of operation
change will be in the assignment of supervisory responsibility for t
performance of recycle, reuse, and spill control systems, as  well
for achieving optimal performance of waste water treatment facilitie

Engineering Aspects of the Application of Control Technologies

Much of the technology to achieve these performance standards is pra
ticed  within  the  pulp  and paper industry by outstanding mills in
given  subcategory.   The  technology  level  of  the  best  availab
demonstrated  technology  will  necessitate  sophisticated monitorin
sampling, and control programs, as well as properly trained personne

Cost of Application Energy Reguirements)

The total projected costs of NSPS are shown in Tables 151 through  1
of  Section  VIII.   These  costs  include  both  internal control a
external waste treatment improvements incorporated in the  engineeri
design  of  the  plant.   They are based on 360 days of production p
year.

The energy reguirements associated with the application  of  polluti
control technologies are developed in Section VIII and shown in Tabl
197 to 201.
Non-water Quality Environmental Impact

The  technology  cited  will  not  create  any significant increase
odors, or in noise  levels  beyond  those  observed  in  well-design
municipal  waste  water  treatment  systems  which currently are bei
approved by the  federal  government  for  construction  in  populat
areas.   Further,  no hazardous chemicals are required as part of th
technology.  Further discussion of the non-water environmental impac
associated with the BADT is presented in Section VIII.

Use of Alternative Raw Materials and Mixes of Raw Materials

The raw materials reguirements  for  a  given  mill  in  each  of  t
subcategories  studied  do  vary,  depending  upon  supply and demar
desired end product, and other conditions.  However, alteration of r
materials as a means of reducing pollutants is not considered feasit
over the long term even though such a change  could  possibly  reali
benefits  of short duration in a given instance.  A possible except!
to this could be the  development  of  alternatives  for  the  use
ammonia as a base if an effective and economical method for removal
nitrogen does not become available through further study.
                            682

-------
Use  of  Dry  Rather  Than  Wet  Processes  (Including Substitution of
Recoverable solvents for Water)

For the subcategories studied, it was determined that  technology  for
dry  pulping  or  papermaking  processes does not exist nor is it in a
sufficiently viable experimental stage to be considered here.

Recovery of Pollutants as Byproducts

As discussed in Sections VII and VIII of this report, recovery of some
potentially  polluting  materials  as  by-products   is   economically
feasible  and  is  practiced  to a limited extent by mills included in
this study.  It is anticipated that these performance  standards  will
motivate  increased  research  on  recovering  other materials for by-
product sale the recovery  of  which  is  not  presently  economically
feasible.

RATIONALE FOR SELECTION OF NEW SOURCE PERFORMANCE STANDARDS

The  NSPS  are  based upon raw waste loads presently being achieved by
the best mill or mills within each subcategory and the application  of
the  best  available  demonstrated  technology   (BADT) presently being
operated by mills in each respective sutcategory.  Where no mills  are
operating  treatment  systems representative of BADT in a subcategory,
the standards are based upon the subcategories treating similar  waste
waters  and  using  technology representative  of BADT.  The NSPS were
determined use raw waste flow values and achievable effluent BOD5  and
TSS  concentrations  as  demonstrated  by the application of BADT.  In
determining the appropriate achievable BOD5 levels which were used  as
the  basis  of  the  BODji  standards,  the  raw waste BOD5 levels were
carefully evaluated in order to take into account any impacts  of  the
raw  waste BOD5 upon the final effluent BODf> levels.  The BADT for all
subcategories includes internal controls,  biological  treatment,  and
chemical  addition,  coagulation, and clarification technologies.  The
TSS NSPS were based upon an effluent level of 20 mg/1 which  has  been
demonstrated  to  be  achievable using chemical addition, coagulation,
and clarification technologies which also reduce the  BOD5>  levels  in
biological treatment effluents by 20 to 25%.

It  should  be  pointed out that no color standards were developed for
the bleached kraft and soda subcategories because  the  color  removal
technology has not been fully demonstrated at this time.  In addition,
the  TSS standards were based upon chemical addition, coagulation, and
clarification technologies instead of filtration,  because  filtration
technologies   treating  biological  treatment  effluents  which  were
included in BATEA have not been demonstrated in  the  pulp  and  paper
industry.

Tables  221  and 222 summarize for each subcategory the BADT raw waste
loads and the flow, BOD5, and TSS values used  as  the  basis  of  the
NSPS,  respectively.  The annual average values were multiplied by the
variability factors shown in Table  223  in  order  to  determine  the
maximum   30   consecutive   days  and  iraximum  day  standards.   The
determination of variability factors were discussed in Section VII.
                             683

-------
                                      TABLE 221
                             SUBCATEGORY RAW WASTE LOADS
                    BEST AVAILABLE DEMONSTRATED TECHNOLOGY
                                        (NSPS)
Subcategory
      FLOW
k1/kkg(kgal/ton)
     BOD5
kg/kkg(1bs/ton)
      TSS
kg/kkg(1bs/ton)   mg/
BK:Diss
BK:Mkt
BK:BCT
BK:Fine
Soda
GW:CMP
GW:TMP
GW:Fine
GW:CMN
Sulfite: Paper
Sulfite-.Mkt
Low Alpha
High Alpha
Deink
NI Fine
NI Tissue
NI Tissue (FWP)
229 (55.0)
79.2 (19.0)
138 (33.0)
103 (24.8)
117 (28.0)
91.3 (21.9)
86.3 (20.7)
83.0 (19.9)
86.3 (20.7)
79.2 (19.0)
79.2 (19.0)
157 (37.6)*
172 (41.2)**
73.4 (17.6)
38.4 ( 9.2)
60.5 (14.5)
53.8 (12.9)
40.0 ( 80.0)
27.5 ( 55.0)
29.5 ( 59.0)
22.0 ( 44.0)
34.0 ( 68.0)
79.5 (159 )
28.0 ( 56.0)
13.15( 26.3)
16.0 ( 32.0)
96.0 (192 )
96.0 (192 )
130 (260 )
244 (487 )
82.5 (165 )
9.5 ( 19.0)
10.0 ( 20.0)
13.0 ( 26.0)
174
347
214
213
291
871
324
158
185
1212
1212
829
1417
1124
248
165
242
87.0 (174 )
72.5 (145 )
53.0 (106 )
64.5 (129 )
65.0 (130 )
22.5 ( 45.0)
48.5 ( 97.0)
41.4 ( 82.8)
45.0 ( 90.0)
80.0 (160 )
80.0 (160 )
85.0 (170 1
85.0 (170 )
178.5 (357 )
30.0 ( 60.0)
28.0 ( 56.0)
110.5 (221 )
37
91
38
62
55
24
56
49
52
101
101
30
33
243
78
46
205
*  BOD5 flow only, total flow = 275 kl/kkg (66.0 kgal/ton)
** BOD5 flow only, total flow = 258 kg/kkg (61.8 kgal/ton)
                                      684

-------
            00 (/)
            00 -Q
               CD
           CO *J- CM CO >• i— i— en LO CM LO CO i— r— CMi— CM ^1- LO «3"
            COCMCMCMCOCOf— •— CM CM 00 •* r— CMi— CM
                                                                          C  C
                                                                          o  o
                                                                          re  re
                                                                          CD CD
                                                                         O 00
                                                                         10 ,
                                                                         LO
                                                                          CD CD
c
o
^
CD
^
2
\
r—
•^





>^
S-
0
CD
CU
•M
re
o
f~\
1 1
3
oo

O
LO
LO
O
cn
CM
CM








•
to
to
•r-
Q
^
CO

o o
cn co
r- CO
CM O
cn co
r-. co
1










*4-3 H~
•^ 0
SI CQ
j^ ^
CQ CO

CO O
•3- oo
CM CM
O 0
co r>-
O r—
' '









CU
c
• ^
LL. re
5^ O
CQ 00

cn r^
•— o
CM CM
CO CO
i— vo
cn co











D_ Q_
2: s:
0 1—
•3. 3
CD CJ3

en i^>-
cn o
r— CM
O CO
co vo
CO CO










CU
C "ZZ
•<- s:
U- 0
•3. 3
O3 C3

O
cn
1—
CM
cn
r*^




S-
cu
Q.
re
a.
• •
CU
4-)
•r-
4-
3
oo
*
o 10
cn r^.
i — CO
CM O
cn i^
r^ LO
•~~





+j
\s
s: re

co a_
4-> r—
•r- <
q-
^ O
00 _J
*
*
CM LO CM
§ — f~- cn

0**
CM CO CO
r^. r^» co
r~






re
-C
ex
r— CU
•=C C
\s «r—
^ CU.
CD *i~
• r- CU >— 1
1C Q Z

Lf>
«^.
r-
LO
O
**o








eu
3
to
to
•r-
1—
i — I
z:

CTl
CM
i —
00
CO
LO


^-^
O-
3
LJU


a>
3
to
to
•1—
h-
1 — 4
•z.
^ ^
SS
LO 00
t^ LD
CM CM
II U
S 5
o o
U- U-
oo oo
a. a.
oo oo
2: z

oo oo
co oo
H~ h-~

s- s-
0 0
LL. U-

*
* *
                                                                                    68S

-------
                              Table  223

                      BADT Variability Factors
            Bleached Kraft Soda, Groundwood,  Sulfite,  Deink,
           NI Fine Papers, and NI Tissue (fwp)  Subcategories
Parameter                   Maximum 30 Days              Maximum Day

  BOD5_                           1.78                       3.42

  TSS                            1.82                       3.38
                    NI Tissue Papers Subcategory


Parameter                   Maximum 30 Days              Maximum Day

  BOD5_                           1.79                       3.25

  TSS                            1.76                       3.60
                             686

-------
Bleached Kraft Subcategories

Bleached Kraft Dissolving Pulp Subcategory

The raw waste load used as the basis for the  NSPS  for  the  bleached
kraft  dissolving  pulp  subcategory was based upon mill 127 which has
the raw waste load shown below:

             Flow:   230 kl/kkg (55.1 kgal/ton)
             BOD5:   40.0 kg/kkg (80.0 Ibs/ton)
             TSS:    87.0 kg/kkg (174 Ibs/ton)

Mill 127 is presently achieving a final effluent BOD5 value of 24 mg/1
with an influent raw waste BOD5 value of 174  mg/1  using  an  aerated
stabilization  pond.   Table  219  in  Section X presents influent and
effluent BODJ5 data for bleached kraft mills  considered  to  represent
the  best  of  the best in effluent qualities.  As shown in the table,
the eight mills achieve final effluent BOD5 levels averaging less than
14 mg/1 with an average BOD5 raw waste load  of  201  mg/1.   Improved
operation  of  the biological treatment facilities at mill 127 and the
application of chemical addition, coagulation, and clarification which
removes 20 to 25% of the remaining  EOD5  should  result  in  effluent
levels   of   15  mg/1  of  BOD.5.   In  addition,  chemical  addition,
coagulation, and clarification will reduce TSS levels to  20  mg/1  in
the final effluent.

The NSPS were therefore based upon the following:

             Flow:   229 kl/kkg (55.0 kgal/ton)
             EOL5:   15 mg/1
             TSS:    20 mg/1

The above values were used to determine annual average values for BODI5
and  TSS which were multiplied by the variability factors in Table 223
in order to determine the maximum 30 consecutive days and maximum  day
standards.

Bleached Kraft Market Pulp Subcategory

The  raw  waste  load  used as the basis for the NSPS for the bleached
kraft market pulp subcategory were based upon mill 140 which  has  the
following raw waste load:

             Flow:    (18.9 kgal/ton)
             BOD5:    (55.4 Ibs/ton)
             TSS:     (145 Ibs/ton)

The  external  treatment  system  at  irill  140 consists of an aerated
stabilization basin with approximately 21 days of  detention  time  as
shown  in  Figure 44 in Section VII.  However, the final effluent BOD5
level being achieved during the period for which data  were  available
averaged  98  mg/1  and it appears that the ASB was underaerated.  The
mill  has  added  additional  aerators  to  ASB  during  more   recent
operations.  Two other bleached kraft market pulp mills, mills 130 and
114,  use ASBs to achieve effluent BOD5 levels of 11 mg/1 and 26 mg/1.
                              687

-------
respectively.  The average raw waste BOD5 for the two  mills  was  2(
mg/1   which  is  less  than  the  NSPS  bleached  kraft  market  pu
subcategory BOD5 raw waste level of 317 mg/1.  Mill  138  (20%  mark
pulp,  80%  BCT  papers)   uses  an  ASB to achieve final effluent BO
levels averaging 28 mg/1 with a raw waste BODjj level of 375 mg/1 whi
is slightly higher than the average  subcategory  BOD5  level  of  3
mg/1.  Based upon effluent reductions as demonstrated at mill 138, t
subcategory   raw   waste   load,   and  applying  chemical  additio
coagulation, and clarification which rerroves 20-25% of  the  remaini
BOD5  in  the  biological treatment effluent, the BOD5 NSPS were bas
upon  19  mg/1.   The  1SS  NSPS  were  based  upon  20  mg/1  becau
application  of  chemical  addition,  coagulation,  and  clarificati
results in effluent levels of 20 mg/1.

The NSPS were therefore based upon the following:

              Flow:   79.2 kl/kkg  (19.0 kgal/ton)
              BOD5:   19 mg/1
              TSS:    20 mg/1

The above values were used to determine annual average  BOD5  and  T
levels  which  were multiplied by the variability factors in Table 2
to determine  the  maximum  30  consecutive  days  and  daily  maxim
standards.

