Report
Abstracts
MAR 78
               nta/ £
        United States Environmental Protection Agency
        Research Triangle Park, North Carolina 27711

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  ^ '       UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
             Industrial Environmental Research Laboratory
                     Research Triangle Park, North Carolina 27711
                              March 1978
     The attached abstracts (EPA Forms 2220-1) represent reports
  that have been issued through EPA's Industrial Environmental
  Research Laboratory during the past month.  They are sent to you
  because of the indication that you are interested in our multimedia
  activities relating to the control of environmental pollution.

     If any of the abstracts interest you (and you desire the full
  reports), the reports should be available (prepaid) in 6-8 weeks
  from the National Technical Information Service, U.S. Department
  of Commerce, 5285 Port Royal Road, Springfield, Virginia  22151
  (phone 703/321-8543).

     If you desire either to discontinue receiving these monthly
  abstracts, or to nominate additional recipients, please fill in the
  required information below, as well as the return address block
  on  the reverse hereof,  and return the sheet to us.
                                   Sincerely yours,
                                      m/K.. Bur chard
                                   Director
  Encl:  (17)

  (  )  Please discontinue sending these abstracts to me.

  (  )  Please start sending your monthly abstracts to the addressees
      indicated below (complete addresses, please):
                                 -1-

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(Please include ZIP code)
                                                                       PLACE
                                                                       STAMP
                                                                        HERE
                      To:  U.S. Environmental Protection Agency
                           Office of Research and Development
                           Industrial Environmental Research Laboratory
                           Research Triangle Park, N.C.  27711

                      Attn: Technical Information Coordinator
                           Mail Drop 64
                   (Fold on dotted lines and seal before mailing)
                                  -2-

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                                TECHNICAL REPORT DATA
                          (Please read Instructions on the reverse before completing)
1. REPORT NO.
 EPA-600/2-77-I87b
                           2.
                                                       3. RECIPIENT'S ACCESSION* NO.
4. TITLE AND SUBTITLE
Emission Testing and Evaluation of Ford/Koppers
 Coke Pushing Control System; Volume II. Appendices
                                    5. REPORT DATE
                                      September 1977
                                    6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
         Fred Cooper, Thomas Loch, John Mutchler,
and Jane Vecchio (Clayton Environmental Consultants,
                                      	  Inc.)
                                                       8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Ford Motor Company
The American Road
Dearborn, Michigan  48121
                                                       10. PROGRAM ELEMENT NO.
                                     1AB604
                                     11. CONTRACT/GRANT NO.
                                     68-02-0630
12. SPONSORING AGENCY NAME AND ADDRESS
                                                       13. TYPE OF REPORT AND PERIOD COVERED
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC  27711
                                     Final:  12/73-8/77
                                     14. SPONSORING AGENCY CODE
                                      EPA/600/13
15. SUPPLEMENTARY NOTES J.ERL-RTP project officer for this report is Norman Plaks, Mail
Drop 62, 919/541-2733.
16. ABSTRACT
          The report documents a field testing and engineering evaluation of the per-
formance of a retrofitted, mobile-hood, high-energy-scrubber control system, abating
coke-side pushing emissions from a 58-oven coke battery.  It documents the venturi-
scrubber inlet and outlet emission rates, as well as emission factors for filterable and
condensible particulate, sulfur dioxide, sulfur trioxide,  total sulfur oxides, carbon
monoxide, nitrogen oxides, benzene, benzene,and homologues, total light hydrocarbons
methane and homologues,  and  ethylene and homologues.  Results indicate that the
mobile hood collects  particulate emissions resulting from green and clean pushes at
22% to 54% efficiencies, respectively,  or from 30% to 92%,  respectively, using two
different estimating techniques.  Scrubber  performance averaged 99.3% for particulate
emissions captured in the hood.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                 DESCRIPTORS
                                           b.lDENTIFIERS/OPEN ENDED TERMS
                                                 c. COS AT I Field/Group
Air Pollution
Scrubbers
Coke
Coking
Emission
Dust
Iron and Steel Industry
Air Pollution Control
Stationary Sources
Coke Pushing
Particulate
13 B
07A
21D
13 H

11G
11F
13. DISTRIBUTION STATEMENT

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                        19. SECURITY CLASS (This Report)
                         Unclassified
                         21. NO. OF PAGES
                             600
                        20. SECURITY CLASS (Thispage)
                         Unclassified
                                                 22. PRICE
EPA Form 2220-1 (9-73)
                                         -3-

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                                TECHNICAL REPORT DATA
                         (Please read /nuructions on the reverse before completing)
1. REPORT NO.
 EPA-600/2-77-218
                           2.
                                                      3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
 Development of Technology for Controlling BOP
    Charging Emissions
            5. REPORT DATE
             October 1977
            6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
                                                      3. PERFORMING ORGANIZATION REPORT NO.
 K.E.  Caine, Jr.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
 National Steel Corporation
 Research and Development Department
 P'.O. Box 431
 Weirton. West Virginia  26062	
            10. PROGRAM ELEMENT NO.
            1AB604; ROAP 21AQR-05
            11. CONTRACT/GRANT NO.
            68-02-1370
 12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC 27711
            13. TYPE OF REPORT AND PERIOD COVERED
            Final: 6/73-12/76	
            14. SPONSORING AGENCY CODE
             EPA/600/13
 15. SUPPLEMENTARY NOTES TERL-RTP project officer for this
 Mail Drop 62, 919/541-2733.
         report is Robert C. McCrillis ,
 i6. ABSTRACT
              reporj. gives results of a. study of the basic oxygen process (BOP) hot
 metal charging emission control technology, conducted with a 900 kg pilot vessel
 designed for the experiments. Complete instrumentation was provided to measure
 the emissions, the effectiveness of the various systems investigated, and the BOP
 operating parameters. Twenty heats were made: four had no emission controls oper-
 ating, to establish base line conditions; three used a slot hood;  six used inert gas
 purging of the vessel, to suppress emissions at the source; two were to evaluate the
 closure plate concept: two were  launder pours (pouring through the vessel hood); two
 were tests of a canopy hood; and the last was an evaluation of slow hot metal pouring.
 These tests showed that: a means of minimizing kish carryover will reduce emissions
 slot hoods and gas purging are not practical; systems such as closure plates and
 launders, which allow the vessel to remain under the main hood,  are effective; and
 canopy hoods are effective, if large enough. The study also included: tabulation of
 domestic BOP shops; an historical review of BOP steelmaking; the influence of scrap
 type on the type and amount of potential emissions; a survey of  BOP charging emis-
 sion controls in use or which have been tried; and emission tests  of a production BOP
 vessel during hot metal charging.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                                          b.IDENTIFIERS/OPEN ENDED TERMS
                        c.  COSATI Held/Group
 Air Pollution         Metal Scrap
 Iron and Steel Industry
 Steel Making
 Basic Converters
 Oxygen Blown Converters
 Charging
Air Pollution Control
Stationary Sources
BOP
Hot Metal Charging
13B
11F
13H
13. DISTRIBUTION STATEMf.NT
 Unlimited
                                          19. SECURITY CLASS (Tliis Report)
                                           Unclassified
                                                                   21. NO. OF PAGES
                              166
JO. SECURITY CLASS (Thispage)
Unclassified
                        22. PRICG
EPA Form 2220-1 (9-73)

