EPA-450/4-90-016
EMISSION FACTOR
DOCUMENTATION FOR
AP-42 SECTION 2. l.i,
MUNICIPAL WASTE COMBUSTION
• By
Midwest Research Institute
•Cary.NC 27511
EPA Contract No. 68-02-3891
EPA Project Officer: David C. Misenheimer
Office Of Air Quality Planning And Standards
Office Of Air And Radiation
U. S. Environmental Protection Agency
Research Triangle Park, NC 27711
August 1990
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S£? A ^TJ^ by ** Offlce Of ^ Quality Planning And Standards, U. S. Environmental
S^ffS7' ""I, been aPP™*f°r Plication » receiv^ to» the contractor
n?tS5 C°ntentS- f^^y reflect *e views and policies of the Agency, neithe
of trade names or commercial products constitute endorsement or recommendation for use
EPA-450/4-90-016
u
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TABLE OF CONTENTS
Page
LIST OF TABLES
CHAPTER 1. "INTRODUCTION 1_1
CHAPTER 2. INDUSTRY DESCRIPTION ? ,
2.1 CHARACTERIZATION OF THE INDUSTRY!! ?"f
2.2 PROCESS DESCRIPTIONS. !!!!!!!!!!!!! 2-1
2.2.1 Mass-Burn Incinerators ....!!!!!!!!!' 2-1
2.2.2 Starved-Air Incinerators .!!!!**** 2-5
2.2.3 Refuse-Derived-Fuel Incinerators.!.!!!!.*!" 2-6
2.3 SUMMARY OF REPORTED EMISSIONS FROM MUNICIPAL
WASTE COMBUSTORS o 7
2.4 CONTROL TECHNOLOGY. !!!!!!!!!!!!!!!!! 2-7
CHAPTER 3. GENERAL EMISSION DATA REVIEW AND ANALYSIS PROCEDURES 3 1
3.1 LITERATURE SCREENING "*"... J-i
3.2 EMISSION DATA QUALITY RATING SYSTEM.!!! "* 3?
3.3 PARTICLE SIZE DETERMINATION., 3~\
3.4 PARTICLE SIZE DATA ANALYSIS METHODOLOGY..!!! 34
3.5- EMISSION FACTOR QUALITY RATING SYSTEM !!!!! 3.5
CHAPTER 4. POLLUTANT EMISSION FACTOR DEVELOPMENT.. 4-1"
4.1 PROCESS DESCRIPTIONS,: TEST PROTOCOL SUMMARIES
AND REVIEW OF DATA 4 x
4.1.1 Baltimore, 1985 Tests (Mass Burn!
Waterwal 1) .' 4 ±
4.1.2 Braintree, 1978 Test (Mass Burn,
WaterwalT). 4_2
4.1.3 Chicago Northwest, 1980 Tests (Mass'surii!*
Waterwall) 4 3
4.1.4. Hampton, 1981, 1982, 1983, 1984 Tests
(Mass Burn, Waterwall) 4.4
4.1.5 Tulsa, 1986 Test (Mass Burn,
Waterwall) • ' 4 6
4.1.6 Peekskill, 1985 (Mass Burn; Waterwal 1*)!!!! 4-7
4.1.7 Gallatin, 1983 Tests (Mass Burn,
Waterwall) 4 9
4.1.8 Kure, Japan, 1981 Test (Mass Burn,
Waterwall) 4 g
4.1.9 Munich, 1984 Tests (Mass Burn,
Waterwall) ; 4 10
4.1.10 Quebec, 1985-86 Pilot Scale Tests (Mass***
Burn, Waterwall) 4 i2
4.1.11 Malmo, 1983 Report (Mass Burn and
RDF-Fired Waterwall) 4_14
ii
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TABLE OF CONTENTS (continued)
4.1.12 Wurzburg, West Germany, 1985 Tests
(Mass-Burn, Waterwal1)
4.1.13 Marion County, 1986 Test (Mass Burn,
Waterwal1)
4.1.14 McKay Bay, 1986 Tests (Mass Burn,
Waterwal1)
4.1.15 North Andover, 1986 Test (Mass Burn,
• Waterwal1)
4.1.16 Saugus, 1975 Test (Mass Burn,
Waterwal1)
4.1.17 Umea, 1984 Test (Mass Burn, Waterwall)
4.1.18 Philadelphia, Northwest, 1985 Tests
(Mass Burn, Refractory) ,
4.1.19 Washington, D.C. 1976 Test (Mass Burn,
Refractory) ,
4.1.20 Mayport, 1980 Tests (Mass Burn,
Refractory) ,.
4.1.21 Alexandria, 1976 Test (Mass Burn,
Refractory)
4.1.22 Nicosia, East Chicago, 1976.Tests (Mass
Burn, Refractory)
.4.1.23 Tsushima, Japan, 1983 Test (Mass Burn,
Refractory) '.
4.1.24 Pittsfield, 1985-Test-Phase I (Mass Burn,
Refractory)
4.1.25 Cattaraugus County, 1984 Test (Starved
Air
4.1.26 Dyersburg, 1982 Tests (Starved Air)
4.1.27 North Little Rock, 1980 Tests (Starved
Air)
4.1.28 Prince Edward Island, 1985 Test (Starved
Air)
4.1.29 Tuscaloosa, 1985 Test (Starved Air).
4.1.-30 Barren County, -1985 Test (Starved Air)
4.1.31 Red Wing, 1986 Test (Starved Air)
4.1.32 Akron, 1981 Test (RDF Fired)...
4.1.33 Albany, 1984 Test (RDF Fired)..
4.1.34 Hamilton-Wentworth, Ontario, 1984 Tests
(RDF Fired)
-4.1.35 Niagara, 1985 test (RDF Fired). ,.
4.1.36 Wright Patterson Air Force Base, 1980 and
1982 Tests (RDF Fired) „
4.1.37 Supplementary Data
4-15
4-16
4-17
4-17
4-18
4-19
4-19
4-21
4-21
4-22
4-23
4-23
4-25
4-26
4-27
4-28
4-28
4-30
4-31
4-31
4-32
4-32
4-34
4-35
4-36
4-37
iii
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TABLE OF CONTENTS (continued)
Page
4.2 RESULTS OF DATA ANALYSIS ' 4_38
4.2.1 Total Particulate Emissions Data.*!."! 4 38
4.2.2 Particle Size Data.... "*" 4.33
4.2.3 Other Criteria Pollutant Emissions Data!!! 4-38
4.2.3.1 Volatile Organice Compounds 4-38
4.2.3.2 Lead .4_3g
4.2.3.3 Sulfur Dioxide, Oxides of
, „ A „ Nitrogen and Carbon Monoxide... 4-39
4.2.4 Noncriteria Pollutant Emissions Data .. 4.39
4.2.4.1 Acid Gases 4.39
4.2.4.2 Toxic Organics !!!!! 4.40
•4.2.4.3- Noncriteria Metals ** 4.45
4.3 PROTOCOL FOR DATA BASE.. !!!!!!! 4-41
4.3.1 Engineering Methodology !!!!!!!!! 4-41
4.3.2 Computer Programming Methodology !!!! 4.47
CHAPTER 5. SAMPLING AND ANALYSIS PROTOCOL 5_!
CHAPTERS. AP-42 SECTION 2.1: REFUSE INCINERATION 6_1
CHAPTER 7 DATA BASE 7 1
7.1 DISCUSSION OF PROCESs'AND'cONTROL'DEvicrfABLEs!!! 7~-l
7.1.1 Discussion of Process Design and
Operation Tables 7_1
7.1.2 Discussion of Control Device Design and*"*
Operating Condition Tables 7_1
7.2 DISCUSSION OF EMISSION TABLES !! 7.2
SUPPLEMENT A. SUMMARY OF SYMBOLS, ACRONYMS, ABBREVIATIONS, AND
SUPPLEMENT B. DATA TRANSFER * LOG" FORMS!."!!!!!!."!.".'!!!!!!;-
iv
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LIST OF TABLES
Page
TABLE 2-1. DISTRIBUTION OF MUNICIPAL WASTE COMBUSTION
FACILITIES BY STATE AND TYPE ........... . ? <>
TABLE 2-2. MATRIX SHOWING THE EFFECTIVENESS OF CONTROL ...........
TECHNOLOGIES ON VARIOUS POLLUTANTS. ..... 2 Q
TABLE 4-1. LIST OF CONVERSION FACTORS ............ .......... &£
TAmP M' n«SA!^ °ATA USED T° CALCULATE EMISSION*FACTORS*::: 4^45
lAdLt M~ o. DA I A r ILES. ................ A /\Q
TABLE 4-4. SUMMARY OF PROGRAMS ........ '..'.'.'.'. •"" ......... 4~4Q
TABLE 5-1. SAMPLING AND ANALYSIS METHODOLOGY SUMMARY—CRITERIA "*
POLLUTANTS, ACID GASES, AND ORGAN I CS ............... 5.5
JADLr S'?- SAMPLING AND ANALYSIS METHODOLOGY SUMMARY-METALS.... 5-8
TABLE 7-la.. MASS-BURN FACILITY STRUCTURAL DESIGN DATA.... 7 5
TABLE 7-lb. MASS-BURN FACILITY AIRFLOW DESIGN DATA... ....... 7 I
TABLE 7-2. MASS-BURN OPERATING DATA FOR MUNICIPAL WASTE ..........
COMBUSTOR FACILITIES ............ 7 7
TABLE 7-3a. STARVED-AIR FACILITY STRUCTURAL DESIGN *DATA." .*.*!! ...... 7-8
TABLE 7-3b.__. STARVED-AIR FACILITY AIRFLOW DESIGN DATA... ..... 70
TABLE 7-4. STARVED-AIR OPERATING DATA FOR MUNICIPAL WASTE ...... **
COMBUSTOR FACILITIES.... ........... 7 1n
-TABLE 7-5a. REFUSE DERIVED FUEL-FIRED FACILITY STRUCTURAL** .......
DESIGN DATA .................... 7 n
TABLE 7-5b. REFUSE DERIVED FUEL-FIRED • FACILITY* AIRFLOw'DEsiGN .....
DATA ................ ..... 71?"
TABLE 7-6. RD.F-FIRED OPERATING DATA FOR MUNIcipAL*WASTE .......... -
COMBUSTOR FACILITIES.... ............. 7 n
JAS,LE- 7"7* ELECTROSTATIC PRECIPITATOR DESIGN SPECIFICATIONS '.'."" 7-15
TAD,L1 ?"S- ELECTROSTATIC PRECIPITATOR OPERATING CONDITIONS ..... .*! 7-16
TABLE 7-9, DRY SCRUBBER/FABRIC. FILTER SYSTEM DESIGN
SPECIFICATIONS ................... 7 17
TABLE 7-10. DRY SCRUBBER/FABRIC FILTER SYSTEM OPERATING ...........
CONDITIONS ................. .-. 7 1R
?'}J- K5RIC FILTER OR SCRUBBER DESIGN SPEC I FI CATIONS .'.":.*::: 7-19
l~l2' FABRIC FILTER OR SCRUBBER OPERATING CONDITIONS ...... 7-20
Tpr ?•}!• iSAR.Y °F ARTICULATE EMISSIONS FROM MWC FACILITIES.. 7-22
TABLE 7-13a. PARTICLE SIZE DISTRIBUTION DATA FROM MUNICIPAL •
WASTE COMBUSTION FACILITIES .......... ' 7 ?4
TABLE 7-135. SUMMARY OF EMISSION FACTORS FOR VOLATILE ORGANIC ......
COMPOUNDS FROM MUNICIPAL WASTE COMBUSTION .......... 7-26
TABLE 7-14. SUMMARY OF CARBON MONOXIDE EMISSIONS FROM MWC
TABLP7-15. SUMMARY OF SULFUR'DIOXIDE'EMISSIONs'FROM'MWc"" ........ ?'2?
FACILITIES .......................................... 7_28
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LIST OF TABLES (continued)
TABLE 7-16.
TABLE 7-16a.
TABLE 7-17.
TABLE 7-18.
TABLE 7-19.
TABLE 7-20.
TABLE 7-21.
TABLE 7-22.
TABLE 7-23.
TABLE 7-23a.
.TABLE 7-24.
TABLE 7-25.
TABLE 7-26.
TABLE ,7-26a.
TABLE 7-27.
TABLE 7-28.
TABLE 7-29.
TABLE 7-30.
TABLE 7-31.
TABLE 7-32.
TABLE 7-33.
TABLE 7-34.
TABLE .7-34a..
TABLE 7-35.
TABLE 7-36.
TABLE 7-37.
SUMMARY OF OXIDES OF NITROGEN EMISSIONS FROM MWC
FACILITIES
SUMMARY OF CRITERIA POLLUTANT EMISSION FACTORS
FOR MUNICIPAL WASTE COMBUSTION
SUMMARY OF ARSENIC EMISSIONS FROM MWC FACILITIES
SUMMARY OF BERYLLIUM EMISSIONS FROM MWC FACILITIES...,
SUMMARY OF CADMIUM EMISSIONS FROM MWC FACILITIES
SUMMARY OF TOTAL CHROMIUM EMISSIONS FROM MWC
FACILITIES
SUMMARY OF LEAD EMISSIONS FROM MWC FACILITIES '.
SUMMARY OF MERCURY EMISSIONS FROM MWC FACILITIES
SUMMARY.OF NICKEL EMISSIONS FROM MWC FACILITIES
SUMMARY OF METALS EMISSION FACTORS FOR MUNICIPAL
WASTE COMBUSTION
SUMMARY OF HYDROGEN CHLORIDE EMISSIONS FROM MWC
FACILITIES
SUMMARY OF HYDROGEN FLUORIDE EMISSIONS FROM MWC
FACILITIES
SUMMARY OF SULFUR TRIOXIDE EMISSIONS FROM MWC
FACILITIES
SUMMARY OF ACID GASES EMISSION FACTORS FOR
MUNICIPAL WASTE COMBUSTION '
SUMMARY OF 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES .'
SUMMARY OF TOTAL TETRACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES
SUMMARY OF TOTAL PENTACHLORODIBENZO-P-DIOXIN
EMISSIONS. FROM MWC FACILITIES
SUMMARY OF TOTAL HEXACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES
SUMMARY OF TOTAL HEPTACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES
SUMMARY OF TOTAL OCTACHLORODIBENZO-P-DIOXIN EMISSIONS
FROM MWC FACILITIES
SUMMARY OF TETRA- THROUGH OCTACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES
SUMMARY OF TOTAL MEASURED CHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES
SUMMARY OF DIOXIN EMISSION FACTORS FOR MUNICIPAL
WASTE COMBUSTION ...
SUMMARY OF 2,3,7,8-SUBSTITUTED AND- TOTAL TETRACHLORO-
DIBENZO-P-DIOXIN EMISSIONS FROM MWC FACILITIES
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL PENTACHLORO-
DIBENZO-P-DIOXIN EMISSIONS FROM MWC FACILITIES
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEXACHLORO-
DIBENZO-P-DIOXIN EMISSIONS FROM MWC FACILITIES
Page
7-29
7-30
7-33
7-34
7-35
7-37
7-39
7-41
7-42
7-43
7-46
7-47
7-48
7-49
7-51
7-52
7-54
7-56
7-58
7-60
7-62
7-64
7-66
7-68
7-70
7-71
vi
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LIST OF TABLES (cbntinued)
TABLE 7-38.
TABLE 7-39.
TABLE 7-40.
TABLE 7-41.
TABLE 7-42.
TABLE 7-43.
TABLE 7-44.
TABLE 7-45.
TABLE 7-46..
TABLE 7-46a.
TABLE 7-47.
TABLE 7-48.
TABLE 7-49.
TABLE -7-50.
TABLE 7-51.
TABLE 7-52.
TABLE 7-53.
TABLE 7-54.
TABLE 7-55.
TABLE 7-55a.
TABLE 7-56.
TABLE 7-57.
TABLE 7-58.
Page
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEPTACHLORO-
DIBENZO-P-DIOXIN EMISSIONS FROM WMC FACILITIES.. 7-72
SUMMARY OF 2,3,7,8-TETRACHLORODIBENZOFURAN EMISSIONS* *'
FROM MWC FACILITIES 7 74
SUMMARY OF TOTAL TETRACHLORODIBENZOFURAN EMissioNS*'**
FROM MWC FACILITIES 7 75
SUMMARY OF TOTAL PENTACHLORODIBENZOFURAN'EMISSIONS" "
FROM MWC FACILITIES 7 77
SUMMARY OF TOTAL HEXACHLORODIBENZOFURAN EMISSIONS
FROM MWC FACILITIES 7 7q
SUMMARY OF TOTAL HEPTACHLORODIBENZOFURAN EMissioNs"**
FROM MWC FACILITIES , 7 81
SUMMARY OF TOTAL OCTACHLORODIBENZOFURAN EMISSIONS
FROM MWC FACILITIES • 7 83
SUMMARY OF TETRA- THROUGH OCTACHLORODIBENZOFURAN
EMISSIONS FROM MWC FACILITIES 7 85
SUMMARY OF TOTAL MEASURED CHLORODIBENZOFURAN
EMISSIONS FROM MWC FACILITIES 7 87
SUMMARY OF FURAN EMISSION FACTORS FOR MUNICIPAL
WASTE COMBUSTION 7 89
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL TETRACHLORO-'
DIBENZOFURAN EMISSIONS FROM MWC FACILITIES. 7 91
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL PENTACHLORO"
DIBENZOFURAN EMISSIONS FROM MWC FACILITIES.. 7 92
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEXACHLORO-"
DIBENZOFURAN EMISSIONS FROM MWC FACILITIES.... . 7-93
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEPTACHLORO-*
DIBENZOFURAN EMISSIONS FROM WMC FACILITIES... 7-94
SUMMARY OF POLYCHLORINATED BIPHENYLS EMISSIONS FROM*"
MWC FACILITIES 7 qfi
SUMMARY OF FORMALDEHYDE EMISSIONS FROM'MWC
FACILITIES 7 07
SUMMARY OF BENZO-A-PYRENE EMISSIONS FROM*MWC
FACILITIES 7 98
SUMMARY OF TOTAL MEASURED CHLORINATED' BENZENE
EMISSIONS FROM MWC FACILITIES....... 7-99
SUMMARY OF TOTAL MEASURED'CHLORINATED PHENOL
EMISSIONS FROM MWC FACILITIES 7 inn
SUMMARY'OF OTHER ORGANIC POLLUTANTS FOR MUNICIPAL
WASTE COMBUSTION....... '- 7 101
SUMMARY OF SUPPLEMENTARY CHLORODIBENZO-plDIOXlfi"'
EMISSIONS FROM MWC FACILITIES 7 in3
SUMMARY OF SUPPLEMENTARY CHLORODIBENZOFURAN EMISSIONS*
FROM MWC FACILITIES 7 i04
SUMMARY OF SUPPLEMENTARY METALS EMISSIONS*FR6M*MWc"**
FACILITIES , 7-105
vii
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LIST OF TABLES (continued)'
Page
TABLE 7-59a. MASS-BURN FACILITY STRUCTURAL DESIGN DATA 7-107
TABLE 7-59b. MASS-BURN FACILITY AIRFLOW DESIGN DATA 7-108
TABLE 7-60. MASS-BURN OPERATING DATA FOR MUNICIPAL WASTE
COMBUSTOR FACILITIES 7-109
TABLE 7-61a. STARVED-AIR FACILITY STRUCTURAL DESIGN DATA 7-110
TABLE 7-61b. STARVED-AIR FACILITY AIRFLOW DESIGN DATA 7-111
TABLE 7-62. STARVED-AIR OPERATING DATA FOR MWC FACILITIES 7-112
TABLE 7-63a. REFUSE DERIVED FUEL-FIRED FACILITY STRUCTURAL
DESIGN DATA ; 7.113
TABLE 7-63b. REFUSE DERIVED FUEL-FIRED FACILITY AIRFLOW DESIGN
DATA 7-114
TABLE 7-64. RDF-FIRED OPERATING DATA FOR MWC FACILITIES 7-115
TABLE 7-65. ELECTROSTATIC PRECIPITATOR DESIGN SPECIFICATIONS 7-117
TABLE 7-66. ELECTROSTATIC PRECIPITATOR OPERATING CONDITIONS. 7-118
TABLE 7-67. DRY SCRUBBER/FABRIC FILTER SYSTEM DESIGN
SPECIFICATIONS * 7_ng
TABLE 7-68. DRY SCRUBBER/FABRIC FILTER SYSTEM OPERATING
CONDITIONS ' 7_120
TABLE 7-69. FABRIC FILTER OR SCRUBBER DESIGN SPECIFICATIONS 7-121
TABLE 7-70. FABRIC FILTER OR SCRUBBER OPERATING CONDITIONS 7-122
TABLE 7-71. SUMMARY OF PARTICULATE EMISSIONS FROM MWC FACILITIES.. 7-124
TABLE 7-71a. PARTICLE SIZE DISTRIBUTION DATA FROM MUNICIPAL
WASTE COMBUSTION FACILITIES 7-126
TABLE 7-71b. SUMMARY OF EMISSION FACTORS FOR VOLATILE ORGANIC
COMPOUNDS FROM MUNICIPAL WASTE COMBUSTION 7-128
TABLE 7^72. SUMMARY OF CARBON MONOXIDE EMISSIONS FROM MWC
FACILITIES 7_129
TABLE 7-73. SUMMARY OF SULFUR DIOXIDE EMISSIONS FROM MWC
FACILITIES 7-130
TABLE 7-74. SUMMARY OF OXIDES OF NITROGEN EMISSIONS FROM
MWC FACILITIES .- 7.131
TABLE 7-74a. SUMMARY OF CRITERIA POLLUTANT EMISSION FACTORS
FOR MUNICIPAL WASTE COMBUSTION 7-132
'TABLE 7-75. SUMMARY OF ARSENIC EMISSIONS FROM MWC FACILITIES 7-135
TABLE 7-76. SUMMARY OF BERYLLIUM EMISSIONS FROM MWC FACILITIES.... 7-137
TABLE 7-77. SUMMARY OF CADMIUM EMISSIONS FROM MWC FACILITIES 7-138
TABLE 7-78. SUMMARY OF TOTAL CHROMIUM EMISSIONS FROM MWC
FACILITIES 7-140
TABLE 7-79. SUMMARY OF LEAD EMISSIONS FROM MWC FACILITIES ' 7-142
TABLE 7-80. SUMMARY OF MERCURY EMISSIONS FROM .MWC FACILITIES 7-144
TABLE 7-81. SUMMARY OF NICKEL EMISSIONS FROM MWC FACILITIES........ 7-145
TABLE 7-81a. SUMMARY OF METALS EMISSION FACTORS FOR MUNICIPAL
WASTE COMBUSTION 7-146
TABLE 7-82. SUMMARY OF HYDROGEN CHLORIDE EMISSIONS FROM MWC
FACILITIES 7-149
viil
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LIST OF TABLES (continued)
TABLE 7-83.
TABLE 7-84.
TABLE 7-84a.
TABLE 7-85.
TABLE 7-86.
TABLE 7-87.
TABLE 7-88.
TABLE 7-89.
TABLE 7-90.
TABLE 7-91.
TABLE 7-92.
TABLE 7-92a.
TABLE 7-93.
TABLE 7-94.
TABLE 7-95.
TABLE 7-96.
TABLE 7-97.
TABLE 7-98.
TABLE 7-99.
TABLE 7-100.
TABLE 7-101.
TABLE 7-102.
TABLE 7-103.
SUMMARY OF HYDROGEN FLUORIDE EMISSIONS FROM MWC
SUMMARY OF SULFUR'fRioxiDE'EMissioNs'FROM'MWC 7"15°
FACILITIES 7 ,-,
SUMMARY OF ACID GASES EMISSION FACTORS*FOR
MUNICIPAL WASTE COMBUSTION 7 i
SUMMARY OF 2,3,7,8-TETRACHLORODIBENZO-P-DioXIN
EMISSIONS FROM MWC FACILITIES 7 i
SUMMARY OF TOTAL TETRACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES 7 i«
SUMMARY OF TOTAL PENTACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES 7 ic7
SUMMARY OF TOTAL HEXACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES 7 ICQ
SUMMARY OF TOTAL HEPTACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES 7 ifii
SUMMARY OF TOTAL OCTACHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES. 7 i63
SUMMARY OF TETRA- THROUGH OCTACHLORODIBENZO-P-DtOJaN**
- EMISSIONS FROM MWC FACILITIES 7 i«
SUMMARY OF TOTAL MEASURED CHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES 7 1fi7
SUMMARY OF DIOXIN EMISSION FACTORS FOR MUNICIPAL
WASTE COMBUSTION 7 I6q
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL'TETRACHLORO-*
. DIBENZO-P-DIOXIN EMISSIONS FROM MWC FACILITIES. 7-171
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL PENTACHLORo"
DIBENZO-P-DIOXIN EMISSIONS- FROM MWC FACILITIES 7-172
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEXACHLORO-"
DIBENZO-P-DIOXIN EMISSIONS FROM MWC FACILITIES 7-173
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEPTACHLORO-*
DIBENZO-P-DIOXIN EMISSIONS FROM WMC FACILITIES... 7-174
SUMMARY OF 2,3,7,8-TETRACHLORODIBENZOFURAN EMISSIONS *
FROM MWC FACILITIES 7 17fi
uiLjf i\ n\/ f\ F* T*rtT ft i ^^»™^»* •MIII^_^__ _ ***•*•*•••••••• /^i/D
... 7-177
SUMMARY OF TOTAL HEXACHLORODiBENZOFURANlMISsioNS ?"179
FROM MWC FACILITIES... .- -7181
SUMMARY OF TOTAL HEPTACHLORODIBENZOFURAN'EMissioNS****
FROM MWC FACILITIES 7 100
SUMMARY OF TOTAL OCTACHLORODIBENZOFURAN"EMISSIONS*""
FROM MWC FACILITIES 7 18c
SUMMARY OF TETRA- THROUGH OCTACHLORODIBENZOFURAN*"
EMISSIONS FROM MWC FACILITIES 7 187
IX
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LIST OF TABLES (continued)
TABLE 7-104.
TABLE 7-104a.
TABLE 7-105.
TABLE 7-106.
TABLE 7-107.
TABLE 7-108.
TABLE 7-109.
TABLE 7-110.
TABLE 7-111.
TABLE 7-112.
TABLE 7-113.
TABLE 7-113a.
TABLE 7-114.
TABLE 7-115.
TABLE 7-116.