Bleached Kraft BCT Papers Subcategory

The  raw  waste load for the bleached kraft BCT papers subcategory vv
based upon mill 111 which had the following raw waste load:

             Flow:  137 kl/kkg  (32.9 kgal/ton)
             BOD.5:  29.7 kg/kkg  (59.3 Ibs/ton)
             TSS:   53.0 kg/kkg  (106 Ibs/ton)

Several mills in Table 52 in Section V have raw waste flow values le
than mill 111 but the other mills produce some market pulp in additi
to BCT papers.  Mill 111 is therefore  the  most  representative  mi
producing BCT papers.

The  treatment  system  at  mill  111 consist of an ASB which achiev
effluent BOD5 levels averaging 22  mg/1.   Two  bleached  kraft  mil
producing  BCT  papers  are shown in Table 219 which presents data f
mills  with  external  treatment  systems  achieving  effluent  leve
considered  to  be  the "best of the best."  Mills 117 and 105 achie
average  BODJ3  final  effluent   levels  of  12  mg/1  and   16   mg/
respectively,  with an average of 14 mg/1.  The average BOD_5 raw was
load for the two mills was 185  mg/1  which  is  less  than  the  Bf
bleached  kraft  BCT  papers  subcategory  raw waste BODJ5 of 214 mg/
Improved operation  of  mill  Ill's  biglogical  treatment  system
comparable  effluent  reduction effectiveness as mills 117 and 105 c
application of chemical addition, coagulation, and clarification wh:'
reduces the remaining BOD5 in biological treatment effluents by 20
25%  will allow achievement of 15 mg/1 BOD5.  As discussed previous!
chemical  addition,  coagulation,  and  clarification   will   achie
effluent TSS levels averaging 20 mg/1.


                            688

-------
The NSPS were therefore based upon the following:

              Flow:   138 kl/kkg  (33.0 kgal/ton)
              BOD5:   15 mg/1
              TSS:    20 mg/1

The  above  values  were used to determine annual average BODj> and TSS
levels which were multiplied by the variability factors shown in Table
223 in order to determine the maximum 30 consecutive days and  maximum
day standards.

Bleached Kraft Fine Papers Subcategory

The  raw waste load for the bleached kraft fine papers subcategory was
based on the following mills:

      Mill          Flow              BODJ5              TSS
      	    kl/kkg  (kgal/ton)  kg/kkg  fibs/ton)  kg/kkg  (Ibs/ton)

      118      107      (25.7)     20.3     (40.6)
      119      97.2     (23.3)     23.4     (46.7)    46.5     (92.9)
      134      106      (25.4)     35.9     (71.8)*   82.5     (165)

      Average  103      (24.8)     21.9     (43.7)    64.5)    (129)

      *Not included in average

The BOD5_  raw  waste  load  of  mill  134  was  not  included  in  the
subcategory  average  because it was substantially higher than the raw
waste loads being achieved through inplant controls at mills  118  and
119.

As  shown  in  Table  219  in  Section   X,  five  bleached kraft mills
producing fine papers achieve effluent levels representing  the  "best
of the best." The NSPS were based upon the BOD5_ levels presently being
achieved by the five mills which are shewn below:

                    RWL            Final Effluent
     Mill       BODS  (mq/1)          BODS  (rnq/1)

     101           186                     9
     119           240                   11
     112           224                   13
     106           204                   18
     107           264                   18

     Average       224                   14


The  average subcategory RWL was  213 mg/1  and since the  average  of  the
above mills was   224  mg/1,  no   adjustment  for  achievable effluent
concentrations was necessary.  The above mills  are presently achieving
effluent  BOD5  levels  which are  better  than most other  bleached kraft
mills with comparable raw waste loads  and  because of   this,   the  BOD5>
NSPS  were  based upon 14  mg/1.  The  level of 14 mg/1 BOD5 has  been
                              689

-------
demonstrated to the achievable  even  without  the  added  20  to  25!
reduction  in  BOD5  which  is  achieved  by  application  of chemica!
addition,  coagulation,  and  clarification  of  biological  treatmen1
effluents.    In   addition   chemical   addition,   coagulation,  an
clarification results in TSS effluent levels of 20 mg/1.

The NSPS were therefore based upon the following:

              Flow:  103 kl/kkg (24.8 kgal/ton)
              BODj>:  14 mg/1
              TSS:   20 mg/1

The above values were used to determine annual average levels of  BOD
and  TSS which were multiplied by the variability factors in Table 22
to  determine  the  maximum  30  consecutive  day  and  daily  maximv
standards.

Soda Subcategory

The  BADT  raw waste load for the soda subcategory was based primaril
upon mill 151 which the following raw waste load:

              Flow:   118 kl/kkg  (28.2 kgal/ton)
              BOD5:   52.5 kg/kkg (105 Its/ton)

TSS data were unavailable for mill 151 and while the above flow  valv
represents  good  inplant  controls,  the  raw waste BOD5 represents
higher level than  should  be  achieved  using  the  inplant  contro]
identified  in  Sections  VII  and  VIII  for  new  sources.  Mill If
achieves a BOD5 raw waste load of 34.0  kg/kkg   (68.0  Ibs/ton)  whic
represents  an  acceptable  level using inplant controls but has a n
waste flow of 170 kl/kkg  (40.7 kgal/ton).  The NSPS raw waste load we
based upon both mills and is shown belcw:

              Flow:   117 kl/kkg  (28.0 kgal/ton)
              BOD5:   34.0 kg/kkg (68.0 Ibs/ton)
              TSS:    65.0 kg/kkg (130 Ibs/ton)


The above TSS RWL was based upon mill 150 since the TSS  RWL  at  mi;
151  was  over twice the level achieved by mill 152 which represents
minimum of TSS inplant  controls.   Mill  152  presently  achieves  c
effluent  BOD_5  averaging 28 mg/1 with an aerated stabilization basir
As discussed in Section VII, the primary clarifier and the ASB at mi;
152  were  not  representative  of  BPCTCA.    Upgrading  and  improvi
operations  of the treatment facilities at mill 152 and application <
chemical addition, coagulation, and clarification  technologies  whi<
reduce  BOD5  in  biological  treatment  effluents  by  20 to 25% wou.'
result in an achievable BOD5 level of  15  mg/1.   Chemical  additio
coagulation, and  clarification also reduces TSS  levels  to 20 mg/1.

The NSPS were therefore based upon the following:

               Flow:   117 kl/kkg (28.0 kgal/ton)
               BOD5:   15 mg/1
                             690

-------
               1SS:    20 mg/1

The  above  values  were used to determine annual average BOD5 and TSS
levels which were multiplied by the variability factors in  Table  223
in  order to determine the maximum 30 consecutive days and maximum day
standards.

Sulfite Subcategories

Papergrade Sulfite Sutcategory

The NSPS for the papergrade sulfite subcategory were based  upon  mill
053 which had the following raw waste load:

              Flow:  79.2 kl/kkg (19.0 kgal/ton)
              BOD5:  96.0 kg/kkg (192 Ibs/ton)
              TSS:   80.0 kg/kkg (160 Ibs/ton)

Mill  053  is  the  newest  existing papergrade sulfite mill, built in
1968, and produces tissue papers using  inplant  control  technologies
which  represent  the  best available demonstrated technology.  Within
the process mill 053 uses two stages of vacuum drum  pulp  washing  to
recover  95-98%  of the spent sulfite liquor.  The mill has segregated
process water systems for the pulp mill and for the paper mill and  as
a result the waste waters from the two sources are treated in separate
treatment  systems.   The  waste  waters from the pulp mill are low in
volume and high in BOD5 concentration and are treated in an  activated
sludge  system.   The  waste waters from the paper mill are treated by
primary treatment since the BOD5_ in  the  waste  waters  is  primarily
associated  with  the  fibrous  solids  which  are  removed in primary
treatment.   The  combined  discharge  from  both  treatment   systems
resulted in the following BOD5 and TSS values:

              EOD5:  3.45 kg/kkg (6.9 Ibs/ton)
              TSS:   7.45 kg/kkg (14.9 Ibs/ton)

Since  mill  053 uses some purchased pulp in the manufacturing process
as a supplementary source of fiber, the raw waste and  final  effluent
flow, BODj>, and TSS values were adjusted to reflect on-site production
of 100% of the pulp used to make paper.  This adjustment was necessary
because  of  the impact upon the waste water values when examined on a
kiloliters or kilograms per 1000 kilograms  basis   (kgal  or  Ibs  per
ton).   The  above  values of BOD5 and TSS correspond to the following
concentrations of 44 mg/1 and 94 mg/1, respectively.   Application  of
chemical additive, coagulation, and clarification should remove 20-25%
of  the  BOD5 and attain an TSS level of 20 mg/1.  Thus, the NSPS were
based upon the following:

              Flow:  79.2 kg/kkg (19.0 kgal/ton)
              BOD5:  33 mg/1
              TSS:   20 mg/1

The above values were used to determine annual average  BODj>  and  TSS
levels  which  were multiplied by the variability factors in Table 223
                              691

-------
in order to determine the maximum 30 consecutive days and maximum
standards.

Papergrade Sulfite Market Pulp Subcategory
day
The  papergrade  sulfite  market pulp sutcategory NSPS are the same as
the papergrade sulfite subcategory.  As discussed in Section  IV,  the
major  impact  on  sulfite mill raw waste loads is the degree of spent
liquor recovery and a new sulfite market  pulp  mill  can  include  an
adequately  sized  recovery  system which would minimize the raw waste
load.  In addition, a new mill has the advantages  of  being  able  to
segregate  the  low volume, highly concentrated pulp mill waste waters
from the dilute white water system of the pulp dryers.  Thus,  similar
waste water systems and treatment systems as mill 053 can be installed
at new sulfite market pulp mills.

Low Alpha Dissolving Sulfite Pulp Subcategory

The  NSPS  raw  waste  load  for the low alpha dissolving sulfite pulp
subcategory was based upon mill 511 which had the following raw  waste
load:

              Flow:   275 kl/kkg (66.0 kgal/ton)
              BOD5:   130 kg/Jckg (260 Ibs/ton)
              TSS:    92.5 kg/kkg  (185 Ibs/ton)

Segregation  of  the  BOD5  bearing  waste waters from the TSS bearing
waste waters and cooling waters at mill 511 would allow a new mill  to
treat  the  highly  concentrated,  low volume waste waters rather than
treating the entire mill effluent.  The NSPS were  thereby  determined
using the following raw waste load for the BOD5 bearing streams:

               Flow:   157 kl/kkg  (37.6 kgal/ton)
               EOD5:   130 kg/kkg  (260 Ibs/ton)

The  raw  waste  flow  of  the other waste waters was 118 kl/kkg  (28. U
kgal/ton).  The BADT TSS EWL was based on mill 511 which had a TSS RWL
of 85.0 kg/kkg (170 Ibs/ton).

The NSPS were determined using  the  relationship  for  sulfite  waste
waters  which  was determined in Section VII.  The influent BOD5 level
using the above values for segregated waste streams would be 829  mg/1
and application of biological treatment followed by chemical addition,
coagulation,  and clarification which removes 20 to 25% of the BOD5_ in
the biological treatment effluent should result in  an  effluent  BOD5_
level  of  approximately 40 mg/1.  Chemical addition, coagulation, and
clarification also achieves effluent TSS levels of 20 mg/1.

The NSPS were therefore based upon the following:

               Flow:  157 kl/kkg  (37.6 kgal/ton)
               BOD5:  40 mg/1

               Flow:  275 kl/kkg  (66.0 kgal/ton)
               TSS    20 mg/1
                             692

-------
It should be pointed out that mill 512 had a comparable BOD5 raw waste
load to mill 511 and a substantially lower raw waste flow as showed in
Table 42 in Section V.  However, information and data were unavailable
to determine the effluent raw waste values for segregating  the  waste
waters.   The  above values were used to determine annual average BOD5_
and TSS levels which were multiplied by  the  variability  factors  in
Table  223  in  order to determine the maximum 30 consecutive days and
maximum day standards.

High Alpha Dissolving Sulfite Pulp Sutcategory

The NSPS for the high alpha dissolving sulfite pulp  subcategory  were
based  upon  segregation  of BOD5 and TSS bearing streams from cooling
water streams similarly to  the  low  alpha  dissolving  sulfite  pulp
subcategory.  Mill 403 which was used as the basis of the NSPS had the
following raw waste load:

               Flow:   258 kl/kkg (61.8 kgal/ton)
               BOD5:   244 kg/kkg (487 Ibs/ton)

Segregation  of the waste streams would result in biological treatment
of 172 kl/kkg (41.2 kgal/ton) of the raw waste flow which would have a
BOD5I raw waste level of 1417 mg/1.

The relationship determined in Section VII shows that the  application
of  biological  treatment  to the waste water flow of 172 kl/kkg  (41.2
kgal/ton) and chemical addition/ coagulation, and clarification to the
entire effluent flow of 258 kl/kkg (61.8 kgal/ton) should achieve BOD5_
and TSS levels of 45 mg/1 and 20 mg/1, respectively.

The NSPS were therefore based upon the following:

               Flow:   172 kl/kkg (41.2 kgal/ton)
               EOD5:   45 mg/1

               Flow:   258 kl/kkg (61.8 kgal/ton)
               TSS:    20 mg/1

The above values were used to determine annual average  BOD5  and  TSS
levels  which  were multiplied by the variability factors in Table 223
in order to determine the maximum 30 consecutive days and maximum  day
standards.