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                                TECHNICAL REPORT DATA
                         (Please read Instructions on the reverse before completing)
 . REPORT NO.
 EPA-800/2-77-231
                           2.
                                                      3. RECIPIENT'S ACCESSION-NO.
t. TITLE AND SUBTITLE
Blast Furnace Cast House Emission Control
             5. REPORT DATE
              November 1977
   Technology Assessment
             6. PERFORMING ORGANIZATION CODE
. AUTHOR(S)

William P. May
                                                      8. PERFORMING ORGANIZATION REPORT NO.
». PERFORMING ORGANIZATION NAME AND ADDRESS
Betz Environmental Engineers, Inc.
One Plymouth Meeting Hall
Plymouth Meeting, Pennsylvania  19462
                                                      10. PROGRAM ELEMENT NO.
              1AB604
             11. CONTRACT/GRANT NO.
              68-02-2123
12. SPONSORING AGENCY NAME AND ADDRESS
EPA, Office of Research and Development
Industrial Environmental Research Laboratory
Research Triangle Park, NC 27711
             13. TYPE OF REPORT AND PERIOD COVERED
              Final; 9/75-6/77	
             14. SPONSORING AGENCY CODE
               EPA/600/13
is. SUPPLEMENTARY NOTES J.ERL-RTP project officer for this report is Robert C. McCrillis,
Mail Drop 62, 919/541-2733. NTE No. PB 276999/AS has been assigned.
 . ABSTRACT
              s|.u(jy des cr ibes the state-of-the-art of controlling fumes escaping from
blast furnace cast houses. Background information is based on: a study of existing
literature; visits to blast furnaces in the U. S. , Japan, and Europe; meetings with an
ad hoc group of experienced blast furnace operators  and engineers appointed by the
American Iron and Steel Institute; and a questionnaire sent by AISI to all its members
(the  questionnaire resulted in operating and physical characteristics data on 151
standing blast furnaces).  The limited emissions data available at the start of the
study had been obtained through the use of various rather imprecise methods .  To
obtain additional more precise data, approval was obtained from Dominion Foundries
and Steel,  Ltd. ,  to sample emissions from its No. 1 blast furnace cast house using
EPA sampling methods.  (This furnace employs full emissions  control using a total
cast house evacuation technique. ) Existing cast houses  were classed according to
major factors influencing control scheme selection.  For yet-to-be-design cast houses
suggestions are made for optimizing the integration of cast house emission control.
For  both retrofit and new classes , technology gaps are  identified and the nature and
scope of suitable development programs are proposed to fill these gaps.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                                          b.lOENTIFIERS/OPEN ENDED TERMS
                          c. COSATi Field/Group
Air Pollution
Iron and Steel Industry
Emission
Fumes
Blast Furnaces
Casting
  Air Pollution Control
  Stationary Sources
  Cast Houses
13B
11F
                          13 H
18. DISTRIBUTION STATEMENT
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                                           19. SECURITY CLASS (This Report)
                                           Unclassified
                          21. NO. OF PAGES
                              316
 20. SECURITY CLASS (Thispage)
  Unclassified
                          22. PRICE
EPA Form 2220-1 (9-73)
-5-

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                                TECHNICAL REPORT DATA
                         (Please read Imintctions on the reverse before completing)
 1. REPORT NO.
 EPA-600/2-77-238
                           2.
                                                      3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
 Fine Particle Collection by a Flux-Force/Condensa-
    tion Scrubber: Pilot Demonstration
                                                      5. REPORT DATE
                                 December 1977
                                6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
                                                      8. PERFORMING ORGANIZATION REPORT NO.
 Seymour Calve rt and Shamim Gandhi
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Air Pollution Technology, Inc.
4901 Morena Boulevard, Suite 402
San Diego, California  92117
                                 10. PROGRAM ELEMENT NO.
                                 1AB012; ROAP 21ADL-002
                                 11. CONTRACT/GRANT NO.
                                 68-02-1869
 12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC 27711
                                 13. TYPE OF REPORT AND PERIOD COVERED
                                 Final: 6/74-6/77	
                                 14. SPONSORING AGENCY CODE
                                  EPA/600/13
 is.SUPPLEMENTAR-Y NOTES IERL-RTP project officer for this report is Dale L.  Harmon,
 Mail Drop 61, 919/541-2925.
 is. ABSTRACTTne report gives results of a pilot-scale demonstration of flux-force/conden-
 sation (FF/C) scrubbing for fine particle control,  carried out on a secondary metal
 recovery furnace. Results were consistent with those of preceding laboratory bench-
 scale and pilot-plant studies. The system was generally capable of 90-95% efficiency
 on particles with amass median aerodynamic diameter of 0.7-0. 8 micrometers A,
 achieved with a 68 cm W.C. gas-phase pressure drop. A conventional high energy
 scrubber without FF/C effects would require pressure drops of roughly 250  cm
 W. C. for 90% and 535 cm W. C.  for 95% particle collection efficiency.  FF/C effects
 are .those which accompany the condensation of water vapor from the gas and are
 generally caused by contacting hot humid gas with  colder liquid and/or by injecting
 steam into saturated gas. Mathematical models have been developed for predicting
 FF/C effects and for use in scrubber system design.  Agreement between the model
 predictions and experimental results was  good. The report gives FF/C system design
 details,  experimental results, analysis of results, description of mathematical
 models, design of an optimized system, cost estimates, and recommendations  for
 future research.
 7.
                             KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                     b.lDENTIFIERS/OPEN ENDED TERMS  C. COSATI Field/Group
Air Pollution
Scrubbers
Condensing
Dust
Iron and Steel
   Industry
Furnaces
Mathematical
 Models
Air Pollution Control
Stationary Sources
Flux- For ce/Condens a-
 tion Scrubbers
Particulate
Secondary Metal Reco-
 verv
13B
07A
07D
11G