Page
SUMMARY OF TOTAL MEASURED CHLORODIBENZOFURAN
EMISSIONS FROM MWC FACILITIES... 7-189
SUMMARY OF FURAN .EMISSION FACTORS FOR MUNICIPAL
WASTE COMBUSTION 7.191
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL TETRACHLORO-
DIBENZOFURAN EMISSIONS FROM MWC FACILITIES 7-193
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL PEMTACHLORO-
DIBENZOFURAN EMISSIONS FROM MWC FACILITIES 7-194
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEXACHLORO-
DIBENZOFURAN EMISSIONS FROM MWC FACILITIES 7-195
SUMMARY OF 2,3,7,8-SUBSTITUTED AND TOTAL HEPTACHLORO-
DIBENZOFURAN EMISSIONS FROM MWC FACILITIES 7-196
SUMMARY OF POLYCHLORINATED BIPHENYLS EMISSIONS FROM
MWC FACILITIES 7.193
SUMMARY OF FORMALDEHYDE EMISSIONS FROM MWC
FACILITIES. 7-199
SUMMARY OF BENZO-A-PYRENE EMISSIONS FROM MWC
FACILITIES 7-200
•SUMMARY OF TOTAL MEASURED' CHLORINATED BENZENE
EMISSIONS FROM MWC FACILITIES 7-201
SUMMARY OF TOTAL MEASURED CHLORINATED PHENOL
EMISSIONS FROM MWC FACILITIES 7-202
SUMMARY OF OTHER ORGANIC POLLUTANTS FOR MUNICIPAL
WASTE COMBUSTION 7-203
SUMMARY OF SUPPLEMENTARY CHLORODIBENZO-P-DIOXIN
EMISSIONS FROM MWC FACILITIES 7-205
SUMMARY OF SUPPLEMENTARY CHLORODIBENZOFURAN
EMISSIONS FROM MWC FACILITIES 7-206
SUMMARY OF SUPPLEMENTARY METALS EMISSIONS FROM
MWC FACILITIES 7-207
-------
1. INTRODUCTION
The document "Compilation of Air Pollutant Emission Factors" (AP-42)
has been published by the U. S. Environmental Protection Agency (EPA)
since 1972. Supplements to AP-42 have been routinely published to add new
emission source categories and to update existing emission factors for
criteria pollutants. AP-42 is routinely updated by EPA to respond to new
emission factor needs of EPA, State, and local air pollution control
programs and industry.
An emission factor relates the quantity (weight) of pollutants
emitted to a unit of activity of the source. The uses for the emission
factors reported in AP-42 include: . . "
1. Estimates of area-wide emissions;
2. Emission estimates for a specific facility; and
3. Evaluation of emissions relative to ambient air quality.
The purpose of this report is to provide background information from
over 50 .test-reports-to support revision of criteria pollutant emission
factors for municipal incinerators, and to develop emissions factors for
noncriteria pollutants from municipal incinerators.
Including the introduction-(chapter 1) this report contains seven
chapters. Chapter 2 gives a description of the municipal waste combustion
industry. It includes a characterization of the industry, an"overview of
the different process types, a description of emissions, and a description
of the technology used to control emissions resulting from municipal waste
incineration". Chapter 3 is a review of emission data collection and
analysis procedures. It describes the screening of emission data reports
and the quality rating system for both emission data and emission
factors. It also describes particle size determination and particle size
data analysis methodology.. Chapter 4 details pollutant emission factor
1-1
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development. It includes the process descriptions, test protocol
summaries, and review of specific data sets, the results of data analysis,
and the data base protocol. Chapter 5 describes the sampling and analysis
protocol used to gather the data. Chapter 6 presents the AP-42 Section
2.1. Chapter 7 presents the emission data base. Each section of the data'
base is summarized by presenting the number of data points, the data
ratings, the range and average of emission factors, the emission factor
rating, and the reference number of the report which contained the
emission data. Supplement A contains a summary of symbols, acronyms,
abbreviations, and units. Supplement-B is an example of a data transfer
log form.
1-2
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2. INDUSTRY DESCRIPTION
Incineration is. a means of disposing municipal solid waste
discarded from residential, commercial and industrial establishments.
Incineration has the advantages of lowering disposal costs by reducing
solid mass approximately 90 percent and the potential for recovering
energy through combustion of waste products. Disadvantages include the
problems of disposal of the remaining, but reduced, waste and the
potential for air pollution.
2.1 CHARACTERIZATION OF THE INDUSTRY '
There are about 120 municipal waste incinerators currently-
operating in 34 States. The three major, types of municipal waste
incinerators are mass-burn, refuse-derived fuel, and starved-air, which
account for approximately 70, 20, and 10 percent of all municipal
incinerators, respectively. The majority of these facilities are
located on the East Coast and in the Midwest. New York has 13 municipal
waste incineration facilities, the most of any State. New Hampshire has
the second highest total with 12, followed by Virginia with 8 and
Arkansas with 7 facilities. Table 2-1 shows the distribution of
municipal waste incineration facility types by State.
Approximately 15Q mi lion tons of municipal waste are generated in
U.S. each year. It is estimated that 5 to 10 percent of this municipal.
waste is incinerated.
2.2 PROCESS DESCRIPTIONS .'
2.2.1 Mass-Burn Incinerators
Mass-burn excess-air combustion is the predominant method of
burning municipal solid waste (MSW). The term mass burn means that the
MSW is combusted without any preprocessing other than the removal of
bulky items (stoves, refrigerators, etc.).
2-1
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TABLE 2-1. DISTRIBUTION OF MUNICIPAL WASTE COMBUSTION FACILITIES
BY STATE AND TYPE
Location
Sitka, Alaska
Tuscaloosa, Ala.
Hope, Ark.
Batesville, Ark.
Blytheville, Ark.
Osceola, Ark.
North Little Rock, Ark.
Stuttgart, Ark.
Hot Springs, Ark.
New Canaan, Conn.
Stamford 1 , Conn .
Stamford 1 1 , Conn.
Windham, Conn.
Dade Co., Fla.
Pinel las Co. , Fla.
Pinellas Co. (Expansion), Fla.
Tampa (McKay Bay), Fla.
Mayport Naval Station, Fla.
Lakeland, Fla.
Honol ul u, Hawai i
Ames, Iowa
•Cassia County (Bur ley), Idaho
Chicago (NW) , III.
East Chicago, Ind.
Lou i sv i 1 1 e , Ky .
Simpson Co. (Franklin), Ky.
Shreveport, La.
Haverhi 1 I/Lawrence, Mass.
Fal 1 River, Mass.
Framingham, Mass.
North Andover, Mass.
Saugus, Mass.
Pittsfield, Mass.
Baltimore (Pulaski), Md.
Baltimore (RESCO) , Md.
Harpswel 1 , Maine
Auburn, Maine
Clinton (Grosse Pointe), Mich.
S.E. Oakland Co., Mich.
Duluth, Minn.'
Savage, Minn.
Purham, Minn.
Red Wing, Minn.
Collegeville (St. Johns), Minn.
St. Louis (1 and 2), Mo.
Fort Leonard Wood, Mo.
Pascagoula, Miss.
Livingston, Mont.
Wilmington, N.C.
Wrightsville, N.C.
Lltchfield, N.H. :
Durham, N.H.
Wilton, N.H.
Auburn, N.H.
Pittsfield, N.H.
Meredith, N.H.
Combustor
type3
MI/SA
MI/SA
MI/SA .
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MB/OF
MB/OF
MB/OF
MI/SA
RDF
MB/OF
MB/OF
MB/OF
MB/OF
RDF/C
MB/OF
RDF/C
MI/SA
MB/OF
MB/OF
' MB/OF
MI/SA
MB/OF
RDF
MB/OF
MB/OF
MB/OF
MB/OF
MB/OF
MB/OF
MB/OF
MI/SA
MI/SA
MB/OF
MB/OF
RDF-
MI/SA
MI/SA -
MI/SA
MI/SA
MB/OF
MI/SA
MI/SA ,
MI/SA
MB/OF
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
Heat
recovery
Yes
Yes
No
Yes
No
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
No
No
Yes
No
Yes
No
No
Yes
Yes
No
No
Yes
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
No
No. of
combustors
2
4
3
1
2
2
4
3
8
1
1
1
3
4
2
i
4
1
3
1
2
2
4
2
4
2
. 1 •
3
2
2
2
2
3
4
3
1
4
2
2
2
1
2
2
1
4
3
2
2
2
2
.1
3
1 '
• 1
r
2
Total
plant
capacity,
tons/d
25
36'0
38
50
70
50
100
65
100
108
200
360
108
3,000
2,000
1,150
1,000
50
300
600
200
50
1,600
450
1,000
77
200
1,300
600
500
1,500
1,500
240
1,200
2,250
14
200
600
600
400
60
80
72
50
800
75
150
75
200
50
22
108
30
5
48
31
Type of
control (s)D
ESP
ESP
None
None
None
None
None
None
None
VWS
ESP
ESP
FF
ESP
ESP
ESP
ESP
C
ESP
ESP
ESP
None
ESP
VWS
WS
None
VWS
ESP
WS
DS/FF
ESP
ESP
EGB •
ESP
ESP
None
FF
ESP
WS
VWS
ESP
ESP
ESP
WS
WS
None
ESP
None
ESP
None
None
C
None
None
None
None
2-2
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TABLE 2-1. (continued)
Location
Groveton, N.H.
Portsmouth, N.H.
Nottingham, N.H.
Candia, N.H.
Wolfeboro, N.H.
Canterbury, N.H.
Albany, N.Y.
Niagara Fal ls> N.Y.
Brooklyn (SWK N.Y.
Glen Cove, N;Y.
Westchester Co. (Peekski II),
N.Y.
Brooklyn (N. Henry St.), N.Y.
Huntington, N.Y.
i New York (Betts Avenue), N.Y.
- Dutchess County, N.Y.
Skaneateless, N.Y.
Oneida Co. (Rome), N.Y.
Cattaraugus Co. (Cuba), N.Y.
Oswego County l(Volney) , N.Y.
Akron, Ohio1 |
Columbus, Ohi'o
Wright Patterson AFB, Ohio
N.- Dayton, Ohio
S. Dayton, Ohi:o'
Eucl id, Ohio
Tulsa, Ok la.
Miami, Okla.
Marion .County, Oreg.
Philadelphia (Northwest Unit)
Pa.
Phi ladelphia (E. Central
Unit), Fa.
Harrisburgj Pa.
Johnsonvi lie, S.C.
Hampton, S.C.
Nashvi lie, Tenn.
Nashville (Expansion), Tenn.
Ga Matin, Tenn.
DyersburgJ Tenn.
Lewisburgj Tenn.
Cleburne,) Tex.
Carthage City, Tex.
Gatesvi 1 le, TexJ . '
Center, Tex.
Palestine, Tex. .
Waxahachie, Tex. i
Ogden, Utah
Alexandria, Va.
Portsmouth, Va.
Norfolk (Navy Station), Va.
Hampton, 'Va. '
Harrisonburg, Va.
Gal ax, Va.
Salem, Va.
Newport News (Ft. Eustis), Va.
Bel 1 ingham, Wash.
Combustor
type3
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
RDF
RDF
MB/OF
MB/OF
MB/OF
MB/OF
MB/OF
MB/OF
MB/RC
MI/SA
MI/SA
MI/SA
MI/SA
RDF
RDF
RDF
MB/OF ,
MB/OF '
MB/OF
MB/OF
MI/SA .
MB/OF
. MB/OF
MB/OF
MB/OF
MI/SA,
MI/SA
MB/OF
MB/OF
MB/RC
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA
MI/SA-
MB/OF
MB/OF
MB/OF
MB/OF
MB/OF
MB/OF
MI/SA
MI/SA
MI/EA
Heat
recovery
Yes
Yes
No
. No
No
No
Yes
Yes
No
Yes
Yes
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
No
No'
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes .
Yes
Yes •
Yes
Yes
No
Yes
Yes
Jes
Yes
Yes
Yes
Yes
Yes
No. of
combustors
1
4
1
1
2
1
2
2
3
2
3
1
3
4
1
1
4
3
4
3
6
1
2
2
NA
2
3
2
2
2
2
1
3
2
1
2
1
1
3
1
1 •
1
2
3
2
2
2
' 2
2
1
4
1
1
Bl' _-— — •— .— .-—
Total
plant
capacity
tons/d
24
200
8
15
16
10
600
1,200
750
250
2,250
1,000
450
1,000
400
13
200
120
200
1,000
2,000
200
600
600
200
750
108.
550
750
750
720
50
270
720
400
200
100
60
115
36
20
36
28
50
450
300
160
360
250
100 -
56
100
35
100
, Type of
control (s)D
None
FF
None
None
• None
None
ESP
ESP
ESP
ESP
ESP .
ESP
WS
ESP
FF .
None
None
None
ESP
ESP
ESP
ESP
ESP
ESP
ESP
ESP
None
DS/FF
ESP
ESP
ESP
None
ESP
ESP
ESP
C/FF
None
WS
ESP
None
None
None
WS
WS
ESP
WS
ESP
ESP
ESP
ESP
FF
None
None
None
(continued)
2-3
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TABLE 2-1. (continued)
Location
Bel I ingham, Wash.
Sheboygan, Wis.
Waukesha, Wis.
Barren County, Wis.
Madison, Wis.
Combustor
type3
MI/SA
MB/OF
. MB/OF
MI/SA
ROF/C
Heat
recovery
Yes
No
Yes
No
Yes
No. of
combustors
2
2
2
2
2
Total
plant
capacity,
tons/d
100
240
175
100
400
Type
control
None
WS
ESP
ESP
ESP/C
of
(s)b
MI/SA = modular combustor with starved air
MI/EA = modular combustor with excess air (vicon)
RDF = refuse derivedifuel fired in dedicated boiler
RDF/C = refuse derived'fuel/coal coficing
MB/OF = mass burn with overfeed stoker
. MB/RC = mass burn in rotary combustor.
Types of controls:
C = cyclone
ESP = electrostatic precipitator
WS = wet scrubber
DS = dry scrubber
VMS = venturi wet scrubber
FF = fabric f.i Iter |
EGB = .electrostatic gravel] bed
NA = Not avaliable. ,
I I
2-4
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In a typical mass-burn combustor, an overhead crane mixes the MSW
in the storage pit and then transfers the MSW into the feed chute. A
hydraulic ram system located under the feed chute charges the waste onto
• the grate system. As the waste is moved through the combustion chamber
by the grate system, it passes through .the following zones: (a) a dry-
out zone where the moisture in the waste is evaporated; (b) a combustion
zone; and (c) a burn-out zone where final combustion occurs. The
resulting ash falls into the flooded ash pit and is removed and sent to
a landfill. In some cases, ferrous metals are removed from the ash by
magnetic separation. The capacity of individual combustors can range
from 50 to 1,000 tons of waste per day, and usually 2 or 3 units are at
a site. .
Several types of grate systems are used with mass-burn
combustors. All of these grate designs are similar in that they are
designed to move the waste through the combustor and promote complete
combustion. The grates are either traveling, rocking, reciprocating,
roller, or rotary designs. Air for the combustion process is supplied
by underfire air, which is introduced into one or more compartments, or
plenums, under the stoker grates and by overfire air, which is.
introduced by nozzles or openings located above the grates.
All new mass-burn combustors are expected to have a waterwall
furnace to recover energy in the form of steam. Many older facilities
have refractory-lined walls rather than waterwalls and do not recover
any.usable energy. Large mass-burn units are usually field erected.
The air pollution control systems for these combustors are
electrostatic precipitators (ESP's), dry fabric filters, dry scrubbing
systems (with either ESP's or fabric filters), and wet scrubbers.
Although most existing facilities are .controlled by ESP's, all new
facilities are expected to be controlled by acid gas scrubbers and a
high efficiency pariticulate matter collector.
2.2.2 Starved-Air Incinerators
A typical starved-air combustor is designed for two-stage
combustion with separate primary and secondary chambers. The'primary
chamber.is fed MSW by a hopper and ram-feed system. Air is supplied to
the primary chamber at substoichiometric levels (thus the name starved-
2-5
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air). This practice results in a lower air velocity and temperature
(500°C to 700°C) in the primary combustion chamber than in the secondary
chamber. The lower velocities minimize entrainment of fuel particles
and ash in the exhaust gas stream. Rams in the primary chamber are used
to push residue and break up clinker. Exhaust gases including the
incomplete combustion products, which are primarily carbon monoxide and
low-molecular-weight hydrocarbons, pass into the secondary combustion
chamber. " -
In the secondary combustion chamber, more air is added, and
combustion is completed. The resulting hot gases (1000°C to 1200°C) can
be passed through a heat recovery boiler for energy recovery. Although
several existing starved-air combustors do not have energy recovery
systems, all new starved-air combustors are expected to have energy
recovery systems.' Ashes are quenched and removed for disposal. Most
existing starved-air municipal waste combustors operate without add-on
emission control systems although some combustors do have ESP's or
fabric filters for particulate matter control.. Starved-air combustors
generally are marketed as packaged units that can be installed
relatively quickly.
2.2.3 Refuse-Derived-Fuel Incinerators
One'alternative to direct combustion of MSW is to process the waste
to produce refuse-derived fuel (RDF). The purpose of processing the
municipal solid waste is to remove the uncombustifales, recover recylable.
materials, and produce a more homogeneous fuel. The four main types of
RDF are fluff, densified, powdered, and wet-pulped. Fluff RDF fs
prepared by mechanical shredding of MSW followed by air classification,
magnetic separation, or trommel ing to reduce the noncombustible content
of the waste'stream. If multiple shredding stages are used, fine RDF is
produced. Densified RDF is produced by extruding fine RDF in a pellet
.mill. The production of powdered RDF requires mechanical, thermal, and
chemical processing of shredded MSW that has undergone screening and
magnetic separation. In the.wet pulping process, the pulper is fed MSW
that has been sluiced with water. Noncombustibles are removed in a
liquid cyclone. The wet-pulped RDF is then mechanically dewatered to a
moisture content of 50 percent.
2-6
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The designs of dedicated combustors used to burn RDF are similar to
those used for coal combustion. Refuse-derived fuel units have their
own fuel handling, combustion air supply, and grate designs. Typical
configurations include suspension, stoker, and fluidized-bed designs.
These boilers may use up to 1,000 tons of RDF per day. The ash is
quenched and removed to a landfill. Although most existing RDF units
use ESP's for particulate matter control, all new RDF units are expected
to be controlled by acid'gas scrubbers and a high .efficiency particulate
matter collector. |
2.3 SUMMARY OF REPORTED EMISSIONS FROM MUNICIPAL WASTE COMBUSTORS
Municipal waste combustors have the potential to emit significant
quantities of pollutants to the atmosphere.' One of these pollutants -is
particulate matter, which is emitted because of the turbulent movement
and entrapment of the combustion gases. Particulate patter is also
Pr.oduced when metals that are volatilized in the combustion zone
condense in the exhaust-gas stream. The particle size .distribution and
concentration of the particulate emissions leaving the1 incinerator vary
widely, depending on the composition of the refuse being burned and the
type and operation of the incineration process. (
Incomplete combustion of refuse resulting from improper incinerator
design or operating conditions can result in emissipns of intermediate
products (e.g., volatile organic compounds and carbon monoxide). Other
emissions include sulfur dioxide, nitrogen oxides, metals, acid gases,
and organic compounds. ' i
A data base (Chapter 7) has been developed on,t,he emissions of
criteria pollutants, acid gases, metals, and organic compounds from1
MWC's. . '
2.4 CONTROL TECHNOLOGY : ' ! .
A wide variety of control technologies is used to control refuse
incinerator emissions. Currently, the most widely, used are
electrostatic precipitators, fabric filters, wet scrubbers, and dry -
scrubbers. Many control systems use a combination of these four types
of control technologies.
Electrostatic precipitators are used on 75 percent of existing
municipal waste incinerators to control particulate matter emissions.
2-7
-------
The efficiency of a typical electrostatic precipitator can range from 90
to 99 percent depending on particle size distribution, gas flow rate,
collection plate area, applied voltage and current levels and
resistivity.
Fabric filters (FF) have not generally been applied in the past on
existing units. However, FF's are expected to be commonly used behind
acid gas scrubbers as sorbent collectors and secondary reactors for dry
and semi-dry scrubbers. With upstream scrubbing of acid gases and
sorbent accumulation on fabric materials, fabric filters becomeja viable
choice for fine particulate control as well as for control of other
pollutants.
Many types of wet scrubbers are used for removing acid gases—spray
towers, centrifugal- scrubbers, and venturi scrubbers. Packed-bed and
tray scrubbers are less commonly used. In wet scrubbers, the exhaust
gas enters the absorber where it is contacted with an alkaline l ''
solution. The alkaline solution reacts with the acid gases to form
salts, which are generally insoluble and may be removed by sequential
clarifying, thickening, and vacuum filtering. The dewatered salts or
sludges are then landfilled. i
Dry scrubbing .involves the injection of a slurry or water and a
solid powder such as lime-or sodium bicarbonate into the flue gas where
acid gas removal occurs in the duct and continues in the dust collector
as sorbent and ash particles and condensed volatile matter are
captured. In a semi-dry process, also known as spray drying
-------
TABLE 2-2. MATRIX SHOWING THE EFFECTIVENESS OF CONTROL TECHNOLOGIES
ON VARIOUS POLLUTANTS
Pollutant
ESP
Dry scrub-
ber/ESP
ESP/wet
scrubber
Dry scrubber/
fabric filter
Criteria pollutant
Particulate matter
Nitrogen oxides
Sulfur dioxide
•Carbon'monoxide
Acid gases
Hydrogen chloride
Hydorgen fluoride
Sulfates
Metals
i
Arsenic
Beryllium
Cadmium
Chromium
Lead
Mercury
Nickel
Organics .
Polychlorinated
dibenzo-p.-dioxins
• Polychlorinated
dibenzofurans1 i
Polychlorinated
biphenyls
Formaldehyde
Chlorinated benzenes
Chlorinated phenols
Benzo-a-pyrene.
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
X
2-9
-------
-------
2.5 REFERENCES FOR CHAPTER 2
1. Draft Sampling and Analytical Protocols for PCDO's and PCDF's in
Stack Emissions. American Society of Mechanical Engineers
December 1984.
2. Biosjoly, Lucie. Measurement of Emissions of Polychlorinated
Dibenzo-p-Dioxin (PCDD) and of Polychlorinated Dibenzofuran (PCDF)
from the Des Carriers Incinerator in Montreal. Environment Canada
Report EPS 5/UP/RQ1. December 1984.
3. Benfenati, R., et al. Studies on the Tetrachlorodibenzo-p-Dioxins
(TCDD) and Tetrachlorodibenzofurans (TCDF) Emitted From an Urban
Incinerator. Chemosphere. Volume 15, No. 5. 1986. pp. 557-561.
4.
5.
6.
7.
8'
9.
Radian Corporation. Appendix A: Characterization of the Municipal
Waste Combustion Industry. Prepared for the U. S. Environmental
Protection Agency, Research Triangle Park, North Carolina. 1986.
64 pp.
Air Pollutant Emission Factors. Final Report. Research
•Incorporated, Reston, Virginia. Prepared for National Air
Pollution Control Administration, Durham, North Carolina, under
contract No. CPA-22-69-119. . .
Midwest Research Institute. Municipal Waste Combustion Study-
Emission Data Base for Municipal Waste Combustors, EPA/53-
SW-87-0216.
U. S. Environmental Protection Agency, Research Triangle Park.
North. Carolina.. June 1987.
C. B. Sedman and T. G. Brna, Municipal Waste Combustion Study-
Flue Gas Cleaning Technology, EPA/530-SW-87-021d. U. S.
Environmental Protection Agency, Research Triangle Park, North
Carolina. June 1987.
Air Pollution Engineering Manual. U.S. 'DHEW, PHS, National Center
for Air Pollution Control, Cincinnati, Ohio. Publication
No. 999-AP-40,. 1967. p. 413-503.
Unpublished data on incinerator testing. U.S. DHEW, PHS EHS
National Air Pollution. Control Administration, Durham, North '
Carolina. 1970.
2-10
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-------
3. GENERAL DATA REVIEW AND ANALYSIS PROCEDURES
3.1 LITERATURE SCREENING
To reduce the large amount of literature collected to a final group
of references pertinent to this report, the following general criteria
were used:
1. Emissions data must be from a primary reference:
a. Source testing must be from a referenced study that does not
reiterate information from previous studies. ' •
b. The document must constitute the original source of test data.
For example, a technical paper was not" included if the original study was
contained in the previous document. If'the exact source of the data could
- not be determined, the document was eliminated.
2. The referenced study must contain test results based on more than
one test run.
3. The report must contain sufficient data to evaluate the testing
procedures and source.operating conditions (e.g., one-page reports were
generally rejected). , ,
A final set of reference materials was compiled after a thorough •
review of the pertinent reports, documents, and information according to
these-criteria.
3.2 EMISSION DATA QUALITY RATING SYSTEM
As part of MRI's analysis of the emission data, the quantity and
quality of the information contained in the final set of reference
documents were evaluated. The following data were always excluded from
consideration. " • ,
1. Test series averages reported in units that cannot be converted
to the selected reporting units;
3-1
-------
2. Test series representing incompatible test methods (i.e.,
comparison of -EPA Method 5 front-half with EPA Method 5 front- and back-
half);
3. Test series of controlled emissions for which the control device
is not specified;
4. Test series in which the source process is not clearly identified
and described; and
5. Test series in which it is not clear whether the emissions were
measured before or after the control device.
Data sets that'were not excluded were assigned a quality rating. The
rating system used was that specified by the OAQPS for the preparation of
AP-42 sections. The data were rated as follows: - •
A—Multiple tests performed .on the same source using sound
methodology and reported in enough detail for adequate validation. These
tests do not necessarily conform to the methodology specified in either
the inhalable particulate (IP) protocol documents or the EPA reference
test methods, although these documents and methods were certainly used as
a guide for the methodology actually used.
B—Tests that were performed by a generally sound methodology but
lack enough detail for adequate validation.
C~Tests that were based on an untested or new methodology or that
lacked a significant amount of background data.
D—Tests that were based on a generally unacceptable method but may
provide an order-of-magnitude value for the source. ' i ••
The following criteria were used to evaluate source test reports for
sound methodology and adequate detail:
1. Source operation. The manner in which the source-was operated is
well documented in the report. The source was operating within typical
parameters during the test.
2. Sampling procedures. Jhe sampling procedures conformed to a
generally acceptable methodology. If actual procedures deviated from
accepted methods, the deviations are well documented. When this occurred,
an evaluation was made of the extent such alternative procedures could
influence the test results.
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3. Sampling and process data. Adequate sampling and process data
are documented in the report. Many variations can occur unnoticed and
without warning during testing. Such variations can induce wide
deviations in sampling results. If a large spread between test results
cannot be explained by information contained in the test report, the data
are suspect and were given a lower rating.
4- Analysis and calculations. The test reports contain original raw
data sheets. The nomenclature and equations used were compared to those
(if any) specified by EPA to establish equivalency. The depth of review
of the calculations was dictated by the reviewer's confidence in the
ability and conscientiousness of the tester, which in.turn was based on
factors such as consistency of results and completeness of other areas of
the test report.
3.3 PARTICLE S'IZE DETERMINATION
There is no one method which is universally accepted for the
determination of particle size. A number of different techniques can be
used which measure the size of particles according to their basic physical
properties. Since there is no "standard" method, for.particle size
analysis,.a certain degree of subjective evaluation was used to determine
if a test series was performed using a sound methodology for particle
sizing.
for pollution studies, the most common types of particle sizing
instruments are cyclones and cascade impactors. Traditionally,' cyclones
have been used as a preseparator ahead "of a cascade impactor to remove'the
larger particles. These cyclones are of the standard reverse-flow design
whereby the flue gas enters the cyclone through a tangential inlet and
forms a vortex flow pattern. Particles move outward toward the cyclone
wall with a velocity that is determined by the geometry and flow rate in
the cyclone and by their size. Large particles reach the wall and are
.collected. A series of. cyclones with progressively decreasing cut-.points
can be used to obtain particle size distributions. "
Cascade impactors used for the determination of particle size in
process streams consist of a series of plates or stages containing either
small holes or slits with the size of the openings decreasing from one
plate to the next. In each stage of an impactor, the gas stream passes
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through the orifice or slit to form a jet that is directed toward an
impaction plate. For each stage, there is a characteristic particle
diameter that has a 50 percent probability of impaction. This
characteristic diameter is called the cut-point (D50) of the stage.
Typically, commercial instruments have six to eight impaction stages with
a backup filter to collect those particles which are either too small to
be collected by the last stage or which are reetrained off the various
impaction surfaces by the moving gas stream.