Deink Subcateqory

As  previously  discussed,  the  deink  manufacturing  process  can be
considered as a cleaning process in removing impurities from the waste
paper and as such relatively high BOC5 and TSS loadings can occur as a
function of the raw materials used therefore, BODJ5 and TSS  raw  waste
loads  for  NSPS  are  the  same  as BPCTCA raw waste loads.  Mill 217
demonstrated the lowest flow rate of the three 100%  deink  mills  and
was used as the flow basis for NSPS.  Since the market for waste paper
can  vary  and  the  types of waste paper available to deink mills can
vary, the NSPS  were  increased  slightly  from  the  effluent  levels
                             693

-------
normally  considered achievable with the technology identified.  Thus,
BOD5 and TSS levels of 30 mg/1 were used as the basis for NSPS for the
deink subcategory.

Groundwopd;  Thermo-mechanical Subcategory

The groundwood:  thermo-mechanical subcategory NSPS  were  based  upon
the  BPCTCA  raw  waste  load  rather  than  the BATEA raw waste load.
Thermo-mechanical pulping is relatively new in this country  and  thus
the  BPCTCA  raw  waste load reflects the best demonstrated technology
presently used by thermo-mechanical mills.

Groundwood; Fine Papers Subcategory

The groundwood: fine papers subcategory NSPS flow, and BODjj were based
on the average of mills 13 and 20.  TSS raw waste was based upon  only
mill 20 since mill 13 did not have measured non-standard TSS.

              Flow:  83.0 kl/kkg  (19.9 kgal/ton)
              BOD5:  13.2 kg/kkg  (26.3 Ibs/ton)
              TSS:   41.a kg/kkg  (82.8 Ibs/ton)

Application   of   biological   treatment   and   chemical   addition,
coagulation, and clarification to the raw waste  load  should  achieve
the following effluent basis:

              Flow:  83.0 kl/kkg  (19.9 kgal/ton)
              BOD5:  13 mg/1
              TSS:   20 mg/1

Groundwood; CMN Papers Subcategory

Raw  waste  load  BOD5  and  TSS  are  based upon an evaluation of the
subcategory and internal controls available for new sources.  The NSPS
flow for the groundwood CMN subcategory is based upon mill  016,  86.3
kl/kkg  (20.7 kgal/ton).  The resultant raw waste load basis is:

              Flow:  86.3 kl/kkg  (20.7 kgal/ton)
              BOD5:  16 kg/kkg  (32.0 Ibs/ton)
              TSS:   45 kg/kkg  (90.0 Ibs/ton)

Since  none  of  the  mills in the GW: CMN subcategory have biological
treatment,  the  BOD5  concentration  used  for  the   BOD5   effluent
limitations was based upon mill 014 in the GW:  fine papers subcategory
which  was  achieving  13  mg/1 BOD5.  The TSS  effluent limitation was
based upon 20 mg/1 as discussed previously.

The NSPS were therefore based upon the following:

              Flow:  86.3 kl/kkg  (20.7 kgal/ton)
              BOD5:  13 mg/1
              TSS:   20 mg/1

PRETREATMENT REQUIREMENTS
                             694

-------
No constituents of the effluents  discharged  from  mills  within  the
bleached  kraft,  groundwood, sulfite, soda, deink, and non-integrated
paper mills segment of the pulp, paper, and  paperboard  point  source
category  have  been  identified  which  would  interfere  with,  pass
through,  or  otherwise  be  incompatible  with  a  well-designed  and
operated  publicly-owned  biological waste water treatment plant.  The
exception to this, however, is the discharge of zinc  from  groundwood
mills  which use zinc hydrosulfite as a bleaching agent.  Pretreatment
standards on zinc which  are  equal  to  the  BPCTCA  limitations  are
proposed   for   groundwood   mills   using  zinc  hydrosulfite.   The
pretreatment  standards  can  be  achieved  by   substituting   sodium
hydrosulfite  for  zinc hydrosulfite in the bleaching process which is
commonly practiced by many groundwood mills.
                              695

-------
                             SECTION XII


                           ACKNOWLEDGEMENTS

The  Environmental  Protection  Agency  wishes  to   acknowledge   the
contributions  of  WAPORA,  Inc.,  E.  C. Jordan Co., and General Data
Systems, Inc.  The efforts of E. N. Ross, William Groff, and Dr. Harry
Gehm of WAPORA; James Vamvakias, Donald Cote,  Richard  Perrault,  and
William  Warren  of E. C.  Jordan; and John Rhinney of General Systems
Corporation  (Maryland) are appreciated.

Appreciation is expressed for the contributions of several individuals
within the Environmental  Protection  Agency:   John  Riley,  Effluent
Guidelines  Division, Bruce Diamond, Office of General Counsel, Irving
Susel and Ed Brandt, Office  of  Planning  and  Evaluation,  and  Jeff
Denit,  Effluent  Guidelines  Division.   The  continued  support  and
direction by Allen Cywin and Ernst Hall, Effluent Guidelines Division,
are certainly appreciated.

Efforts by several members of the EPA working group/steering committee
deserve special  acknowledgement  and  the  technical  assistance  and
support  provided  to  the  project  officer  are  appreciated.  Those
members include:  Danforth Bodien, Region X, Joe  Davis,  Region  III,
Tom Doane, Region It Frank Early, NEIC-Denver, John Moebes, Region IV,
John  Schluter,  Region II, and Ralph Scott and Kirk Willard, National
Environmental Research Center at Corvallis, Oregon.

The  assistance  of  Fred  Zaiss,  Effluent  Guidelines  Division,  in
providing timely computer support is very much appreciated.

Appreciation  is  extended  to Charles G. Nichols, Effluent Guidelines
Division, for his assistance in  revising  portions  of  the  original
draft  report  and  in  compiling  the  many  tables and figures.  The
efforts of Karla Jean Dolum for her continuous  assistance  throughout
the  project  were  invaluable.  Special recognition is given to Pearl
Smith who typed much of this document and has put up with the constant
harassment of the project officer.  Assisting Pearl  Smith  were  Jane
Mitchell, Doris Clark, Acqua Delaney, and Brenda Pinkney.

The cooperation of the National Council for Air and Stream Improvement
in  providing  liaison with the industry and technical assistance were
appreciated.  Thanks are also extended to the American Paper Institute
for its assistance.

Appreciation is also extended to companies who granted access to their
mills and treatment works from field surveys and  for  the  assistance
lent  by  mill  personnel  to  field  crews.   The  operation  records
furnished by these manufacturers and  information  supplied  by  other
individuals in the industry contributed significantly to the project.
                              697

-------
                             SECTION XIII


                              REFERENCES


1.   Casey, J.  P.,  Pulp and Paper Chemistry and Chemical Technology,
     2nd Ed., Interscience Publishers, Inc., New York  (1960).

2.   Pulp and Paper Manufacture, Vol. I,  The  Pulping  of  Wood,  2nd
     Edition, McGraw-Hill Book Co., New York (1969).

3.   Rydholm, S. A., Pulping Processes, Interscience  Publishers,  New
     York  (1965).

4.   Scott, R. H., and Willard, H.  K.,  "The  U.S.  Sulfite  Industry
     Faces  Present  and  Future  Waste  Control  Needs," TAPPI,  56, 9
     (1973) .

5.   Gehm, H. W., State-of-the-Art Review  of  Pulp  and  Paper   Waste
     Treatment, EPA Contract No. 68-01-0012, April  (1973).

6-   Pulp and Paper Manufacture, Vol. IIA  Control,  Secondary  Fiber,
     Structural  Board,  Coating,  2nd  Ed., McGraw-Hill Book Co., New
     York  (1969).

7.   TAPPI Standard Method T235m-60.

8.   The Bleaching of Pulp, TAPPI Monograph No. 27  (1963).

9.   Paper, Paperboard, Wood Pulp Capacity, 1971-197U, American   Paper
     Institute, Oct. (1972).

10.  Mechanical Pulping Manual, TAPPI Monograph No. 21  (1960).

11.  Soteland, N.,  "Bleaching  of  Chemical  Pulps  with  Oxygen and
     Ozone," Pulp and Paper Magazine of Canada, 75, 4  (1974).

12.  Hendrickson, E. R., et  al..  Control of Atmospheric Emissions in
     the Wood Pulping Industry, DHEW, NAPCA Contract No. CPA 22-69-18,
     March  (1970) .

13.  Mayer, W, C.,  and  Donofrio,  C.  P.,  "Reductive  Bleaching  of
     Mechanical Pulp with Sodium Borohydride", Pulp and Paper Magazine
     of Canada, 59, 10  (1958).

14.  Rapson, W. H., et al., "Carbonyl Groups in  Cellulose  and   Color
     Reversion  -  II.   Hypochlorite  Bleaching  and  Color Removal,"
     TAPPI, 11» 8  (1958) .
                            699

-------
15.   Waymanr  M. ,  et al. ,  "Peracetic Acid Bleaching of Groundwood  from
     Nine Canadian Species," TAPPI, 48, 2 (1965).

16.   "Northwest  Paper Production Rose, Pulp Output Dropped Last Year,"
     Paper Trade Journal, Sept.  24 (1973).

17.   Walther,  J.  E., et al., "Recovery of Sulfite Pulping  Liquor  and
     Sulfur  Dioxide Control in a Magnesia Base Recovery System," Pre-
     sented AIChE  meeting,  Minneapolis,  Minn.,  Aug.  (1972).   (In
     press, AIChE Symposium series).

18.   Edwardes, V. P., "Operational Survey of  Collection,  Evaporation
     and Burning of Spent Sulfite Liquor," NCASI Special Rept.  (1954).

19.   Peterson, R. E., and Krauth,  J.  A.,  "Progress  Report  —  ITT
     Rayonier Sodium Base Recovery System," (1968).

20.   Axelson, O., "Some Views on Brown Stock  Washing,"  International
     Congress on Industrial Waste Water, Stockholm (1970).

21.   Chemical Recovery in the Alkaline Pulping Processes, TAPPI  Mono-
     graph No. 32  (1968) .

22.   Barter, N., et al.,  "Peroxide Bleaching of Kraft Pulp," TAPPI.43,
     10  (1960).

23.   Evans, J. C. W., "First Oxygen Bleaching Plant in  North  America
     in Successful Operation," Paper Trade Journal, Oct. 15  (1973).

24.   "Alternate Uses and  Treatments  of  Chlorine  Dioxide  Generator
     Effluents," TAPPI Committee Assignment Rept. No. 23  (1969).

25.   Fergus, B.  J.,  "Optimization  of  the  CEHDP  Bleach  Sequence,"
     TAPPI, 56,  1  (1973).

26.   Fergus, B.  J., "Bleaching Studies on the  CEDED  and  DCEDED  Se-
     quences, " TAPPI. 56,  1  (1973).

27.   Deinking of Waste Paper, TAPPI Monograph No. 31  (1967) .

28.   Pulp and Paper Manufacture, Vol. Ill: Papermaking  and Paperboard
     Making, 2nd Ed., McGraw-Hill  Book Co., New York  (1970).

29.   "A Study  of   the  Potential  for  Sufccategorization  within  the
     Sulfite  Pulp  and  Paper  Industry",  Technical   Report   No.   4,
     Vanderbilt University December 1974,

30.   Sutermeister,  E.,  Chemistry of Pulp and Papermaking,   3rd  Ed.r
     John Wiley and sons.  New York (1941).
                             700

-------
31.  Slatin, B., "Paper." Book of Knowledge, 1966  Ed.  Grolier  Inc.,
     New York  (1966).

32.  Blosser, R. 0.,  "Practice in Handling Barker Effluents  in  Mills
     in the United States", NCASI Technical Bulletin No. 194 (1966).

33.  Pollutional Effects of the Pulp and Papermill Wastes in Puget
     Sound,  FWQA, U.S. Dept. of the Interior  (1967).

34.  Kronis, H., and Holder, D. A., "Drum Barker  Effluent,"  Pulp  and
     Paper Magazine of Canada, 69, 62  (1968) .

35.  Draper, R. E., and Mercier, F.  S.,  "Hydraulic  Barker  Effluent
     Clarifier at Woods Products Division, Weyerhaeuser Co.," Proceed-
     ings llth Pacific Northwest Industrial Waste Conf.  (1962).

36.  Private Communication  (1970).

37.  Wisconsin  State  Dept.  of  Health,  Pulp  and  Paper   Advisory
     Committee Kept.  (1965).

38.  Pulp and Paper,  Mag,,  1975, Combustion Engineering, Inc., pg 110.

39.  L.H.  Clark,  Weyerhaeuser   Corporation,   TAPPI   En vi ro nmen ta1
     Conference. May 1975.  (High Purity Oxygen Treatment).

40.  Myburgh, C. J.,  "Operation of the Enstra Oxygen Bleaching Plant,"
     TAPPI. 57. 5  (1974).

41.  Canty, C., Perry, F. G., and Woodland, L. R., "Economic Impact of
     Pollution Abatement on the Sulfite Segment of the  United  States
     Pulp and Paper Industry," TAPPI. 56, 9 (1973).

42.  Barton, C. A., et al., "A Total  Systems  Approach  to  Pollution
     Control at a Pulp and  Paper Mill," Journal WPCF. 40,8 (1968).

43.  Tyler, R. G., and Gunther, S.,  "Biochemical  Oxygen  Demands  of
     Spent Sulfite Liquor," Sewage Works Journal, 20, 516  (1948).