L1F
L3A
12A
 3. DISTRIBUTION STATEMENT

 Unlimited
                     19. SECURITY CLASS (This Report)
                     Unclassified
                        21. NO. OF PAGES
                            195
                     20. SECURITY CLASS (Thispage)
                     Unclassified
                                             22. PRICE
EPA Form 2220-1 (9-73)
                   -6-

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                                TECHNICAL REPORT DATA
                         (Please read Inuniciions on the reverse before completing)
 . RCPORT NO.
 EPA-600/7-77-108
                           2.
                                                      3. RECIPIENT'S ACCESSION NO.
 . TITLE AND SUBTITLE
 tudy of a   Thermal Aerosol Oil Burner
            5. REPORT DATE
            September 1977
                                                      6. PERFORMING ORGANIZATION CODE
 . AUTHOR(S)
 r.E. Janssen, J.J. Glatzel, E.R. Wabasha, and
   U. Bonne
                                                      8. PERFORMING ORGANIZATION REPORT NO.
 . PERFORMING ORGANIZATION NAME AND ADDRESS
Honeywell, Inc.
 0701 Lyndale Avenue, South
Bloomington, Minnesota  55420
                                                      10. PROGRAM ELEMENT NO.
            EHE624
            11. CONTRACT/GRANT NO.

            68-02-2194
 2. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial- Environmental Research Laboratory
 Research Triangle  Park, NC 27711
            13. TYPE OF REPORT AND PERIOD COVERED
            Final; 9/76-5/77
            14. SPONSORING AGENCY CODE
             EPA/600/13
15.SUPPLEMENTARY NOTES IERL_RTp project officer for this report is Robert E. Hall,  Mail
Drop 65, 919/541-2477.
i6. ABSTRACT
               repOrt gives results of a study of a thermal aerosol oil burner, aimed
at counteracting the poor atomization and excess burner capacity that are known to
reduce  seasonal efficiency and contribute to excess emissions in residential oil
burners. Generation of a thermal aerosol of the fuel was shown to improve combustion
in terms of: (1) increased quantity and volume of fuel droplets 1 micrometer and
smaller; (2) permitted firing rate reduction in standard nozzles of 50 to 70%; (3) when
combined with swirl (swirl parameter = 4. 5), gave increased combustion efficiency
by permitting operation at 2% flue oxygen with nonluminous flame, zero Bacharach
smol
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                                TECHNICAL REPORT DATA
                         (Please read Instructions on the reverse before completing)
1. REPORT NO.
 EPA-SOO/7-77-117
                           2.
                                                       3. RECIPIENT'S ACCESSION NO.
4. T.TLE AND SUBTITLE overfire Air Technology for Tangen-
tially Fired Utility Boilers  Burning Western U.S.  Coal
              5. REPORT DATE
              October 1977
                                                       6. PERFORMING ORGANIZATION CODE
         Richard L. Burrington, John D. Cavers,
and Ambrose P.  Selker
                                                       8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
C-E Power Systems
Combustion Engineering, Inc.
1000 Prospect Hill Road
Winds or. Connecticut 06095	
              10. PROGRAM ELEMENT NO.
              EHE624A
              11. CONTRACT/GRANT NO.
              68-02-1486
12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC  27711
                                                       13. TYPE OF REPORT AND PERIOD COVERED
              Final; 6/74-3/77
              14. SPONSORING AGENCY CODE
                EPA/600/13
15. SUPPLEMENTARY NOTES  JERL-RTP project officer for this report is David G.  Lachapelle,
Mail Drop 65, 919/541-2236. NT1S No.  PB 277012/AS has been assigned.
16. ABSTRACT
                     gjves results of an investigation and evaluation of the effective-
ness of overfire air in reducing NOx emissions from tangentially fired boilers burning
Western U.S. coal. Results are compared with those obtained during phase II,  'Pro-
gram for Reduction of NOx from Tangentially Coal Fired Boilers,' EPA contract 68-
02-1367. Both programs investigated the effect that variations in excess air,  unit slag-
ging, load,  and overfire air had on unit performance and emissions. The effect of
biasing combustion air through various out-of-service fuel nozzle elevations was also
investigated. The effect of overfire air operation on waterwall corrosion potential was
evaluated during  30-day baseline and overfire air  corrosion coupon tests. Overfire
air operation for low NOx optimization did not significantly increase corrosion coupon
degradation. Overfire air operation and reductions in excess  air levels were  effective
in reducing NOx emissions. NOx reductions of 20-30% were obtained when operating
with 15-20% overfire air. These reductions occurred with the boilers operating at a
total unit excess  air of about 15-25% % measured at the economizer  outlet.  Unit loading
exhibited a minimal effect on NOx emissions.  Waterwall slag conditions had wide and
inconsistent effects  on NOx emission levels.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                 DESCRIPTORS
                                           b.lDENTIFIERS/OPEN ENDED TERMS
                           c. COSATl Field/Group
Air Pollution
STitrogen Oxides
Combustion Control
 toilers
 Utilities
  Air Pollution Control
  Stationary Sources
  NOx Reduction
  Tangential Firing
  Combustion Modification
  Overfire Air
                                                                    13B
                                                                    07B
                                                                    21B
                                                                    2 ID
                                                                    ISA
18. DISTRIBUTION STATEMENT