3.4 PARTICIPATE SIZE'DATA ANALYSIS METHODOLOGY
The particulate emission information contained in the various
reference documents was reduced to a common format using a family of
computer programs developed especially for this purpose. These programs
use the so-called "spline" fits. Spline fits result in cumulative mass
size distributions very similar to those which would be'drawn using a
French curve and fully logarithmic graph paper. In effect, the logarithm
of cumulative mass is plotted as a function of the.logarithm of the
particle size, and a 'smooth curve with a continuous, nonnegative
derivative is drawn. .
The process by which this smooth cumulative distribution is
constructed involves passing an interpolation parabola through three
measured data points at a time. The parabola is then used to interpolate
additional points between measured values. When the set of interpolated
points are added to the original set of data, a more satisfactory fit is •
.obtained than would be the case using only the measured data. The size-
specific emission factors are determined once the size distribution is
obtained by a spline fit.
3.5 EMISSION FACTOR QUALITY RATING SYSTEM
The quality of the emission factors developed from analysis of the
test'data was rated utilizing the following general criteria:
A—Excellent: Developed only, from A-rated test data taken from many
randomly chosen facilities in the industry population. .The source
category is specific enough so that variability within the source category
population may be minimized.
B—Above average: Developed only from A-rated test data from a
reasonable number of facilities. Although no specific bias is evident, it
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is not clear if the facilities tested represent a random sample of the
industries. As in the A-rating, the source category is specific enough so
that variability within the source category population may be minimized.
C—Average; Developed only from A- and B-rated test data -from a
reasonable number of facilities. Although no specific bias is evident, it
is not clear if the facilities tested represent a random sample of the
industry. As in the A-rating, the source category is specific enough so
that variability within the source category population may be minimized.
D—Below average: The emission factor was developed only from- A- and
.B-rated test data from a small number of facilities-, and there is reason
to suspect that these facilities do not represent a random sample of the
industry. . There also may be evidence of variability within the source
category population. Limitations on the use of the emission factor are
noted in the emission factor table.
E—Poor; The emission factor was developed -from C- and D-rated test
data, and there is reason to suspect that the facilities tested do not
represent a random sample of the industry. There also may be evidence of
variability within the source category .population. Limitations on .the use
of these factors.are-always noted.
The use of these criteria is somewhat subjective and depends to an
extent on the individual reviewer. Details of the rating of each
candidate emission factor are provided in Chapter 4 of this report.
3.6 REFERENCES FOR CHAPTER 3
1. Technical Procedures for Developing AP-42 Emission Factors and
Preparing AP-42 Sections, Office of Air Quality Planning and
Standards, U. S. Environmental Protection Agency, Research Triangle
Park, North Carolina. April 1980.
2. Interim Report to State/Local APC Agencies of Particle Size
Distributions and Emission Factors (Including PM10), Office of Air
Quality Planning and Standards, U. S. Environmental Protection Aqency
Research Triangle Park, North Carolina. July 1986.
3. Lime and Cement Industry-Source Category Report. Volume II-Cement
Industry, EPA Contract No. 68-02-3891, Midwest Research Institute
Kansas City, Missouri. August 1986.,
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4. POLLUTANT .EMISSION FACTOR DEVELOPMENT
4.1 PROCESS DESCRIPTIONS, TEST PROTOCOL SUMMARIES, AND DATA REVIEWS
Process descriptions, test protocol summaries, and data reviews are
presented below by combustor type "in the following order: mass-burn,
excess-air MWC's; modular, starved-air MWC's; and RDF-fired MWC's. Each
summary contains a brief description of the combustor, the air pollution
control system, the sampling and analysis protocol employed at the test
site, and the data rating.
4.1.1 Baltimore. 1985 Tests (Mass Burn, Waterwal1)1»2
The Baltimore facility consists of three, identical', 686-Mg/d
(750-ton/d), mass-burn, waterwall combustor units, which were installed in
1984. Each combustor has its own 91,400-kg/h, (200,000-lb/h) steam heat
recovery boiler. A portion of the steam drives a 60-MW turbine
generator. Nonprocessed waste is transferred by overhead cranes from the
contained pit to the feed hopper where ram feeders charge the waste onto
Von Roll reciprocating grates. Overfire and underfire air is drawn from
the pit area to fuel the combustion process. Furnace temperatures are
between 1200° and 1370°C (2200° and 2500°F). Bottom ash and ESP ash are
combined onto a semidry, vibrating-pan conveyor and processed through a
screen and magnetic separator prior to disposal.
Particulate emissions are controlled by three, conventional,
wire/plate ESP's, each designed by Wheelabrator Frye with four fields.
The three ESP exhaust streams are separately ducted and routed through an
induced-draft (ID) fan into a common stack..
Compliance testing was performed in January.1985 on Unit 1 under
normal operating conditions. Emission measurements included: (1) PM by
M5; (2) S02 by a modified M8 train with analysis by M8; (3) NO by EPA
Method 7 (M7); and (4) CO by EPA Method 10 (M10) with sample analysis by
flame ionization detection with gas chromatography (FID/GC).
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Tests were conducted on Unit 2 while it was operating normally at
approximately 85 percent of capacity during May 1985. These tests were
conducted by EPA's Emission Measurement Branch (EMB) to measure chromium
emissions. Uncontrolled and controlled emission testing included PM by
EPA M5; inorganic As by EPA M108; Cr"1"6 by digesting M5 filters in an
alkaline solution with analysis by the diphenylcarbazide colorimetric
method; total Cr by neutron activation analysis (NAA); and particle sizing
with an Andersen Mark' III impactor and an Andersen heavy grain loading
impactor/cyclone. Metal analyses included filter and impinger solutions
for As and filter only for total Cr and Cr"1"6.
A rating of A was assigned to-data from'both the January and May 1985
tests.
4.1.2 Braintree, 1978 Test (Mass Burn, Waterwall)3
the Braintree municipal incineration facility comprised two,
identical, mass-burn, waterwall incinerators. The facility is no longer
in operation. Each incinerator was designed to handle 109 Mg/day
(120 tons/day) at a charge rate of-1,090 kg/charge (2,400 Ib/charge). The
refuse was charged by gravity onto an inclined grate, where drying
occurred, and then onto a Riley-Stoker horizontal traveling grate, where
combustion occurred. The burn grate was designed for a-heat release rate
of 3,240 MJ/m2h (285,000 Btu/h-ft2). The grate was supplied with
underfire air from a forced-draft (FD) fan; typically, no overfire air was
used. The hot gases passed to the Riley Stoker boiler that 'had 83 m2
2
(890 ft-) of waterwall heating surface and boiler tubes with a heating
surface of 224 m2 (2,410 ft2). The boiler had a capacity of 13,600 kg/h
(30,000 Ib/h) of 1,720 kPa (250 psig) steam.
The exhaust gases from each incinerator were directed to ESP's. A
bypass duct that connected the inlets of the two ESP's allowed the exhaust
from an incinerator to be directed to either or both ESP's. The ESP's
were identical,, single-field wheelabrator-Frye units.. Each had a specific
collection area (SCA) of 413 m2/l,000 m3/min (126 ft2/!,000 acfm) and a
design collection efficiency for PM of 93 percent. No data.were presented
on ESP operating conditions during the test.
The metals testing at Braintree was conducted as a part of a
comprehensive environmental assessment of the facility. Key elements of
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the program included quantitation and characterization of the refuse feed,
bottom ash, and ESP outlet PM and gases. The ESP inlet PM also was
measured. Three tests, all at normal operating conditions, were
conducted.
At the inlet to the ESP, PM concentrations were determined using M5,
. and particle size measurements were made with a Brink impactor. The
particulate filters from the M5 tests were analyzed for As, Hg, Pb, and Cd
using spark source mass spectroscopy (SSMS) and AA. At the outlet of the
ESP, PM concentrationsiwere determined using M5, and particle size
distributions were determined by an Andersen cascade impactor. The M5 '
filters were analyzed for metals using SSMS and AA. In addition, an
impinger train that contained potassium hydroxide (KOH) in the first
impinger and KMnOH in the second and third impingers was used to sample
for vaporous Hg at the ESP outlet. The KOH impinger also was analyzed for
.concentrations of chloride and fluoride. A SASS train-was used during one
test at the ESP outlet. The impinger solutions from the SASS train were
analyzed for volatile As and Hg. Mercury concentrations in the impinger
train and SASS train were determined by cold vapor.generation AA, and As
concentrations were determined by a hydride generation AA technique.-
Continuous analyzers were used to measure stack concentrations of CO
by nondispersive infrared spectrophotometry (NDIR), total hydrocarbons
(THC) by. FID, S02 by NDIR, NOX by chemiluminescence, and 02 by
• polarographic cell. .
The data in this report were assigned a rating of A.
4-l-3 Chicago Northwest. 1980 Tests (Mass Burn. WaterwalT)1*
The Chicago Northwest incineration plant consists of four, mass-burn,
waterwall incinerators, each with a nominal burning capacity of 363 Mg/day
(400 ton/day). To charge the furnace, waste feed is transferred by crane
to the charging chute, fed by gravity onto three stoker feeders, and
push'ed onto the stoker by the reciprocating action of the stoker
feeders. In the combustion chamber, the waste is moved through the system
by a series of Martin/inclined, reverse-action reciprocating grates. The
stokers are designed to use 1,900 Nm3/nrin (67,200 scfm) of primary
underfire air at 4.5 kPa (18 in. w.c.) and 476 Nm3/min (16,800 scfm) of
overfire air at 3.7 kPa (15 in. w.c.). Underfire air is introduced into
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multiple compartments under the stoker grates; distribution is manually
controlled. Overfire air is supplied through the front and rear walls.
The system is designed to produce 49,900 kg/h (110,000 Ib/h) of steam at
1,720 kPa (250 psig) and has an average stoker heat release rate of
3,770 MJ/h-m2 (325,000 Btu/irft2). The boiler is a convection, water-wall,
natural-circulation type with economizer that has 1,840 m2 (19,800 ft2) of
heating surface.
. The air pollution control device for Unit 2 is a p.late-type ESP. It
is designed for a collection efficiency of 97 percent at an inlet grain
loading of 3,600 mg/Nm3,(1.6 gr/scf). The design inlet temperature is
260°C (500°F), and the superficial gas velocity is 0.9 m/s (3 ft/s).
The testing at Chicago included outlet sampling for organic
pollutants and Cd on Unit 2. Organic sampling was conducted using the EPA
MM5 sampTing train, and Cd samples were collected in an M5 sampling
train. Stack gases also were monitored continuously for 02, C02r CO, and
THC (Ci through -C6 hydrocarbons). The M5 filter was digested, and Cd
analyses were conducted with flame AA using an air-acetylene flame.
The data in this report were assigned a rating of A.
4.1.4 Hampton, 1981, 1982,' 1983, 1984 Tests (Mass Burn. Waterwall)5"8
The Hampton facility consists of two, mass-burn, waterwall
incinerator-boilers. Each unit is designed to handle approximately
• 114 Mg/day (125 tons/day), producing steam at 15,000 kg/h (32,000 Ib/h).
Refuse is moved from a storage pit to the feed hopper by an overhead crane
and transferred through the furnace by a series of three, inclined
reciprocating grates. The furnace is designed to burn refuse without
auxiliary fuel. Unburned residue is discharged into a waterfilled quench
pit. Particulate matter removed from the flue gas also is conveyed to the
quench pit. The pit is continuously dredged into a truck for landfill
disposal. During stable operation, the firebox temperature is near 1260°C
(2300°F), and the furnace wall temperature ranges from 790° to 840°C
(1450° to 1550°F).
The facility is equipped with an ESP. Hot furnace flue gas, after
traveling through economizers, goes to the ESP where PM is removed. A
conveyor discards ESP ash to an ash pit, and the gas from the ESP is
routed to an ID fan and out the stack.
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Tests were conducted in September 1981 to evaluate measurement
methods for sampling chlorinated hydrocarbons, gaseous HC1, and
particulate chloride.6 The feed rate was 112 Mg/day. (123 tons/day) during
the test period. Process conditions were not reported. Organic compounds
were sampled using a MM5 train with glass beads in the first two impingers
and an XAD-2 sorbent resin cartridge located between the third and fourth'
impingers. Organic compound analysis was performed.with high resolution
gas chromatography/high resolution mass spectroscopy (HRGC/HRMS) to
measure (1) tetra- through octa-CDO and CDF homologs; (2) di- through
hexa-ClB homologs; (3) tri- through penta-ClP homologs; and (4) tri-
through hexa-homologs of PCB. An EPA M6 train with sodium hydroxide
(NaOH) in all four impingers was used to measure HC1. Analysis for HC1
was performed by the mercuric nitrate method modified by treating the
sample with hydrogen peroxide H202."
Testing was performed in April,1982 to characterize stack emissions
during normal operation at an estimated feed rate of 114 Mg/day
(125 tons/day).7 Detailed data on process operation were not available. '
Comprehensive, emission measurements included: (1) PM by M5; (2) particle
size with an Andersen impactor; (3) particle-phase metals from '
cyclone/filter catch from a SASS train by XRF .(As, Cd, Cr, Hg, Pb, and Ni)
and SSMS (Be only); (4) volatile'metals (As, Hg, Pb, et al.) from SASS
impingers with H202 followed by.ammonium persulfate/si Tver nitrate
solutions by AA analysis; (5) HC1 and HF by an M6 train with NaOH solution
in first two impingers by ion chromatography (1C); (6) polyaromatic
hydrocarbons (BaP, et al..), 2,3,7,8 TCDD/TCDF and total TCDD/TCDF with
SASS cyclone, filter, and.XAD-2 resin catch by HRGC/MS; (7) anions in
flyash (sulfate, nitrate, chloride, bromide, flouride, and phosphate) with
SASS impingers with distilled water by 1C; (8) aldehydes (formaldehyde,
et al.) with an M6 train with HC1, 2,4-dinitrophenyl-hydrazine, and
isooctane in first two impingers by reverse-phase high-performance liquid
chromatography (HPLC); and (9) volatile hydrocarbons (benzene, et al.) and
chlorinated organic compounds (chlorobenzene isomers/homologs, et al.)
using EPA Method- 25 (M25) equipment quantitated by FID and electron
capture detection (ECD), respectively. Organic screening analysis to
estimate concentrations of various compounds was performed by HRGC/MS from
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aliquots of the sample extracts, but the reported estimates were not
included in the EPA data base.
Testing was performed in 1983 as part of a nationwide survey to
determine organic emissions from major stationary combustion sources.4
The unit was tested under normal conditions with variations in steam flow
from 13,600 to 15,400 kg/h (30,000 to 34,000 Ib/h) and furnace temperature
from 700° to 930°C (1300° to 1700°F). Process and ESP operating
conditions were monitored and reported, and continuous emission monitoring
for 02, C02, CO, and THC was conducted. Sampling was performed with a MM5
train with a condenser and an XAD-2 resin cartridge located between the
filter box and first impinger. Quality assurance and quality control
(QA/QC), included surrogate spiking, surrogate recovery, blank samples, and
analyte breakthrough tests.. Analyses were by HRGC/MS, high resolution gas
chromography/mass spectroscopy-selected ion monitoring (HRGC/MS-SIM), and
HRGC/HRMS-SIM. Emission,results were reported for mono- through tetra-CDD
and CDF homologs and 2,3,7,8-TCDD, BaP, and mono- through deca- homologs
of PCB.
. Testing was also performed in October 1984 to determine any changes
in emission characteristics since the installation of an air preheater and
a CO continuous monitor.6 The incinerator was tested during normal
operation with a steam flow of 12,500 kg/h (27,500 Ib/h) and furnace
temperature near 820°C (1500°F). The process operation was.monitored and
process data were reported in the appendix to the test report, but these
data have not yet been included in the EPA data base. Emission results
were reported for the tetra- through octa-CDD and CDF homologs,. di-
through hexa-ClB homologs, and tri- through penta-ClP's. Sampling was
performed with an MM5 train with glass beads in the first two impingers
and an XAD-2 resin cartridge located between the third and fourth
impingers. All analyses were by HRGC/HRMS.
Because they lacked raw data sheets and information on process
conditions, the 1981 and 1982 test data were assigned a rating of B. The
1983 and 1984 test data were assigned a rating of A.
4.1.5- Tulsa, 1986 Test (Mass Burn, Waterwall)9
The Tulsa facility currently consists of two, identical, 343-Mg/d
(375-ton/d), mass-burn, waterwall combustor units, which were installed in
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1986. Each combustor has its own steam heat recovery boiler, portions of
which drive a turb.ine generator. Nonprocessed waste is transferred by
overhead cranes into the feed hopper where the waste is charged onto
Martin GmbH, inclined, reverse-reciprocating grates.
Particulate matter emissions are controlled by two ESP's. The two
ESP exhaust streams are routed into a common stack.
Compliance tests were conducted on Units 1 and 2 during normal
operation to determine controlled emission levels for: (1) PM by EPA M5;
(2) Pb, Be, and Hg by EPA Methods 12 (M12), 104, and 101A (M101A),
respectively; (3) Nox and CO by EPA Method 7E (M7E) and M10, respectively;
(4) H2SO^, S02, HF, and HC1 by EPA MS and Method ISA (M13A); (5) volatile
organic compounds (VOC) by California Air Resources Board Method 100; •
(6) opacity by EPA Method 9 (M9); and "(7) trace chlorinated organic
compounds by an MM5 train as specified by the ASME draft protocol.
Separate emission measurements were made for each pollutant on Units 1 and
2, with the exception that measurements for Hg, .trace chlorinated organic
compounds, and opacity were made at the stack common for both units.
Front- and back-half M5 determinations were made to measure the amount of
particulate and condensible matter, respectively. The M5 impinger Liquid
was analyzed to determine the amount of ammonium sulfates, inorganic
chlorides, and fluorides. The M5 filter and impinger liquid were both
analyzed to determine HF and HC-1 levels. Emissions of Pb and Be were
measured by modifying EPA M12 by charging the first impinger with
distilled water and the second impinger with dilute aqua regia. •
The data in this report were assigned a rating of A.
4-l-6 Peekskill, 1985 (Mass Burn, Waterwalll10
The Westchester facility in Peekskill, New York,, consists of three,
identical boilers, each of which has a design capacity of 76,000 kg
(167,700 Ibs) of steam per hour at 440°C and 6,200 kPa (830°F and
900 psig) from the combustion of 682 Mg.(750 tons) of refuse per day. The
Von Roll reciprocating-grate mass burners are fed uniformly by a ram
system, which is in turn fed at random by grapplers. Primary air is
introduced from beneath the grates while secondary air is introduced
through nozzles located above the grates. The refuse is combusted on
licensed Von Roll grates in the furnace, which operates at temperatures
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exceeding 980°C (1800°F). Odor from the refuse pit area is controlled by
drawing combustion air from the pit area to maintain negative pressure
over the pit. Electricity is produced by a turbine generator that is
driven by superheated steam from a waterwall boiler above the grate
area. ' .
Each boiler is serviced by a three-field ESP designed to keep
particulate emissions below 68 mg/Nm3 (0.03 gr/dscf) at 12 percent C02.
From the ID fans, the gases are fed into three separate flues within the
single stack.
Sampling at the plant was conducted on Unit 1 during April 1985 in
the ductwork between the ESP's and ID fans. Throughout testing, the unit
operated at 95 to 112 percent of design capacity. Concentrations of the
following compounds were measured during the normal operation of the
plant:
PM '
2,3,7,8-TCDD
2,3,7,8-TCDF
PCDD (tetra-octa)
PCDF (tetra-octa)
Chrysene • '
PCB
BaP
Formaldehyde
HC1
As
Be
Hg
Cd
Cr
Pb
• Manganese
Ni
Vanadium
Zinc
SO 2
NOY
cox
CO 2
Measurements for criteria and other pollutants were performed using
applicable EPA reference methods. Measurements for PCDD/PCDF were made
using the ASME draft protocol. The organics train consisted of a glass-
lined probe, a heated glass-fiber filter, a cooling condenser, a water-
cooled glass cartridge containing 40 g of XAD-2 resin, and several glass
impingers. All sections of the train were glass and were connected by
Teflon™ unions except the 316 stainless steel nozzle. The resin was
spiked before sampling with -a known quantity of isotopically tagged
1,2,3,4-TCDD to determine retention efficiency.
Because this report lacks the process data necessary to calculate an
emission factor these data were assigned a rating of C.
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4-1-7 Gallatin. 1983 Tests (Mass Burn. Waterwall)11
The Gallatin facility fires unprocessed municipal waste to two,
91-Mg/day (100-ton/day), O'Connor, water-cooled rotary combustors. Waste
received at the facility 1s -transferred to the feed hoppers by overhead
cranes and then fed to the combustor by a ram-feed system. The inclined
combustor rotates between 10 and 20 revolutions per hour (rph) to process
the refuse through the combustion zone. Combustion air is preheated to
230°C (450°F) and is fed as both underfire and overfire air in the rotary
.combustor and as overfire air to the boiler zone. The rotary combustor is
mated to a Keel.er-waterwall boiler for radiative and convective heat
transfer. The boiler is designed to produce 12,000 kg/h (27,000 Ib/h) of
steam at 2,930 kPa (425 psig).
At the time of the test, the emissions from the Gallatin facility
were controlled by a cyclone and an electrostatically assisted FF. The FF
was an innovative- technology that was eventually replaced with an ESP due
to several problems associated with the unit. No other design information
on the control system was provided in the report.
Particle size distribution and heavy metals emission rates were
determined at .the outlet'from the combustor using a Flow Sensor, five-
stage, multiclone sampling system. A total of four runs, each about 1.5
hours in duration, were made. After the cyclone catch from each stage was
weighed for particulate loadings, metals analyses were conducted using
AA. Those metals analyzed were As, Be, Cd, Cr, Ni, and Pb. Four separate
tests at the combustor outlet measured Hg using M101 with analyses by
AA. In addition to particulate and metals measurements, emission rates of
S02 and S03 were determined using EPA MS. The HC1 and HF rates were
measured with an M6-type train. A continuous emission monitoring system
was used to measure stack gas concentrations of 02 (paramagnetic), CO and
C02 (NDIR), NOX (chemiluminescence), S02 (ultraviolet), and total
nohmethane hydrocarbons (GC/FID).
The data in this report were assigned an A rating.
4-1-8" Km-e, japan, 1981 Test (Mass Burn. Waterwall)12
The Kure facility consists of two, 75-Mg/day (165-ton/day), mass-
burn, O'Connor, water-cooled rotary combustors equipped with separate
waterwall boilers. The facility began commercial operation in
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November 1980. Two cranes mix the solid waste and deposit the loads into
the feed chutes for each of the combustors. The ram behind the entrance
to the rotary combustor pushes the solid waste from the bottom of the feed
chute into the rotary combustor on a scheduled cycle that sets the
volumetric feed rate. As the solid wastes are combusted, they are mixed
by the rotation of the combustor barrel (10 to 20 rph) and moved the
length of the rotary combustor. The bottom ashes pass through the base of
the boiler on a small traveling grate into a quench tank, then along a
conveyor into the ash pit. A crushing plant recovers recyclable materials
after crushing and shearing the bulky waste and delivers the remaining
waste material by conveyor to the solid waste receiving pit for combustion
in the rotary combustors. Combustion gas passes through the boiler, FD
fan, and combustion air preheater.
The air pollution control system consists of an ESP followed by a wet
scrubber. The ESP was manufactured by Ishipawajima-Harima Heavy
Industries Company, Ltd. The wet scrubber has a turbulent contacting
absorber design'.
Testing was performed on Unit 1 and consisted of a comprehensive
evaluation of waste feed combustor process parameters along with uncon-
trolled and controlled emission measurements. Emission .measurements
included: PM by M5; S02 and.SO3 by M6 and M8; NO, NOX, 02, and S02 by
continuous emission monitors (CEM's); hydrocarbons by 6C/FID after
collection in charcoal tubes and metal bombs; and particle sizing with an
Andersen impactor. Heavy metals were analyzed for the different particle
size ranges by emission spectrophotometry and from M5 filters by NAA. The
data in this report were assigned an A rating.
4.1.9 Munich, 1984 Tests (Mass Burn, Waterwall)13
The Munich North III MWC facility'consists of two, mass-burn
incinerator-boiler units, each designed to burn 480 Mg/day (530 tons/day)
of municipal waste and 260 Mg/day (290 tons/day) of clarified sludge to ..
produce 50,000 kg/h (110,000 Ib/h) of steam. A hydraulic ram located
under the feed chute charges the waste onto reciprocating grates.
Combustion airflow is controlled by an inlet damper on the primary air
fan. The firing rate is controlled by 02 and temperature monitors in the
first boiler pass, which regulate the refuse feed rate and combustion
4-10
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airflow. The refuse "feed rate is determined by the stoke rate of a
hydraulic feeder under the feed chute. -Air flow is controlled by an inlet
damper on the primary air fan. The bottom ash falls off. the end of the
grate into a water quench ash extractor. A bar grizzly at the extractor
discharge separates oversize materials (mostly metal) from the ash, which
is transported by belt conveyor to the ash bunker. The oversize material
"is. manually removed to a dumpster.
The emission control system consists of a DBA SD reactor followed by
a DBA ESP. Flue gas from the boiler enters the SD at about 260°C
(500°F). The lower inlet section of the SD is a cyclonic preseparator
where approximately 70 percent of the fly ash is removed from the flue gas
and pneumatically transported to the ash bunker. From the preseparator
section, the flue gas flows upward through a distribution grid and into
10 flow tubes arranged annularly on the reactor perimeter. Each tube
contains a dual-fluid nozzle used for spraying the lime slurry into the
gas stream. The atomized lime slurry, which is a composite of concen-
trated lime slurry and dilution water, is prepared from calcium oxide
(CaO) in a slaker. The acid gases are removed from the flue gas by an
absorption-reaction process while the water component of the droplet is
evaporated. The result is a dry particulate which includes calcium salts
and excess lime. The evaporation process lowers the temperature of the
flue gas to approximately 150°C (300°F). The solid reaction products from
the SD reactor, together with the dust that-has passed through the
cyclone, are carried over into a two-field ESP and removed from the flue
gas. The collected material is mechanically and pneumatically transported
to the ash bunker. The ESP exhaust is routed through an ID fan and a
concrete stack. . -
The intent of the test program was to establish the ability of the
control system to maintain air pollutant emissions at levels acceptable in
the U.S. Test conditions were selected to optimize the .emission control
system performance over a range of SD operating conditions but were
limited during testing by certain plant operating requirements. During
these tests, only MSW was fired. Uncontrolled and controlled emission
testing was performed for PM, particle size distribution, HC1, and SOX.
Controlled emission tests were conducted for several selected metals,
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including As, Be, Cd, Cr, Pb, arid Ni. The sampling and analysis methods
used in the test were: (1-) M5 for PM; (2) M8 for S02 and S03; (3) M6 for
HC1, modified by using distilled water in the impingers; (4) particle
sizing with an Andersen cascade impactor and three-stage Flow Sensor
multiclone; and (5) heavy metals with Flow Sensor multiclone sampling"and
AA analysis.
The data in this report.were assigned a rating"of B because the
report lacked raw data sheets and some process data.
4.1.10 Quebec, 1985-86 Pilot-Scale Tests (Mass Burn, Waterwall)11*
The Quebec incinerator is a mass-burn design developed in the early
1970's to burn as-received refuse in a waterwall furnace. There are four
incinerators, each rated at 227 Mg/day (250 tons/day) with a common refuse
storage pit and stack. Each incinerator consists' of a vibrating feeder-
hopper; feed chute; drying/burning/burn-out grates (Von Roll design);
refractory-lined burning zone; waterwalled, partially lined upper burning
zone; waste heat recovery boiler with superheater and economizer (Dominion
Bridge); two-field ESP; an ID fan; and wet ash quench/removal system. The
incinerator receives municipal, commercial, and suitable industrial solid
waste.' Each,of the four units is capable of independent operation and is"
rated to produce 37,000 kg/h (81,500 Ib/h) of steam when burning
227 Mg/day of refuse with a heating value of 13,950 kj/kg
(6,000 Btu/lb). • " .