44.  Lawrance, W. A., "The  Microbial Oxidation of  Pure  Carbohydrates
     in           the           Presence           of          Calcium
     Lignosulfonate," NCASI Technical Bulletin No. 80  (1954).

45.  Private Communication, Nov.  (1973) .

46.  Rexfelt, J., and Samuelson, O., "The Composition  of  Condensates
     from     the    Evaporation    of    Sulfite    Spent    Liquor,"
     Swenska Papperstidning, 21, 689 (1970).
                             701

-------
47.   Clark,  L. H.,  and DeHaas, G. G.,  "Volatile  Acid  Recovery  from
     Vapors by Chemical Reaction," TAPPI. 52, 9 (1969).

48.   Long, C.  J., and DeHaas, G. G., "Conversion of Crude Acetates  to
     Glacial Acetic Acid and Pulping Chemicals," TAPPI, 53, 6  (1970).

49.   Baierl,  K.  W.,  et  al.,  "Treatment  of   Sulfite   Evaporator
     Condensates  for  Recovery  of  Volatile Components," Proceedings
     TAPPI Environmental Conf., 73  (1973).

50.   Van  Horn,  W.  M.,  "Aquatic  Biology  in  the  Pulp  and  Paper
     Industry," Part I, NCASI Technical Bulletin No. 148  (1961).

51.   Van  Horn,  W.  M.,  "Aquatic  Biology  in  the  Pulp  and  Paper
     Industry," Part II, NCASI Technical Bulletin No. 251  (1971).

52.   Blosser,  R. O.,  and  Gellman,  I.,"Characterization  of  Sulfite
     Pulping  Effluents and Available Treatment Methods," TAPPI, 56, 9
     (1973).

53.   Harrison, M.,  "A Critical  Review  of  the  Literature  on  Slime
     Infestation," Part I, NCASI Technical Bulletin No. 94  (1957).

54.   Cormack,  J. B., and Amberg, H. R.,  "The  Effects  of  Biological
     Treatment  of  Sulfite Waste Liquor on the Growth of Sphaerotilus
     Natans," Proceedings Purdue  Univ.  Industrial  Waste  Conf.   XIV
     (1959) .

55.   Edde, H., "A Critical Review of the Literature on Slime   Infesta-
     tions," Part II, NCASI Technical Bulletin No. 232  (1969).

56.   Slime Growth Evaluation of Treated Pulp Mill Waste,   Dept.    of
     Microbiology, Oregon State Univ., EPA Water Pollution Control  Re-
     search Series 12040DLQ  (1971) .

57.   Aerated Lagoon Treatment of Sulfite Pulping Effluents, EPA  Water
     Pollution Control Research Series 12040 ELW  (1970).

58.   Kleppe, P. J., and Rogers, C.  N., Survey of Water Utilization  and
     Waste Control Practices in the Southern Pulp and Paper Industry,
     Water Resources Research  Institute,  Univ.  of  North  Carolina,
     Project No. A-036-NC  (1970).

59.   Timpe, W. G., et al., "Kraft Pulping Effluent Treatment and Reuse
     - State  of  the  Art,"  Environmental  Protection   Technological
     Series, EPA-R-2-73-164  (1973).

60.   Wenzl, H. F.  J.,  Kraft Pulping   Theory and Practice,   Lockwood
     Publishing Co., Inc., New York (1967).
                             702

-------
61.  Gehn, W. H., and Gove, G. W. , "Kraft Mill Waste Treatment in  the
     U.S. - A Status Report," NCASI Technical Bulletin No. 221 (1968).

62.  Burns, O. B., and Eckenfelder, W. W., Jr., "A  Statistical  Study
     of  Five  Years  of Operation of the West Virginia Pulp and Paper
     Company"s Waste Treatment Plant," Purdue Univ.  Industrial  Waste
     Conf. XVIII  (1963).

63.  Edde, H. , "Settleable solids Removal Practices in  the  Pulp  and
     Paper Industry," NCASI Technical Bulletin No. 198 (1964).

64.  Follette, R., and Gehm, H. W., "Manual  of  Practice  for  Sludge
     Handling     in     the     Pulp     and     Paper     Industry,"
     NCASI Technical Bulletin No. 190  (1966).

65,  Stovall, J. H., and Berry, D. A., "Pressing and  Incineration   of
     Kraft  Mill  Primary  Clarifier  Sludge," TAPPI 6th Water and Air
     Conf. (1969) .

66.  Wilson, D. F., et al., "Methanol, Ethanol and  Acetone  in  Kraft
     Mill Streams," TAPPI, 55, 8  (1972).

67.  Hrutfiord, B. F., and McCarthy, J. L. , "SEKOR-I Volatile  Organic
     Compounds in Kraft Mill Effluent Streams," TAPPI. 50. 2  (1967).

68.  "Evaluation of Analytical Procedures for the Analysis of Selected
     Organic     Compounds     in     Kraft      Mill      Effluents,"
     NCASI Technical Bulletin No. 258  (1972).

69.  Davis, C. L., Jr., "Color Removal from Kraft Pulping Effluents  by
     Lime Addition," AIChE Chemical Engineering Symposium Series, 107,
     67  (1971).

70.  South, W. D., "Relating Kraft Waste Stream  Properties  to  BOD,"
     TAPPI, 54, 11  (1971).

71.  Carpenter, W. L,, "COD and BOD Relationships of Raw and  Biologi-
     cally  Treated  Kraft  Mill  Effluents," NCASI Technical Bulletin
     No. 193 (1966) .

72.  "Oxidation Analysis  of  Pulp  Mill  Effluents,"  NCASI Technical
     Bulletin No. 256  (1972).

73.  Van Hall, C. E., and Stenger, V. A., "Use  of  Infrared  Analyser
     for  Total  Carbon Determination," Proceedings Symposium on Water
     Renovation," Div. of Water and Waste Chemistry,  ACS,  Cincinnati
     (1963) .

74.  Hill, N.  H.,  "Carbon  Analysers  for  Contaminants  in  Water,"
     Instrument Technology,  March  (1969).
                             703

-------
75.  "The Toxicity of  Kraft  Pulping  Wastes  to  Typical  Fish  Food
     Organisms," NCASI Technical Bulletin No. 10 (1947).

76.  Howard, T. E., and Walden, C. C., "Pollution and Toxicity Charac-
     teristics of Kraft Mill Effluents," TAPPI,48,  3 (1965).

77.  "The Effects of Sublethal Concentrations of Kraft Pulping  Wastes
     and  their  Components  on Fish Organs," NCASI Technical Bulletin
     No. J49, (1952) .

78.  "Laboratory and Controlled Experimental Stream Studies of Effects
     of Kraft Mill Effluents on Growth and Production of Fish,"  NCASI
     Technical Bulletin No. 259 (1972).

79.  Private Communication, Dissolving Pulp Manufacturers  (1971).

80.  Private Communication  (1973).

81.  Jamieson, A., and Smedman, L., "Oxygen Bleaching — A Mill Tested
     Approach to Pollution Abatement," TAPPI, 56, 6  (1973).

82.  Nicholls, G.  A.,  "Kraft  Multistage  Bleach  Plant  Effluents,"
     TAPPI. 56. 3  (1973).

83.  Ota, M., et al., "Low Molecular Weight Compounds in Spent Chlori-
     nation Liquors," TAPPI, 56. 6  (1973).

84.  "Bleaching  Effluents  with  Lime.   I.   Treatment  of   Caustic
     Extraction           Stage          Bleaching          Effluent,"
     NCASI Technical Bulletin No. 239  (1970).

85.  Ibid,  "Part  II.  Treatment   of  Chlorination  Stage   Bleaching
     Effluent," NCASI Technical Bulletin No. 242 (1970).

86.  Gould, M., "Physical-Chemical  Treatment  of  Pulp  Mill  Wastes,
     Woodland, Maine". Purdue International Waste Conference, 1972.

87.  Haynes, D. C., "Water Reuse -  A  Survey  of  the  Pulp  and  Paper
     Industry," TAPPI. 49,  9  (1966).

88.  "Deinking Report," NCASI Technical Bulletin No. 5  (1946).

89.  Hodge, W. W., and Morgan,  P. F.,  "Characteristics  and Methods   of
     Treatment of  Deinking  Wastes," Sewage Works Journal,  19, 5(1947).

90.  Barton, C. A., et al., "Treatment of Sulfite Pulp  and Paper  Mill
     Waste," Journal WPCF,  45,  1  (1973).

91.  Morgan, O. P., "Biological Waste Treatment Histories  in the  Pulp
     and  Paper  Industry," NCASI Technical Bulletin No.  220  (1968).
                              704

-------
92.   Bystedt, M. I., "What is the Future of  Thermomechanical  Pulp?,"
     Pulp 5 Paper. Dec. (1973).

93.   Rysberg, G., "Thermo-mechanical Pulp Advancing Around the World,"
     Paper Trade Journal,  Dec. 24 (1973).

94.   Marton, J., and Marton, T., "Mercury in the Pulp and  Paper  Mill
     Environment — Appraisal and Perspective," TAPPI, 55, 11, (1972).

95.   Mayer, C., "Water Quality Control  Program  at  Publishers  Paper
     Co.,"  Presented  at  NCASI  West  Coast  Regional  meeting, Nov.
     (1972) .

96.   Hrutfiord, B. F., et al.. Steam Stripping Odorous Substances from
     Kraft Effluent Streams, EPA-R2-73-196, Apr. (1973).

97.   Matteson, M. J., et al., "SEKOR II:  Steam Stripping of  Volatile
     Organic  Substances  from  Kraft  Pulp  Mill  Effluent  Streams,"
     TAPPI, 50, 2 (1967).

98.   Maahs, H. C., et al., "SEKOR III:  Preliminary Engineering Design
     and  Cost  Estimates  for  Steam  Stripping   Kraft   Pulp   Mill
     Effluents," TAPPI, 50, 6  (1967).

99.   Bengkvist, S., and Foss, E., "Treatment of  contaminated  Conden-
     sates  in Kraft Pulp Mills," International Congress on Industrial
     Waste Water, Stockholm (1970).

100. Estridge, R. B., et al., "Treatment of Selected Kraft Mill Wastes
     in a Cooling Tower," TAPPI 7th Water and Air Conf.  (1970).

101. Timpe, W. C., and Evers, W. J., "The Hydropyrolysis Recovery Pro-
     cess," TAP_PIX_56, 8  (1973).

102. Fogman,  C.  B.,  "A  Pollution-Controlled  Polysulfide  Recovery
     Method," Paper Trade Journal,  Oct. 9  (1972).

103. Worster, H. E.r and Pudek, M.  F., "The Effects of Oxygen  Pulping
     on  Toxicity and Color of Effluent," 58th Annual Meeting, Techni-
     cal Section, CPPA  (1972).

104. Nelson, G. G., et al., "Water Reuse in Bleaching — Panel Discus-
     sion," TAPPI, 55, 6  (1972).

105. Yankowski, A. A., "Reducing the  Water  Consumption  in  a  Kraft
     Bleachery." TAPPI, 55. 6  (1973).

106. Rowlandson, G., "Continuous Oxygen Bleaching in  Commercial  Pro-
     duction*" Paper Trade Journal, Dec. 21 (1970).
                               705

-------
107.  "Oxygen Bleaching after Seventeen  Months  of  Operation,"  Paper
     Trade Journal,  Dec.  13 (1971).

108.  Land, J. G., and Campbell,  R.  T., "Rapid Chlorine Dioxide Bleach-
     ing of Southern Pine Kraft  Pulp,"  Paper Trade Journal,  July  30
     (1973).

109.  Carpenter, W. L., et al.x, "Effluent Characteristics from  Conven-
     tional   and  Oxygen  Bleaching,"  Paper Trade Journal,  July  30
     (1973).

110.  Makkonen, H., et al., "Oxygen Bleaching as Critical Link  between
     Chemical  Fiberization  and  Fully  Bleached  Pulp,"  Paper Trad*
     Journal, July 30 (1973).

111.  Christensen, P. K.,   "Oxygen  Bleaching  Sulphite  Pulps,"  Papei
     Trade Journal,  July 30 (1973).

112.  Rapson, W. H.,  and Reeve,  D.   W.,  "The  Effluent-Free  Bleache<
     Kraft   Mill,"   Southern Pulp and Paper Manufacturer,   Nov.  K
     (1972) .

113.  Reeve, D. W., and Rapson, W. H.,  "Recovery  of  Sodium  Chlorid<
     from   Bleached  Kraft  Pulp  Mills,"  Pulp and Paper Magazine gj
     Canada, 71, 13  (1970).

114.  "Stream Improvement by Recovery  of  Bleach  Plant  Liquors  froi
     Kraft   Pulp   Mills,"   Pulp and Paper Magazine of Canada,  Jun<
     (1968) .

115.  Reeve, D. W., et al., "Effluent Free Bleached Pulp Mill  —  Par
     IV Salt Recovery Process," Paper Trade Journal, July 30  (1973) .

116.  "Rapping with Rapson," Pulp & Paper, Oct.  (1973).

117.  Rapson, W. H.,  "Effluent Free Bleached Kraft  Pulp  Mill  —   R-
     Process  for  Chlorine Dioxide Manufacture," Paper Trade Journal
     July 30  (1973) .

118.  Waste Treatment Plant  at  ITT  Rayonier,  Inc.  Mill  Fernandin
     Beach,  Florida,"  Southern Pulp and Paper Manufacturer,  July 1
     (1972) .

