Document zor1BY4vYBMBwEE67zQVqEEqm

'I 1 Lead Industries Association, Inc. -....- MX MmJtson Anemia New Vof*. M. V. 10017 TeUphcns; (lit) 37M0X0 r l. ! 1 .3 i .-i 1 Movaa&er 90, 1972 SUBJECT I MEW SOURCE PERFORMANCE STAMPARES TOR THE PRIMAJOf LEAD AND EXMC SMELTING INDUSTRIES TO THE MEMBERS Of THE LEAD XMDOSTRIXS ASSOCIATION. XMC. Attached is s report from tha ILZRO/LIA Envirorosantal Hsalth DepartMnt oo a Mating of tha EPA National Air Pollution Control Techniques Advisory Coemittee bald November 1, 1972. This was tha first Mating of this group to consider Maw Sourca Performance Standards for tha primary lead and sine SMlting industrlas. Mo affort was made hart to pinpoint spacific lead and sine amission standards, howevar, a 163 pegs docuMnt proposing such standards was circulated. (Saa susaary attached). For your information, a list of tha members of tha Advisory Committee, as wall as invited specialists, and EPA's estimate of new source amisaion control economics for tha lead and cine industries is also attached. A follow-up meeting is scheduled for December 14, 1972 at which time Haw Source Performance Standards will ha discussed end possibly recommended for the lead, sine and copper industries. Sincerely, JTSt lm Enclosures Jams t. Smith Secretary ( Manager N 3478 meeting report Pt#i Location i Attended By i Persona Prassnti Report Bvi Subject* November 1, 1972 Department of Commerce Building D. A. Lynam, XURO/LXA >. . Members V.t. Environmental Protaction Agsncy National Air Pollution Control Techniques Advisory Cocmittaa (saa attached Hat - Appendix 1). Invited Specialists to National Air Pollution Control Technique* Advisory Committee (saa attached list - Appendix 2). EPA staff including (sea Agenda-Appendix 4) i Don Walters, Director, Special Projects Steff-GielzMa Bruce Hogarth, Special Projects Co-ordinator -- Executive Secretary Don Godwin, Director, Standards Development and Implementation C. H. Darvin, Project Engineer for Lead 4 tine Industries N. P. Hamilton, Economic Analysis Branch C. W. Walsh. Office of Technical Planning end Co-ordination Jim Crowder, Special Projects Staff, Responsible for Non-ferrous Regulations. D. R. Lynaa, XLZRO/UA P.S. federal New Source Performance Standards for the Primary Lead and tine Smelting Induatriaa. On November 1, 1972, Donald R. Lyr.ac attended a meeting of the EPA National Air Pollution Control Techniques Advisory Committee, which was considering development of New Source Performance Standards fer the primary lead and sine smelting industry, "Standards of Performance for New Stationary Sources* are authorised in section ill of the Clean Air Act Amendment of 1970. The stated purpose of section 111 of the i Act is to prevent the general occurence of new air pollution problems by requiring the installation of the beat control techniques during initial construction. The standards are not to be applied tc existing sources but refer to modifications and new construction which is cooaenced sfter the publlrsticn of proposed regulations. Modification it defined as any physical change in the method of operation of a stationary source which increases the amount of any air pollutant emitted by the source or which results in the emission of any sir pollutant not pravlously emitted, EPA interprets section 111 as mandating batt control as opposed to normal, con ventional, or good control. Consideration of coat la applied as a modifier to evoid extremes. This meeting was described by EPA officials as a preliminary sasslon. A 163 page draft document entitled, "New Source Performance Standards, Technical Report Copper, Lead and Zinc Smelters," October 1972, has, howevsr, been prepared by EPA end distributed to the Members of the Advisory Committee, prior to the meeting. Because of the volume of this document, only the 'outline" has best* ancloaed ss part of this meeting report. However, we have a copy of the complete document. (see Appendix 3). 1 tav.vvai 'V -.v.J 5,-r N 3478.01 The approach which EPA haa taken in arriving at BSPS for tha Xaad and tine awaiting induitry la to control SOj amissions. It waa atatad that If tha gaa atraaa was claanad up aufflciantly for an acid plant opa ration, than tha partleulata a would ba adequately controlled. Tharafora, tha control strategy ravolvaa around control of EOj aalaaiona. La ad Smelting C. H. Darvln, EPA ataff, (aaa aganda, Appandix 4), ravlawad tha dona a tic laad smeltlng procaaaea and aedsslona, atatua of axiating calla ion control, and procaaa altamatlvaa that gana rata SOj at reaaa. Ba atatad that thay bad vial tad 6 facilltiaa in tha O.S. (3 in Hiaaourl, 1 in Idaho, 1 in Taxaa, and 1 in Montana) and 4 facilltiaa abroad (Swadan, Germany, franca, and 7). Ha lndicatad that than waa a alight indication of growth in tha laad lnduatry, Tha following amission figuraa woro quotad for laad sasltlng opa rational 80j - 365,000 Tona (74 of total SOj amtalions in C.t.) Particulataa - 67,000 Tona Tha control approach waa to ba concentrated on tha sintering oparation which was listed as constituting 90\ of tha emissions. Two racoaiandatlona of boat control procedures war* msdei Cam recirculation in tha sintering oparation. It was recoenended that the first gas stream (the gas at rean at tha beginning of tha sintering oparation) go to an acid plant and that a second gaa atraaa (at tha end of tha sintering oparation) ba recirculated. It was stated that tha second gaa stress would require a separata particulate collection system. 