 Unlimited
                                           19. SECURITY CLASS (This Report)
                                           Unclassified
                           21. NO. OF PAGES
                               332
                                           20. SECURITY CLASS (Thispage)
                                           Unclassified
                                                                    22. PRICE
EPA Form 2220-1 (9-73)
-8-

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                                TECHNICAL REPORT DATA
                         (Please read lutlructions on the reverse before completing/
 . REPORT NO.
 EPA-800/7-77-138
                           2.
                                                      3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
Supportive Studies in Fluidized-Bed Combustion
                                5. REPORT DATE
                                 December 1977
                                                      6. PERFORMING ORGANIZATION CODE
 AVJTHOR(S'A. Jonke.G. Vogel.I. Johns on, S. Lee,J. Lenc,
A. Lescarret,J. Montagna, F. Nunes, J. Shearer, R. Sny-
der.G. Smith. W. Swift. F. Teats. C.Turner. I. Wilson
                                                      8. PERFORMING ORGANIZATION REPORT NO.
 . PERFORMING ORGANIZATION NAME AND ADDRESS
Argonne National Laboratory
9700 South Cass Avenue
Argonne, Illinois 60439
                                 10. PROGRAM ELEMENT NO.
                                 EHE623A
                                 11. CONTRACT/GRANT NO.
                                 EPA Interagency Agreement
                                 IAG-D5-E681
12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC 27711
                                 13. TYPE OF REPORT AND PERIOD COVERED
                                 Annual: 7/76-6/77	
                                 14. SPONSORING AGENCY CODE
                                  EPA/600/13
15. SUPPLEMENTARY NOTES
        project officer is Walter B. Steen, Mail Drop 61. 919/
 • v. w. - «-...._.. ..,.. . . , v . — _ f . . . v JJ — A V .ft. .A.  F* VJ ^**^ » V-** *V*W*. U~f V * H,^V^ JL  <•—'• P—f VVi» WAA * AVAdftiXJL A^* *J +f  ^J
 541-2825. Previous  report in this series was EPA-800/7-76-019.  NTIS No. PB
 276974/AS has been assigned.
16. ABSTRACT
              report gives results of studies supporting the development of atmos-
pheric and pressurized fluidized-bed combustion (FBC) of coal.  It includes laboratory
and bench-scale studies to provide needed information on combustion optimization,
regeneration process development, solid waste disposal, synthetic SO2-sorbent stu-
dies, emission  control and other  tasks. It includes characterization of a variety of
limestone and dolomites from various parts of the U.S. for suitability in FB combus-
tors. Reduction in solid waste volumes to reduce the environmental impact of the
waste sulfated limestone is a major goal of this program. These studies are to supply
data essential for the application of FBC units to public utility and industrial systems.
The report gives information on: 10- cycle combustion-regeneration PDU experiments
using Greer limestone and Tymochtee dolomite, bed def luidization , flowsheet develop-
ment, preparation of synthetic SO2-sorbents containing metal oxides, limestone char-
acterization , coal combustion reactions , the enhancement of limestone sulf ation by
NaCl, evaluation of on-line particle size analyzers, and status of flue gas cleaning
studies .
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                 DESCRIPTORS
                                          b.lDENTIFIERS/OPEN ENDED TERMS
                                             c. COSATI Field/Group
 Air Pollution
 Coal
 Combustion
 Fluidized-bed
  Processing
 Regeneration
Waste Disposal
Sulfur Oxides
Limestone
Dolomite  (Rock)
Sodium Chloride
Air Pollution Control
Stationary Sources
Fluidized-bed Combus-
 tion
13B
21D      07B
21B      08G

13H,07A
 18. DISTRIBUTION STATEMENT

 Unlimited
                     19. SECURITY CLASS (This Report)
                     Unclassified
                        21. NO. OF PAGES
                             212
                     20. SECUFtlTY CLASS (This page I
                     Unclassified
                                             22. PRICE
EPA Form 2220-1 (9-73)
                   -9-

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                                TECHNICAL REPORT DATA
                          (Please read Instructions on the reverse before completing)
 1. REPORT NO.
 EPA-600/7-77-140
                           2.
                                                       3. RECIPIENT'S ACCESSION-NO.
4. TITLE AND SUBTITLE
 Particulate Control with Cleanable Cartridge Filters
    Using Double-Layer Media
                                                       5. REPORT DATE
                                                        December 1977
                                                       6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
William J. Krisko and Michael A, Shackleton
                                                       8. PERFORMING ORGANIZATION REPORT NO.

                                                       EPA-001
9. PERFORMING ORGANIZATION NAME AND ADDRESS
 Donaldson Company,  Inc.
 P.O.  Box 1299
 Minneapolis, Minnesota 55440
                                                       10. PROGRAM ELEMENT NO.
                                                       1AB012; ROAP 21ADL-029
                                                       11. CONTRACT/GRANT NO.