119.  Kleinau, J. H., "Toward  a  Pollution-Free  System  of  Secondar
     Fibre Usage," Pulp and Paper Magazine of Canada, March  (1960).

120.  Lardieri, N. J.,  "Recovery  of  Usable  Solids,"  Pulp and Papg
     Magazine of Canada, March  (1960).
                            706

-------
121.  Gavalin, G., "A New Concept in  Papermaking  —  The  Lean  Water
     System," Paper Trade Journal, March 5 (1973).

122.  Nerou,  J. M.t and Garrigues, Y., Sapoxal Oxygen Bleaching Goes On
     Stream at Cellulose d' Aguitaine," TAPPI Annual Meeting, Jan.  16
     (1974) .

123.  Gould,  M., and Walzer, J., "Mill Waste Treatment  by  Flotation,"
     Chem 26/Paper Processing, Nov.  (1972).

124.  Fuller, R. S., "Screening of Effluents," TAPPI, 56. 6 (1973).

125.  Warren, C.E., Biology of Water Pollution Control, W.B.  Saunders,
     Philadelphia  (1971).

126.  Carpenter, W. L., "Foaming Characteristics of Pulping Wastes Dur-
     ing Biological  Treatment",  NCASI  Technical  Bulletin  No.  195
     (1966) .

127.  Nowacki, J., "Nutrient Salt Reduction in the Biological Purifica-
     tion of Kraft Mill Effluents," Fortachr Wassechen ihrev  Grengzch
     #11, 135  (1969).

128.  Nowacki, J., "Influence of Addition of Phosphorus and Nitrogen to
     Pulp and Paper Mill Effluents," Pregeglad Papier  25,   (6),  211,
     Poland, June  (1969).

129.  Tracy, J. C., "Secondary Waste  Treatment  Nutrient  and  Aerator
     Studies", Southern Pulp and Paper Manufacturer, Feb. 1970.

130.  Eckenfelder, W. W., Jr., Industrial Waste Water Control,  McGraw-
     Hill Book Co., New York  (1966).

131.  Edde, H., "Field Research Studies of Hydraulic Mixing Patterns in
     Mechanically Aerated Stabilization Basins," Proceedings  Interna-
     tional Congress on Industrial Waste Waters, Stockholm  (1970).

132.  McKeown, J. J., and Buckley, D. B.,  "Mixing  Characteristics  of
     Aerated  Stabilization  Basins,"  TAPPI  8th  Water and Air conf.
     (1971) .

133.  Grader, R. J., et al., "The Activated Sludge Process Using  High-
     Priority Oxygen for Treating Kraft Mill Wastewater," TAPPI,  56,  4
     (1973).

134.  Ayers, K. C., and  Patton,  T.  H.,  Jr.,  "Biological  Treatment
     Alternatives  for Kraft Effluents," TAPPI 8th Water and Air Conf.
     (1971) .
                               707

-------
135.  Bennett,  D.  J.,  et al.,  "Pilot Application of the  Rotating  Bio-
     logical  Surface  Concept  for  Secondary Treatment of Insulating
     Board Mill Effluents,"  TAPPI,  56.  12 (1973).

136.  Edde, H., "A Manual of  Practice for Biological Waste Treatment in
     the Pulp  and  Paper  Industry,"  NCASI Technical Bulletin No. 190
     (1966) .

137.  "Temperature Relationships in Aerobic Treatment and  Disposal  of
     Pulp and  Paper Wastes,"  NCASI Technical Bulletin No. 191 (1966).

138.  Pelzar, M.J., Jr., Reid, R.D., "Microbiology",  McGraw-Hill  Book
     Company,  1972.

139.  Benedict, A.H.,  and Carlson, D.A.,  "Temperature  Acclimation  in
     Aerobic  BlO-oxidation   Systems,"  Journal Water Pollution Control
     Fed. 4j5,  10  (1973) .

140.  Serafin,  J.  F.,  and Axen, A.,   "Oxygen  Bleaching  at  Aspa  Bruk
     Division of Munksjo A B, Sweden,"  TAPPI Annual Meeting, Jan. 1416
     (1974) .

141.  Oledal, J.,  "Use of the Multi-Roll Press for Dewatering Clarifier
     Sludges," Paper Trade Journal, Jan. 7  (1974).

142.  Carpenter, W. L.f "Mechanical Pressing of Primary Dewatered Paper
     Mill Sludges," NCASI Technical Bulletin No. 174  (1964).

143.  "Great Lakes  Has  Copeland  System  to  Handle  Bark  Fines  and
     Sludge,"  Paper Trade Journal. Oct. 2 (1972).

144.  Aspitarte, T. R., et al., "Pulp and Paper Mill Sludge Utilization
     and Disposal," TAPPI Environmental Conf. (1973).

145.  Harkin, J. M., and Crawford, D. L., "Bacterial Protein from Paper
     Mill Sludges," TAPPI Environmental Conf. (1973).

146.  Vercher,  B. D., et al., "Paper Mill Waste Water  for Crop  Irriga-
     tion  and  Its Effects on the soil," Louisiana State Univ.  Agri-
     cultural Experiment Station Bulletin No. 604  (1965).

147.  Gehm, H. W.,  "Control of Sulfite Pulping  Wastes  in  the  United
     States," Pure and Applied Chemistry, 29, 281  (1972).

148.  Gehm,  H.  W.,  "Factors  Affecting  the  Appearance  of  Surface
     Waters," NCASI Technical Bulletin No.  227  (1969).

149.  Palladino. A. J., "Final Report — Aeration Development Studies,"
     NCASI Technical Bulletin No. 12 (1959).
                             708

-------
150.  Blosser,  R. O. , "Oxidation Pond Studies for Treatment of Deinking
     Wastes,"  Purdue Univ. Industrial Waste Conf. XVII (1962).

151.  Laing,  W. M., "New Secondary Aerated Stabilization Basin  at  the
     Morraine    Division   of   Kimberly-Clark  Corp.,"  Purdue  Univ.
     Industrial Waste Conf. XXIV (1969).

152.  MacAleese,  J.   E.,  "How  Newton  Falls  Solved  a  Clean  Water
     Problem," Paper Trade Journal. Nov. 14 (1966).

153.  Flower, W. A.,  "Spray Irrigation for  the  Disposal  of  Effluent
     Containing Deinking Waste," TAPPI.  52. 1267 (1969).

154.  "Wisconsin Tissue Effluent Plant Pioneers European Process Here,"
     Paper Trade Journal. March 11 (1970).

155.  Nadelman, A. H. , "A Study of Practical Approaches to  Utilization
     of  Solids  from Deinking Mills," NCASI Technical Bulletin No. 67
     (1964) .

156.  Davis,  W. S., et al., "Recycling  Fine  Paper  Mill  Effluent  by
     Means of  Pressure Filtration," TAPPI Environmental Conf. (1972).

157.  Aldrich,  L. C., and Janes, R.  L.,  "White  Water  Reuse  on  Fine
     Paper Machines," TAPPI Environmental Conf.  (1972).

158.  "New Approaches to In-Plant Load Control and  Monitoring,"  NCASI
     Technical Bulletin No. 248 (1971).

159.  Mason,  O.A., Statement by Alaska Lumber and Pulp Co.,  Inc.,  for
     EPA   Public  Meeting  Concerning  National  Pollutant  Discharge
     Elimination System  (NPDES), Application No. 071-OYD-2-000055  and
     Proposed  Permit.

160.  "G-P«s 'Pipe  Organ*  Aeration  System,"  Southern Pulp and Paper
     Manufacturer. May 10  (1972).

161.  "K-C to Spend $92 Million at Coosa Pines Mill to Boost Pulp  Out-
     put and Control Pollution," Paper Trade Journal, May 20  (1974).

162.  Tall Oil  and Its Uses. Pulp Chemicals Assn., New York (1965).

163.  Ellerbe,  R. W., "Why, Where and How U.S. Mills Recover  Tall  Oil
     Soap," Paper Trade Journal. June 25 (1973).

164.  "Resource Engineering  Associates,   "State-of-the-Art  Review  on
     Product Recovery," FWPCA Contract No. 14-12-495, Nov. (1969).

165.  Stengle,  W. B., "Crude Tall Oil  Manufacture,"  Southern Pulp and
     Paper Manufacturer, Dec. 10 (1971).
                             709

-------
166.  Drew,  J., and Pylant, G. D. , Jr., "Turpentine from the  Pulpwoods
     of the United States and Canada," TAPPI, 49, 10 (1966).

167.  Dres,   J.,et  al.,  Sulfate Turpentine Recovery,  Pulp  Chemicals
     Assn., New York (1971).

168.  "Tapping the Chemical Motherlode of the southern Pines," Chem 26/
     Paper Processing,  9, 11 (1973) .

169.  Hearon, K. H., "The  Lignin  Dimethyl  Sulfide  Process,"  Forest
     Products Journal,  7, 13 (1957).

170.  Barton, J. S., "Future Technical Needs and Trends  of  the  Paper
     Industry, By-Products Usages," TAPPI, 56, 6 (1973).

171.  Elgee, H., "A View of the Ligno-Sulfonate Industry,"  AIChE  Sym-
     posium Series, 133, 69  (1973).

172.  Craig, D., "Justification for Pulp and Paper By-Products Develop-
     ment," AIChE Symposium Series, 133, 69  (1973).

173.  Pearl, I. A., "Utilization of Ey-Products of the Pulp  and  Paper
     Industry." TAPPI.  52, 7 (1969).

174.  Wiley, A. J., and Holderby, J. M., VStrong Spent Sulfite Liquors:
     Utilization, By-Products and Marketing,"  Pulp and Paper Magazine
     of Canada, 61, 3  (1960).

175.  "Chemicals from the Other Half of the  Tree,"  Chemical and Engi-
     neering News. 41,  6  (1963) .

176.  Howard, G. C., U.S. Patent No. 1,699,815  (1929).

177.  Serafin, J. F.,  and  Axen,  A.,  "Operating  Experience  of  the
     Chemetics*  Oxygen Bleaching Systems," TAPPI Annual Meeting, Jan.
     14-16  (1974) .

178.  Robeson, J. S. , U.S. Patents No. 1,075,856; 1,075,857; 1,069,029;
     and 1,069,030 (1913) .

179.  Lang,  C. J., and  DeHaas,  G.  G.,  "Acetic  Acid  Recovery  fron
     Sulfite liquor," TAPPI, 53^ 6  (1970).

180.  Testimony of Roland J.  Stanton,  Technical  Director,  Ketchikar
     Pulp   Co.,   Ketchikan,   Alaska,   EPA  Hearing,  EPDES  Permit
     Application No. 081-OY2-2-000094, Aug. 16  (1973).

181.  Gehm,  H. W., "An Overview of Water Reuse Potential  in  Pulp  anc
     Paper  Manufacture,"  Paper presented to AIChE, Washington, D.C.,
     April 26  (1973) .
                            710

-------
182.  Hendrickson,  E. R., and  Oglesby,  H.  S.,  "Process  Design  and
     Operation for zero Effluent Discharge," TAPPI, 57,  4 (1974).

183.  Haynes, D.  C., "Water Recycling in the Pulp and Paper  Industry,"
     TAPPI, 57,  4   (1974).

184.  "Cost of Achieving EPA's BPCTCA and Zero Discharge,"  Paper Trade
     Journal. April 15  (1974).

185.  Gullichsen, J., "Status of Kamyr Displacement Bleaching Project,"
     Paper Trade Journal. July 30 (1973).

186.  "New Pulp Bleaching System to be Part of Eastex Mill  Expansion,"
     Paper Trade Journal, Apr. 29 (1974).

187.  Serafin, J. F., and Andrews, D. H., "Oxygen Bleaching Development
     from  Laboratory  Scale  Experiments  to  Full  Scale  Commercial
     Installation  and  Operation,"  TAPPI  Annual Meeting, Jan. 14-16
     (1974) .

188.  Lowe, K. E.,  "Chesapeake  Launches  Oxygen  Bleaching,"  Pulp and
     Paper, Oct.  (1973) .

189.  Private communication (1974).

190.  Fary,  D.  A.,  and  Schmitt,  "Oxygen  Bleaching  at  Chesapeake
     Corporation," TAPPI Environmental Conf., Apr. 17-19  (1974).

191.  Standard Methods for the Examination  of  Water  and  Wastewater,
     APHA,  AWWA,   and  WPCF,  American Public Health Assn., Inc., New
     York  (1971) .

192.  "An Investigation of Improved Procedures for Measurement of  Mill
     Effluent  and  Receiving  Water  Color," NCASI Technical Bulletin
     No. 253  (1971).

193.  Kreissl, J.  F., "Granular Media  Filtration  of  Wastewater:   An
     Assessment,"  EPA,  National  Environmental  Research Center, Ad-
     vanced Waste  Treatment  Research  Laboratory,  Cincinnati,  Ohio,
     Jan.  (1973) .

194.  Cruver, J. E., "Reverse Osmosis fcr Water Reuse,"  Gulf  Environ-
     mental  system Co., Paper presented at the National Conf. on Com-
     plete Water Reuse, Washington, E.G., Apr.  (1973).

195.  Schwonke, P.   A., and Davis, W.  S.,  "Enzyme  Enhanced  Turbidity
     Removal through Primary Treatment," TAPPI, 56, 1 (1973).

196.  Baumann, E.  R.,"Design of Filters  for Advanced Wastewater  Treat-
     ment,"  Iowa  State  University, Department of Civil Engineering,
                              711

-------
     Paper presented at EPA Technology Transfer Design Seminar,  Ames,
     Iowa, June (1973).