Environment Canada in cooperation with Flakt Canada, Ltd.,
established an extensive test program to evaluate the capability of two
pilot-scale scrubber and FF control systems to remove PM, acid gases,
heavy metals, PCDD, PCDF, and other organic compounds. Evaluation of
operating conditions to minimize these contaminants also were of
interest. Flakt constructed a large-scale pilot facility at the Quebec.
plant equipped with:
1. A flue.gas slipstream from.the ESP inlet of Unit 3 to deliver
58 Nm3/min (2,000 ft3/min) at 260°C (500°F) to the pilot facility;
2. -An SD—Flakt's DRYPAC design (also used as a gas cooler) with
slurry spray nozzle and bottom screw conveyor;
3. A WSH/DI—Flakt's DAS design, with a single, dry hydrated lime
injection nozzle and an internal cyclone integral with the scrubber at the
entrance; and
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4. A pulse-jet FF-Flatk's OPTIPULSE design, using high-temperature
Teflon™'bags as the filtering media with, an air-to-cloth ratio of 4.4
to 1.
Testing and process monitoring were conducted during normal operation
of the full-scale incinerator producing 31,000 to 34,000 kg/h (68,000 to
75,000 Ib/h) of steam. Key operating parameters of the pilot system were
controlled and monitored at the selected test conditions. Note that these
controlled conditions, particularly the constant flow rate of the
slipstream, obtained during the pilot-scale testing may not be
representative of the fluctuations typically experienced by full-scale
operations. Uncontrolled and controlled emission measurements were
performed for PCDD, PCDF, HC1, S02, metals (As, Cd, Cr.-Hg, Pb, Ni,
et al.), PCB, C1B, PAH's, and C1P.
Samples were taken at three locations: before the scrubber, between
the scrubber and the FF, and at the stack of the FF. Four sampling trains
were.operated simultaneously during the testing. In the PM/metals/HCl
train, which is based on the M5 train, gaseous HCl and metals were
scrubbed'by a series of water- and aqua regia-filled impingers. In the
dedicated" HC1 train, two water-filled midget impingers were employed.
Chlorides were analyzed by 1C. In the Hg train, Hg was scrubbed by two
impingers containing KMnO^. Metals were analyzed using DCPES. with these
exceptions: Hg was determined by measuring the Hg vapor concentration by
fTameless atomic absorption (FAA), and As was determined by the formation
of its hydride and analysis by FAA. In the organics train, gaseous
organics were trapped in an XAD-2 resin tube and an ethylene glycol-filled
impinger; analysis was by GC/MS.
Continuous gas monitoring was performed at the inlet for S02 (by
nondispersive ultraviolet spectrophotometry [NDUV])^ HC1 (gas filter '
correlation), and THC (by FID). At the midpoint, HC1 and S02 were
.continuously ana-lyzed, and at the. outlet, all of the above and CO (by. '
NDIR) were continuously monitored.
Because none of the data in this report represent normal operating
conditions, the data were rejected.
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4.1.11 Malmo. 1983 Report (Mass Burn and RDF-Fired Waterwall)15
The Malmo plant has two MWC units capable of burning as-received and
RDF municipal waste at a rate of 10 tons/h. Each unit is designed with
Martin, reverse-acting, traveling grates-'and Wagner-Biro two-stage
boilers. The RDF processing includes a ballistic separator, a magnetic
separator, and sorting and shredding equipment to produce 3,200 kcal/kg
(5,200 Btu/lb) fuel. Fuel is charged through a hopper and onto an
inclined grate. The refuse is dried, ignited, and combusted on the grate
during transport through the furnace. Primary air is-distributed through
fine areas in the grate while secondary air is introduced through nozzles
located on front and rear walls at the boiler entrance. Both primary and
secondary air flow rates are manually adjusted for different operating
conditions. Each furnace is equipped with a two-stage waste heat boiler
having a nominal capacity of 32 MW. In the boilers, the flue gas is
cooled from 1000° to 1100°C (1800° to 2000°F) to approximately 290°C •
(550°F) by circulating 540,000 kg/h (1,200,000 Ib/h) of hot water which is
heated from 110° to 160°C (230° to 320°F). The flue gas Is further cooled
in two additional boilers to improve the gas cleaning process and to
increase energy efficiency.
"The emission control system includes cyclones, a DI, an ESP, and an
FF designed to treat 1,300 m3/min at 220°C (46,000 acfm at 430°F). The
flue gas is first directed to the cyclones, which remove approximately 60
to 70 percent of the PM. The gas then enters the reactors where lime is
mixed with the flue gas. The top of the reactor is designed as an axial'
cyclone in which coarse lime particles are collected and then returned to
the point of injection. An ESP followed by an FF collects the entrained
DI particles and incinerator fly ash.
The test program was conducted to measure and compare emission
control system performance during as-received waste and RDF
incineration. Thirty process and control parameters were monitored by a
data logger. Sampling was performed upstream and downstream of the
control system for PM, HC1, CO, gas- and solid-phase metals (i.e., Cd, Hg,
Pb, and Zn), medium-weight hydrocarbons (C6-C18)., and polycyclic and
chlorinated compounds.
4-14
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Measurements for PM were performed with isokinetic extraction and
collection on quartz filter fabric at 160°C (320T). The "sample gas was
cooled, dried, and measured with a flowmeter and volume meter. Sampling
for HC1 was performed using NaOH in two impingers in series, and HC1
analysis was performed by filtration with silver nitrate using an ion-
selective electrode. Sampling for Hg was performed using three, impingers
with separate solutions .of soda and KMnO^ with sulfuric acid, followed by
AA analysis. Sampling for Cd, Pb, and Zn was conducted using two
impingers with HN03, and analysis was by AA. Sampling for medium-weight
hydrocarbons (C6-C18) was performed by absorption tubes with Tenax™ GC
with analysis by 6C/FID and capillary column. Polycyclic and chlorinated
hydrocarbon sampling was performed by isokinetic sampling in an all-glass
train equipped a heated filter, water-cooled condenser, condensate trap,
and XAD-2 resin trap. Concentrations of PCDD and PCDF were determined for
three sampling train components (filter catch, XAD-2 catch, and .
condensate) by GC/MS using Swedish reference methods.
Because the report lacked raw data sheets, the data were given a B
rating.
4'1-12 Nurzburq. yjgst Germany. 1985 Tests (Mass Burn, Waterwain16
The facility tested at Wurzburg is a new, Martin GmBH, reverse-
reciprocating-grate, waterwall furnace. During the test period, refuse
flow to the incinerator ranged from 260 to 280 Mg'/day (290 to
310 tons/day), and steam production was about 27,000 kg/h at 4,200 kPa
(59,000 Ib/h at 610 psig). No additional information on the process was
presented in the preliminary letter report.
Emissions are controlled with a WSH/DI/FF system. , No description of
the air pollution control system was presented in the preliminary letter
report.
Particle size distribution at the outlet of the control system was
determined during one run by Using a Flow Sensor multiclone sampling
system. The PM catches from the five cyclones were combined and analyzed
for As, Cd, Cr, Ni, and Pb.
Because the process and control systems were not well described in '
the report, the data were assigned a rating of B.
4-15
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17
4.1.13 Marion County, 1986 Test (Mass Burn. waterwall)
The Marion County facility in Brooks, Oregon,, consists of two,
250-Mg/d (275-ton/d), mass-burn, waterwall combustor units. Sol id.waste
is fed to the Martin GmbH reverse-reciprocating grates by a hydraulically
operated ram feeder. The refuse is neither shredded nor sorted prior to
incineration. Generally, auxiliary fuel is not fire.d during normal
operation. However, natural gas burners ignite automatically when the
flue gas temperature falls below 980°C (1800°F). (This condition may
occur during those tests that require the incinerator to operate at
reduced waste loads.) Heat is recovered using waterwalls in the furnace
and a specially designed boiler system. The steam generated in the boiler
is directed to a 13.1-MW turbine-generator to produce electricity. Bottom
ash from the combustion grates is quenched before it is combined with the
fabric filter ash, dry scrubber cyclone ash, and boiler fly ash. The
combined ash is stored in an enclosed residue storage area for final
disposal at a landfill.
i
The air pollution control systems are identical for each of the two
units. Each unit is equipped with a Teller-design SD and FF to control
acid gas and PM emissions, respectively. The flue gases leave the boiler
economizer and enter the bottom of the SD through a cyclonic inlet that
removes large particles. Slaked pebble lime is used as a reagent; the
lime is mixed with water and injected "into the SO through an array 'of two-
fluid nozzles. The stoichiometric ratio of lime to HC1 is approximately
2.5. A dry venturi is located immediately before the FF inlet gas
plenum. Tesisorb™ material is injected into the dry venturi to enhance
(collection performance and reduce pressure drop across the FF. The FF has
a reverse-air design for cleaning, the bags and consists of six
compartments. The bag cleaning cycle for each compartment is typically 60
to 75 minutes. After exiting the FF, the combustion gases are discharged
through a 78.6-meter- (258-foot-) high stack.
Compliance tests were conducted from September 22, 1986, to
October 8, 1986, by Ogden Projects, Inc. The tests were conducted on
Units 1 and 2 during normal operation to determine controlled emission
levels for: (1) PM by Oregon Department of Environmental Quality
Method 5; (2) Pb (Boiler 1 only), Be, and Hg by EPA M12, M104, and M101A,
4-16
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18_20
respectively; (3) NOX and CO by EPA M7E and M10, respectively; (4) S02 and
HC1 by EPA M6C and MS, respectively; (5) PCDD and PCDF (-Boiler 1 only) by
EPA MM5; (6) chlorides (Boiler 1 only) and fluorides (Boiler 1 only) by
EPA M13B; (7) VOC by California Air Resources Board Method 100; and
(8) opacity by EPA M9.
Because this report lacked raw data sheets and some process
information the data were assigned a rating of B.
4.1.14 McKay Bay. 1986 Tests (Mass Burn. Naterwall)
The McKay Bay Refuse to Energy Project consists of four boilers, each
controlled by an ESP. Units 1 and 2 are vented through the west stack and
Units 3 and 4 through the east stack. Information concerning the
operating conditions of the boilers and ESP's is considered confidential
by plant personnel.
Tests were conducted in August 1986 using M104 for both sampling and
analysis of Be. Emission tests for PM were conducted in September 1986
using M5.
Because this report lacks the process data necessary to calculate an
-emission factor, these data were assigned a rating of C.
4.1.15 North Andover, 1986 Test (Mass Burn, Waterwall)21.*22
The North Andover facility, which began operation in 1985, consists
of two, identical, mass-burn, waterwall incinerators. Each unit is
designed to burn 680 Mg/d (750 tons/d) of municipal waste and produce
90,000 kg/h (198,000 Ib/h) of steam at 4,140 kPa (600. psig) and 400°C
(750°F). Steam from both boilers drives a 40-MW turbine-generator.
Nonprocessed waste is transferred by overhead cranes from a contained pit
to gravity-feed hoppers. Hydraulic rams, located at the bottom of the
feed hoppers, charge the waste onto Martin reciprocating grates.
Underfire and overfire air is 'drawn from the pit area to fuel the
combustion process, which is designed to achieve temperatures in excess of
1370°C (2500°F). Underfire air is supplied through .the grates, and
•overfire air is distributed through nozzles located on the front and rear
walls above the flame zone. Each furnace has a volume of 820 m3
(29,000 ft3), and each furnace/boiler has 4,900 m2 (53,000 ft2) of heat
transfer area. Bottom ash is quenched before being combined with the
boiler fly ash and ESP ash. The facility is equipped with two CEM systems
for CO, C02, 02, NOX, S02, and opacity.
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The air pollution control system consists of two, identical ESP's
designed to reduce the particulate matter to a level of 115 mg/Nm3
(0.05 gr/dscf) at 12 percent C02, which corresponds to about a 98 percent
collection efficiency. Design data for the ESP's are considered
confidential by -the ESP manufacturer.
' The emission-measurement program at the North Andover facility was
conducted from July 8 to July 16, 1986. Particulate loading was measured
.according to EPA M5 at the ESP outlet for Runs 1 through 6. During
Runs 2, 3, 4, 5, and 6, sampling for PCDD/PCDF at the ESP inlet and outlet
was conducted according to the December 1984 draft-of the ASME protocol.
The PCDD/PCDF sampling was conducted simultaneously at the ESP inlet and
ESP outlet. The PCDD/PCDF samples were analyzed by HRGC/HRMS.
As part of an EPA in-house study, trace metals (As, Cd, Cr, and Ni)
testing was conducted simultaneously at the ESP inlet and ESP outlet
dur.ing Runs 7, 8, and 9. Sampling followed EPA Alternative Method 12,
which also allows for the concurrent determination of PM emissions. The
EPA M12 train has been demonstrated specifically for lead and cadmium
only. However, for the purposes of the in-house study, the method, was
used as a screening-analysis for the other metals of interest. The method
was also modified by using NAA as the analysis method rather than atomic
absorption. The results for arsenic, cadmium, total chromium and nickel
were included in the test report.
Continuous emission monitoring for 02 and C02 was also conducted
during Runs 7, 8, and 9.
Because this report lacks the process data necessary to calculate an
emission factor, these data were assigned a rating of C.
4.1.16 Saugus, 1975 Test (Mass Burn, Waterwall)23
The Saugus facility is a mass-burn, -waterwall combustor that began
commercial operation in 1975. Two parallel process lines each process up
to 680 Mg (750 tons) of municipal solid waste per day. The. refuse is-
transferred from the receiving pit to the furnace feed hoppers by overhead
cranes. The refuse is neither shredde'd nor sorted prior to incineration,
and auxiliary.fuel is not used during normal operation. Heat is recovered
using waterwalls in the furnace and an external convection boiler
section. Each boiler produces 72,600 kg (160,000 Ib) of steam per hour at
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4,600 kPa and 450°C (650 psig and 850°F). Each process line includes a
two-field ESP for the control of participate emissions.
Sampling and analysis for PCDD and PCDF were conducted as specified
by the ASME draft protocol. The protocol was modified to include the use
of a horizontal condenser and the use of methylene chloride for final
recovery of PCDD/PCDF. The samples were analyzed by GC/HRMS. Oxygen, CO,
and C02 were measured by a CEM system at the stack.
Because this report lacks the process data necessary to calculate an
emission factor tnis data was assigned a rating of C.
4-. 1.17 Umea, 1984 Test (Mass Burn, Waterwall)2"
The Umea incinerator is a mass-burn, waterwall design equipped with a
boiler.' The incinerator is of the cross-grate type and was built in
1970. Raw refuse is charged at a rate of 6 Mg/h (6.6 tons/h). The air
pollution control device is an ESP.
1 Tests were,conducted during the fall of 1984 and the spring of 1985
to assess PCDD and PCDF emissions. Measurements .were made during both
normal and low temperature operations'in the fall and during normal
.operation in the spring. Particulate,'condensate, and XAD-2 absorbent
tube samples! were collected. Analysis was by HR6C/MS. The'isomer-
specific analysis did not allow the separation of 1,2,3,7,8-PeCDF from
1,2,3,4,8 PeCDF^or 1,2,3,4,7,8-HxCDF from 1,2,3,4,7,9-HxCDF.
The data in this report were assigned a rating of C because the "
report lacked raw data sheets, example calculations, and significant
process data, i
4-1-18 Philadelphia, Northwest, 1985 Tests (Mass Burn. Refractory")25
The incinerator, plant comprises two refuse furnaces, each of which is
designed to process up to 340 Mg (375 tons) of trash per day. The units
are designed to achieve a 90 percent volume reduction in refuse with a
maximum temperature of 1150°C (2100°F). Each furnace consists of a single
(primary), excess.-air combustion chamber with air-cooled., refractory-lined
walls. An elevated crane with a-clamshell bucket lifts the refuse from
the storage bin ,into a charging hopper and water-cooled gravity chute.
Refuse drops from the chute onto the inclined traveling grate, which
continuously feeds the refuse onto a horizontal traveling grate. Each
grate is driven by independent, variable-speed motors. The total
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effective grate area provided by the two grates is 45 m2 (480 ft2) per
furnace. Combustion air drawn from outside the building is provided-to
each furnace by an FD fan. The underfire/overfire air ratio is adjusted
by dampers in the FD ductwork. Incinerator residues drop off the edge of
the horizontal grate and fall through a series of residue quenching sprays
and onto a submerged residue conveyor.
The air pollution control system consists of two, two-field ESP's.
Furnace flue gases exit through spray chambers where air-atomized water
cools the gases to the ESP design operating temperature of between 288°
and 316°C (550° and 600°F). '' The gas streams in the two evaporation towers
are subjected to cyclonic flow to remove the largest particles from the
flue gases prior to the ESP. Flue gases leave the towers and travel
through the precipitator breeching where turning vanes and baffle plates
ensure even gas distribution throughout the device. Treated flue gases
are drawn from1 each precipiitatbr by a variable-speed ID fan and exit the
plant through a single stack. The ESP fly ash is discharged onto the
submerged residue conveyor. >
. Testing was conducted in 1985 to determine incinerator emissions
i .
during normal operationi (i.e., furnace temperature between 760° and 980°C
.[1400° and 1800°F] and indicated inclined grate speed of 70 ft/h). The
test protocol included sampling and analyses of ESP fly ash and
incinerator bottom ash for PCDD and PCDF; continuous monitoring of stack
gas emissions for CO, C02, 02, THC, NOX, and S02; and recording of
incinerator and ESP operating parameters. In addition, MM5 was used to
determine the PCDD, PCDF.^M, 'and HC1 stack emissions from Unit 1 and
Unit 2. One MM5 sample trairji w,ith a condenser and XAD resin trap was
analyzed for PCDD and PCDF by HRGC/HRMS; the other train was analyzed for
PM and HC1. Precision and accuracy for the MM5 analysis were assessed by
analyzing spiked blanks, determining surrogate recovery results, using
National Bureau of Standards. (NBS) control samples, and second laboratory
analysis. _ -
Because this report lacks the process data necessary to calculate an
emission factor, these data were assigned a rating of C.
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26S27
.4.1.19 Washington. D.C.. 1976 Test (Mass Burn, Refractory)1
-The Washington Solid Waste Reduction Center No. 1 (SWRC No. 1)
incineration facility comprised six, two-chamber, mass-burn, excess-air
units. The facility is no longer in operation and has been demolished.
The facility had a total capacity of 1,360 Mg/day (1,500 tons/day) and was
not equipped with energy recovery equipment. Waste was fed to each
furnace by a gravity-feed system. Solid material was moved through the
primary chamber on a stoker-grate feed system consisting of four
individual sections of continuous-feed grate. Both underfire and overfire
air were fed to the primary chamber. Combustion gases left the primary
chamber through a cross-over flue and were passed to the secondary
chamber.
Emissions from SWRC No, 1 were controlled by a multiple-cyclone
collector in series with an ESP. The ESP was a two-field unit with a
design efficiency of 95 percent.
Particulate matter samples were collected isokinetically at the
scrubber outlet using a modified form of an M5 sampling train. The
primary modification was use of an in-stack filter or impactor system..
Typical collection"time was 30 min. Analyses for most metals were
conducted using instrumental NAA. However, some samples were analyzed for
Pb and Ni using AA.
Because this report lacks the process data necessary to calculate an
emission factor, these data were assigned a rating of C.
4.1.20 Mayport, 1980 Tests (Mass Burn, Refractory)28'29
• The Mayport Naval Station facility has one, 45-Mg/day (50-ton/day),
mass-burn, refractory combustor with a 6,400-kg/h (14,000-lb/h) steam
boiler. It is designed to burn municipal refuse and waste oil. The
manufacturers ,of the combustor and boiler are Detroit Stoker Company and •
Eclipse, respectively. The combustor is "designed with primary and '
..secondary chambers, with a bridge wall and air-cooled refractory baffle
between the chambers. The primary chamber is equipped with an automatic
ram feeder-hopper, an inclined refractory hearth, a water-cooled throat,
an oil-fired burner, a stoker grate, and an ash quench tank. Another oil
burner is located in the bridge wall-baffle passage. The secondary
chamber has refractory lining and enough volume for a 3-s residence
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time. A steam heat boiler with a surface area of 411 m2 (4,430 ft2) is
designed to cool the 110-Nm3/niin (4,000-scfm) gas stream from 870° to
260°C (1600°F to 500°F).
The emission control system consists of a 40-tube9 multiple-cyclone
dust collector.
Tests were conducted in December 1980 to "determine PCDD- and PCDF
emissions while the-combustor was burning as-received municipal refuse and
waste oil (primarily fuel oil containing unknown contaminants). The unit
was operated at a nominal 50 percent capacity level for the 3-day"test
period. Fuel and ash characteristics and feed rates were determined, and
process conditions were monitored.- Emission measurements downstream of
the cyclone were made for: (1) PM by M5; (2) metals (Cd, Cr, Pb, Ni,
et al.) by digesting M5 filter in HN03 and analysis by inductively coupled
plasma techniques; (3) particle size using a seven-stage MRI Cascade
Impactor in-situ; (4) chlorides using H202 solution in the first impinger
of the M5 train; and (5) SOX and CO with CEM's.28 Emissions of TCDD and
TCDF were determined by MM5 and reported in Reference 28. Sampling was
accomplished with a heated filter, cooled XAD-2 sorbent resin trap, and
glass-distilled, HPLC-grade water in an impinger. Analyses were performed
for 2,3,7,8 TCDD and TCDF isomers and total TCDD and TCDF by 6C/HRMS.
Packed-column chromatogrophy was used for analysis, identifying TCDD's and
TCDF's as either preelutors or coeluters of the 2,3,7,8 isomers. Reported
results are presented as "maximum 2,3,7,8" TCDD and TCDF concentrations
because of the inclusion of coeluting isomers.
The data- in this report were rejected because the facility is cpfired
with waste oil.
4.1.21 Alexandria, 1976 Test (Mass Burn, Refractory)26'27
The Alexandria Municipal Incinerator consists of two, mass-burn,
excess-air units with a combined capacity of 270 Mg/day (300 tons/day).
The system-has a primary and a secondary combustion chamber but does not
have energy recovery equipment.' Waste is gravity fed to the primary
chamber through a charging chute. Solid materials are moved through the
chamber by a series of three, inclined, rocking grates. .Underfire
combustion air is supplied to the primary chamber. Combustion gases from
the chamber pass through a flue, where overfire combustion air is added,
4-22
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and into a secondary chamber, where complete combustion is achieved. No
data on the distribution of underfire and overfire air are available.
Emissions from the incinerator are controlled by a spray-baffle
scrubber. No data on scrubber pressure drop or flows are available.
Particulate matter samples were collected isokinetically at the
scrubber outlet using a modified form of an M5 sampling train. The
primary modification was use of an in-stack filter or impactor system.
Typical collection time was 30 min. Analyses for most metals were
conducted using instrumental NAA. However, some samples werje analyzed for
Pb and Ni using AA. ' !
Because this report lacks the process data necessary to calculate an
emission factor, these data were assigned a rating of C.
4.1.22 Nicosia, East Chicago, 1976 Tests (Mass Burn, Refractory")27'30
The Nicosia municipal incinerator operated by-the City of East
Chicago, Indiana, consists of. two, identical, mass-burn, excess-air
units. Each unit is capable of firing 200 Mg/day (225 tons/day) of
unprocessed municipal waste. The system is not equipped with1 energy
' recovery equipment. .Waste is fed by .ram to the combustion chamber and
moved through the system on a series of inclined gratesl No data are
available on combustion airflow .to the system.
Atmospheric emissions from each furnace are controlled by a spray
chamber followed by a three-stage, horizontal-plate-type scrubbing
tower. The liquid/gas ratio of the scrubber is 0.34
(2.5 gal/1,000 acf) ,
Particulate matter sampling was conducted at the out/ejt to the
scrubber by an M5 train modified to include 1 M HN03 in the first two
impingers. The filters were analyzed for most metals using instrumental
NAA. Analyses for Pb and Ni were performed by AA of the material leached
from the filters with HN03.
Because this report lacks the process data necessary to calculate an
emission factor, these data were assigned a rating of C.
4.1.23 Tsushima, Japan, 1983 Test (Mass Burn, Refractory)3.1
The Tsushima facility consists of two, identical, mass-burn, excess-
;air incinerators with no energy recovery. Each incinerator has a capacity
of .150 Mg/day (165 tons/day). Waste is fed to the system by a ram
4-23
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charging system. A clamshell transfers the waste from the storage pit to
the waste charging chute where it is gravity fed to the ram-feed system.
A ram feeder pushes the waste onto the furnace grates in a batch
process. The waste is transported through the furnace section by
inclined, Martin, reverse-reciprocating grates. The combustion air is
taken from the waste storage area, preheated, and fired to the furnace as
underfire air at a constant rate by an FD fan. No overfire air is used.
Combustion gas leaves the chamber at 900°C (1650°F) and is cooled to 450°C
(840°F). It then passes through the combustion air preheater where it'Is
cooled to 360°C (680°F) and on to the air pollution control system.
The air pollution control system is a Teller Environmental Systems,
Inc., dry scrubbing system. It comprises a cyclone separator, a quench
reactor, a dry venturi, and an FF. The combustion gases pass through a
cyclone separator and upward through the quench reactor. Nozzles atomize
the lime slurry and inject it upwards into the reactor. The lime slurry1
is 1.5 to 2 percent calcium hydroxide (Ca(OH)2) and is prepared onsite
from hydrated lime. The gases pass from the quench reactor to the inlet'
of the dry venturi where -particles (Tesisorb™). are injected with air to
reduce bag pressure drop and improve collection and bag pressure drop
performance. The exhaust from the venturi.is ducted to a reverse-air FF
that contains fiberglass bags with silicon-graphite/Teflon™ coating. The
FF inlet temperature is about 230°C (440°F), and the air-to-cloth ratio is
0.58 m/min (1.9 ft/min).
The metals testing at Tsushima was conducted as a part of ia •
comprehensive test program to characterize PM, metals, acid gases, and '
organic emissions from the facility. Metals emission rates were measured,
at the inlet to the dry venturi on two runs and at the FF inlet on three
runs. The samples were collected using a Flow Sensor multiclone !
apparatus. Metals concentrations were determined for each stage by AA.
In addition to the metals tests, PM emissions were determined at the dry
venturi inlet, the FF inlet, and the FF outlet using M5. Measurements for
Hg emissions were made for two runs each at the quench reactor inlet and
FF outlet using M101. Analyses for Hg also were performed by AA.
The data in this report were assigned a rating of B.
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4-1.24 Pittsfield, 1985 Test-Phase I (Mass Burn, Refractory)32
The Pittsfield facility .consists of three, 110-Mg/day (120-ton/day),
two-stage, refractory-lined incinerators with.two waste heat boilers, each
with a dedicated EGB precipitator and stack. The facility is designed to
operate two units at a time. An overhead crane transfers the waste onto a
charging floor from which a front-end loader fills the charging hoppers of
the incinerators. Each incinerator has one feed ram and four stoking/ash
rams located at various levels along the grates in the primary chamber.
Each incinerator has a primary chamber where the refuse is burned, with
the hot effluent gases passing into a secondary combustion chamber.
Effluent from the secondary chambers passes into a common collection duct
that splits off to two waste heat boilers.