                                                       68-02-1878
 12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC  27711
                                                       13. TYPE OF REPORT AND PERIOD COVERED
                                                       Final: 6/75-10/77	
                                                       14. SPONSORING AGENCY CODE
                                                        EPA/600/13
 is.SUPPLEMENTARY NOTEST£RL-RTP project officer is Dennis C. Drehmel, Mail Drop 61,
 919/541-292 &. NTB No.  PB 276976/AS has been assigned.
is. ABSTRACT
               repOrt gives results of a detailed assessment of the feasibility of a
 new concept in fine particle filtration, nonwoven, double -mat, cartridge filters.  The
 filter consists of a fine fiber filtration layer supported by a porous substrate providing
 physical strength to the resulting filtration media. A theoretical  basis for fine par-
 ticle control with this media is presented. Test results with 0. 3 micrometer DOP
 smoke confirmed that the design objective of 90% collection efficiency was obtainable.
 Preliminary economic analysis  indicates that the cartridge filter will be less costly
 than the standard baghouse. The saving is a result of the smaller  system possible
 with the pleated cartridge and the potentially higher air-to- cloth ratios with the fine
 fiber media. The analyses comprised Phase I of the contract. Phase n evaluated the
 fine particle control characteristics of the media in a pulse -jet cleaning cartridge
 configuration.  Both laboratory and field tests proved the media capable of high dust
 removal efficiency of fine particles  (<3 micrometers) while achieving good  pulse- jet
 cleaning characteristics.
17.
                              KEY WORDS AND DOCUMENT ANALYSIS
                 DESCRIPTORS
                                           b.IDENTIFIERS/OPEN ENDED TERMS
                                                                   c.  COSATI Field/Group
Air Pollution
Dust Control
Smoke
Filtration
Emission
Nonwoven Fabrics
Scrubbers
                      Kilns
                      Furnaces
                      Electrostatic Pre-
                       cipitation
                      Calcium Oxides
Air Pollution Control
Stationary Sources
Particulates
Fabric Filters
Double Mat Filters
Cartridge Filters
Baghouses	
13B

21B
07D

HE
13A
13A
13H
07B
18. DISTRIBUTION STATEMENT

 Unlimited
                                           19. SECURITY CLASS (ThisReport)
                                           Unclassified
                         21. NO. OF PAGES
                                196
                                          20. SECURITY CLASS (Thispage)
                                           Unclassified
                                                                   22. PRICE
EPA Form 2220-1 (9-73)
                                         -10-

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                                TECHNICAL REPORT DATA
                         (Please read lauructwns on the reverse before completing)
 . REPORT NO.
 EPA-600/7-77-148
                           2.
                                                      3. RECIPIENT'S ACCESSION NO.
 . TITLE AND SUBTITLE
Second Symposium on Fugitive Emissions:
Measurement and Control (May 1977, Houston, Texas)
              .. REPORT DATE
              December 1977
             6. PERFORMING ORGANIZATION CODE
 . AUTHORIS)

 J. King, Compiler
                                                      8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
 TRC--The Research Corporation of New England
 125 Silas Deane Highway
 Wethersfield, Connecticut  06109
             10. PROGRAM ELEMENT NO.
             INE624
             11. CONTRACT/GRANT NO,

             68-02-2133
12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC 27711
              13. TYPE OF REPORT AND PERIOD COVERED
              Proceedings: 4-10/77
              14. SPONSORING AGENCY CODE
               EPA/600/13
15. SUPPLEMENTARY NOTES Project officer Statnick is no longer with IERL-RTP; for details
contact D. Bruce Harris, Mail Drop 62, 919/541-2557. NT1S No.  PB 276973/AS has
been assigned.	._.
  . ABSTRACT
              procee(jings are a compilation of technical papers prepared for presen-
 tation at the Second Symposium on Fugitive Emissions,  May 23-25, 1977, Houston,
 Texas.  The papers discuss the scope and impact of fugitive emissions (non-point
 sources) and present techniques which have been used the measure these emissions.
 Fugitive emissions control technologies are also discussed.
17.
                              KEY WORDS AND DOCUMENT ANALYSIS
a.
                 DESCRIPTORS
                                           b.lDENTIFIERS/OPEN ENDED TERMS
                            COSATI Field/Group
 Pollution
 Emission
 Industrial Processes
 Dust
 Water
 Measurement
  Pollution Control
  Stationary Sources
  Fugitive Emissions
  Non-point Sources
  Particulates
13B

13H
11G
07B
14B
 18. DISTRIBUTION STATEMENT

 Unlimited
  19. SECURITY CLASS (This Report)
  Unclassified
21. NO. OF PAGES
  544
  2O. SECURITY CLASS (This page/
  Unclassified
                          22. PRICE
EPA Form 2220-1 (9-73)
-11-

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                                TECHNICAL REPORT DATA
                          (Please reftd Instructions on the rcvcne before completing)
1. REPORT NO.
 EPA-600/7-78-003
                           2.
                                                      3. RECIPIENT'S ACCESSION' NO.
4. TITLE AND SUBTITLE
Environmental Overview of Texas Lignite
   Development
                                 5. REPORT DATE
                                 January 1978
                                 6. PERFORMING ORGANIZATION CODE
7.AUTHOR.S, D.Harner, K.Holland, S.James, J.Lacy,
and J.Norton
                                                      8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Radian Corporation
8500 Shoal Creek Boulevard
Austin, Texas 78766
                                 10. PROGRAM ELEMENT NO.

                                 EHE624A
                                 11. CONTRACT/GRANT NO.

                                 68-02-2608, W.A. 6
12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC 27711
                                 13. TYPE OF REPORT AND PERIOD COVERED
                                 Task Final: 3-11/77	
                                 14. SPONSORING AGENCY CODE
                                   EPA/600/13
 15. SUPPLEMENTARY NOTES IERL.RTP