197.  Weber, Walter  J.,  Jr.,   Physico-chemical  Processes  for  Water
     Quality Control, Wiley-Interscience, New York 1972.

198.  Pilot Plant Studies  of  Turbidity  and  Residual  Cell  Material
     Removal  from  Mill  Effluent by Granular Media Filtration. NCASI
     Tech. Bull. No. 266, May 1973.

199.  Tchobanoglous, G.r "Filtration Techniques in Tertiary  Treatment,
     Journal Water Pollution Control Federation. 42, April 1970.

200.  Tchobanoglous, G.,  and  Eliassen,  R.,  "Filtration  of  Treated
     Sewage  Effluent,"  Journal of the Sanitary Engineering Division,
     ASCE, April 1970.

201.  Gulp, G.L., and Hansen, S.P.,  "Extended  Aeration  Polishing  by
     Mixed Media Filtration", Wajbgr and Sewage Works, February 1967.

202.  Culp, R. L., and Gulp, C.L., Advanced Wastewater  Treatment,  Van
     Nostrand Reinhold, New York, 1971.

203.  Vecchiolo, Jr., et. al., "Wastewater  Reclamation  and  Recharge,
     Bay  Park,  New York, Journal Sanitary Engineering Division ASCE,
     April 1975.

204.  Middlebrooks, E.J., et. al., "Evaluation of Techniques for  Algae
     Removal from Wastewater Stabilization Ponds," Utah Water Research
     Laboratory, Utah State University, Logan, Utah, January 1974.

205.  Baumann, E.R.,  "Design  of  Filters  for  Advanced  Waste  Water
     Treatment,"  Project 1002-S, Engineering Research  Institute, Iowa
     State University, Ames, Iowa, June 1973.

206.  Leitner, G. F., "Reverse Osmosis  For  Waste  Water  Treatment   -
     What? When?,"  TAPPI 8th Water & Air Conf.  (1971).

207.  Morris, D. C., Nelson, W. R., and Walraven,  G.  O.,  Recycle  of
     Paper  Mill Wastewaters and Application of Reverse Osmosis, Green
     Bay  Packaging. Inc.. EPA 12040 FEE, Jan.  (1972).

208.  Wiley, A.  J., Dubey, G. A., and Eansal,  J.  K.,   Reverse Osmosis
     Concentration of Dilute Pulp and Paper Effluents,  The Pulp Manu-
     facturers  Research League and The Institute of  Paper  Chemistry,
     EPA  12040  EEL, Feb.  (1972).

209.  Johnson, J. S., Jr., Minturn, R. E., and Moore, G. E.,  Hyperfil-
     tration   (Reverse  Osmosis) of Kraft Pulp Mill  and Bleach Wastes.
                             712

-------
     Chemistry Division, Oak Ridge National  Laboratory   (unpublished)
     (1973) .

210. Beder,  H., and Gillespie, W. J., "The  Removal  of  Solutes  from
     Pulp Mill Effluents by Reverse Osmosis," TAPPI, 53, 5  (1970).

211. Smith,R., and McMichael,  W.  F.,  Cost and Performance Estimates
     for Tertiary Wastewater Treatment Processes,  FWPCA,   U.S.  Dept.
     of the Interior, June  (1969).

212. Direct Filtration of Secondary Effluents, EPA Technology Transfer
     Program, Engineering Research Institute; Iowa  State   University,
     Ames, Iowa; Newark, N.J., Mar. 13-15  (1974).

213. Ultra High Rate Filtration of Activated Sludge Plant Effluent,
     EPA Office of Research and  Monitoring,  Washington,   D.C.,  Apr.
     (1973) .

214. Nelson, W. R., Walraven, G. O., and Morris, D. C., "Process Water
     Reuse and Upset Control Modification at an Integrated  NSSC Mill,"
     TAPPI,  56, 7  (1973).

215. McCuaig, W. B., Atkins, P. P., Jr., and Lueck, B.  L.,  Physical-
     Chemical  Treatment  of Combined Municipal Pulp and Paper Wastes,
     TAPPI Environmental conf.  (1974).

216. Bishop, H. K., Use of Improved Mecr.tranes in Tertiary Treatment by
     Reverse Osmosis,  McDonnell  Douglas  Astronautics  Company,  EPA
     17020 DHR, Dec. (1970).

217. Kreusch, E., and Schmidt, K.,  Wastewater Demineralization by ion
     Exchange, Culligan International Co., EPA 17040 EEE, Dec.  (1971).

218. Herbert, A. J., "A Process for Removal  of  Color  from  Bleached
     Kraft  Effluents  through  Modification  of the Chemical Recovery
     System,"  NCASI Technical Bulletin No. 157  (1962), U.S. Patent   #
     3,120,464.

219. Berger, H. F., and Thibodeaux, L. J,, "Laboratory and  Pilot  Stu-
     dies  on  Water  Reclamation,"  NCASI  Technical Bulletin No. 203
     (1967) .

220. Linstedt, K. D., Houck,  C.  P.,  and  O'Connor,  J.   T.,  "Trace
     Element  Removals  in  Advanced  Wastewater Treatment  Processes,"
     Journal WPCF, 43, 7  (1971).

221. Gregory, J«» and Dhond, R. V., "Wastewater Treatment by  Ion  Ex-
     change," Water Research  (Great Britain), Pergamon Press  (1973).
                               713

-------
222. Gulp, R. L.,  and  Gulp,  G.  L.,  Advanced Waste Treatment,  Van
     Nostrand Reinhold, New York (1971).

223. Optimization of Ammonia Removal by Ion Exchange Using Clinoptilo-
     lite. University of California, EPA 17080 DAP, Sept. (1971).

224. Wastewater Ammonia Removal by Ion  Exchange,  Battelle-Borthwest,
     EPA 17010 EEZ, Feb.  (1971).

225. Johnson,      W.      K.,      and      Vania,       G,       B.,
     Nitrification and Denitrification  of Waste Water,  University of
     Minnesota, EPA Research Grant Number WP 01028, Jan.  (1971).

226. Nitrogen Removal From Wastewaters, EPA Federal Water Quality  Re-
     search  Laboratory, Advanced Waste Treatment Research Laboratory,
     Cincinnati, Ohio, Oct.  (1970).

227. Shindala, A., "Nitrogen and Phosphorus Removal From Wastewaters  -
     Part I," Water and Sewage Works, June (1971).

228. Shindala, A., "Nitrogen and Phosphorus Removal From Wastewaters  -
     Part II," Water and Sewage Works, July  (1971).

229. Process Design Manual for Carbon Adsorption,    EPA    Technology
     Transfer, Oct.  (1973).

230. Hansen, S. P., and Eurgess, F. J.,  "Carbon  Treatment  of Kraft
     Condensate Wastes." TAPPI, 51, 6  (1968).

231. Rimer, A. E., et al., "Activated Carbon System for  Treatment  of
     Combined  Municipal  and  Paper  Mill  Waste Waters in Fitchburg,
     Mass.," TAPPI, 54, 9  (1971).

232. Smith, D. R., and Berger, H. F.,  "Waste Water Renovation," TAPPI,
     51, 10  (1968).

233. Timpe,  W.  G.,  et  al..   TherUse of Activated Carbon for Water
     Renovation in Kraft Pulp and Paper Mills.    7th  TAPPI   Air  and
     Water Conf,,  (1970).

2J4. Timpe, W. G., and Lang, E. w.,   "Activated  Carbon  Treatment:  of
     Unbleached Kraft Effluent for Reuse - Pilot Plant Results," TAPPI
     Environmental Conf.  (1973) .

235. Coates,   J.   and  McGlasson,  W.   G.,   "Treatment  of  Pulp  Mill
     Effluents           With            Activated            Carbon,"
     NCASI Technical Bulletin No. 199  (1967).

236. Davies, D. S. and Kaplan, R.  A.,  "Activated  Carbon  Eliminates
     Organics," Chemical  Engineering  Progress, 60, 12  (1964).
                              714

-------
237. Bishop, D. F., et al.,"Studies on  Activated  Carbon  Treatment,"
     Journal WPCF.  39, 2  (1967).

238. Vanier, C., et al.. Carbon Column Operation in Waste Water Treat-
     ment, Syracuse University, Syracuse, New York, Nov.  (1970).

239. Weber, W. J., Jr., and Morris, J. C., "Kinetics of Adsorption  in
     Columns of Fluidized Media,"  Journal WPCF, 37, 4,  (1965).

240. Beebe, R. L., and Stevens, J. I., "Activated  Carbon  System   for
     Wastewater    Renovation,"   Water and Wastes Engineering,   Jan.
     (1967) .

241. Holm, J. D., "A Study of Treated Wastewater Chlorination,"  Water
     and Sewage Works, Apr.  (1973).

242. Meiners, A. F.,  Light-Catalyzed Chlorine Oxidation for Treatment
     of Wastev>ater, EPA, Water Quality Office, Midwest Research Insti-
     tute, Kansas City, Missouri, Sept.  (1970).

243. Huibers, T. A.,  et  al..  Ozone Treatment of Secondary Effluents
     from Wastewater Treatment Plants,  EPA,  Robert A. Taft Water  Re-
     search center. Report No. TWRC-4, Apr.  (1969).

244. Chen,      J.       W.,       and       Smith,       G.        V.,
     Feasibility Studies of Applications
     of Catalytic Oxidation in Wastewater,   EPA,   Southern   Illinois
     University, Carbondale, Illinois, Nov.  (1971).

245. Eckenfelder, W. W., Jr., Krenkel, P. A., and Adams,  C.   A.,   Ad-
     vanced Waste Water Treatment,   American  Institute  of   Chemical
     Engineers, New York (1972) .

246. Moggio, W. A., "Experimental Chemical Treatments for  Kraft  Mill
     Wastes,"  NCASI Technical Bulletin No.  50  (1952).

247. Oswalt, J. L., and Lund,  J.  G.,  Jr.,  Color Removal from Kraft
     Pulp Mill Effluents by Massive  Lime Treatment,   EPA  12040   DYD
     (1973) .

248. Swanson, J.  W.,  et  al.,  Kraft Effluent Color Characterization
     Before and After StQichiometric Lime Treatment,   EPA  12040   DKD
     (1973) .

249. Lowe, K. E., "Is Pulping  Technology  on  Verge  of  Revolution,"
     Pulp & Paper, July  (1974) .

250. Private Communication, Interstate Paper Corporation  (1973).
                             715

-------
251.  Rapson, W. H., and Reeve, D. W., "Bleached Kraft Pulp  Mills  Can
     be  Made  Free of Liquid Effluents," Paper Trade Journal, Oct. 16
     (1972) .

252.  Ranhagen, G., "The Entirely Closed Mill - A Utopia or a Realistic
     Approach," Paper Trade Journal, Jan. 22 (1973).

253.  Chang,  H,, Reeves, R. H., McKean, W. T., and Gratel, J. S., "Sem-
     inar on Soda-Oxygen Pulping Held by North Carolina State  Univer-
     sity,"  Paper_Trade Journal, Sept. 10 (1973).

254.  Gilmont, P. L., "Water Requirements of Pulp Bleaching - Survey of
     Mill Practice in the United States," TAPPI, 50, 10  (1967).

255.  Histed, J. A., and Nicolle, F. M. A., "Water Reuse and Recycle in
     Kraft  Bleacheries,"  Pulp and Paper Magazine of Canada,  74,  12
     (1973).

256.  Histed, J. A., and Nicolle, F. M. A., "Water Reuse and Recycle in
     the DcEDED Bleach Sequence," CPPA-TAPPI  Conf.,  Vancouver,   B.C.
     Sept.   (1973).

257.  Gall, R. J.,  and Thompson, F. H., "The Anti-Pollution Sequence
     A  New Route  to Reduce Pollutants in Bleach Effluent," TAPPI, 56,
     11 (1973).

258.  Improved  Machinery,  Inc.,  Impcp  Papribleach  Pulp   Bleaching
     Process,  (Trade Pamphlet), Nashua, N.H.   (1972).

259.  Jamieson, A., Noreus, S., and Pettersson, B., "Advances in  Oxygen
     Bleaching  III,  Oxygen   Bleaching   Pilot   Plant   Operation,"
     TAPPI, 54, 11 (1971) .

260.  Lescot, J. C., "Oxygen Bleaching - A Flexible Process for  Pollu-
     tion Abatement," CPPA-TAPPI Conf., Vancouver, B.C.,  Sept.  (1973).

261.  Lowe,  K.  E.,  "Bleaching  at  Crossroads,"  Pulp  & Paper.   Aug.
     (1973)  .

262. Carpenter, W. L., McKean, W. T., Berger,  H. F., and  Gellman,  I.,
     "A  Comparison  of Effluent Characteristics from Conventional and
     Oxygen Bleaching Sequences -  Results   of  a  Laboratory   Study,"
     CPPATAPPI Conf., Vancouver, B.C., Sept.  (1973).

263. Berger, H. F., "Development of  an Effective Technology   for  Pulp
     and Bleaching Effluent Color Reduction,"  NCASI Technical  Bulletin
     No. 228,  (1969) .

264. Spruill,  E.  L., Draft of Final  Report,   Color Removal  and Sludge
     Disposal  Process for Kraft Mill Effluents, EPA 12040 DRY  (1973) .
                               716

-------
265. "Treatment of Calcium-Organic Sludges Obtained From  Lime  Treat-
     ment  of  Kraft  Pulp Mill Effluents — Part I,"  NCASI Technical
     Bulletin No. 62 (1955) .