Gases from each waste heat boiler pass through an ID fan, into an EGB
particulate control device, and to the atmosphere via a stack.
The 1985 tests at Pittsfield consisted of two phases: Phase I to
obtain basic information about plant operations and combustion quality
over a wide range of test conditions, and Phase II to establish facility
parametric relationships among incinerator combustion and operating
variables, refuse quality, suspected precursors, and concentrations of "
various trace compounds including PCDD and PCDF. Only the Phase I results
were completed prior to publication of this volume. Comprehensive process
monitoring and continuous emission monitoring were performed and recorded
on a data logger for subsequent analyses. Three CEM systems were used to
.measure 02, C02, CO, THC, and NOX simultaneously at the secondary chamber
'outlet and at the boiler inlet and outlet locations. Two CEM systems also
were equipped to measure. S02 and H20. Sampling by MM5 to measure PCDD,
PCDF, and their alleged precursors was conducted simultaneously .at the
boiler inlet,and outlet during two of the test conditions. The two
conditions selected were polyvinyl chloride-free material burned at 1010°C
(1850°F) and normal refuse burned at 680°C.-(1250°F) to represent minimum
and maximum PCDD/PCDF concentrations, respectively. Chloride analysis was
conducted on samples collected at these two test conditions and at two
additional conditions. Modified Method 5 sampling and analysis were
performed in accordance with the ASME/EPA protocol using an XAD-2 resin
cartridge and a condenser. Blank trains, surrogate spiking, and recovery
were employed for quality control and quality assurance.
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This report lacks original data sheets and process data; therefore,
the data were given a rating of C.
4.1.25 Cattaraugus County, 1984 Test (Starved Air)33
The Cattaraugus County Energy Facility, located near the village of
Cuba, New York, consists of a tipping floor and three, identical, two-
stage, refractory-lined incinerators followed by fire-tube waste heat
boilers. Each unit has a maximum capacity of 40 tons of refuse per day.
The system has no air pollution control devices. The waste is moved by a
skid loader from the tipping floor to the incinerator feed hopper. The
refuse is fed by hydraulic ram to the incinerator. The combustion gases
discharge through the fire-tube steam boilers to individual 63-foot-high
stacks.
The tests were conducted from September 24 to October 26, 1984, by
the New York State Region 9 source testing team. The incinerator operated
at an average of 94 percent of maximum capacity during the sampling.
Concentrations of the following compounds were measured during the normal
operation of the plant:
Particulate
2,3,7,8-TCDD
2,3,7,8-TCDF
PCDO (tetra-octa)
PCDF (tetra-octa)
Chrysene
PCB
BaP
Formaldehyde
HC1 •
Pb
Hg
Manganese
Zinc
Be •
Cr
Cd
Ni
Vanadium
As
SO 2
NOY
CO
CO z
02
Sampling was carried out with EPA-approved or adaptions of EPA-
approved methods. In addition, the PCDD/PCDF sampling train was designed
by the New York State Department of Environmental Conservation Source
Testing Section and is an adaptation of the train proposed by ASME. This -
MM5 sampling train consisted of a glass-lined probe, a heated glass "
filter, a cooling condenser, a water-cooled glass cartridge containing .
40 grams of XAD-2 resin, and several glass impingers. All sections of the
train were glass, connected by Teflon™ unions. The resin was spiked
4-26
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before sampling with a known quality of isotopically labeled 1,2,3,4-TCDD
to assess loss or breakthrough of PCDD/PCDF from the resin during
sampling. The CDD/PCDF train also was used to sample for the other
organics, except formaldehyde. All sampling was carried out at sampling
ports on the south stack (Unit No. 1).
Because this report lacks the process data needed to calculate an
emission factor, these data were assigned a rating of C.
4.1.26 Dyersburg, 1982 Tests (Starved Air)6
The Dyersburg facility consists of a modular, starved-air incinerator
designed to burn 90 Mg/day (100 tons/day) of refuse. The unit was
manufactured by Consumat and began operation in 1980. There is no add-on
emission control system.
Testing was performed in June 1982 to characterize air emissions
during normal operation at an estimated feed.rate of 45 Mg/day
(50 tons/day) burning approximately 30 percent industrial and 70 percent
municipal waste. Detailed data on process operation were not available.
Comprehensive emission measurements included: (1) PM by M5; (2) particle
size with-an Andersen impactor; (3) particle-phase metals-from
cyclone/filter catch from SASS by XRF (As, Cd, Cr, Hg, Pb, and Ni) and
SSMS (Be only); (4) volatile metals (As, Hg, Pb, et a!) from SASS
impingers with H262 followed by ammonium persulfate/si Tver nitrate
solutions by AA; (5) HC1 and HF by M6 train with NaOH solution in first
two impingers by 1C; (6) polyaromatic hydrocarbons (BaP, et a!.),
2,3',7,8-TCDD/TCDF, total' TCDD/TCDF, and PCDD/PCDF with SASS cyclone,
filter, and XAD-2 resin catch by HRGC/MS; (7) anions in flyash (sulfate,
nitrate, chloride, .bromide, fluoride, and phosphate) with SASS impingers
with distilled water by 1C; and (8) aldehydes (formaldehyde, et al.) with '
an M6 train with HC1, 2,4-dinitrophenyl-hydrazine, and isooctane in the
first two impingers by reverse-phase HPLC. Organic screening analysis to
estimate concentrations of various compounds was performed by HRGC/MS from
aliquots pf the sample extracts, but the reported estimates were not
included in the EPA data base.
The data in this report were assigned a rating of B.
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,28,35
4.1.27 North Little Rock, 1980 Tests (Starved Air)
The North Little Rock facility consists of four, Consumat Model
CS-1200, 23-Mg/day (25-ton/day), modular, starved-air incinerators with
heat recovery. The facility is contracted to produce an average of
6,800 kg/h (15,000 Ib/h) of steam at 150 psi to be delivered 24 hours per
day, 5 days per week. Refuse is combusted in two chambers: the primary
chamber is designed for 690°C (1200°F) operation for substoichiometric
conditions; the secondary chamber is designed for 1000°C (1825°F)
operation through control of primary and secondary air. Two rams in the
primary chamber hearth are cycled'to push residue and break up clinker
formations. A drag chain removes the wetted ash for disposal'. Combustion
gas is cooled to 380°C (600°F) after it passes through the boiler, which
is equipped with five banks of vertical water tubes, there is no add-on
emission control system.
The tests were conducted in March, May, and October 1978.
Particulate matter and heavy metals in particulate form were captured by
the filter of an EPA MM5 train. Heavy metal vapors and other gases were
captured by the impingers in an .EPA M5, M7, or'MS train. Particulate
matter was captured for size distribution analysis by a seven-stage,
vertical cascade impactor. The concentrations of 02, CO, C02, NOX, and
sulfur oxides were monitored continuously.
This report lacked raw data sheets and process information;
therefore, the data were assigned a rating of C.
4.1.28 Prince' Edward Island, 1985 Test (Starved Air)31*
The Prince Edward Island facility uses two-stage, starved-air
combustion of municipal solid waste in combination with waste heat
recovery. The plant comprises three, two-stage, Consumat CS 1600 modular
incinerators, each rated at 33 Mg/d (36 tons/d), with a common exhaust
manifold leading to a single waste heat boiler and economizer and an
exhaust fan and stacks. .Waste is fed to the primary chamber in a batch
mode and 'is moved through the primary chamber by a sequence of water-
cooled hydraulic rams. Low-velocity combustion air enters the lower
portion of the bed in the primary chamber. Combustion gases leave the
primary chamber through a short breeching at the front end of the
secondary chamber. In the secondary chamber, these gases are mixed with
4-28
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preheated secondary combustion air, and combustion is completed. The
combustion gases leave the secondary chamber through the waste heat boiler
and economizer. During the testing, only the gases from incinerator unit
No. 1 were passed through the waste heat boiler. The facility has no
add-on air pollution control system.
The metals testing at Prince Edward Island was.conducted during the
second phase of the test program—the performance, test phase. During the
performance tests, three replicate runs were conducted at each of four
test conditions—normal operation, long feed cycle, high secondary'chamber
temperature, and low secondary chamber temperature. The selection of test
conditions was based on the results of 22 characterization tests conducted
during the first phase. These results indicated that the major variables
that affected operations were secondary chamber temperature, primary '
chamber airflow rate, and refuse loading rate.. The normal operation test
Was selected as a baseline for comparison. During the long cycle tests,
the number of feed cycles was reduced from 8 per hour to 6 per hour with
an increase in mass fired per charge to maintain a constant mass feed
rate. This condition was expected to improve combustion and reduce
demands on the loader operator. The high and low secondary temperature
conditions were achieved by increasing the secondary chamber temperature
set point by 135°C (240°F) and decreasing it by 100°C (180°F) from normal
condition, respectively. The high and low temperature conditions were
selected because the secondary chamber temperatures .appeared to have a
significant impact on organic emissions.
The measurement scheme for each test was complex with a wide variety
of waste, process, and flue gas parameters monitored during each run. The
waste feeds were monitored for metals, .and stack gases were monitored for
both PM and gas-phase metals. A sampling train similar to an M5 with five
impingers was used. The first two impingers contained 5 percent aqua
regia, and the third impinger contained 2 percent KMnO^ in 10 percent
H2.S04 for metal's collection. Metals analyses generally were conducted
with a direct-coupled plasma analyzer. Mercury was analyzed by AA.
Organic pollutants measured at Prince Edward Island included homolog-
specific analyses of PCDD and PCDF, PCB, total polycyclic aromatic
hydrocarbons, chlorophenol, and chlorobenzene. The organic sampling train
4-29
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was" an MM5 train modified as specified by the ASME draft protocol for
PCDD/PCDF. Quantisation of all organics was by gas chromatography/mass
spectroscopy-multiple ion detection (GC/MS-MID).
Acid gas emissions were measured by using a glass-lined probe and a
series of impingers containing caustic solutions. Single-point sampling
was used. Impinger solutions were analyzed by 1C. Pollutants that were
measured were HC1, HF, and S03.
A continuous emission monitoring train was used to measure.stack gas
concentrations of CO, C02, S02, NOX, and THC.
These data were assigned an A rating.
4.1.29 Tuscaloosa. 1985 Test (Starved Air)37
The Tuscaloosa Energy Recovery incinerator facility consists of four,
modular, starved-air municipal refuse incinerators manufactured by
Consumat Systems and installed in 1984. Each incinerator has a rated
capacity of 80"Mg/d (90 tons/d) and typically operates 24 hours per day,
5 days per week. Exhaust from the four incinerators is fed through two
heat recovery boilers to produce 24,900 kg (55,000 Ib) of steam per
hour. Approximately 99 percent of the refuse incinerated is from residen-
tial sources, and the remaining 1 percent consists'of scrap tires.
Temperature in the primary chamber of each incinerator is maintained
between 540° and 760°C (1000° and 1400°F). Secondary chamber temperatures
typically are 1150°C (2100°-F).
Particulate matter emissions are controlled by an ESP manufactured by
Precipitair Pollution Control. Exhaust from the four incinerators is
routed through the ESP prior to exiting through a single stack. An ID fan
is located after the ESP and before the stack.
All tests were conducted while the four incinerator modules were
operating normally at approximately 90 percent of capacity. Lower and
upper chamber temperatures were monitored and controlled to operate in the
typical ranges of 530° to 650°C (980° to 1200°F) and 1130° to 1160°C
(2080° to 212p°F), respectively. Controlled emission results were'not
'considered representative because (1) ESP power levels were not steady and
were substantially less than the design level and (2) excessive air
inleakage at the ID fan flange occurred throughout most of the test
period. Uncontrolled and controlled emission testing included PM by M5,
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NO,
by M7, inorganic As by M108, Cr+s by digesting M5 filters in an
alkaline solution with analysis by the diphenylcarbazide colorimetric
method, and particle sizing with an Andersen Mark III impactor and an
Andersen heavy grain loading impactor/cyclone.
These data were assigned an A rating.
4.1.30 Barron County, 1985 Test (Starved Air)38
The Barron County waste-to-energy facility consists of two Consumat
Model No. CS-1600 incinerators. Each incinerator has a rated capacity of
45 Mg/d (50 tons/d) and is equipped with a heat recovery boiler featuring
an economizer. The boilers have a nominal steam output of 4,500 kg/h
(10,000 Ib/h) at 4,100 kPa (600 pst) each. Secondary chamber temperatures
are maintained above 820°C (1500°F).
Emissions are controlled by a two-chamber, two-stage ESP.
During the test, the incinerators were firing about 79 Mg/d
(87 tons/d), the boilers were producing about 7,700 kg/h (17,000 Ib/h) of
steam at 3,400 kPa (500 psi), and the ESP's first and second stages were'
energized at 38 .kV and 28 kV, respectively. Controlled emission testing
. was by EPA.M5 for PM. The M5 filters and probe washes were analyzed by AA
for Pb, Cr, Ni, As,.and Cd. The impinger portion of the M5 train was
analyzed for HC1 with a specific ion probe.
These data were assigned a B rating.
4.1i31 Red Wing. 1986 Test (Starved Air)
The-Red Wing MSW incinerator is a twin-unit facility manufactured by
Consumat Systems. The total capacity of 65 Mg/d (72 tons/d) from the two
incinerators produces an average solid waste heating value of 10,500 kj/kg
(4,500 Btu/lb). The combined incinerator flue gases heat one steam boiler
that has a nominal steam output of 8,000 kg/h (17,700 Ib/h) at 1,100 kPa
(150 psig). The bottom ash and ESP ash are combined in the conveyor and
transported to a landfill.
Particulate matter emissions are controlled by an ESP. Exhaust from
the two'incinerators is routed through the ESP prior to exiting through a
single stack. No ESP design .data were provided in the test report.
Controlled emission testing included PM and trace metals by EPA M5;
PCDD and PCDF by MM5; HC1 by caustic impinger; Hg by kMnO^ impingers and
gold amalgamation; and CO, C02', 02, S02, and NOX by CEM. Analysis
, 39_t2
4-31
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included PM by EPA M5, trace metals by ICAPS, PCDD and PCDF by GCIMS, HC1
by EPA 325.2, Hg by cold vapor AAS, CO and C02 by NDIR, 02 by paramagnetic
analyzer, S02 by pulse .fluorescence, and NOX by chemilumiscence.
Because this report lacks the process data necessary to calculate an
emission factor, these data were assigned a rating of C.
4.1.32 Akron, 1981 Test (RDF Fired)8 "
The Akron facility is designed to burn 910 Mg/day (1,000 tons/day) of
RDF in a semisuspension, stoker-grate combustor. Processing of RDF
includes shredding, air classification, and magnetic separation. Emission
control is provided by an ESP. No other information on the process or the
control system was included in the report.
Testing was performed in May 1981 to characterize MWC stack emissions
during normal operation at an estimated feed rate of 550 Mg/day
(600 tons/day). Comprehensive emission measurements included: (1) PM by
M5; (2) particle size with an Andersen impactor; (3) particle-phase metals
from cyclone/filter catch from SASS by XRF (As, Cd, Cr9 Hg, Pb, and Ni)
and SSMS (Be only); (4) volatile metals (As, Hg, Pb, et al.) from SASS
impingers with H202.followed by ammonium persulfate/silver nitrate •
solutions by AA; (5) HC1 and HF by M6 train with NaOH solution in first
two impingers by 1C;. (6) polyaromatic hydrocarbons (BaP, et al.),
2,3,7,8-TCDD/TCDF, total TCDD/TCDF, and PCDD/PCDF with SASS cyclone,
filter, and XAD-2 resin catch by HRGC/MS; (7) anions in flyash (sulfate,
nitrate, chloride, bromide, flouride, and phosphate) with SASS impingers
with distilled water by 1C; and (8) aldehydes (formaldehyde, et al.) with
M6 train with HC1, 2,4-dinitrophenyl-hydrazine, and isooctane in first two
impingers by reverse-phase HPLC. Organic screening analysis to estimate
concentrations of various compounds was performed by HRGC/MS from aliquots
of the sample extracts, but the reported estimates were not included in
•the EPA data base.
The data in this report were assigned a rating of B.
4.1.33 Albany, 1984 Test (RDF Fired)"3
The Albany facility consists of two, identical, 276-Mg/day
(300-ton/day) combustors and 45,000-kg/h (100,000-lb/h) steam
generators. The RDF feed to the plant has been mechanically processed
offsite. Waste processing includes air and magnetic separation of
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noncombustible material followed by shredding to facilitate combustion.
The RDF feed is moved to the incinerator by screw conveyors and fed to the
combustion chambers by two air-blast distributors. The incinerator is a
single-chamber, waterwall unit with a traveling grate stoker for ash
agitation and movement. The heat recovery system includes superheater
tubes, a convection bank, an economizer, and a combustion air preheater.
Particulate matter emissions from the combustion chambers are
controlled by two, identical ESP's. Each ESP has a conventional wire-to-
plate design with three separately energized fields in the direction of
gas flow. Both precipitators discharge into a single stack. Difficulties
with the plate rapping systems were experienced during the test period.
The metals testing .at Albany was conducted as a part of extensive
testing of air emissions from the facility. Three replicate runs were
conducted at each of two replicate test conditions—one with RDF and
natural gas and one with RDF only as fuel. ' Particulate matter sampling
was conducted at the ESP inlet on Unit 8 and at the stack (the combined
exhaust from Units 7 and 8). The inlet sampling was conducted with an M5
tra-in. The train at the.stack was modified by adding 100 ml of 3 M HN03
in the first two impingers for collection of Cd, Cr, Pb,, and Ni. Sampling
at the stack was also conducted for Hg using EPA Method 101A, for As using
M108, and for Be using EPA M104. Analyses for the metals in the M5 train
were conducted by- AA. Other analyses were: Hg—AA, As—cold vapor AA,
and Be—AA.
Organic pollutants measured at the Albany,RDF plant ,were PCDD and
PCDF (including the 2,3,7,8-tetra isomers), BaP, chrysene, PCB, and
formaldehyde. Sampling for PCDD and PCDF was conducted using an ,MM5 train
similar to the train specified in the ASME draft protocol. Teflon™ '
connectors were used to eliminate grease problems. Analyses were
conducted by GC/MS using the New York Department of Health Protocol. The
same type of train was used for sampling BaP, chrysene, and. PCB. Sampling
for formaldehyde was performed with an M6 train modified by using sodium
bisulfite in the midget impingers. Analysis was by colorimetry.
Hydrochloric acid was collected by placing 100 ml of 0.1 N NaOH in
each of the first two impingers of the particulate train. The chloride
concentration in the impinger catch was determined by specific ion
electrode (SIE).
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A continuous emission monitoring system was used to determine stack
gas concentrations of 02 (electrochemical cell) and CO and C02 (NDIR).
Limited continuous monitor data also were presented for NOX (M7) and S02
(methodology was not described).
These data were assigned an A rating.
4.1.34 Hamilton-Wentworth. Ontario, 1984 Tests (RDF Fired)*"*'115
The Hamilton-Wentworth facility consists of two, identical,
272-Mg/day (299-ton/day) combustors and 48,200-kg/h (106,000-lb/h) steam
generators. Municipal waste is mechanically processed onsite and fed into
two Babcock and Wilcox Canada Limited .spreader-stoker boilers. Waste
processing includes shredding, magnetic separation, and transport on
conveyors before the waste is pneumatically spread into the boiler-through
the overfire air ports. Overfire air is supplied through nozzles located
along the upper and lower rear walls, along the front wall below the feed
chutes,- and through slots in the feed chutes. Underfire "air is-supplied
separately through "holes in the traveling grates. Bottom ash is
discharged by the grates into a water quench hopper and trucked to a
landfill. Combustion gas is cooled by the steam boiler and combustion air
preheater to about 310°C (590°F).
The PM emissions from each unit are controlled by a two-field
Wheelabrator Frye ESP. Both precipitators discharge emissions through
separate ID fans and oval flues contained in one circular stack.
The purpose of testing was to examine the effect of MWC operational
variables on PCDD/PCDF emissions. The test program was divided intp four
field tasks: a pretest program, a cold flow study, combustion runs, and
diagnostic tests. The pretest program and cold flow study were
preliminary in nature. The combustion runs-were made to measure boiler
parameters and PCDD/PCDF emissions under different operating conditions in
order to select conditions for the diagnostic tests. These tests were
conducted with various combinations of overfire air ports. Two tests were
run without overfire air port use for each load condition (F/None and
H/None). One test was conducted'under full load with the lower back
overfire air port in use (F/Low back) while two tests were conducted under
half-load conditions (H/Low back). Under full load, four tests were
conducted with both back air ports in use (F/Back), and two tests were
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conducted with both back and lower front overfire air ports in use
(F/Back, low front). These tests were not repeated under half-load
conditions. Each diagnostic test has been averaged separately and
included in the EPA data base. All the'diagnostic tests were conducted on
• Unit 1.
The methodology for trace organic emission sampling included an MM5
train equipped with two adsorbent traps containing Florisil located
between the third and fourth impingers, nickel-plated nozzles, glass
probes, and Teflon" seals throughout the train. Sample
recovery/extraction procedures included sample probe, nozzle, and all
glassware rinses with pentane followed by rinses with methylene
chloride. Analyses for PCDD/PCDF were performed using data from HRGC/MS
analyses. Analysis for ClB's, CIP's, and PCB was by GC using dual
- capillary column separation with dual ECD. Continuous emission monitors
were used to. measure CO, C02, 02, S02, N0y, and THC.
A
The data in this report were rejected because it could not be
determined if"the facility was operating at normal conditions. •
4.1.35 Niagara, 1985 Test (RDF Fired)*6 - • .
The RDF facility located in Niagara Falls, New York, is operated by
the Occidental Chemical Corporation and has two combustors rated at a
total of 1,100 Mg/day (1,200 tons/day). The plant consists of a tipping
floor, bulk storage building, shredders, metal separators, two identical
furnaces with 25-MW steam turbine generators, and ESP's.- The refuse is
moved from the storage building to the shredders by hydraulic rams and a
conveyor. The shredded refuse is conveyed to the ferrous metals
•separation operation by conveyor. After the ferrous metals are removed,
the RDF is fed to the furnaces through surge bins. The fuel is introduced
to the furnaces using air-swept distributors in front'of each furnace.
Particulate matter emissions at the facility are controlled by ESP's.
Sampling at the plant was conducted during May and June 1985 while
Unit 1 operated normally at 75'to 90 percent'of the maximum, steam load.
No process or ESP operating parameters were included in the preliminary
test report. Concentrations of the following compounds'were measured
during the tests:
4-35
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PM
PCDD
PCDF
Chrysene
PCB
BaP
Formaldehyde
HC1
Pb
Hg
Manganese
Zinc
Be
Cr
Cd
Ni
Vanadium
As
S02
NOY
cox
CO 2
02
Sampling,was carried out with EPA-approved or adaptions of EPA/ASME-
approved methods. The PCDD/PCDF sampling train consisted of a glass-lined
probe, a heated glass-fiber filter, a cooling condenser, a water-cooled
glass cartridge containing 40 g of XAD-2 resin, and several glass
impingers. All sections of the train were glass and were connected by
Teflon™ unions. The resin was spiked before sampling with a known
quantity of isotopically labeled 1,2,3,4-TCDO to determine sample
retention efficiency. The same train was also use'd to sample for the
other organics. • .
Because this report lacks the information needed to calculate an
emission factor directly, the data were assigned a C rating.
4.1.36 Wright Patterson Air Force Base, 1980 and 1982 Tests
(RDF Fired)7'28
The Wright Patterson facility has an 11,000-MJ/h (100xl06-Btu/h),
spreader-stoker, waterwall boiler (Detroit Rptograte Stoker Boiler), which
is designed to burn coal for steam production and plant heating. Fuel is
gravity fed through a bin and chute and mechanically spread into the
combustion chamber. Combustion air is preheated by the exhaust gas
through a heat -exchanger. The facility operators were investigating the
possibility of switching from coal to RDF for fuel.
The emission control system consists of a multiclone cyclone followed
by an ESP. • • - '
Tests were conducted in April 1980 to assess PCDD and PCDF emissions
from refuse burning resource recovery facilities.28 The unit was operated
at a 2.1-Mg/h (2.3-ton/h) feed rate (nominal 30 percent capacity level)
burning densified RDF for 1 day. Fuel and ash characteristics and feed
4-36
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rates were determined, and process conditions were monitored. Controlled
PM and organic emissions were determined by MM5. Sampling was
accomplished with a heated filter, cooled XAD-2 sorbent resin trap, and
glass-distilled, HPLC-grade water in an impinger. Analyses were for
2,3,7,8 isomers and total TCDD and TCDF by HRMS/6C. Packed-column
chromotography was used for analysis, identifying TCDD's and TCDF's as
either preelutors or coeluters of the 2,3,7,8 isomers. Reported results
are presented as "maximum 2,3,7,8" TCDD and TCDF concentrations because of
the inclusion of coeluting isomers. •
Tests-were also conducted in June 1982 to evaluate measurement
methods for sampling chlorinated hydrocarbons, gaseous HC1, and
particulate chloride.7 The unit was operated at a feed rate of 8.5 Mg/h
(9.4 tons/h) and burned RDF during the test period. During the night, the
unit was cofired with coal to conserve the RDF. Process conditions were
not reported. Organic compounds were sampled using an MM5 train with
glass beads in the first two impingers and an XAD-2 sorbent resin (60 g)
cartridge located between the third and fourth impingers. Organic
compound analysis was performed with HRGC/HRM.S to measure (1) tetra-
through octa-PCDD and PCDF homologs;. (2) di- through hexa-ClB homologs;
(3) tri- through penta-ClP homologs; and (4) tri- through hexa-PCB.
Measurements for HC1 were by an M6 train with NaOH in all four impingers
and also, by an M5 train with NaOH in the first two impingers. Analysis
for HC1 was by the mercuric nitrate method modified by treating the sample
with H202.
This report lacked raw data sheets and significant process
information; therefore, the data were assigned a C rating.
4.1.37 Supplementary Data -
The supplementary data listed in SI units in Tables 7-56 through 7-58°
and in English units in Tables 7-114 through 7-116 lack documentation of
incinerator operations and/or test methodologies. .These data were rated
either C or D. The data from Beveren, Milan I, Milan II, Issy~Les-
Moulineaux, and Saint-Ouen were rejected because they represent emissions
after a control device where the type of control device is not
specified.
4-37
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4.2 RESULTS OF DATA ANALYSIS
4.2.1 Total Particulate Matter Emissions Data
Both uncontrolled and controlled partleulate matter emission factors
were determined from the data contained in the reports described above.
In the case of uncontrolled emissions, the reports from Baltimore
(May 1985), Braintree, Gallatin, Kure, Munich, Malmo, Tsushima, Dyersburg,
Prince Edward Island, TuscaToosa, and Albany contained data that were
rated either A or B. For controlled processes, reports from Baltimore
(January 1985 and May 1985)-, Braintree, Hampton (1981 and 1982), Tulsa,
Gallatin, Kure, Munich, Malmo, Wurzburg, Marion County, Tsushima, Barren
County, Tuscaloosa, Akron, and Albany contained data that were rated
either A or B. The emission factors derived from these reports are
prsented in SI units in Table 7-13 and in English units in Tables 7-71.
Summaries of these emission factors are presented in SI units in
Table 7-16a and in English units in Table 7-74a. •
4'.2.2 Particle Size Data
Both uncontrolled and controlled particle size data were contained in
the reports described above. The reports from Baltimore (May 1985),
Braintree, Gallatin, "Kure,. Munich, Tsushima, Dyersburg, Prince Edward
Island, and Tuscaloosa present uncontrolled particle size data. The
reports from Baltimore (May 1985), Braintree, Hampton (1982), Gallatin,
Munich, Tsushima, Tuscaloosa and Akron present controlled particle size
data. The emission factors derived from these reports are presented in SI
units in Table 7-13a and in English units in Table 7-71a.