 541-2815.
             officer is Roger P. Hansen, Mail Drop 63, 919/
 is. ABSTRACT
                      gjves results of an investigation of possible effects of the devel-
opment of Texas lignite, forecast to the year 2000 and based on a 10- to 20-fold
increase of lignite utilization over 1976 levels. Lignite,  a low-grade coal, is projec-
ted to provide an energy resource estimated to exceed proven oil and gas reserves of
the State of Texas. Development of this resource will induce some major ecological,
social, and economic  effects throughout the entire Gulf Coast region.  Secondary
attention is given to effects in the other Gulf Coast states. Particular attention is paid
to possible sociocultural impacts of development to largely rural communities , air
and water quality problems , land use and reclamation practices , and plant siting pro-
cedures to lessen adverse effects of mine-mouth energy conversion facilities (lignite
is unsuitable for long  distance transport). Recommendations are offered for improved
state/Federal standard setting, improved forecasting and data collection, and for a
regional technology assessment of lignite development in the Gulf Coast states of
Arkansas, Louisiana, Alabama, Mississippi, and Texas.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                                           b.lDENTIFIERS/OPEN ENDED TERMS
                                              c.  COSATI Field/Group
 Pollution
 Lignite
 Energy
 Ecology
 Sociology
 Economic Analysis
Land Use
Reclamation
Plant Location
Pollution Control
Stationary Sources
Texas
Gulf Coast States
13B
21D,08G

06F
05K
05C
05A
18. DISTRIBUTION STATEMENT

 Unlimited
                     19. SECURITY CLASS (This Report)
                     Unclassified
                        21. NO. OF PAGES
                             235
                     20. SECURITY CLASS (This page)
                     Unclassified
                                              22. PRICE
EPA Form 2220-1 (9-73)
                   -12-

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                                TECHNICAL REPORT DATA
                         (Please read Instructions on the reverse before completing)
 REPORT NO.
 EPA-600/7-78-013
                           2.
                                                      3. RECIPIENT'S ACCESSION-NO.
. TITLE AND SUBTITLE

Characterization and Generation of Metal Aerosols
                                5. REPORT DATE
                                  February 1978
                                                      6. PERFORMING ORGANIZATION CODE
.AUTHOR
-------
                                TECHNICAL REPORT DATA
                         (Please read Instructions on the reverse before completing)
1. REPORT NO.
 EPA-600/7-78-015
                           2.
                                                      3. RECIPIENT'S ACCESSION-NO.
4. TITLE AND SUBTITLE SAM/IA: A Rapid Screening Method
 for Environmental Assessment of Fossil Energy
 Process Effluents
                                5. REPORT DATE
                                 February 1978
                                5. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)

 L.M. Schalit and K.J. Wolfe
                                                      3. PERFORMING ORGANIZATION REPORT NO.
                                 TR-77-50
9, PERFORMING ORGANIZATION NAME AND ADDRESS
 Acurex Corporation/Aerotherm Division
 485 Clyde Avenue
 Mountain View, California  94042
                                                      10. PROGRAM ELEMENT NO.
                                 EHE624
                                11. CONTRACT/GRANT NO.

                                68-02-2160 (T.D. 4)
 12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC 27711
                                13. TYPE OF REPORT AND PERIOD COVERED
                                 Task Final;  2-12/77    	
                                14.SPONSORING AGENCY CODE
                                  EPA/600/13
 15.SUPPLEMENTARY NOTES IERL-RTP project officer is JoshuaS. Bowen, Man Drop 65, 919/
 541-2470. .
 16. ABSTRACT
           The report describes the simplest member of a sequence of Source Analy-
 sis Models (SAMs) of increasing complexity and thoroughness which can be used as
 tools to help with one or more of five tasks involved in the environmental assessment
 of energy and industrial processes.  The tasks are: (1) ranking individual effluent
 streams by the expected toxicity of their discharges; (2) establishing sampling prio-
 rities; (3) determining problem pollutants; (4) recommending best multimedia control
 technology alternatives; and (5) recommending control/disposal technology  develop-
 ment programs. This model, SAM/IA,  is useful for rapidly  screening each effluent
 stream from a specific source: it is based on comparing effluent concentrations with
 the set of Minimum Acute Toxicity Effluent (MATE) criteria established by the EPA.
 The report explains the purposes of SAM/IA, the format used, and the MATE cri-
 teria against which pollutants are gauged.  Several examples are included to illus-
 trate specific facets of the model and of the format.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                                          b.lDENTIFIERS/OPEN ENDED TERMS
                                            c.  COSATI Field/Group
 Pollution
 Combustion Control
 Assessments
 Selection
 Fossil Fuels
 Energy Conversion
  Techniques	
Effluents
Properties
Toxicity
Pollution Control
Stationary Sources
Environmental Assess-
 ment
SAM/IA
Source Analysis Models
Rapid Screening Format
13B
21B
14B       06T

21D

10A
18. DISTRIBUTION STATEMENT

 Unlimited
                    19. SECURITY CLASS 11'nis Rtportl
                    Unclassified
                        21. NO. OF PAGtS
                           166
                    20. SECURITY CLASS (This page)
                    Unclassified
                                            22. PRICE
EPA Form 2220-1 (9-73)
                  -14-

-------
                                TECHNICAL REPORT DATA
                          (Please read Instructions on the reverse betore completing)
  REPORT HO.
  EPA-600/7-78-026
                           2.
                                                       3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
SR-52 Programmable Calculator Programs for
   Venturi Scrubbers and Electrostatic Precipitators
                                                       5. REPORT DATE
                                                        March 1978
                                 5. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)

Leslie E. Sparks
                                                       B. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
                                                       10. PROGRAM ELEMENT NO.
See Block 12.
                                                       EHE624
                                 11. CONTRACT/GRANT NO.
                                                       NA (Inhouse Report)
12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC  27711
                                 13. TYPE OF REPORT AND PERIOD COVERED
                                 Final; 6-8/77
                                 14. SPONSORING AGENCY CODE
                                  EPA/600/13
is. SUPPLEMENTARY NOTES Dr. Sparks' mail drop is 61; his phone is 919/541-2925.
IB. ABSTRACT
               repOrt provides useful tools for estimating particulate removal by
 venturi scrubbers and electrostatic precipitators. Detailed descriptions are given for
 programs to predict the penetration (one minus efficiency) for each device.  These
 programs are written specifically for the Texas Instruments SR-52 programmable
 calculator. Each program includes a general description of the mathematical model
 on which the program is based and the formulas and numerical techniques used in
 adapting the model to the SR-52. Numerical examples ,  program listing, and user
 instructions are included.
17.
                              KEY WORDS AND DOCUMENT ANALYSIS
a.
                 DESCRIPTORS
                                           b.lDENTIFIERS/OPEN ENDED TERMS
                                              c. COSATl Field/Group
 Air Pollution
 Dust
 Estimating
 Scrubbers
 Venturi Tubes
Programming
  Manuals
Calculators
Mathematical
  Models
Air Pollution Control
Stationary Sources
Particulate
Venturi Scrubbers
SR-52 Calculator
13B
11G
14B
07A
05B,09B
          12A
 Electrostatic Precipitators
18. DISTRIBUTION STATEMENT