266. "Treatment of Calcium-Organic Sludges Obtained From  Lime  Treat-
     ment  of  Kraft  Pulp Mill Effluents — Part II," NCASI Technical
     Bulletin No. 75 (1955).

267. "Development Studies on the Removal of Color from Caustic Extract
     Bleaching Effluent by the Surface Reaction Process —  Part  II,"
     NCASI Technical Bulletin No. 107  (1958) .

268. Berger, H. F., and Brown, R. I.,  "The Surface Reaction Method for
     Color Removal from Kraft  Bleachery  Effluents,"  NCASI Technical
     Bulletin No. 119.  (1959) .

269. "Development Studies on the Removal of Color from Caustic Extract
     Bleaching Effluent by the Surface Reaction Process —  Part  II,"
     NCASI Technical Bulletin No. 122  (1959).

270. Davis, C.  L.,  Color Removal from Kraft Pulping Effluent by Lime
     Addition, Interstate Paper Corporation, EPA 12040 ENC  (1971).

271. Spruill, E.L., Color Removal and  Sludge Recovery from Total  Mill
     Effluent, TAPPI Environmental Conf. (1972).

272. Gould,  M.,   Color Removal from  Waste Effluents,   U.S.   Patent
     3,531,370 (1970) .

273. Spruill, E. L., "Color Removal from Paper Mill  Waste,"  Proceed-
     ings Purdue Univ. Industrial Waste Conf. XXV (1970).

274. Private Communication, Continental Can Company, Inc. (1973).

275. Gould, M., "Color Removal from Kraft Mill Effluent by an Improved
     Lime Process," TAPPI, 56, 3 (1973),

276. Gould, M., "Physical - Chemical Treatment of  Pulp  Mill  Wastes,
     Woodland,  Me.,"  Proceedings Purdue Univ. Industrial Waste Conf.
     XXV  (1970) .

277. Private Communication, Georgia Pacific Corporation  (1974).

278. Private Communication, International Paper Company  (1974).

279. Berov, M. B., et al.,  "pH  and   the  Effectiveness  of  Effluent
     Treatment,"     Bum. Prom.      (USSR),     No.     2,    6(1973);
     Abs. Bull. Inst. Paper Chem., 44, 1561  (1973).
                            717

-------
280. Willard, H. K. , "Coagulation of Pulp  and  Paper  Aerated  Lagoon
     Effluents  for Color and Solids Removal," AIChE Symposium Series,
     69 (1973).

281. Smith, S. E., and  Christman,  R.  F.,  "Coagulation  of  Pulping
     Wastes  for  the Removal of Color," Journal WPCF, 41, 2., Part I,
     (1969) .

282. Middlebrooks, E. J., et al. , "Chemical coagulation of Kraft  Mill
     Wastewater," Water and Sewage Works, 116, 3, (1967).

283. Scott, R. H., "Sophisticated Treatment at  Baikal  Pulp  Mill  in
     U.S.S.R.," Pulp and Paper, Apr.  (1974).

281. Private Communication, Gulf  States  Paper,  Tuscaloosa,  Alabama
     (1974) .

285. Fremont, H. A., Tate, D. C., and Goldsmith, R. L., "Color Removal
     from Kraft Mill Effluents by Ultrafiltration," Environmental Pro-
     tection Technology Series, EPA-660/2-73-019, Office  of  Research
     and Development, EPA, Dec.  (1973).

286. Private Communication, Union Carbide Corp., S. Charleston, W. Va.
     (1974) .

287. Rock, S. L., Kennedy, D. C., and Brunner,  A.,   "Decoloration  of
     Kraft  Mill  Effluents with Polymeric Adsorbents," TAPPI Environ-
     mental conf., Apr. 17-19  (1974).

288. Anderson, L. G., Groddevall, B., Lindberg, S., and Phillips, Jr.,
     "A New Color Removal Process:  A  Field  Report,"  TAPPI, 57,    4
     (1974) .

289. Sanks, R. L., "Ion Exchange Color and Mineral Removal from  Kraft
     Bleach  Wastes," Environmental Protection Technology Series, EPA-
     R2-73-255, Office of Research and Monitoring, EPA May  (1973).

290. McGlasson, W. G., et al.,  "Treatment of  Pulp Mill  Effluents  with
     Activated Carbon," MCASI Bulletin No. 199  (1967).

291. Whittemore, R.  C., "An Evaluation of the Adsorptive Properties of
     Fly Ash and Bark-Derived Activated Char,"  NCASI Technical Bulle-
     tin No. 267  (1973) .

292. Hanzawa, M.,  et al.,  "Clarification  of NSSC   Waste  Liquor  by
     Active  Carbon,  etc.,"  Res.  Bull. Coll. Expt. Forests Hokkaido
     Univ.(Jup.),  29,   361   (1972);   Abs. Bull  Inst.  Paper Chem..   43,
     11803  (1973).
                              718

-------
293. MacDonald, D. G., and Nguyen, T. , "Activated Carbon from Bark for
     Effluent Treatment," Pulp S Paper, 75, 5 (1974).

294. Bauman, H. D., and Lutz, L. R., "Czonation of a Kraft Mill Efflu-
     ent," TAFPI Environmental Conf., Apr. 17-19  (1974).

295. Rapson, B., Sullivan, D. P., and Brothers, J. A., "NSRF seawater-
     Lime Clarification  Process  for  Kraft  Effluents,"  Paper Trade
     journal. Feb. 25  (1974).

296. "Color  Removal  Process,"    Pulp and Paper International.   May
     (1973) .

297. Twitchell, J. P.,  and  Edwards,  L.  L.,  "Kraft  Mill  Material
     Balance  Calculations  for  Brown  Stock  Washing,  Screening and
     Oxygen Bleaching,".TAPPI Environmental Conf. (1974).

298. Narrstrom, H,, "The Environmental Care  Project  of  the  Swedish
     Pulp and Paper Industry," TAPPI environmental Conf. (1974).

299. Nichols,  G.  A.,  "Kraft  Multistage  Bleach  Plant  Effluents,"
     TAPPI, 56, 3  (1973).

300. Chen, H. T., et al., "Evaluation of Four  Biological  Systems  on
     Integrated   Paper  Mill  Effluent,"  TAPPI  Enviornmental  Conf.
     (1974) .

301. Gillespie, W. J., et al., "A Pilot Scale Evaluation of the  Effi-
     cacy  of  Rotating Biological Surface Treatment of Pulp and Paper
     Mill Wastes," TAPPI Environmental Conf.  (1974).

302. MaAliley, J. E., "A Pilot Plant Study of  a  Rotating  Biological
     Surface for Secondary Treatment of Unbleached Kraft Mill Wastes,"
     TAPPI Environmental Conf.  (1974).

303. Gorham   International   Inc.,    Study of Solid Waste Management
     Practices in the Pulp and Paper Industry,  EPA,  Office  of Solid
     Waste Management Program, Feb.  (1974).

304. Tyler, M. A., and Fitzgerald, A. D.,  "A  Review  of  Colour  Re-
     duction  Technology  in Pulp and Paper Mill  Effluents," Presented
     at the 58th Annual Meeting  Technical  Section,  CPPA,  Montreal,
     Jan. 24-28  (1972) .

305. Vogt,  C.,  Development   Document    for   Effluent   Limitations
     Guidelines   and   New   Source  Performance Standards  for  the
     Unbleached Kraft and  semichemical  Pulp  Segment  of  the  Pulpf
     Paper,  and Paperboard Point source Category, U. S. Environmental
     Protection Agency, EPA-440/ 1-74-025-a, May  1974.
                              719

-------
306.  TAPPI Mag., American Defibrator, Vol. 59, No. 2. February 1976.

307.  American   Paper   Institute,   Comments   Concerning    Effluent
     Limitations  and Guidelines for Existing Sources and Standards of
     Performance and Pretreatment Standards for New  Sources  for  The
     Bleached  Kraft,  Groundwood,  Sulfite,  Soda,  Deink,  and  Non-
     Integrated Paper Mills Segment of the Pulp, Paper, and Paperboard
     Point Source Category; Federal Register, September, 5, 1975, Vol.
     40, No. 173.

308.  Libby, Earl C.; Pulp and Paper Science and  Technology;  Vol.   I
     Pulp; McGraw - Hill Book Co., NY, NY. 1962.

309.  Button, N.; ITT - Rayonier, Inc. Correspondence; December 1975.

310.  Clark, J. W. and Viessman, W., Jr., Water  Supply  and  Pollution
     Control, International Textbook Company  (1970).

311.  McKinney, E. E., Microbiology for Sanitary  Engineers,  McGraw  -
     Hill Book Company  (1962).

312.  Brock, T. D.,  Biology  of  Microorganisms,  Prentice-Hall,  Inc.
     (1970)

313.  E. J. Kirsch, Private Communication, Purdue University.

314.  Metcalf & Eddy, Inc., Wastewater  Engineering,  McGraw-Hill  Book
     Company, Chapter 10  (1972) .

315.  Streeter, H. W. and Phelps, E. B., "A Study of the Pollution  and
     Natural  Purification  of  the Ohio", Public Health Bulletin 146,
     United States Public Health Service, February  (1925).

316.  Vamvakias, J. G. and Miller,  J.  P.,   "Temperature  Response  of
     Aerated  Stabilization  Basins With and  Without Nutrients," Fifth
     Paper—Industry and Stream Improvement Conference, Canadian  Pulp
     and Paper Association, Technical Paper T87.

317.  T. W. Beak Consultants  Limited,  "Biological  Treatment  Study,"
     Government of Canada, Ottawa, Canada, September  (1972) .

318.  McKeown, J. J.; Buckley D. B.; and Gellman,  I.,   "A  Statistical
     Documentary  on  the  Performance of Activated Sludge and Aerated
     Stabilization Basin Systems Operating   in  the  Paper  Industry,"
     Purdue Industrial  Waste Conference XXIX  (1974) .

319.  "A Manual  of Practice for Biological Waste Treatment in the  Pulp
     and Paper  Industry," NCASI Technical Bulletin  f214.
                                720

-------
320. Burns, 0. B., Jr. and Eckenfelder, W.  W.,  Jr.,  "A  Statistical
     Study  of  Five  Years' Operation of West Virginia Pulp and Paper
     Company's  Waste  Treatment  Plant,"  Purdue   Industrial   Waste
     Conference XVIII (1963).

321. Dorr Oliver,  Inc.,  Stamford, Connecticut,

322. American Water Works Association, Water Treatment  Plant  Design,
     AWWA, Inc. (1969).

323. Ford, D. L.;  Shin,   C.  S.;  and  sebesta,  E.  C.,  "Temperature
     Prediction in Activated Sludge Basins Using Mechanical Aerators,"
     Purdue Industrial Waste Conference XXVII (1972).

324. Adams, C. E., Jr.,  et al, "The Development of Design Criteria for
     Wastewater  Treatment  Processes,"  Proceedings  of  a   Seminar,
     Vanderbilt University, April (1975).

325. Eckenfelder,  W. W.  and Ford,  D.  L.,  Water  Pollution  Control,
     Jenkins Book Publishing Company  (1970).

326. Babcock & Wilcox, Inc.; Personnel Communication.

327. TAPPI Mag.; Vol. 54, No. 4 Page 564.

328. Amberg, H. Crown Zellerbach Corp.; Correspondence, Sept. 1975.

329. Brown,  S.,  Philip,  D.;  "Color  Removal  from  Bleached  Kraft
     Effluents."   Dow   Chemical   Co.;  Presented  at  TAPPI  Envir.
     Conference, May 1975.
                              721

-------
                             SECTION XIV


                               GLOSSARY


Active alkali

A  measure  of  the strength of alkaline pulping liquor indicating the
sum of caustic soda and sodium sulfide expressed as Na20.

Air Dry (AD)  Ton

Measurement of production including a moisture content of  10  percent
by weight.

Bark

The protective covering of a tree.

Barking

Removal of bark from logs in a wet or dry process.

Black Liquor

Spent  liquor  recovered  from a kraft digester up to the point of its
introduction into the recovery plant.

Bleaching

The brightening and delignification of pulp by addition  of  chemicals
such as chlorine.

Blow

Ejection of the chips from a digester.

Boil-Out

A  procedure, usually utilizing heat and chemicals, to clean equipment
such as evaporators, heat-exchangers, and pipelines.

Breaker Stack

Two rolls, one above the other, placed in the dryer section of a paper
machine to compact the sheet and smooth out its surface defects.
                             723

-------
Broke

Partly or completely  manufactured  paper  that  does  not  leave  the
machine  room  as  salable  paper  or  board;  also  paper  damaged in
finishing operations such as rewinding rolls, cutting, and trimming.

Calender Stack

Two or more adjacent and revolving rolls which  provide  even  calipe:
control of the sheet and the final finishing of its surface.

Cellulose

The  fibrous constituent of trees which is the principal raw material:
of paper and paperboard.

Chest (or Stock Chest)

Tank used for storage of wet fiber or furnish.

Chips

Small pieces cf wood used to make pulp.

Color Unit

A measure of color concentration in water using NCASI methods.

Consistency

A weight percent of solids in a solids-water mixture used in the manu
facture of pulp or paper.

Cooking

Heating of wood,  water,  and  chemicals  in  a  closed  vessel  unde
pressure  to  a  temperature sufficient to separate fibrous portion o
wood by dissolving lignin and other nonfibrous constituents.

Cooking Liguor

The mixture of chemicals and water used to  dissolve  lignin  in  woo
chips.