4.2.3 Other Criteria Pollutant Emissions Data
4.2.3.1 Volatile Organic Compounds. Controlled VOC emission factors
were determined using, the data in the reports from Tulsa, Marion County,
Gallatin, and Kure. No data were available to develop emission factors
for uncontrolled VOC's. The emission factors derived from these reports
are presented in SI units in Table 7-13b and in English units ip
Table 7-71b. Summaries of the emission factors in SI units are presented
in Table 7-16a and in English units in Table 7-74a.
4.2.3.2 Lead. Controlled Pb emission factors were determined from
the data, contained in the reports from Braintree, Hampton (1982), TuTsa,
Munich, Malmo, Wurzburg, Marion County, Tsushima, Barren County, Akron,
4-38
-------
and Albany. Uncontrolled Pb emission factors were determined from the
data contained in the reports from Braintree, Gallatin, Kure, Malmo,
Tsushima, Prince Edward Island, and Dyersburg. The emission factors
derived from these reports are presented in SI units in Table 7-21 and in
English units in Table 7-79. Summaries of the emission factors in SI
units are presented in Table 7-23a and in English units in Table 7-81a.
4-2'3-3 Sulfur Dioxide, Oxides of Nitrogen, and Carbon Monoxide.
Data for determining uncontrolled emission factors for S02 were taken from
the reports for Gallatin, Kure, Munich, Tsushima, and Prince Edward
Island. Uncontrolled emissions data for NOX were taken from the reports
for Gallatin, Kure, and Prince Edward Island; and for CO from reports for
Chicago NW, Kure, and Prince Edward Island. Controlled emissions data
used to determine emission factors were provided in the following
reports:
S02: Baltimore (January 1985), Braintree, Tulsa, Gallatin, Kure,
Wurzburg, Marion County, Tsushima, and Albany;
NOX: Baltimore (January 1985), Braintree, Tulsa, Wurzburg, Maripn
County, Tsushima, Tuscaloosa, and Albany; and
CO: Baltimore (January 1985), Braintree, Chicago NW, Tulsa,
Gallatin, Malmo, Wurzburg, Marion County, Barren County, and and Albany.
Tables 7-14 through 7-16 present the emission factors in SI units for the
pollutants listed above. Tables 7-72 through 7-74 present the emission '
factors in English units for the pollutants listed'above. Summaries of
the emission factors for CO, S02, and NOX can be found in SI units in
Table 7-16a and in English units in Table 7-74a.
4«2.4 Noncriteria Pollutant Emissions Data
4.2.4.1 Acid Gases. Reports for Gallatin, Kure, and Munich
contained data for uncontrolled and controlled' H2SO* data. Reports from
Tulsa, Hampton (1982), Kure, Tsushima, and Akron contain controlled data
for HF while reports from Gallatin, Kure, Tsushima, Dyersburg, and Prince
Edward Island contain uncontrolled data for HF. Controlled HC1 data were
taken from reports for Hampton (1981 and .1982), Tulsa, Kure, Munich,
Malmo, Wruzburg, Marion County, Tsushima, Barren County, Akron, and
Albany. Uncontrolled HC1 data were taken from reports for Gallatin, Kure,
Munich, Malmo, Tsushima, Dyersburg, and Prince Edward Island. Tables 7-24
4-39
-------
through 7-26 present emission factors SI units for the acid gases listed
above. Tables 7-82 through 7-84 present emission factors in English units
for the acid gases listed above. Summaries of the emission factors for
HC1, HF, and HaSO^ can be'found in SI units in Table 7-26a and in English
units in Table 7-84a.
4.2.4.2 Toxic Organics. Emission factors for various furan and dioxin
•isomers were calculated from data, in the reports for Chicago NW, Hampton
(1981, 1982, 1983, and 1984), Tulsa, Wurzburg, Marion County, Dyersburg,
Prince Edward Island, Akron, and Albany. The emission factors for dioxins
. are presented in SI units in Tables.7-27 through 7-34 and in English units
in Tables 7-85 through 7-92. Summaries of these emission factors are
presented in SI units in Tables 7-39 through 7-46-and in English units in
Tables 7-97 through 7-104. Summaries of these emission factors are
presented in SI units in Tables 7-46a and in English units in
Table 7-104..
4.2.4.3 Noncriteria Metals. Emission factors for noncriteria metals
(As, Be, Cd, Cr, Hg, and Ni) were developed. Controlled emission factors
for all six noncriteria metals were-developed from the following
•reports: Hampton (1982), Braintree (except Ni), Munich (except Hg),
Tsushina, Wurzburg (except Be and Hg), Albany, Akron (except Be), and
Barren County (except Be, Hg, and Ni). Controlled emission factors were
also in the reports from Baltimore May 1985 (As and Cr), Chicago NW (Cd),
Tulsa (Be and Hg), Malmo (Cd and Hg), Marion County (Be and Hg), and
Tuscaloosa (As and Cr). Uncontrolled emission factors for all six
noncriteria metals were developed from the following reports: Braintree
(except Ni), Gallatin, Kure (except Be), Tsushima,- Dyersburg, and Prince
Edward Island (except Be). Uncontrolled emission factors were also in the
reports for Baltimore May 1985 (As and Cr), Malmo (Cd and Hg), and
Tuscaloosa (As and Cr). The emission factors for those noncriteria metals
are presented in SI units in Tables 7-17 through 7-20, 7-22, and 7-23 and
in English units in Tables 7-75 through 7-78, 7-80, and 7-81. Summaries
of these emission factors are presented in SI units.in Table 7-23a and in
English units in Table 7-81a.
4-40
-------
4.3 PROTOCOL FOR DATA BASE
4.3.1 Engineering Methodology
A thorough review of 36 test reports from U.S. and foreign MWC's was
performed to establish a data base for four classes of pollutants:
criteria pollutants, acid gases, metals,- and organic compounds. Data log
forms were created to document and facilitate transfer of reported
emission and process information to pollutant-specific data base files
created using dBase III®, a data base management software package, on an
IBM-compatible personal computer (PC). A PC program was written to
perform most of the calculations-and present the results in a consistent
and comparable format. Pollutant-specific tables were generated by the
computer to (1) list results for uncontrolled and controlled emission
levels and collection efficiency, (2) present emission results in a
concentration format (pollutant mass per unit volume) and as an emission
factor (EF) in pollutant mass per mass of waste feed, (3) identify the
•treated facility by name and type, and (4) present separate tables for
standard international (SI) and English units. The sections below briefly
describe the methodology and rationale used to develop the data base files
and programs.
The emission data documented on the data log forms (example forms are
included as Supplement B) were averaged as the arithmetic mean of different
sampling runs prior to inclusion in the PC data base. Test programs at
most facilities,consisted of three to six sampling runs conducted during
distinct operating conditions; groups of runs at the distinct conditions
were treated as separate tests. Separate results from multiple test
programs or test conditions were reported for the following facilities:
Hamilton-Wentworth, Hampton, Malmo, McKay Bay, Philadelphia, Prince Edward -
'Island, Quebec, Umea, and WPAFB. Tests at the Hamilton-Wentworth MWC were
performed and reported for six different operating conditions based on
load and air distributions. Tests conducted four different times in as
many years were reported individually for the Hampton MWC. Distinct tests
at Malmo were performed while firing normal refuse and RDF and reported
separately. At McKay Bay, tests were conducted and results reported on
Unit 1, Unit 2, Unit 3, and Unit 4. Tests were conducted and results
reported on Unit 1 and Unit 2 at the Philadelphia Northwest MWC. The
4-41
-------
comprehensive tests at Prince Edward Island were conducted during four
distinct and controlled operating conditions: normal operation, long feed
cycle operation, high secondary chamber temperature, and low secondary
chamber temperature. Tests at the Quebec MWC were performed and reported
for four different conditions using a slipstream controlled by a pilot-
scale WSH/DI/FF and two different conditions using a slipstream controlled
by pilot-scale SD/FF. Tests conducted during the fall of 1984 and spring
of 1985 at the Umea MWC were reported individually. At WPAFB, tests were
conducted on two occasions and reported separately.
Due to the variety of formats used to report units of measure at
different MWC facilities, the emission data required some preprocessing to
standardize the units of measure prior to computer calculation of emission
concentration levels and EF's. Particulate and metals data reported in
10 different units were manually converted to mg/dscm or gr/dscf and
corrected to 12 percent C02. The results were used to calculate EF's in
units of pg/Mg and Ib/ton and emissions of metals as particulate fractions
in units of pollutant mass per particulate mass. Computerized preprocess-
ing was possible with the data bases for acid gases, criteria pollutants,
and organic compounds because the variety of measurement units was
limited. The list of conversion factors used in the data base preprocess-
ing is included as Table 4-1.
In the acid gases and criteria pollutants data bases, some pre-
processing required simple calculations in addition to unit conversions.
If the"pollutants-specific data, Dl, were reported in ng/dscm corrected to
12 percent C02 in the test report, the following calculation
DI=Dlx(percent concentration of C02)/12
was performed in the preprocessing portion of the PC program ACALC to
present the "uncorrected" value in the resulting table. When the data,
Dl, were reported in ng/dscf in the test report, the conversion
Dl=Dlx35.31
was required to present Dl as ng/dscm. Acid gas and criteria pollutant
data were presented in ppmdv corrected to 12 percent C02. In order to
4-42
-------
TABLE 4-1. LIST OF CONVERSION FACTORS
Multiply
mg/Nm3a
2
It)
m /min
m/s
kg/h
kPa
1pm
kg/Mg
By
4.37x10-"
10.764
35.31
3.281
2.205
4.0
0.264
2.0
To obtain
gr/dscfb
ft2
ft /min
ft/s •
Ib/h
in. of H20
gal /min
Ib/ton
Temperature conversion equations
°F=(9/5)*°C+32
°C=(5/9)*(°F-32)
Normal conditions on a dry basis are 1 atm and 20°C,
Dry standard conditions are 1 atm and 68°F.
4-43
-------
convert data, Dl, from mg/dscm corrected to 12 percent C02 to ppmdv at
12 percent C02, the relation
Dl=Dlx(1000x0.02404)/(molecular weight of pollutant)
was employed.
Calculation of'EF's was performed using conversion factors (CF's) to
relate process'conditions to emission concentration levels. The CF's were
calculated manually for each facility that provided percent concentration
'of C02, process feed rate, and stack gas flow measurements. The EF's in
10" Ib/ton were, calculated using the "corrected" concentration data in
.-10
English units, El in 10'
gr/dscf, and the following equation
EF=CFxEl
where
CF =
(Percent concentration of C02)(stack gas flow in dscfm)(7.14xlO
Process rate in ton/h
The EF's in yg/Mg were then calculated using
-10
EF in yg/Mg=(EF in 10~ Ib/ton)x0.05
In order to calculate EF's from data presented in ppmdv at 12 percent C02,
a second conversion factor, CCF, was needed. CCF was defined as
CCF = (molecular weight of pol1utantUl.3xlO"8UCF)
(7.14x10'*)
An EF value may be calculated from
EF in Ib/ton feed=(Dl in ppmdv @ 12 percent C02)(CCF).
Because test periods were nonsimultaneous, CF values for some facilities
were different for the various pollutants. Table 4-2 presents the values
for CF, C02, stack gas flow rate, and process feed rate that were used in
the data base for emission calculations. Determinations of EF's were made
only when process feed rates were documented or derivable from plant
records of refuse process rates and steam flow rates. Discrepancies (±15
percent) in ,EF calculations can result from interpretation of process
conditions during sampling periods and data averaging techniques. To
reduce these potential discrepencies, EF values were taken directly from
the test report whenever possible.
4-44
-------
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Quality control and quality assurance procedures'were used to assure
that the data base accurately reflected the reported test data. Each data
.log form was checked by a second person to assure documentation of
reported emission and process data prior to development of the computer
data base. The data log forms provided the structure for the PC data base
files and quality check. After emission tables were generated, a final
comparison was made between randomly selected test reports, their
associated data log form, and the produced emission table to assure the
quality of" the data acquisition and the associated calculations.
4.3.2 Computer Programming Methodology
The dBase III® programs initially were modified and titled in a
pollutant-specific fashion; these gradually were developed into a more
generalized format to allow for improved quality control and consistant
data manipulation. The programs were written in a modular fashion with a
main procedure, MAINRPT, calling several subroutines. These subroutines
were designed to (1) conduct the preprocessing, correction "to 12.percent
C02, emission percentage, and EF calculations; (2) print the table heading
and column identifications; (3) print the facility type, name, control
device type, and test condition; and (4) print the emission data and
calculation results.
The data base files remained pollutant-specific to check test reports
known to have measured these pollutants. These files are presented in
Table 4-3. These data files were used in their associated computer
programs to generate the pollutant-specific tables as shown in
Table 4-4. These .programs required simple modifications prior to
producing desired tables. These modifications included selecting desired
table number, desired data type, and altering the field name used in the
program to reflect this data type.
4-47
-------
TABLE 4-3. DATA FILES
Name
Contents
DATAEMIS
DATACID
COS02
NEWORG
DATAORG
ORGSITE
TOTFAC
COTAB
ESP
DSFF
Particulate and metals emissions
Acid gas data
Criteria pollutant data ' •
Organic data: total measured penta's, hexa's hepta's,
octa's, benzene, benzo-a-pyrene, chlorinated phenols,
and chlorinated benzenes
Organic data: 2,3,7,8-tetra's, total tetra's, and .
tetra- through octa's
Facility type, name, control device, test condition,
and reference number
Percent C02 concentration, stack gas flow, process
rate, and CF
Collection efficiency, temperatures, and flow rates
ESP design and operating conditions data
DS and FF design and operating conditions data
4-48
-------
Name
PARTI C
METALS .
ACID
ACID
ORGNEW
OR6
TOTALD
TOTALF
BEN
CONTAB
CONTAB1
CONTAB2
CONTAB3
CONTAB4
CONTAB 5
TABLE 4-4.
. Input data file
DATAEMIS
DATAEMIS
DATACID
COS02
NEWORG
DATAORG
NEWORG
NEWORG
NEWORG
ESP
DSFF
DSFF
ESP
DSFF
DSFF
SUMMARY OF PROGRAMS
Tables produced
Part icu late
Metals
Acid gases
Criteria pollutants
Total penta's, hexa's, hepta's,
octa's
2,3,7, 8-tetra's, total tetra's,
tetra-through octa's
Total measured PCDD
Total measured PCDF
and
and
Benzo-a-pyrene, total chlorinated
benzene and phenol , and benzene
ESP design specifications
DS/FF design specifications
FF or scrubber design specifications
ESP operating conditions
DS/FF operating conditions
FF or scrubber ooeratina conditii
ons
4-49
-------
-------
4.4 REFERENCES FOR CHAPTER 4
1.
5.
PEI Associates, Inc. Emission Test Report - Baltimore RESCO
Incinerator, Baltimore, Maryland. Prepared for U.S. Environmental
Protection Agency, Emissions Measurements Branch, Research Triangle
Park, N.C. July 1985. (Draft—Pending Determination and Final
Metals Analyses).
Entropy Environmentalists, Inc. Stationary Source Sampling Report
(Baltimore Resco Company L. P., Southwest Resource Recovery facility
Baltimore, Maryland). Performed for RUST International Corp.
January 1985.
II
Midwest Research Institute. Environmental Assessment of a
Waste-to-Energy Process - Braintree Municipal Incinerator. Prepared
for U.S. Environmental Protection Agency, Industrial Environmental
Research Laboratory, Cincinnati, Ohio. April 1979.
Haile, C. L., et al. Comprehensive Assessment of the Specific
Compounds Present in Combustion Processes, Volume I— Pilot Study of
Combustion Emissions Variability (Chicago, Illinois MWC) . Prepared
£°,r, U. S. Environmental Protection Agency Office of Toxic Substances
rL ™st Research Institute. Washington, D. C. Publication No.
EPA| 560/5-83-004. June 1983.
Haile, C. L., et al. Assessment of Emissions of Specific Compounds
, From a Resource Recovery Municipal Refuse Incinerator (Hampton,
I Virginia). EPA-560/5-84-002. June 1984. .
6. Scott Environmental Services. Sampling and Analysis of Chlorinated
,0rgamc Emissions From the Hampton Waste-to-Energy System. Prepared
for The Bionetics Corporation. May 1985.
7. Nunn, A. B., III. Evaluation of HC1 and Chlorinated Organic Compound
Emissions From Refuse Fired Waste-to-Energy Systems (Hampton,
Virginia; and Wright-Patterson Air Force Base, Ohio). Prepared for-
j U.S. EPA/HWERL by Scott Environmental Services. 1983.
8. Howes, J. E., etal. Characterization of Stack Emissions From
Municipal Refuse-to-Energy Systems (Hampton, Virginia; Dyersburq,
: Tennessee; and Akron, Ohio). Prepared by Battelle Columbus
Laboratories for U. S. Environmental 'Protection Agency/Environmental
Sciences Research Labortory. 1982.
9.' SeeTinger, R., et al. Environmental Test Report (Walter B. Hall
Resource Recovery-Facility, Tulsa, Oklahoma). 'Prepared by Ogden
Projects, Inc., for Tulsa City County Health Department.
October 1986.
10. New York State Department of Environmental Conservation. Emission
Source Test Report - Preliminary Test'Report on Westchester RESCO.
January 8, 1986.
4-50
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11. Hahn, J. L. Air Emissions Tests of Solid Waste Combustion in a
Rotary Combustion/Boiler System at Gallatin, Tennessee. Cooper
Engineers. July 1984.
12. Cooper and Clark Consulting Engineers. Air Emissions Tests of Solid
Waste Combustion in a Rotary Combustor/Boiler System at Kure,
Japan. Prepared for West County Agency of Contra Costa County.
California. June 1981.
13. Hahn, J. L., et al. Air Emissions Tests of a Deutsche Babcock
Anlagen Dry Scrubber System at the Munich North Refuse-Fired Power
Plant. Presented at the 78th Annual Meeting of the Air Pollution
Control Association. June 1985.
i
14. Flakt Canada, Ltd., and Environment Canada. The National Incinerator
Testing and 'Evaluation Program: Air Pollution Control Technology.
Report EPS 3/UP/2. September 1986.
15. Swedish Environmental Protection Agency. Operational Studies at the
SYSAV Energy From Waste Plant in Malmo, Sweden. Publication No.
SNV'PM 1807. iJune 1983.
'. I' '
16. -Matin, J. L. 'Preliminary Report—Air Emission Testing at the Martin
GMBH Waste-to-Energy Facility in ;Wurzburg, West Germany. Prepared by
Cooper Engineers for Martin GMBH. January 1986.
17. Zurlinden, Ronald A., et al. Environmental Test Report (Marion
County, (Oregon, Solid Waste-to-Energy). Prepared by Ogden Projects,
Inc. November 1986.
18. Clean Air Engineering, Inc. Report on the Precipitator Performance
Testing (McKay Bay Refuse to Energy Project). Conducted for
F. L. Smidth and Company. October 7, 1985.
19. Clean Air Engineering, Inc. Summary on NOX Testing Conducted for:
Waste Management, Inc. February 6, 1986.
20. Environmental Engineering Consultants, Inc. Emissions Test Report
McKay Bay Refuse to Energy Plant. August 1986. Prepared for Tampa
Waste Management Energy Systems. October 20, 1986.
• i
21. Radian Corporation. Final Emissions Test Report, Dioxins/Furans and
Total Organic Chlorides Emissions Testing. North Andover Resource
Recovery Facility, North Andover, Massachusetts. November 14, 1986.
22. Jamgochian, C. L., et al. Municipal Waste Combustion Multipollutant
Study Emission Test Report, Volume 1—Summary of Results,
Volume 2—Appendices A-D, Volume 3~Appendices E-L (North Andover,
Massachusetts, MWC). Prepared for U. S. Environmental Protection
Agency,, Emissions Measurement Branch of the Emissions Standards and
Engineering Division by Radian Corp. Research Triangle Park, North
Carolina. EMB Report No. 86-MIN-02. April 1987.
4-51
-------
23. Radian Corporation. Final Emissions Test Report, Dioxins/Furans and
Total Organic Chlorides Emissions Testing. Saugus Resource Recovery
Facility, Saugus, Massachusetts. October 2, 1986.
24. Marklund, S., et al. Determination of PCDD's and PCDF's in
Incineration Samples and Pyrolytic Products. Presented at ALS
National Meeting, Miami, Florida. April 1987.
25. Neulicht, R. Emission Test Report: City of Philadelphia Northwest
and East Central Municipal Incinerators. Prepared for U. S.
Environmental Protection Agency/Region III by Midwest Research
Institute. October 1985.
26.
27.
28.
29.
30.
31
32.
33.
Greenberg, R. R., et al. Composition and Size Distributions of
Particles Released"in Refuse Incineration (Alexandria, Virginia, and
Washington, D.C., MWC units). Environmental Science and Technology.
1978. p. 566.
Greenberg, R. R. A Study of Trace Elements On Particles From
Municipal Incinerators (Alexandria, Virginia; Washington, D. C.; and
East Chicago, Indiana). University of Maryland, Doctoral Thesis,
X*7 / 0 » ,
Higgins, G. M. An Evaluation of Trace Organic Emissions From Refuse
Thermal Processing Facilities (North Little Rock, Arkansas; Mayport
Naval Station, Florida; and Wright Patterson Air Force Base, Ohio) -
Prepared for U.S. Environmental Protection Agency/Office of Solid
Waste by Systech Corporation. July 1982.
Systech Corporation. Test and Evaluation of the Heat Recovery
Incinerator System at Naval Station, Mayport, Florida. Prepared for
Civil Engineering Laboratory, Naval Construction Battalion Center
Port Hueneme, California. Report CR.012. May 1981.
Jacko, R. B., and D. W. Neuendof. Trace Metal Particulate Emission
Test Results From a Number of Industrial and Municipal Point Sources
(for East Chicago, Indiana MWC unit). APCA Journal. Volume 27
No. 10. October 1977. p. 989.
Hahn, J. L. Air Emissions and Performance Testing of a Dry Scrubber
(Quench Reactor) Dry Venturi and Fabric Filter System Operating on
Flue Gas From Combustion of Municipal Solid Waste in (Tsushima)
Japan. Prepared for California Air Resources Board by Cooper
Engineers. July 1985.
Visalli, J. R,, et al. Pittsfield Incinerator Research Project-
Status and Summary of Phase I Report. Presented at 12th Biennial
National Waste Processing Conference, Denver, Colorado. June 1986.
New York Department of Environmental Conservation. Emission Source
Test Report—Preliminary Report on Cattaraugus County ERF. August -
1986.
4-52
-------
34. Systems Technology Corp. Small Modular Incinerator Systems with Heat
Recovery, A Technical, Environmental, and Economic Evaluation.
Prepared for U. S. Environmental Protection Agency/Office of Solid
Waste. Report SW177c. November 1979.
35. Environment Canada. The National Incinerator Testing and Evaluation
Program: Two Stage Combustion (Prince Edward Island). Report
EPS 3/UP/l. September 1985.
36. PEI Associates, Inc. Emission Test Report - Tuscaloosa Energy
Recovery, Tuscaloosa, Alabama. Prepared for U. S. Environmental
Protection Agency/Emissions Measurements Branch, Research Triangle
Park, North Carolina. July 1985.
37. PEI Associates, Inc. Chromium Screening Study Test Report.
Municipal Incinerator, Tuscaloosa, Alabama. Prepared for U. S.
Environmental Protection Agency/Emission Measurement Branch, Research
Triangle Park, North Carolina. EMB Report 85-CHM-9. January 1986.
38. Perez, J. Review of Stack Test Performed at Barron County
Incinerator. State of Wisconsin Correspondence/Memorandum.
February 1987.
'39. Cal Recovery Systems, Inc. Final Report, Evaluation of Municipal
Solid Waste Incineration (Red Wing, Minnesota, facility). Submitted
to Minnesota Pollution Control Agency. Report No. 1130-87-1.
January 1987. . .
40. Bordson, D. Report on the Completion of the Red Wing Municipal Solid
Waste (MSW) Incineration Evaluation Study. March 12, 1987.
•41. Kalitowski, T. J. Status Report on Solid Waste Incineration in
Minnesota. Office Memorandum. March 18, 1987.
42. Kalitowski, T. J. Addendum to March 18, 1987, Status Report on Solid
Waste Incineration in Minnesota Memorandum. Office Memorandum.
March 30, 1987. .
43. Kerr, R., et al. Emission Source Test Report—Sheridan Avenue RDF
Plant, Answers (Albany, New York). Division of Air Resources, New
York State Department of Environmental Conservation. August 1985.
44. Ozvacic, V., et al. Determination of Chlorinated Dibenzo-p-Dioxins,
Dibenzofurans, Chlorinated Biphenyls, Chlorobenzenes, and
Chlorophenols in Air Emissions and Other Process Streams at SWARU in
Hamilton. Prepared for Ministry of Environment by Ontario .Research
Foundation. December 1983.
45. Complin, P. G. Report on the Combustion Testing Program at the SWARU
Plant, Hamilton-Wentworth. Prepared for Ministry of the Environment
by Envirocon Limited. January 1984. '
4-53
-------
46. New York State Department of Environmental Conservation. Emission
Source Test Report—Preliminary Report on Occidental Chemical
Corporation EFW. January 16, 1986.
4-54
-------
-------
5. SAMPLING AND ANALYSIS PROTOCOL
The purpose of this chapter is to provide a brief description of the
sampling and analysis (S&A) methodologies that were used to generate the
emission data presented in Chapter 7. Because S&A methods were not the
same for all tests, a direct comparison of the data from different tests
is difficult. This chapter is designed to illustrate the variety of S&A
methods associated with the emission test data and to facilitate an
evaluation of the comparative quality and accuracy of those data. The S&A
methodologies for each test are -identified and described in Tables 5-1 and
5-2. Table 5-1 summarizes the S&A methodologies for the criteria1
pollutants, acid gases,' and organics. Table 5-2 summarizes the
methodologies for the metals. Acronyms and abbreviations are listed in
Supplement A. Additional information on recommended S&A methodologies is
contained in another report entitled Municipal Waste Combustion Study:
Sampling and Analysis of Municipal Waste Combustors (EPA/530-SW-87-021F).
The S&A methodo-logies used in the tests to measure the Criteria
pollutants are more uniform than those used for other categories because
EPA reference methods for criteria pollutants are well defined,, and those
methods generally were used for'the reported test programs. The detailed
test procedures for EPA reference methods are found in 40 CFR, Part 60,
Appendix A. Only two facilities of those listed in Table 5-1 used a non-
EPA test method for determining PM emissions. The test conducted at Malmo
utilized a quartz FF, and the test conducted at Hamilton-Wentworth
utilized an isojet sampler with a tared filter'bag for the collection of
the PM. The other facilities were tested using the standard EPA M5,
sometimes with minor modifications as indicated. Tests were conducted at
22 facilities using M5, at 4 facilities using M5 in combination with MS,
and at 1 facility using M5, M8, and M17.
5-1
-------
At most test sites, CO levels were monitored continuously, in most
cases using NDIR. The actual method was unspecified at several sites.
The testing methodology for S02 levels reported at 19 sites -included EPA
Method 5, 6, 8, or 13, and combinations of these, as noted in Table 5-1.
Four sites also reported continuous monitoring of S02 using ultraviolet
detection methods. The test report for Kure also indicated that S02 was
verified by the Chronoamperometric Detection Method, and the report for
Mayport indicated that S02 and NOX were measured by electrochemical
detection methods. In six tests, NOX levels were measured continuously
using the chemilumenescence method, and in two tests, M7E was utilized.