 Unlimited
                     19. SECURITY CLASS (This Report}
                     Unclassified
                                                                    21. NO. OF PAGES
                             77
                     20. SECURITY CLASS (This page)
                     Unclassified
                                              22. PRICE
EPA Form 2220-1 (9-73)
                   -15-

-------
                                TECHNICAL REPORT DATA
                         (Please read Instructions on tiie reverse before completing)
1. REPORT NO:
  EPA-600/7-78-034
                           2.
                                                      3. RECIPIENT'S ACCESSION-NO.
4. TITLE AND SUBTITLE
 Physical Coal Cleaning for Utility Boiler SO2 Emission
   Control
                                5. REPORT DATE
                                 February 1978
                                6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)

E. H.Hall, L.Hoffman* J.Hoffman* and R. A.Schilling
                                                      8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
 Battelle Memorial Institute—Columbus Laboratories
 505 King Avenue
 Columbus, Ohio 43201
                                 10. PROGRAM ELEMENT NO.
                                 EHE623A
                                 11. CONTRACT/GRANT NO.

                                 68-02-2163, Task 851
12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC 27711
                                                       13. TYPE OF REPORT AND.PERIOD COVERED
                                                       Task Final: 7-12/77
                                 14. SPONSORING AGENCY CODE
                                  EPA/600/13
15. SUPPLEMENTARY NOTES  IERL-RTP project officer is James D.  Kilgroe,  Mail Drop 61,
919/541-2851. (*) Two authors are from the Hoffman-Munter Corp. , Silver Spring,
Maryland.	
 16. ABSTRACT
          The report examines physical coal cleaning as a control technique for sul-
 fur oxides emissions. It includes an analysis of the availability of low-sulfur coal and
 of coal cleanable to compliance levels for alternate New Source Performance Stan-
 dards (NSPS).  Various alternatives to physical coal  cleaning (such as chemical coal
 cleaning, coal conversion, and fluidized-bed combustion) are also examined with
 respect to alternate NSPS. Electric power supply and demand through 1985 are
 reviewed, as well as the technology, cost, and environmental overviews of physical
 and chemical coal cleaning techniques.  Since the report deals with engineering
 analyses  of available data and several technologies in design stages, references are
 somewhat limited.  Descriptions of the methodologies used and the sources of infor-
 mation are given in lieu of referenced published data in many cases.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                                          b.lDENTIFIERS/OPEN ENDED TERMS
                                             c.  COSATI Field/Group
Air Pollution
Coal
Cleaning
Utilities
Boilers
Sulfur Oxides
Fluidized-bed Pro-
  cessing
Coal Gasification
Electric Power
  Demand
Electric Power
  Generation
Air Pollution Control
Stationary Sources
Low-sulfur  Coal
Coal Conversion
13B
08G,21D  07A
13H
                         13A
                         07B
          2QC

          10A
13. DISTRIBUTION STATEMENT
 Unlimited
                                           19. SECURITY CLASS illiis Kepart/
                                           Unclassified
                                              21. NO. OF r-AG

                                                111
                     20. SECURITY CLASS (Tillspage)
                     Unclassified
                                              22. PRICE
EPA Form 2220-1 (9-73)
                   -16-

-------
                               TECHNICAL REPORT DATA
                         (Please read Instructions on the reverse before completing)
 REPORT NO.
 EPA-600/8-77-019
                           2.
                                                      3. RECIPIENT'S ACCESSION-NO.
 TITLE AND SUBTITLE
 controlling Pollution Through Combustion Research
                             5. REPORT DATE
                              December 1977
                                                      6. PERFORMING ORGANIZATION CODE
. AUTHOH(S)

NA
                                                      8. PERFORMING ORGANIZATION REPORT NO.
. PERFORMING ORGANIZATION NAME AND ADDRESS
Acurex Corp. /Aerotherm Division
485 Clyde Avenue
Mountain View, California  94042
                             10. PROGRAM ELEMENT NO.
                             EHE624
                             11. CONTRACT/GRANT NO.

                             68-02-2611, Task 5
12. SPONSORING AGENCY NAME AND ADDRESS
EPA,  Office of Research and Development
Industrial Environmental Research Laboratory
Research Triangle Park, NC  27711
                                                      13. TYPE OF REPORT AND PERIOD COVERED
                                                      Task Final;  6-8/77
                              14. SPONSORING AGENCY CODE
                               EPA/600/13
is.SUPPLEMENTARY NOTES IERL-RTP project officer is Robert E. Hall, Mail Drop 65,
919/541-2477. NTIS No. PB 276975/AS has been assigned.
16. ABSTRACT
The document provides background information about the Combustion Research
Branch (CRB) of EPA's Industrial Environmental Research Laboratory, Research
Triangle Park,  North Carolina.  The focus of CRB's programs is on reducing
emissions  of oxides of nitrogen, and simultaneously determining the effect on other
emissions  and on equipment performance. A program overview is provided with a
brief description of each major program area. A description of technology transfer
methods is given and future goals are discussed.
17.
                             KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                                          b.lDENTIFIERS/OPEN ENDED TERMS
                                             COSATI Field/Group
Air Pollution
Combustion Control
Research
Fossil Fuels
Nitrogen Oxides
Boilers
Industrial  Processes
Furnaces
Smoke
Dust
Internal Combus-
 tion Engines
Gas Turbines
Air Pollution Control
Stationary Sources
Particulate
Environmental Assess-
 ment
13B
2 IB
14B
2 ID
07B
13A
13H
11G