Countercurrent Washing

Pulp  washing in which  fresh water is added only at the last stage  an
the effluent from this  stage is  then  used  as  wash  water  for   tlr
previous stages.

Decker

A  mechanical device used to remove water or spent cooking  liquor frc
pulp, and to thicken pulp consistency.
                             724

-------
Digester

A pressure vessel used to cook wood chips in the presence  of  cooking
liquor and heat.

Digestion

Cooking of chips in the above manner.

Dregs

The inert rejects from the green liquor clarifier of a pulp mill.

Extraction Water

Water removed during a pulp manufacturing process.

Felt

The  endless  belt  of  wood or plastic used to convey and dewater the
sheet during the papermaking process.

Fiber

The cellulosic portion of the tree  used  to  make  pulp,  paper,  and
paperboard.

Fjnes

Fiber fragments produced by fiber cutting in beaters.

Furnish

The mixture of fibers and chemicals used to manufacture  paper.

Gland

A  device  utilizing  a  soft wear-resistant material used to minimize
leakage between a rotating shaft  and  the  stationary   portion  of  a
vessel such as a pump.

Gland Water

Water used to lubricate a gland.  Sometimes called "packing water."

Grade

The type of pulp or paper product manufactured.

Green Liquor

Liquor  made  by dissolving chemicals  recovered from the kraft process
water and weak  liquor preparatory to causticizing.

Grits

                             725

-------
Unreactive materials mechanically removed  from  the  causticizing  of
kraft and soda green liquor and disposed of as solid waste.

Headbox

The  area  of  the  paper machine from which the stock flows through a
sluice onto the wire.

Integrated

A term used to describe a pulp and paper mill operation in  which  all
or some of the pulp is processed into paper at the mill.

Lignin

A non-degradable organic compound of wood.

Newsprint

Paper  made  largely  frcm groundwood pulp, with a small percentage o:
chemical pulp added for strength, used  chiefly  in  the  printing  of
newspapers.

Packing Water

See Gland Water.

Prehydrolysis

Pre-steaming  of chips in the digester prior to cooking; usually asso
ciated with improved bleaching of kraft pulp.

Pulp

Cellulosic fibers after conversion from wood chips.

Pulper

A mechanical device resembling a large-scale kitchen blender  used  t
separate fiber bundles in the presence of water prior to papermaking.
                             726

-------
Ray Cells

Cells  which  carry  stored  food (protein, starch, and fats) from the
bark to the wood of a tree and appear as  impurities  in  the  pulping
process, especially unbleached operations.

Rejects

Material  unsuitable  for pulp or papermaking which has been separated
in the manufacturing process.

Save-all

A mechanical device used  to  recover  papermaking  fibers  and  other
suspended solids from a waste water or process stream.

Screenings

Rejects separated from useable pulp by a device such as a screen.

Side-Hill Screens

Steeply sloped, 60-mesh screens.

Spent Cooking Liquor

Cooking  liquor  after  digestion  containing  lignaceous  as  well as
chemical materials.

Stock

Wet pulp with or without chemical additions.

Suction Box

A rectangular box with holes or slots on its top surface, used to suck
water out of a felt or paper sheet by the application of vacuum.

Suction Couch Roll

A rotating roll containing holes through which water is sucked out  of
a paper sheet on a fourdrinier machine, by the application of vacuum.

Sulfidity

Sulfidity  is  a  measure  of  the  amount  of sulfur in kraft cooking
liquor.  It is the percentage ratio  of  NaS,  expressed  as  NaO,  to
active alkali.
                                 727

-------
1 Stainless Steel

1 Stainless Steel is steel with the following composition:

              Carbon          0.08 percent maximum
              Manganese       2.00 percent maximum
              Silicon         1.00 percent maximum
              Chromium       18.00-20.00 percent
              Nickel         11.00-10.00 percent
              Molybdenum      3.00- U.OO percent
                     Remainder iron

Virgin Wood Pulp (or fiber)

Pulp made from wood, as contrasted to waste paper sources of fiber.

Wet Laps

Rolls  or  sheets  of  pulp of 30-45 percent consistency prepared in a
process similar to papermaking; facilitates transportation  of  market
pulp.

Wet Strength Additives

Chemicals  such as urea and melanine formaldehydes used in papermaking
to impart strength to papers used in wet applications.

White Liquor

Liquors made by causticizing green liquors; cooking liquor.

White Water

Water which drains through the wire of a paper machine which  contains
fiber, filler, and chemicals.

Wire

An  endless  moving belt made of metal or plastic, resembling a window
screen, upon which a  sheet  of  paper  is  formed  on  a  fourdrinier
machine.
                               728

-------
A.

A.

AD Pulp

ADT

APHA

API

APS

ASB

atm

AWT

B.

BATEA

BCT

BK

BOD or BODj>

BPCTCA


BTU

C

C

°C

C+F

CMN

CMP

COD

cu m/min
                SECTION XV

            TERMINOLOGY INDEX


Activated Sludge

When associated with a mill code, refers to new data

Air Dried Pulp

Air dry tons

American Public Health Association

American Paper Institute

anti-pollution sequence

Aerated Stabilization Basin

atmospheres

Advanced Waste Treatment

Board or Paperboard

Best Available Technology Economically Achievable

Paperboard, Coarse, Tissue

Bleached Kraft

Biochemical Oxygen Demand (five-day)

Best Practicable Control Tehcnology Currently
Available

British Thermal Units

Clarifier

Coarse

degrees Centigrade

Clays and Fillers

Coarse, Molded, Newsprint

Chemi-mechanical Pulp

Chemical Oxygen Demand

Cubic meters per minute
                                 729

-------
cu.  m./kkg

D

DAF

Diss.

DO

E. Coli.

ENR

F

FACET

oF

Fwp

IIQII

gal

gpd/sq. ft.

gpm

GW

ha

hp

IDOD

IJC

in. Hg

JTU

kg

kg BOD/kg
 MLUSS/day

kg/ha  sur-
 face  area/
 day

kg/kkg
Cubic meters per 1000 kilograms

De-ink

Dissolved Air Flotation

Dissolving

Dissolved Oyxgen

Escherica Coliform

Engineering News Record

Fine

Fine Activated Carbon Effluent Treatment

degrees Fahrenheit

from waste paper

Gravity

gallons

gallons per day per square foot

gallons per minute

Groundwood

hectare, 10,000 meter squared

horsepower

Immediate Dissolved Oxygen Demand

International Journal Commission

inches of Mercury

Jackson Turbitity Units

kilogram, 1000 grams


kilogram of BOD per kilograms of MLVSS  per  day



kilograms per hectare of  surface area per day

kilograms per 1000 kilograms
                           730

-------
kg/sq cm

kgal

kgal/ton

kkg

kw

L

Lpd/sq. m.

L/kkg

L/min.

Liquor
 Recovery



Ib

Ib/ac/day

mgd

mg/1

MKT

MLSS

MLVSS

MM

mu

N

N(NSM)


N.A.

NAB

NCASI

NI

nm
kilograms per square centimeter

1000 gallons

1000 gallons per ton

1000 kilograms, metric ton

kilowatt

liter

liters per day per square meter

liters per 1000 kilograms

liters per minute


C - Collected
B - By-products
I - Incinerated

pound

pound per acre per day

million gallons per day

milligrams per liter

market

Mixed Liquor Suspended Solids

Mixed Liquor Volatile Suspended Solids

Maximum Month

millimicrons

News

non-standard methods when associated with
data

Not Available

Natural Aeration Basin

National Council for Air and Stream Improvement

Non-Integrated

nano meters, 10-  meters
                             731

-------
NOV

NPDES


NSPS

NSSC

P

PCB

PCU

PP

ppm

PS

psig

RBS

rpm

RWL

S

SB

Set Slds

SO

SSL

Std. Meth.

T

TAPPI


TC

TDS

Temp

TMP

TOC
Number of Values Reported

National Pollutant Discharge Elimination
System

New Source Performance standards

Neutral Sulfite Semi-chemical

Pulp

Polychlorinated biphenyl

Platinum Color Units

Purchased Pulp

parts per million

Post Storage

pounds per square inch gage

Rotating Biological Surface

revolutions per minute

Raw Waste Load(s)

Sulfite

Settling Basin

Settleable Solids

Soda

Spent Sulfite Liquor

Standard Methods

Tissue

Technical Association of the Pulp
and Paper Industry

Total Carbon

Total Dissolved Solids

Temperature

Thermo-mechanical Pulp

Total Organic Carbon
                            732

-------
TOD

TOM

ton

tpd

TS

TSS

turbid

TVS

Type
 Condenser



UK
Total Oxygen Demand

Total Otganic Matter

1000 pounds (short ton)

tons per day

Total Solids

Total Suspended Solids

Turbitity

Total Volatile Solids
V - Vapor Recompression
S - Surface Condenser
B - Barometric Condenser

Unbleached Kraft
                              733

-------



































^_
OJ
CM



5*
• —

Z
M
«3J
H
m
o

8










o
rt
.0
a
H

o it
•r4
in
0)
£»
d
O
U












^_
tn
f-.
n
z


K
10
M
>-)
O
z
M


^4
t ^
0*
M

a
X





4J
•H
C
D

O
• r-t
1-1
4J
01
SI








C
o
•H
4J
ro
'>>
01
u
|



c
o
•rl
ill
i-t
>
O
u




K
0
4J
10
••4
HI

a
f^







±}
.,4
c
D

r".
in
•H
rt
o\
c
W






£•
10
O>
O
rt
•H
IB X 01 OJ
a v 4.1 4-1
•r< U> 3 3 Ul 01
J-f 01 C C J-4 t)
O -H -H -H 01 (0
f-t H & G 4J M
(0 O "X \ CJ CP
w u rt 10 n w ^ -H
M n3 l-( ^ M - E 'i ft a £ E o
Vj t-i M in CJ ^
(0 O tT1 D^ U O U V4 O GJ M
4-1 -H O O -rl -H -H Gl ^ ^ C;
O,0rtrtrf-l.Q.O4-'.n CT1-*-1
01 O -H 'rt y y y -H 3 (u 4/


tr.
^ d C
\-H -H
rO ifl X\ fc; 6
E 0 U 6 E U
*
iO 3 en tr 3 3 3 3O



^
CN
m co
in CN in ac co i ^r
T in rsi in o r^ o fi :n o ro
onooortocoiomo
ro CM rt in
01 in
rt •
o






4J rt 4J 4-' C
!*-4 \ 1*-) l*-4 *H
O a E m '
UOt-l-l3D3k.4J
njrorawoooooo >*-i


•O
3
O
a
4-1 4J
•H -H
c t:

4-> n ^
rt r— ( 3 G QJ
(0 10 C O JC
E E -r^ 0* C
I* )H t, in u) QJ
4 * CJ QJ \ *v 0) ^4
ci £ r. 4J u t-i 4J x: j:
CJ t~* tH OJ O 01 Oi O *0
•*4 CI 01 QJ QJ C tw
f^ _f^ *4 4 U t *44 <4 J -ri
I M in ai
•H -^ O O O O O 01
OJ 0* 4-* 4-J '^1 '^ 'rj •••' •r' )H 4-1
O O Ij 14 3 3 P :' 3 D 0)
KtataoQOOUUO'Uiu
t;
2
tr
~ o
OJ »-i
4J -H
3 X
rt in
O V4 O
>, M CJ O
*0 _Q 4J O
T3 (0 O T~t
13 \ ^-' in I; *-^
C in 1-4 -H
O in (A V4 01 o 4J i/-
o 1-1 aj oj OJ 41 c i:
oicooJMin4-ii-(M'i}cjo
M 4-> 4-1 OJ fci Q 01 0! 6 U 4-'
"X 4-1 OJ J^ 13 E 4-1 -^
w in to tr, n< ^ 0) DJ C) ci U in
M M s -H m en o fi tn ^4 v-i -H 14
010104100^00*0^41
4J41-- 1 C l=rt^5rt C P P-J4J
•r-i -H -H G, 4J -H 3 H 4-* O1 O"1 O Q>



>-l
Ifl
o x, e
CJ E . E U

rtrtxuraxuxraS'S'xE
*
rt
4-
•H
CN in
rt f~- ^r Cucn T
in m m ^^ ^T o^ rj (N r-~ ^
r^ o i~^ in o *i* VD o o ^3* c^ 01
moorMOOinrtoOinoo
• CO O
r** •
C«T O
^^






0> 4-> t:
X CP^-l -'H fH
ra a a c c ja CP---I w LTtr0^
DI DI^, -iH -H rt £ £ Q« I/I tO 4-1 >i



"oT
D1
3
en
>i ~-

>i T3 -C
M \ O
3 tn c
o c -H

4-1 QJ rt OJ OJ — •
3 £ rt i-l 4J -C 4-1
C Vi <0 ns CI U v<
•H OJ **< Cn 3 01 C O
£, ^ O (J1 u-< -H ^
>x O c w in
ccu,uiinino XCIGJ —
OOOJQJQJ'OH T5^4l^
rtrtin^ilUrtOIC'fl'flin'O
aj 10 o r. c o -H -r-i o c>' w o 10
D> o>x; •( -H Oj E n O. in in 4J >


















































14
01
rt
a
•H
rt
3
E
10
4J
O
c
„
c
o
•H
in
t4
OJ
>
c
0
o

rt
*0
3
4J
O

«
735
                                       l!rU.S. GOVERHHENT PRINTING OFFICE:    1976-0-204-891

-------