Method 7 was used at the Tuscaloosa and Albany tests.' Nitrogen oxide
levels were measured continuously at three other sites for which the
reports did not describe the test methods.
Test methods for THC were more varied. Four'tests used 6C/FID for
continuous monitoring, while three tests utilized FID. At three other
test sites, California Air Resources Board Method 100, charcoal tubes and
metal gas bombs, and absorption tubes containing Tenax™ GC were used. In
the last two cases, analysis was by GC/FID. At four test sites, the
testing methodology was not described. .
Acid gases (HC1, HF, and H2SO^) were all tested by a variety of S&A
methods. For several tests, EPA Method 5, 6, 8, ISA, or 17 and
combinations of these were used. The S&A methodologies and modifications
used are described in Table 5-1.
The same general S&A procedures were used for the organics tests.
Sampling was isokine.tic; a filter was used to capture particle-phase
organics, and some type of resin was used to absorb the gas-phase
organics. The ASME draft protocol for dioxins or some other modification
of the EPA M5 train typically was used, and analysis was performed by
GC/MS. The S&A methodology for testing organics is evolving. In the .
past, Florisil and Tenax™ had been used as the sorbents for collecting
semivolatile and nonvolatile organics. The ASME draft protocol for
semivolatile and nonvolatile organics established in December 1984
standardized both S&A procedures using an MM5 train and XAD-2 resin as the
sorbent. The actual test reports should be consulted for information
about specific differences in the S&A protocols at different sites.
5-2
-------
In general, the same S&A protocol was used to test for all the metals
at a given site. However, in some tests a different S&A methodology was
used for some of the metals, especially for those metals for which EPA
test methods are specified. At the Tulsa test, M12 and M104, modified by
combining the probe rinse and impinger liquid, were used to test for Be
and Pb, and M101A was used to test for Hg. The test at Albany also used
M108 to test for As; M101 or M101A was used to test for Hg at the Gallatin
and Tsushima facilities.
Several facilities also were tested using identical S&A protocols.
The metals tests at Gallatin, Munich, Wurzburg, and Tsushima were all
performed using a Flow Sensor sampling system with analysis by AA, except
where different methods for Hg are noted. The tests at Washington, D.C.;
Alexandria; and Nicosia also followed the same S&A methodology (MM5 train
' with analysis by instrumental neutron activation [INA]). The tests at
Hampton (1982), Dyersburg, and Akron were all performed by analyzing the
SASS train particulate and volatile metals catch by XRF and SSMS.
In 14 of the tests, an M5'or MM5 sampling train was used.
Modifications of the M5 train included using an in-stack filter
(Washington, D.C.; Alexandria; and Nicosia), using aqua regia in the first
two impingers and KMnO., in HaSCU in .the third impinger (Prince Edward
Island)', and using nitric acid in the first two impingers (Albany). The
test at Braintree used both M5 and SASS trains. Four tests (three
performed by Copper Engineering, Inc.) used Flow Sensor multiclone
sampling systems, and two facilities (Tulsa and Malmo).used other
methodologies as noted in Table 5-2.
In addition to the variations in S&A methodologies among the tests,
different metal phases also were measured. The majority of the metals
tests analyzed the particle phase (i.e., that captured on a filter). Five
facilities (Braintree, Prince Edward Island, Dyersburg, Akron, and
Hampton, 1982) were tested for metals in both the particle phase and the
condensible phase (i.e., absorbed in resin traps or impingers). The test
report for Malmo indicates that.only the condensible metals were tested.
In addition, some tests also specifically sampled for Hg in the vapor
phase.
5-3
-------
Analysis techniques for the various metals also varied widely. Most
analyses were performed using AA, although other methods included SSMS,
INA, direct coupled plasma, and XRF0 Table 5-2 provides details on the
various S&A methodologies.
5-4
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5-9
-------
-------
5.1 REFERENCES FOR CHAPTER 5
1. PEI Associates, Inc. Emission Test Report—Baltimore RESCO
Incinerator, Baltimore, Maryland. Prepared for U. S. Environmental
Protection Agency, Emissions Measurements Branch, Research Trianole
Park, North Carolina. July 1985. (Draft-Pending Determination and
Final Metals Analyses).
2. Greenberg, R. R., et al. Composition and Size Distributions of
Particles Released in Refuse Incineration (Alexandria, Virginia, and
Washington, D.C., MWC units). Environmental Science and Technology.
1978. p. 566.
3.
4.
5.
6.
7.
Haile, C. L., et al. Assessment of Emissions of Specific Compounds
From a Resource Recovery Municipal Refuse Incinerator (Hampton.
Virginia). EPA-560/5-84-002. June 1984.
Scott ^ Environmental Services. Sampling and Analysis of Chlorinated
Organic Emissions From the Hampton Waste-to-Energy System. Preoared
for The Bionetics Corporation. May 1985.
New York State Department of Environmental Conservation. Emission
Source Test Report - Preliminary Test Report on Westchester RESCO
January 8, 1986.
i
Midwest Research Institute. Environmental Assessment of a
Waste-to-Energy Process - Braintree Municipal Incinerator. ' Prepared
for U.S. Environmental Protection Agency, .Industrial Environmental
Research Laboratory, Cincinnati, Ohio. April 1979.
Haile, C. L., et al. Comprehensive Assessment of the Specific
Compounds Present in Combustion Processes, Volume I— Pilot Study of
Combustion Emissions Variability (Chicago, Illinois MWC). Prepared
for U. S. Environmental Protection Agency Office of Toxic Substances
8. California Air Resources Board. Air Pollution Control at Resource
Recovery Facilities. May 24, 1984.
Greenberg, R. R. A Study of Trace Elements On Particles From
Municipal Incinerators (Alexandria, Virginia; Washington, D. C.: and
Chicago, Indiana). University of Maryland, Doctoral Thesis,
9.
10. Jacko, R. B. and D. W. Neuendof. Trace Metal Particulate Emission
Test Results From a Number of Industrial and Municipal Point Sources
(for East Chicago, Indiana MWC unit). APCA Journal. Volume 27,
No. 10. October 1977. p. 989.
11. Hahn, J. L. Air Emissions Tests of Solid Waste Combustion in a
Rotary Combustion/Boiler System at Gallatin, Tennessee. Cooper
Engineers. July 1984. p
5-10
-------
14.
15.
12. Neullcht, R. Emission Test Report: City of Philadelphia Northwest
and East Central Municipal Incinerators. Prepared for U. S.
Environmental Protection Agency/Region III by Midwest Research
Institute. October 1985.
13. Hahn, J. L. Air Emissions and Performance Testing of a Dry Scrubber
(Quench Reactor) Dry Venturi and Fabric Filter System Operating on
Flue Gas From Combustion of Municipal Solid Waste in (Tsushima) -
Japan. Prepared for California Air Resources Board by Cooper
Engineers. July 1985.
Nunn, A. B.s III. Evaluation of HC1 and Chlorinated Organic Compound
Emissions From Refuse Fired Waste-to-Energy Systems (Hampton,
Virginia; and Wright-Patterson Air Force Base, Ohio). Prepared for
U.S. EPA/HWERL by Scott Environmental Services. 1983.
Howes, J. E., et al. Characterization of Stack Emissions From
Municipal Refuse-to- Energy Systems (Hampton, Virginia; Dyersburg,
Tennessee; and Akron, Ohio). Prepared by Battelle Columbus
Laboratories for U. S. Environmental Protection Agency/Environmental
Sciences Research Labortory. 1982.
PEI Associates, Inc.. Emission Test Report - Tuscaloosa Energy
Recovery, Tuscaloosa, Alabama. Prepared for U. S. Environmental
Protection Agency/Emissions Measurements Branch, Research Triangle
Park, North Carolina. July 1985.
Environment Canada. The National Incinerator Testing and Evaluation
Program: Two Stage Combustion (Prince Edward Island). Report
EPS 3/UP/l. September 1985. '
Higgins, 6. M. An Evaluation of Trace Organic Emissions From Refuse
Thermal Processing Facilities (North Little Rock, Arkansas; Mayport
Naval Station,. Florida; and Wright Patterson Air Force Base, Ohio).
Prepared for U.S. Environmental Protection Agency /Off ice of Solid
Waste by Systech Corporation. July 1982.
18a. Systech Corporation. Test and Evaluation of the Heat Recovery
Incinerator System at Naval Station, Mayport, Florida. Prepared for
Civil Engineering Laboratory, Naval Construction Battalion Center,
Port Hueneme, California. July 1982.
19. Kerr, R., et al. Emission Source Test Report— Sheridan Avenue RDF
Plant, Answers (Albany, New York). Division of Air Resources, New
York State Department of Environmental Conservation. August 1985.
20. Ozvacic, V.s et al. Determination of Chlorinated Dibenzo-p-Dioxins
Dibenzofurans, Chlorinated Biphenyls, Chlorobenzenes, and
Chlorophenols in Air Emissions and Other Process Streams at SWARU in
Hamilton. Prepared for Ministry of Environment by Ontario Research
Foundation. December 1983.
16.
17.
18.
5-11
-------
21. Complin, P. G. Report on the Combustion Testing Program at the SWARU
Plant, Hamilton-Wentworth. Prepared for Ministry of the Environment
by Envirocon Limited. January 1984.
22. New York State Department of Environmental Conservation. Emission
Source Test Report—Preliminary Report on Occidental Chemical
Corporation EFW. January 16, 1986.
23. Cooper and Clark Consulting Engineers. Air Emissions Tests of Solid
Waste Combustion in a Rotary Combustor/Boiler System at Kure
Japan. Prepared for West County Agency of Contra Costa County
California. June 1981.
24. Rising, B. W. and J. W. Allen. Emissions Assessment For Refuse-
Derived Fuel Combustion. Prepared for U. S. Environmental Protection
Agency, Hazardous Waste Engineering Research Laboratory, Cincinnati
.Ohio, by Battelle Columbus Laboratories. September 1985.
25
28.
29,
Hall, F. D., et al. Evaluation of Pilot-Scale Air Pollution Control
Devices on a Municipal Waterwall Incinerator (Braintree,
Massachusetts). Prepared by Pedco Environmental, Inc., for U. S
Environmental Protection Agency, Hazardous Waste Engineering Research
Laboratory, Cincinnati, Ohio. October 1985.
r™5 Env1ronmental Protection Agency. Operational Studies at the
SYSAV Energy From Waste Plant in Malmo, Sweden. Publication No.
SNV PM 1807. June 1983. •
26.
™£2',, * \ Preliminary Report-Air Emission Testing at the Martin
GMBH Waste-to-Energy Facility in Wurzburg, West Germany. Prepared bv
Coopers Engineers for Martin GMBH. January 1986.
Flakt Canada, Ltd. and Environment Canada. The National Incinerator
Testing and Evaluation Program: Air Pollution Control Technology.
Report EPS 3/UP/2. September 1986. *
Hahn, J. L., et al. Air Emissions Tests of a Deutsche Babcock
Anlagen Dry Scrubber System at the Munich North Refuse-Fired Power
Plant. Presented at the 78th Annual Meeting of the Air Pollution
Control Association. June 1985.
30. Visalli, J. R., et al. Pittsfield Incinerator Research Project—
• Status and Summary of Phase I Report. Presented at 12th Biennial
National Waste Processing Conference, Denver, Colorado. June 1986
31. Ozvacic, V., et al. Emissions of Chlorinated Organics From Two
Municipal Incinerators in Ontario. Journal of the Air Pollution
Control Association. Volume 35, No. 8. August 1985.
32. Signal Research Center, Inc. Summary and Review of PCDD/PCDF
Emissions from Mass Burn, Waste to Energy Plants. January 1986.
5-12
-------
33. Nottrodt, A. et al. Emissions of Polychlorinated Dibenzodioxins and
Polychlorinated Dibenzofurans from Solid Waste incinerators.
Translation from German. November 1984.
34. Kurt Carlsson, Flakt Industries AB. Emission of Heavy Metals From
"Energy from Waste"-Plant-Comparison of Different Gas Cleaning
Systems. Presented at the ISWA Specialized Seminar-Incinerator
Emissions of Heavy Metals and Particulates. Copenhagen.
September 1985.
35. New York Department of Environmental Conservation. Emission Source
Test Report—Preliminary Report on Cattaraugus County ERF.
August 1986.
36. Goumon, J., Milhau, A. Analysis of Inorganic Pollutants Emitted by
the City of Paris Garbage Incineration Plants.
37. Mclnnis, R^ G. and G. T. Hunt. Critical Criteria in The Development
of a Toxic Air Emissions Inventory "for Municipal Solid Waste
Incinerators. April 1986.
38. Seelinger, R. et al. Environmental Test Report (Walter B. Hall
Resource Recovery Facility, Tulsa, Oklahoma). Prepared by Ogden
Projects, Inc., for Tulsa City County Health Department.
September 9, 1986.
39. Benfenati, R., et al. Studies on the Tetrachlorodibenzo-p-Dioxins
(TCDD) and Tetrachlorodibenzofurans (TCDF) Emitted From an Urban
Incinerator. Chemosphere. Volume 15, No. 5. 1986. pp. 557-561.
40. Zurlinden, Ronald A., et al. Environmental Test Report (Marion
County, Oregon Solid Waste-to-Energy). Prepared by Ogden Projects,
Inc. November 1986.
41. ' Boisjoly, Lucie. Measurement of Emissions of Polychlorinated
Dibenzo-p-Dioxin (PCDD) and of Polychlorinated Dibenzofuran (PCDF)
from the Des Carriers Incinerator in Montreal. Environmental Canada
Report EPS 5/UP/RQ1. December 1982.
42. Perez, Joseph. Review of Stack Test Performed at Barron County
Incinerator. State of Wisconsin: Correspondence/Memorandum.
February 1987.
43. Entropy Environmentalists, Inc. Stationary Source Sampling Report.
EEI Reference-No. 2740A, B, C. (Baltimore Rises Company L. P.*
Southwest Resource Recovery Facility, Baltimore, Maryland).
Performed for RUST International Corp. January 1985.
44. Radian Corporation. Final Emissions Test Report, Dioxins/Furans and
Total Organic Chlorides Emissions Testing. North Andover Resource
Recovery Facility, North Andover, Massachusetts. November 14, 1986.
5-13
-------
45
Jamgochian, C. L., et al. Municipal Waste Combustion Multipollutant
Study Emission Test Report, Volume 1-^-Summary of Results, Volume 2—
Appendices A-D, Volume 3—Appendices E-L (N. Andover, Massachusettes
MWC). Prepared for U. S. Environmental Protection Agency Emissions
Measurement Branch of the Emissions Standards and Engineering
Division by Radian Corporation. Research Triangle Park, N.C
Publication No. EMB Report No. 86-MIN-02. April 1987.
Radian Corporation. Final Emissions Test Report, Dioxins/Furans and
Total Organic Chlorides Emissions Testing. Saugus Resource Recovery
Facility, Saugus, Massachusetts. October 2, 1986.
Clean Air Engineering, Inc. Report on the Compliance Testing
Conducted for Waste Management, Inc., at the McKay Bay Refuse-to-
Energy Project Located in Tampa, Florida. October 29, 1985.
Marklund, S., et al. Determination of PCDD's and PCDF's in
Incineration Samples and Pyrolytic Products. Presented at ALS
National Meeting, Miami, Florida, April 1985.
Krall, M., et al. Draft Final Report, Characterization of Emissions
From the Red Wing Municipal Solid Waste Incinerator. Submitted to
Cal Recovery Systems, Inc., by Radian Corp.
Cal Recovery Systems, Inc. Final Report, Evaluation of Municipal
Solid Waste Incineration. (Red Wing, Minnesota facility) Submitted
to Minnesota Pollution Control Agency Report No. 1130-87-1. January
1987.
Bordson, David. Report on the Completion of the Red Wing Municipal
Solid Waste (MSW) Incineration Evaluation Study. March 12, 1987.
Kalitowski, T. J. Status Report on Solid Waste Incineration in
Minnesota. Office Memorandum. March 18, 1987.
Kalitowski, T. J. Addendum to March 18, 1987, Status Report on Solid
Waste Incineration in Minnesota Memorandum. Office Memorandum.
March 30, 1987.
PEI Associates, Inc. Chromium Screening Study Test Report.
Municipal Incinerator, Tuscaloosa, Alabama. Prepared for U. S.
Environmental Protection Agency/Emission Measurement Branch, Research
Triangle Park, North Carolina. EMB Report 85-CHM-9. January 1986.
55. Roy F. Weston, Inc. Source Emissions Test Report. Performed for
Vicon Recovery Systems, Inc. (Pittsfield, Massachusetts facility.)
November 20, 1985. '
46.
47.
48.
49.
50.
51.
52.
53.
54.
5-14
-------
56. Systems Technology Corporation. Small Modular Incinerator Systems
with Heat Recovery, A Technical, Environmental, and Economic
Evaluation. Prepared for U. S. Environmental Protection
Agency/Office of Solid Waste. Report SW177c. November 1979.
57. Draft Sampling and Analytical Protocols for PCDD's and PCDF's in
Stack Emissions.
December 1984.
American Society of Mechanical Engineers.
5-15
-------
6. AP-42 SECTION 2.1: REFUSE COMBUSTION
The revision to Section 2.1 of AP-42 is presented in the following
pages as it would appear in the document.
6-1
-------
-------
2.1 REFUSE COMBUSTION
Refuse combustion^generally refers to the burning of garbage or other
wastes that are predominantly non-hazardous. Types of combustion devices
used to^burn refuse include single chamber units, multiple chamber units,
trench incinerators, controlled air incinerators, and pathological
incinerators. These devices are used to burn municipal, commercial,
industrial, pathological, and domestic refuse. The refuse combustion
section of AP-42 will be reformatted. In the interim, Section 2.1.1
presents emission factors for municipal waste combustors, and Section 2.1.2
presents emission factors for other types of refuse incinerators. Emission
factors for hazardous waste incinerators are not included in AP-42 at this
time but will be added at a later date.
2.1.1 Municipal Waste Combustion1
Mass-burn excess-air combustion is the predominant method of burning
municipal solid waste (MSW). Approximately 70 percent of the MSW burned is
burned in mass-burn units. The term mass burn means that the MSW is
combusted without any preprocessing other than the removal of bulky items
(stoves, telephone poles, etc.) to produce a more homogeneous fuel. Mass-
burn units are preferred for disposal of large amounts (up to 3,000 tons per
day) of MSW. Some mass-burn units coincinerate MSW and sewage sludge. A
second type of municipal waste combustor is the starved-air or modular
combustor. Starved-air combustors are the most-common type of"comfaustor•
because they handle smaller amounts (up to 5QO tons per day) of MSW.
Another type of municipal waste combustor is the refuse-derived-fuel (RDF)
combustor. Refuse-derived-fuel combustors burn MSW from which metals and
other noncombustible materials have been removed to increase the heating
value -of the MSW. Because of the processing costs associated with producing
RDF, these units are not as popular as mass-burn or starved units. Some RDF
is coincinerated with coal or sewage sludge.
2.1.1.1 Process Description
1-3
Mass-burn Combustors—In a typical mass-burn combustor, an overhead
crane mixes MSW in a storage pit and then transfers the MSW into a feed
chute. A hydraulic ram system under the feed chute charges the waste onto a
grate system. As the waste is moved through the combustion chamber by the
grate system, it passes through the following zones: (a) a dry-out zone
where the moisture in the waste is evaporated; (b) a combustion zone; 'and
(c) a burn-out zone where final combustion occurs. The resulting ash falls
into the flooded ash pit and is removed and sent to a landfill. In some
cases, ferrous metals are removed from the ash by magnetic separation. The
capacity of individual combustors can range from 50 to 1,000 tons of waste
per day, and usually 2 or 3 units are at a site.
Several types of grate systems are used with mass-burn combustors. All
of these grate designs are similar in that they are designed to move the
waste through the combustor and promote complete combustion. The grates are
either traveling, rocking, reciprocating, roller, or rotary designs. Air
for the combustion process is supplied by underfire air, which is introduced
into multiple compartments, or plenums, under the.stoker grates and by
Solid Waste Disposal
2.1-1
-------
overfire air, which is introduced by nozzles or openings located above the
grates.
All new mass-burn combustors are expected to have a waterwall furnace
to recover energy in the form of steam. Many older facilities have
refractory-lined walls rather than waterwalls. Large mass-burn units are
usually field erected.
The air pollution control systems for these combustors are
electrostatic precipitators (ESP's), dry fabric filters, dry scrubbing
systems (with either ESP's or fabric filters), and wet scrubbers.
Starved-Air Combustors—A typical starved-air combustor consists of
separate primary and secondary chambers. The primary chamber is fed MSW by
a hopper and ram-feed system. Air is supplied to the primary chamber at
substoichiometric levels. Rams in the primary chamber are used to push
residue and break up clinker. Exhaust gases, including the incomplete
combustion products, (mostly carbon monoxide and hydrocarbons of low
molecular weight) pass into the secondary combustion chamber.
In the secondary combustion chamber, more air is added, and combustion
is completed. The resulting hot gases (1000°C to 1200°C) can be passed
through a heat recovery boiler for energy recovery. Although several
existing starved-air combustors do not have energy recovery systems, all new
starved-air combustors are expected to have energy recovery systems. Ashes
are quenched and removed for disposal. Most existing starved-air municipal
'waste combustors operate without emission control systems although some
combusto'rs do have ESP's or'fabric filters for particulate matter control.
Starved-air combustors generally are marketed as off-the-shelf units that
can be installed relatively quickly.
•Refuse-Derived-Fuel Combustors—One alternative to direct combustion of
MSW is to process the waste to produce refuse-derived fuel (RDF). The four
main types of RDF are fluff, densified, powdered, and wet pulped. Fluff RDF
is prepared by mechanical shredding of MSW followed by air classification,
magnetic separation, or trommeling to reduce the noncombustible content of
the waste stream. If multiple shredding stages are used, fine RDF is
produced. Densified RDF is produced by extruding fine RDF in a pellet
mill. The production of powdered RDF requires mechanical, thermal, and
chemical processing of shredded MSW that has undergone screening and
magnetic separation. In the wet pulping process, the pulper is fed MSW that
has been sluiced with water. Noncombustibles are removed in a liquid
cyclone. The RDF is then mechanically dewatered to a moisture content of
50 percent. • • .
The designs of dedicated boilers used to combust RDF are basically the
same as those of boilers used for coal combustion. Typical configurations
include suspension, stoker, and fluidized-bed designs. These boilers may
burn up to 1,000 tons of RDF per day. The ash is quenched and removed to a
landfill. Most RDF units use ESP's for particulate matter control.
2.1-2
EMISSION FACTORS
-------
2.1.1.2 Emissions and Controls »**
Refuse incinerators have the potential to emit significant quantities .
of pollutants .to the atmosphere. One of these pollutants is particulate
matter,^which is emitted because of the turbulent movement of the combustion
gases with respect to the burning sludge and resultant ash. Particulate
matter is also produced when metals that are volatilized in the combustion
zone condense in the exhaust gas stream. The particle size' distribution and
concentration of the particulate emissions leaving the incinerator vary
widely, depending on the composition of the refuse being burned and the type
and operation of the incineration process.
Incomplete combustion of refuse resulting from improper incinerator
design or operating conditions can result in emissions of intermediate
products (e.g., volatile organic compounds and carbon monoxide). Other
potential emissions include sulfur dioxide, nitrogen oxides, metals, acid
gases, and toxic organic compounds.
A wide variety of control technologies is used to control refuse
incinerator emissions. Currently, the most widely used are ESP's, fabric
filters,^wet scrubbers, and dry scrubbers. Many control systems use a
combination of these four types of control technologies.
Electrostatic precipitators are used on 75 percent of existing
municipal waste incinerators to control particulate matter emissions. The
efficiency^of atypical ESP can range from 90 to 99 percent depending on
particle size distribution, gas flow rate, and particulate resistivity; '
Fabric filters generally have not been applied directly to flue gases
from municipal incinerators but rather are used as sorbent collectors and
secondary reactors for dry and semi-dry scrubbers. With upstream scrubbing
of acid gases and sorbent accumulation on fabric materials, fabric filters
become a viable choice for fine particulate control as well as for control
of other pollutants. , ' •
Many types of wet scrubbers are used for removing acid gases—spray
towers, centrifugal scrubbers, and venturi scrubbers. Scrubbers with
internals, such as packed-beds and trays, are less commonly used. In wet
scrubbers, the exhaust gas enters the absorber where it is contacted with
enough alkaline solution to saturate the gas stream. The alkaline solution
reacts with the acid gases to form salts, which are generally insoluble and
may be removed by sequential clarifying^ thickening, and vacuum filtering.
The dewatered salts or sludges are then landfilled.
The two types of dry scrubbing are dry injection and semi-dry
scrubbing. In both^cases, the material collected in the particle collector
is dry. Dry injection involves the.injection of a solid powder such as lime
or sodium bicarbonate into the flue gas (with a separate water injection)
where acid gas removal occurs in the duct and continues"in the dust
collector as sorbent and ash particles and condensed volatile matter are
captured. In a semi-dry process, also known as spray drying or wet/dry
scrubbing, the sorbent enters the flue gas as a liquid spray with sufficient
moisture to promote rapid absorption of acid gases, but, because the
Solid Waste Disposal
2.1-3
-------
moisture evaporates, only dry solid particles enter the particle
collector.
• ; Emission factors for municipal waste incinerators are shown in
Table 2.1.1-1. Table 2.1.1-2 shows the cumulative particle size
distribution and size-specific emission factors for municipal waste
cdmbustors. Figures 2.1.1-1, 2.1.1-2, and 2.1.1-3 show .the cumulative
particle size distribution and size-specific emission factors for mass-burn,
starved-air and RDF combustors, respectively.
2.1-4
EMISSION FACTORS
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2.1-6
EMISSION FACTORS
-------
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Solid Waste Disposal
2.1-7
-------
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2.1-8
EMISSION FACTORS
-------
References for Section 2.1.1
1.
3.
4.
Radian Corporation, Appendix A; Characterization of the Municipal Waste
Combustion Industry. Prepared for the U. S. Environment-a 1
Agency, Research Triangle Park, NC.- October 1986.
2. Air Pollutant Emission. Factors. Final Report, Resources Research,
Incorporated^ Res ton, Virginia, Prepared for National Air Pollution
Control Administration, Durham, NC, under contract No. CPA-2269-119
April 1970. '
Draft.report* Emission Factor Documentation for AP-42 Section 2.1.1—
Municipal Waste~Coinbustion. Monitoring and Data Analysis n-i^i ci nn t "—
Office of Air Quality Planning and Standards, U. S. Environmental
Protection Agency, Research Triangle Park, NC, September 1987.
C. B. Sedman and T. G. Brna, Municipal Waste Combustion Study; Flue Gas
Cleaning Technology, EPA/530-SW-87-021d, U. S. Environmental Protection
Agency, Research Triangle Park, NC, June 1987.
Solid Waste Disposal
2.1-9
-------
-------
2.1.2 Other Types of Combustors
The most common types of combustors consist of a refractory-lined
chamber with a grate upon which refuse is burned. In some newer
incinerators water-walled furnaces are used. Combustion products are formed
by heating and burning of refuse on the grate. In most cases, since
insufficient underfire (undergrate) air is provided to enable complete
combustion, additional over-fire air is admitted above the burning waste to
promote complete gas-phase combustion. In multiple-chamber incinerators,
gases from the primary chamber flow to a small secondary-mixing chamber
'where more air is admitted, and more complete oxidation occurs. As much as
300 percent excess air may be supplied in order to promote oxidation of
combustibles. Auxilliary burners are sometimes installed in the mixing
chamber to increase the combustion temperature. Many small-size incin-
erators are single-chamber units in which gases are vented from the primary
combustion chamber directly into the exhaust stack. Single-chamber
incinerators of this type do not meet modern air pollution codes.