21G
13G
18. DISTRIBUTION STATEMENT

 Unlimited
                  19. SECURITY CLASS (ThisReport)
                  Unclassified
                        21. NO. OF PAGES
                           15
                  20. SECURITY CLASS (This page)
                  Unclassified
                                          22. PRICE
EPA Form 2220-1 (9-73)
                -17-

-------
                                TECHNICAL REPORT DATA
                          (Please read Intlructions on the reverse before completing)
1. REPORT NO.
  EPA-600/8-77-020b
                                                       3. RECIPIENT'S ACCESSION-NO.
4. TITLE AND SUBTITLE
Particulate Control Highlights: An Electrostatic
   Precipitator Performance Model
                                                       5. REPORT DATE
                               December 1977
                              6. PERFORMING ORGANIZATION CODE
7. AUTHORlS)
J. McDonald and L. Felix
                                                       8. PERFORMING ORGANIZATION REPORT NO.
                                                       SORI-EAS-77-675
3. PERFORMING ORGANIZATION NAME AND ADDRESS
Southern Research Institute
2000 Ninth Avenue, South
Birmingham, Alabama  35205
                               10. PROGRAM ELEMENT NO.

                               EHE624
                               11. CONTRACT/GRANT NO.
                               68-02-2114
12. SPONSORING AGENCY NAME AND ADDRESS
 EPA, Office of Research and Development
 Industrial Environmental Research Laboratory
 Research Triangle Park, NC  27711
                               13. TYPE OF REPORT AND PERIOD COVERED
                               Task Final; 11/76-11/77
                               14. SPONSORING AGENCY CODE
                                EPA/600/13
is.SUPPLEMENTARY NOTES jjSRL-RTP project officer is Dennis C. Drehmel, Mail Drop 61,
919/541-2925.
  ABSTRACT
              report des cribes a computerized mathematical model that can be used
to estimate the collection  efficiency of electrostatic precipitators  (ESPs) of different
designs, operating under various conditions.  (ESPs are widely used to control emis-
sions of fly ash and other  dusts from  industrial sources.) Mathematical expressions
based on theory are used to calculate electric fields and dust particle charging rates.
Empirical corrections are made for non-ideal effects such as a non-uniform gas
velocity distribution.  The model is expected to aid in improving ESP design and in
selecting optimum ESP operating conditions.
17.
                              KEY WORDS AND DOCUMENT ANALYSIS
                 DESCRIPTORS
                                           b.lDENTIFIERS/OPEN ENDED TERMS
                                           c.  COSATI Field/Group
Air Pollution
Electrostatic Precip-
    itators
Mathematical Models
Collection
Efficiency
Estimating
Fly Ash
Dust
Air Pollution Control
Stationary Sources
Collection Efficiency
Particulates
13B
                                            12A
14B
21B
11G
18. DISTRIBUTION STATEMENT

 Unlimited
                  19. SECURITY CLASS (This Report!
                   Unclassified
                                                                    21. NO. OF PAGES
                             14
                  20. SECURITY CLASS (Thispage)
                   Unclassified
                                            22. PRICE
EPA Form 2220-1 (9-73)
                 -18-

-------
TECHNICAL REPORT DATA
(Please read /nitrucrions on the reverse before completing)
1. REPORT NO.
EPA-600/8-77-020c
2.
4. TITLE AND SUBTITLE pj^j^^g Control Highlights '.
Advanced Concepts in Electrostatic Precipitators:
Particle Charging
7. AUTHORlS)
D. Pontius and W. Smith

9. PERFORMING ORGANIZATION NAME AND ADDRESS
Southern Research Institute
2000 Ninth Avenue, South
Birmingham, Alabama 35205
12. SPONSORING AGENCY NAME AND ADDRESS
EPA, Office of Research and Development
Industrial Environmental Research Laboratory
Research Triangle Park, NC 27711
3. RECIPIENT'S ACCESSION NO.
5. REPORT DATE
December 1977
6. PERFORMING ORGANIZATION CODE
8. PERFORMING ORGANIZATION REPORT NO.
SORI-EAS-77-676
1O. PROGRAM ELEMENT NO.
EHE624
1 1. CONTRACT/GRANT NO.
68-02-2114
13. TYPE OF REPORT AJMD PERIOD COVERED
Task Final; 11/76-11/77
14. SPONSORING AGENCY CODE
EPA/600/13
15. SUPPLEMENTARY NOTES JJERL-RTP project officer is Dennis C. Drehmel,
919/541-2925.
Mail Drop 61,
IB. ABSTRACT rj-^g rep0rt giV6s highlights of an EPA research program aimed at devel-
oping and verifying an accurate theory of particle charging for conditions that are
typically found in industrial electrostatic precipitators. A new theory was developed,
in which the thermal motion of ions is assumed to dominate the charging process . The
theory was shown to agree to within 15 percent of published experimental data. To
further verify the new theory , experimental determinations of particle charging were
made, using a mobility analyzer to find the end points of particle trajectories in an
electric field. For particles of 0.32 to 7 micrometers diameter, the agreement
between theory and experiment was within 20 percent.
17.
a. DESCRIPTORS
KEY WORDS AND DOCUMENT ANALYSIS
b.lDENTIFIERS/OPEN ENDED TERMS
Air Pollution Particles Air Pollution Control
Charged Particles Charging Stationary Sources
Electrostatic Precip- Dust Particle Charging
itators Thermal Motion
Ions Particulates
Ionic Mobility
18. DISTRIBUTION STATEMENT
Unlimited
EPA Form 2220-1 (9-73)
19. SECURITY CLASS (This Report)
Unclassified
20. SECURITY CLASS (This page)
Unclassified
-19-

c. COSATi Field/Group
13B
2 OH
11G
07D
20L
11
22. PRICE


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