2.1.2.1 Process Description
1-1+
-Industrial/Commercial Combustors—The capacities of these units cover a
wide range, generally between 50 and 4,000 pounds (22.7 and 1,800 kilograms)
per hour. Of either single- or multiple-chamber .design, these units'are
often manually charged and intermittently operated. Some industrial
combustors are similar to municipal combustors in size and design. Better
designed emission control systems include gas-fired afterburners,, scrubbers,
or both.
Trench Combustors—A trench combustor is designed for the combustion of
wastes haying relatively high heat .content and low ash content. The design
of the unit is simple: a U-shaped combustion chamber is formed by the sides
and bottom of the pit, and air is supplied from nozzles (or fans) along the
top of the pit. The nozzles are directed at an angle below the horizontal
to provide a curtain of air across the top of the pit and to provide air for
combustion in the pit. ,Low construction ,and operating costs have resulted
in^the^use of this combustor to dispose of materials other than those for
which it was originally designed. Emission factors for trench combustors
used to burn three such materials are included in Table 2.1.2-1.
Domestic Combustors—This category includes' combustors marketed for
residential use. Fairly simple in design, they may have single or multiple
chambers and usually are equipped with an auxiliary burner to aid
combustion.
Flue-Fed Combustors1--Thes'e units, commonly found in large apartment
houses, are characterized by the charging method of dropping refuse down the
combustor flue and into the combustion chamber. Modified flue-fed
incinerators utilize afterburners and draft controls to improve combustion
efficiency and reduce emissions.
^Pathological Combustors—These are combustors used to dispose of animal
remains and other organic material of high moisture content. Generally,
these units are in a size range of 50 to 100 pounds (22.7 to 45.4 kilograms)
1/82
Solid Waste Disposal
2.1-11
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2.1-12
EMISSION FACTORS
1/82
-------
per hour. Wastes are burned on a hearth in the combustion chamber. The
units are equipped with combustion controls and afterburners to ensure good
combustion and minimal emissions.
2.1.2.2 Emissions and Controls
Operating conditions, refuse composition, and basic combustor design
have a pronounced effect on emissions. The manner in which air is supplied
t'o the combustion chamber or chambers has a significant effect on the
quantity of particulate emissions. Air may be introduced from beneath the
chamber, from the side, or from the top of the combustion chamber. As
underfire air is increased, an increase in fly-ash emissions occurs.
Erratic refuse charging causes a disruption of the combustion bed and a
subsequent release of large quantities of particulates. Large quantities of
uncombusted particulate matter and carbon monoxide are also emitted for an
extended period after charging of batch-fed units because of interruptions
in^the combustion process. In continuously fed units, furnace particulate
emissions are strongly dependent upon grate type. The use of a rotary kiln
and reciprocating grates results in higher particulate emissions than the
use of a rocking or. traveling grate. Emissions of oxides of sulfur are
dependent on the sulfur content of the refuse. Carbon monoxide and unburned
hydrocarbon emissions may be significant and are caused by poor combustion
resulting from improper combustor design or operating conditions. Nitrogen
oxide emissions increase with'an increase in the temperature of the
combustion zone, an increase in the residence time in the combustion zone
before quenching, and an increase in the. excess air rates to the point where
dilution cooling overcomes the effect of increased oxygen concentration.
1/82
Solid Waste Disposal
2.1-13
-------
-------
References for Section 2.1.2
1. Air Pollutant Emission Factors, Final Report, Resources Research,
Incorporated, Reston, VA, prepared for National Air Pollution Control
Administration, Durham, NC, under Contract Number CPA-2269-119
April 1970.
2« Control Techniques for Carbon Monoxide Emissions from Stationary
Sources. U.S. DHEW, PHS, EHS, National Air Pollution Control
Administration, Washington, DC, Publication Number AP-65, March 1970.
3- Air Pollution Engineering Manual. U.S. DHEW, PHS, National Center for
Air Pollution Control, Cincinnati, OH, Publication Number 999-AP-40
1967, p. 413-503. '
4. J. DeMarco. et al., Incinerator Guidelines 1969. U.S. DHEW, Public
Health Service, 'Cincinnati, OH, SW. 13TS, 1969, p. 176.
5. J. 0. Brukle, J. A. Dorsey, and B.' T. Riley, The Effects of Operating
Variables and Refuse Types on Emissions from a Pilot-Scale Trench
Incinerator, Proceedings of the 1968 Incinerator Conference. American
Society of Mechanical Engineers, New York, NY, May 1968, p. 34-41.
6. Walter R. Nessen, Systems Study of Air Pollution from Municipal
Incineration. Arthur D. Little,- Inc. Cambridge, MA, prepared for
National Air Pollution Control Administration, Durham, NC, under
Contract Number CPA-22-69-23, March 1970.
7. C. V. Kanter, R. G. Lunche, and A. P. Fururich, Techniques for Testing
Air Contaminants from Combustion Sources, J. Air Pol. Control Assoc
6(4): 191-199, February 1957. " '
8. J. L. Stear, Municipal Incineration; A Review of Literature. U. S.
Environmental Protection Agency, Office of Air Programs, Research
Triangle Park, NC, OAP Publication Number AP-79, Ju^ne 1971. , '
9. E. R. Kaiser, Refuse Reduction Processes in Proceedings of Surgeon
General's Conference on Solid Waste Management. Public Health Service
Washington, DC, PHS Report Number 1729, July 10-20, 1967.
10. Unpublished source test data on incinerators, Resources Research,
Incorporated, Reston, VA, 1966-1969.
11. E. R. Kaiser, et al., Modifications to Reduce Emissions from a Flue-Fed
Incinerator. New York University, College of, Engineering, Report
Number 552.2, June 1959, p. 40 and 49.
12. Communication between Resources Research, Incorporated, Reston, VA, and
Maryland State Department of Health, Division of Air Quality Control.
Baltimore, MD, 1969.
2.1-14
EMISSION FACTORS
1/82
-------
13. Unpublished data on incinerator testing. U.S. DHEW, PHS, EHS, National
Air Pollution Control Administration, Durham, NC, 1970.
1/82
Solid Waste Disposal
2.1-15
-------
7. DATA BASE
7.1. DISCUSSION OF PROCESS AND CONTROL DEVICE TABLES
7.1.1 Discussion of Process Design and Operation Tables
Design and operating' information for the process equipment in use at
the 36 test sites is presented in tabular format in this section.
Specific design factors anticipated to have causal relationships with
combustion efficiency and/or pollutant emission levels have been
identified in the combustor design tables. A paucity of performance-
related design information is available in the emission test reports •
identified in-Supplement A. Tables 7-la and 7-lb present the available
structural and airflow design specifications, respectively, for the mass-
burn facilities in SI units. Process operating conditions are presented
in Table 7-2 for the mass-burn facilities in SI units. Comparable design
data for the starved-air facilities and RDF facilities are presented
similarly in. Tables 7-3a, 7-3b, 7-5a, and 7-5b. Process operating
conditions are presented for starved-air and RDF-fired facilities in SI
units in Tables 7-4 and 7-6, respectively. The same table sequence is
followed for process design and operating conditions in English units for
Tables 7-59 though 7-64.
7.1.2 Discussion of Control Device Design and Operating Condition Tables
Control device design and operating characteristics are presented in
Tables 7-7 through 7-12 in SI units, and Tables 7-65 through 7-70 in
English-units. Tables 7-7 and 7-65 present ESP desi-gn data in SI and
English units, respectively. Comparable design data-for the OS systems
are presented in Tables 7-8 and 7-66. Tables 7-9 and 7-67 present design
data for WS and FF systems in SI and English .units, respectively.
Operating conditions are presented for the different types of control
equipment in the same "sequence in Tables 7-8, 7-10, and 7-12 in SI units,
and in Tables 7-68 through 7-70 in English units.
7-1
-------
-7.2. DISCUSSION OF EMISSION TABLES
The emission test data for the 36 test sites examined during this
study are presented for 48 specific pollutants or related pollutants in
Tables 7-13 through 7-58 and Tables 7-71 through 7-116. Each table
presents emission data for one pollutant/related pollutants either in SI
units or in English units. Data are presented in SI units in Tables 7-13
through 7-58 and in English units in Tables 7-71 through 7-116. For each
•test site, the tables present the type of facility, facility name, type of
control device, test condition, and three columns of emission values for
uncontrolled and controlled emission levels upstream from and downstream
from the contro.l device. For most tables, emission values are presented
in units of mass/stack gas volume in dry standard conditions (DSC) of 20°C
and 760 mm Hg (68°F and. 29.92 in. Hg), in DSC converted to 12 percent C02,
and mass of pollutant per mass of feed input.
For the metals tables, emission values are presented in units of mass
of metal emissions/mass of PM emissions in lieu of mass/stack gas volume
at DSC. The four classes of pollutants are presented in the following
sequence of tables: (1) the four criteria pollutants are presented in
Tables 7-13 through 7-16 in SI units and Tables 7-71 through 7-74 in
English units; (2) the 7 metals are presented in Tables 7-17 through 7-23
in SI units and in Tables 7-75 through 7-81 in English units; (3) the
3 acid gases ,are presented in Tables 7-24 through 7-26 in SI units and
Tables 7-82 through 7-84 in English units; and (4) the 21 organic ,
pollutants or related pollutants are presented in Tables 7-27 through 7-55
in SI units and Tables 7-85 through 7-113 in English units.
The supplementary emission data from 27 test sites for PCDD, PCDF,
and metals are presented in Tables 7-56 through 7-58, respectively, in SI
units and-Tables 7-114 through 7-116 in English units.
It should be noted that the "emissions upstream from control device"
and "emissions downstream from control device" designations on the tables
in this chapter are indicative only of the location at which the
measurements were made. These designations were selected to present the
emission data in a consistent format that permits comparison. Control
efficiencies are presented for those control devices known to demonstrate
control over, a specific pollutant. In some cases, these designations
7-2
-------
could result in negative control efficiencies for some gas-phase
pollutants like S02, NOX, and CO. However, the lack of control of such
pollutants is not a reflection of the efficiency of the PM control
device. Rather, variations in the measured values of such pollutants
upstream and downstream of the PM control device typically are a product
of the normal variation expected with any test method (and are suitably
footnoted as they occur in the tables).
7-3
-------
-------
-Facility type/structural and airflow design data/operating conditions 1n
SI units
7-la Mass-Burn Facility Structural Design Data
7-lb Mass-Burn Facility Airflow Design Data
7-2 Mass-Burn Operating Data for MWC_Facilities
7-3a Starved-Air Facility Structural Design Data
7-35 Starved-Air Facility Airflow Design Data
7-4 Starved-A1r Operating Data for MWC Facilities
7-5a . RDF-Fired Facility Structural Design Data
7-5b RDF-Fired Facility Airflow Design Data
7-6 RDF-Fired Operating Data for MWC Facilities
7-4
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Control device design and operating characteristics 1n SI units-
7-7 Electrostatic Precipltator Design Specifications
7-8 Electrostatic Precipitator Operating Conditions
7-9 Dry Scrubber/Fabric Filter System Design Specifications
7-10 Dry Scrubber/Fabric Filter System Operating Conditions
7-11 Fabric Filter-or Scrubber Design Specifications
i
7-12 Fabric Filter or Scrubber Operating Conditions
7-14
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Criteria pollutants 1n SI units
7-13 Summary of Particulate Emissions From MWC Facilities
7-13a Particle Size Distribution Data From MWC Facilities
7-13b Summary of Emission Factors for Volatile Organic Compounds from
Municipal Waste Combustion
7-14 Summary of Carbon Monoxide Emissions From MWC Facilities
7-15 Summary of Sulfur Dioxide Emissions From MWC Facilities
7-16 Summary of Oxides of Nitrogen Emissions From MWC Facilities
7-16a Summary of Criteria Pollutant Emission Factors for Municipal Waste
Combustion
7-21
-------
-------
TABLE 7-13. SUMMARY OF PARUCULATE EMISSIONS FROM MWC FACILITIES
Fact 1 ity name
Mass burn
Waterwa 1 1
ESP
Baltimore, 1/85
Baltimore, 5/85
Braintree
Hampton (1981)
Hampton (1982)
Hampton (1984)
McKay Bay (Unit 1)?
McKay Bay (Unit 2)P
McKay Bay (Unit 3)£
McKay Bay (Unit 4)D
N. Andover
Peekskill (4/85)
Tulsa (Unit 1)
Tulsa (Unit 2)
CYC/FF
Gal latin
ESP/WS
Kure
SO/ESP
Munich
CYC/DI/ESP/FF
Mai mo
WSH/DI/FF
. Quebec
Quebec
Quebec
Quebec
Wurzburg
SD/FF
Marion County
Quebec
Quebec
Refractory
ESP
Philadelphia (NW1)
Philadelphia (NW2)
CYC
Mayport
SD/FF
Tsushima
Starved air
No control device
Dyersburg
N. Little Rock. 3/78!:
N. Little RockJ 5/78=
N. Little Rock, 10/78C
Prince Edward Island
Prince Edward Island
Prince Edward Island
Prince Edward Island
Barren County
Red Wing A
Tuscaloosa
RDF fired
ESP
Akron
Albany
Hami Iton-Wentworthf
Hami 1 ton-Wentworthe
Hami Iton-Wentworth,
Hami 1 ton -Wentworth8
Ham i 1 ton-Wentworth"
Hamilton-Wentwortn8
Niagara
Test
condition
Normal
Norma 1
Norma 1
Norma 1
Normal
h Norma 1
0 Norma 1
Norma 1
Norma 1
Norma 1
Norma 1
Normal
Norma 1
Norma 1
Norma 1
Normal
MSW only
Normal
- 110
125
140
200
Norma.l
Normal
140
140 4 R.
Normal
Normal
MSW/waste oi 1
Normal
Normal
Normal
Norma 1
Normal
Normal
Long
Higfi
Low
Normal
Normal
Normal
Normal
Normal
F/None
F/Low back
F/Back
F/Back. low
f PftrtT
r i wii i
H/None
H/Low back
Normal
. Emissions
upstream from
control device
mg/Nm3 at kg/Mg
•T2| C02 feed
4,690 23.2
2,240 6.50
1
4,490
4,980 '
3,690
3,850
2^140
6,690 21.3
4,300. 18.2
6,610 ' 24.9 | '
4,450 25.4 '
8 460
7,910
6,650
SOfifl
, 7OU
1
5 790
7^650
I
4,460 12.4
, i
303 1 .30
327 | i
436 ' '
297 1.52 .
214 0.840 I1
234 0.870
255 1.0
173 ' 0.680
197 .0.727
10,600 51.7
Emissions
downstream from
control device
mg/Nm3 at kg/Mg
T2* C02 fee
-------
TABLE 7-13. (continued)
Faci 1 ity name
CYC/DI/ESP/FF
Mai mo
Test
condition
RDF
Emissions
upstream from
control device
mg/Nm at kg/Mg
\2% CO- feecf
4,330 29.1
Emissions
downstream from
control device
mg/Nm' at kg/Mg
12% C02 feecf
. .—
Control
effi-
ciency, %
jrAverage of two test runs.
cControl efficiency not calculated because inlet and outlet test runs were not simultaneous.
JjNot corrected to dry standard conditions.
.Control efficiency is not typical of most properly maintained ESP's
One test run only. . 11
7-23
-------
TABLE 7-13a. PARTICLE SIZE DISTRIBUTION DATA FROM MWC FACILITIES
Facility
Mass bum
Water-wall
ESP
Baltimore, 5/85 -
Braintree
Hampton
CYC/FF
Galjatin
ESP/WS
Kure
SD/ESP
Munich
Mass burn
Refractory
SD/FF
Tsushima
Starved air
No control device
Oyersburg
Cut
diameter
• nicrons
• 0.625
1.0
2.5
5.0
10.0
15.0
0.625
1.0
2.5
5.0
10.0
15.0
0. 625
1.0
2.5
5.0
10.0
15.0
0.625
1.0
2.5
5.0
10.0
15.0'
0.625
1.0
2.5
5.0
10.0
15.0
0.625
1.0
2.5
5.0
10.0
15.0
•
0.625
1.0
2.5
5.0
10.0
1S.O
0.-625
1.0
2.5
5.0
10.0
15.0
Upstream from
Cun. % < cut
11.4
13.1
17.3 .
21.4
26.4
29. 8
23.0
37.0
50.0
70.0
75.0
6.97
8.04
' 10.6
13.1
16.1
• 18.3
16.2 '
19.0
26.5
34.4
45.1
53.2
7.0:
13.0
16.0
21.0
27.0
35.0 '
.
10.3
12.3
17.4
22.7
29.6
34.6
44
70 .
91
92
96
97
control device
: Emission
factor,
kg/Mg feed
2.88
3.32
4.38
5.40
6.65
7.55
1.50
2.40
3.25
4.55
4.88
5.95
6.85
9.00
U.I
13.7
15.5
2.95
3.46
4.82
6.25
8.20
9.70
1.82
3.37
4.15
5.45
7.00
9.05
1.27
1.52
2.15
2.31
3.16
4.28
0.294
0.466
0.605
0.615
0.640
0.645
Downstream from
Cunt. % < cut
33.3
37.6
47.6
57.1
68.5
76.3
25.7
31.0
44.7
' 59.0
77.9
91.6
1.2
5.2
9.9
23.0
44.0
61.0
0.94
.1.07
1.37
1.66
2.01
2.24
17.0
30.0
48.0
62.0
66.0
3.76
6.34
17.6
38.0
82.2
100.0
control device
Emission
factor,
kg/Mg feed
0.01
0.01
0.015
0.02
0.02
0.025
0.388
0.418
0.675
0.890
1.18
1.39
0.0235
0.102
0.194
0.451
0.865
1.195
0.015
0.015
0.02
0.025
0.03
0.03
0.0155
' 0.0275
0.0440
0.0570
0.0605
0.00285 .
0.0480
0.0133
0.0287
0.0620
0.0751
Control
efficiency, X
99.7
99.7
99.7
99.6
99.7
99.7
74.0
80.5 '
79.2
80.4
75.6
99.7
99.8
99.8
99.8
99.8
99.8
99.1
99.2
98.2
99.0
99.1
99.8
99.7
99.4
99.0
98.3
98.2
(continued)
7-24
-------
TABLE 7-13a. (continued)
Facility
Horth Little Rock
Prince Edward Island
•
ESP
Tuscaloosa
Cut
diameter
nlcrons
0.625
1.0
2.5
5.0
10.0
• 15.0
0.625
1.0,
2.5
5.0
10.0
15.0
0.625
1.0
2.5
5.0
10. b
15.0
Upstream from
Cum. 2 < cut
76.0
81.0
89.0
95.0
97.0
— .
42.5
49.9
68.4
84.8
93.4
99.3
86.4
87.6
90.0
91.8
93.7
94.8
control device
Emission
factor,
kg/Mg feed
3.38
3.60
3.96
4.22
4.32
0.36
0.42
0.58
0.72
0.79
0.84
0.60
0.61
0.62
0.63
' 0.65
0.66
Downstream from
Cum. X < cut
31.9
83.0
85.4
87.2
89.1
90.2
control device
Emission
factor,
kg/Mg feed
0.49
O.SO
0.51
0.52
0.54
0.55
Control
efficiency, %
17.5
18.0
17.6
17.3
17.7
16.8
RDF-fired
ESP
Akron
0.625
1.0
2.5
5.0
10.0
15.0
11.0
25.0
39.0
50.0
53.0
61.0
0.14
0.32
0,50
0.63
0.67
0.77
7-25
-------
TABLE 7-13b.
SUMMARY OF EMISSION FACTORS FOR VOLATILE ORGANIC COMPOUNDS
FROM MUNICIPAL WASTE COMBUSTION
Facility name
Test
condition
Emissions upstream
from control device. kg/Ho.
Methane Nonraethane
Enissions downstream
from control device. kg/Ma
Methane Nonraethane
Mass burn
Waterwall
ESP
McKay Bay
N. Andover
Tulsa
CYC/FF
Gal latin
EPS/WS
Kure
SD/FF
Marion County
Normal
Normal
Normal
Normal
Normal
Normal
0.0032
0.011
0.029
0.116
0.046
0.0074
7-26
-------
TABLE 7-14. SUMMARY OF CARBON MONOXIDE-EMISSIONS FROM MWC FACILITIES
Faci 1 ity name
Mass burn
Waterwal 1
ESP
Baltimore, 1/85
Braintree
Chicago
Hampton (1983)
Hampton (1984) ,
McKay Bay (unit 1)|
McKay Bay (unit 2),
McKay -Bay (unit 3),
McKay Bay (unit 4)a
N. Andover
Saugus
Tulsa (Unit 1)
Tulsa (Unit 2)
CYC/FF
Gal latin
ESP/WS
Kure
CYC/DI/ESP/FF
Mai mo
WSH/DI/FF
Quebec
Quebec
Quebec
Quebec
Wurzburg
SD/FF
Marion County
Quebec
Quebec
Refractory
ESP
Philadelphia (NW1)
Philadelphia (NW2)
CYC
Mayport
Starved air
No control device u
N. Little Rock 10/78°
Prince Edward Island
Prince Edward Island
Prince Edward Island
Prince Edward Island
ESP
Barren County
Red Wing
RDF fired
ESP
Albany _
Hamilton-WentworthS
Hamilton-Wentworth11
Hami Iton-Wentworth-
Hami Iton-Wentworthc
Hamilton-Wentworthj:
Ham I Iton-Wentwprthc
CYC/DI/ESP/FF
Malmo • .
Test
condition
Norma 1
Norma 1
Norma 1
Norma 1
Norma 1
Norma 1
Norma 1
Normal
Norma 1
Normal
Normal
Norma 1
Norma 1
Normal
Norma 1
Norma 1
110
125
140
200
Norma I
Norma I
140
140 & R.
Norma 1
Norma 1
MSW/waste oi 1
Normal
Norma 1 •
• *-ong
Low •
Normal
Normal
Norma I
F/None
' F/Low back
F/Back
F/Back. low
•f r*onT
1 1 Wll I
H/None
H/Low back ,
RDF
Emissions Emissions
_ upstream from downstream from
control device control device Control
ppmdv at kg/Mg ppmdv at kg/Mg effi-
12$ C02 feed 12$ C02 feed cieney, %
19.6 0.106
1 350 4 36
189 0.842 '197 o!§48
1 050
- '242
30
35
31.7
31 .7
42.4
36.3
20 . 1 0 049
23.8 0.059
516 2.25
630 2.54
158 1.05
151
189
21 1
41 0.127
18.5 0.098
133
174
515
464
48.3 0.276
84.9 0.5
67.0 0.318
40.0 0.177
33.0 0.146
52.0 0.253
3.24 0.015
<2.11 <0.0106
.346 1.96-
w^W
501
«/V 1
430
411
2,090
1^210
217 1.70
..,„. corrected to 12 percent CO,
°Not corrected to dry standard conditions.
^Average of two test runs.
°0ne test run only.
7-27
-------
TABLE 7-15. SUMMARY OF SULFUR DIOXIDE EMISSIONS FROM MWC FACILITIES
i I
Emissions
Fact 1 ity name
Mass burn
Waterwall
ESP
Baltimore, 1/85
Braintree
McKay Bay (Unit 1)
McKay Bay (Unit 3)
McKay Bay (Unit 4)a
Tulsa (Unit 1)
Tulsa (Unit 2)
CYC/FF
Gal latin
ESP/WS
Kure
SD/ESP
Munich0
WSH/DI/FF
Quebec •
Quebec
Quebec
Quebec
Wurzburg
SD/FF . (
Mar-ion County
Quebec
Quebec
Refractory
ESP
Philadelphia (NW1)
Philadelphia (NW2)
SD/FF
Tsushima
Starved air
No control .device
N. Little Rock, 10/78C
Prince Edward Island
Prince Edward Island
Prince Edward Island
Prince Edward island
ESP
Red Wing ,
RDF fired
ESP
Albany
Ham i 1 ton-Wen twortha
Ham i 1 ton-Wen tworth
Hami Iton-Wentwortha
Hami 1 ton-Wentwortha
Hamilton-Wentworth3
Niagara
^Average of two test runs.
JJ— , » ~ ,
Not corrected to dry standa
Test
condition
Normal
Norma 1
Norma 1
Norma 1
Norma 1
Norma 1
Norma 1
Norma I
• Norma 1
MSW only
110
125
140
200
Norma 1
Norma 1
140
140 i R.
Normal
Norma 1
Norma 1
Norma 1
Normal
Long
High
Low
Normal
Normal
F/None
F/Back
F/Back, low
front
H/Norie
H/Low back
Normal
rded Sd?tl"d SC
upstream
control
ppmdv at
12* C02
141
89.6
92.0
128
127
129
118
108
111
12.7
<29.3
61.0
83.0
75.0
. 87.0
.
>3 value becai
from
dev i ce
kg/Mg
feed
1.19
1,01
1.16
0.090
<0.39
0.662
0.840
0.759
0.966
ise separa
Emissions
downstream from
control device Control
ppmdv at kg/Mg effi-
12* C02 feed ciency, *
114 1 ^7
II" 1 • J t
136 1.00
98.6
1 1 1
177
94.9 0.995
80.9 0.917
141 1.75
13.5 0.098 87.1
21.7 . 0.281 76.4
4.86 96.2
10.8 91 5
28.2 78J
90 3 ?"*, 5
^w • -* £. J . J
209 1 .63
41.5 0.517
35.8 67.0
44.8 . 59.*6
401
375
0.040 0.0004 99.7
124 1.42
188 2.50
58.9
54.7
57.3
49.3
67.3
1.41
ite .values were' not reported.
7-28
-------
TABLE 7-16. SUMMARY OF OXIDES OF NITROGEN EMISSIONS FROM MWC FACILITIES
FacI 1 !ty name
Mass burn
Water wal 1
ESP
Baltimore, 1/85
Braintree
McKay Bay (Unit 1)
' McKay Bay (Unit 2)
McKay Bay (Unit 3)
McKay Bay (Unit 4)
Tu'lsa (Unit 1)
Tulsa (Unit 2)
CYC/FF
Gal latin
ESP/WS
Kure
WSH/DI/FF
Wurzburg-
SD/FF,
Marjon County
Refractory
ESP i
Philadelphia (NW1)
Philadelphia (NW2)
SD/FF •
Tsushima
Test
condition
Normal
Norma 1
Norma 1
Norma 1
Norma 1
Norma 1 .
Normal
Norma 1
Norma 1
Norma 1
Normal
Norma 1
Norma 1
Norma 1
Normal
Emissions . Emissions
upstream from downstream from
control device control device Control
ppmdv at kg/Mg ppmdv at kg/Mg effi-
12$ C02 feed 12* O>2 feed ciency, %
196 V.69
153 0.812
103
39
100
106
358 2.86
376 3.08
140 1.10
159 1.25 ' •
294 1.59
294 2.63
195
215
168 0.895
Starved air
•No control device
N. Little Rock, 10/783 Normal
Prince Edward Island Normal
Prince Edward Island Long
Prince Edward Island High
Prince Edward Island Low
ESP
Red Wing Normal
TuscaIoosa NormaI
240
309
271
258
292
1.84
2.41
1.97
1.88
2.33
255
278
2.10
1.92
RDF f II red
ESP i
Albany
Niagara
. ,
Normal
Normal
f
263 2.45
1.96
"Not corrected to dry standard conditions
7-29
-------
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