3. Use of Electric furnace. Tha following aconcealc analysis waa presented by N. f. Basil tom Structure - ASARCO (39% of '71 market), St. Jo# (34%), Missouri Laad Operating Co. (17%), Bunker Bill (30%). Production - 1966 1971 5 Year Annual Growth Rate 458.000 Tons 765.000 Tona capacity in 1971 Oonameptlon 1971 - ,000 Tons Approx. 7% Percent of Market Annual Growth Rata *66 - *71 Storage Batteries Gasoline Additives Pigments Ammunition Solder Other 47% 18% 6% 6% 5% 18% 8% 1% - 8% 2% - 3% - 7% V" t W. I I' H- si 3 o Eatlmsted Costs of Control to Meet NSPS for the Domestic lead Industry Tha EPA estimated coat* of control, a* presented at the Mating, ara r\-pre duced from tha report, "New Sourca Parfoneanc* Standard* Tachnlcal Raport- 1 Ooppar, Lead and Zinc Smelters,* and art attachad at an addendum to thla I meeting raport (aea Appendix S). T C. W. Walsh, EPA llatad tha Important issues at follow*! 1. Row to product a strong SO^ gas atraaa. 2. Recirculation aya ten saems to ba baat approach. 1, Should SOj amissions from blatt furnacaa ba oonaidarad. 4, Os# of alactrlc furnacaa. > Tha ganertl conaenaua seemed to ba that thara ahould ba no Halt on aalaaioo of particulataa. EPA lndlcatad that an alaborata SOj control syataa would alto control particulate aalaalona. Tha opinion waa alao expressed that Pb ahould not ba regulated undar part 2 of Saction 111 which deal* with health affecta. Such action would require tha atatas to aat standard# for all existing facilities. O EPA representative* stated that the Penarroya facility utilised complete recircu lation In the sintering operation. EPA representatives also guoted from "Lead Smelter Operation at N.V. Ketallurgic Hoboken S.A., Hoboken, Belgium," which appeared in AiME World Symposium on Wining and Metallurgy of lead and Zinc, Volume 11 Extractive Hetallurgy of lead and Zinc, 1970, where the following statement waa madei "By recirculating the gases, at least 99\ of the sulfur eliminated can ba recovered.* It appeared that tha EPA representative* interpreted tha 99% removal figure aa applying to total sulfur in the concentrate rather than 99% of tha sulfur eliminated in tha sintering operation as being recovered. This interpretation was corrected by tha invited specialists. Zinc Smelting C. H. Dervin, EPA staff, reviewed the domestic sine smelting processes and emissions status of existing emission control, and process alternatives that generate concentrated S02 streams. Eight O.S. facilities were visted (2 in Penn sylvania, 1 in Ohio, 2 in Oklahoma, 2 in Texas, 1 in Idaho) and 1 non-O.S. facilities were visted (2 in Germany and 1 in Prance). The O.S. production capacity was listed as 815,000 metric tons. Tha growth potential was listsd Ss stable. It was stated that KSPS should concentrate on the control of SO2 emissions frost tha roasting and sintering operations. The following production alternatives or equip ment modifications which can be used to facilitate tha control of 60^ amissions from sine saaltar operations war* listed by EPA. 1. Use of fluid-column roaster system which eliminates the requirement for sintering. 1 2. Use of a combination roast-sintering machine with gas recirculation to yield a strong SOj effluent stream which can be subjected to highfflciency SO removal. 3. 0s* of a electrolytic rinc extraction technique after pre-roastlng by modem equipment which generates a strong S0j atraaa. ! t t ' I*- it- & sc IfT I' > *. I: ?V' if''-' r IV k i: o * 4 'SM a m. r. Hamilton, EPA, presented a review of line anal tar economic prof11a. Yaar Ho. of rlrma Annual Production Capacity 1968 1975 (estimated) 10 6 1,300,000 Ton* 684,000 Ton* 47% Reduction la capacity Consumptiont 1971 Use Galvanising - Brass Products - Other Alloys Other Slab Osaa - Other Oses - 29% 9% 31% 7% 24% Annual Trand* In Slab tine Production and Import* for tha 0.8. 1966 - 1971 `I 5 Domestic foreign Total Scrap Total Smelter Pro- Ret Imports Ores Ores Primary Recycling auction of slab ;Zinc 1966 38% 36% 74% 6% 80% 20% 1971 35% 31% 66% 7% 73% 27% V Estimated Costs of Control to M*et KSPS for the Domestic Zinc-Industry 77m EPA estimated co*t* of control, a* presented at tha meeting, an ui reproduced from tha report, "New Source Performance Standard* Technical Report - Copper, Lead and zinc Smelter*,* and are attached a* an addendum to this meeting report (*ee Appendix 6). A review of sulfur oxide* emission control device* va* presented by T. A. ICittlaman, EPA. The presentation includedi 1. Dimethylaniline (OKA) Scrubbing 2. Sodium sulflte-bisulfita Scrubbing j 3. Calcium-based Scrubbing '3 4. Ammonia Scrubbing ! Statu* The general position of the advisory committee relating to NSPS for lead and alnc at the end of the meeting was that EPA had not obtained sufficient data from emission tasting of tha types of control systems which they had recommended. It was stated that sufficient emission test data on recommended control ayatems ware required in order to evaluate appropriateness of such systems as well as providing EPA with sufficient documentation should a NSPS be challenged by court action. Several members of the committee alao suggested that the economic considerations were not studied in sufficient detail. ' ` - 4 '5 Tisnma-Btitsa m fh i h n riffiW M fB Ih lih ii - f l fe: .. .. - . L f -i f -* .r r-.~~ - - - TM . -> Mr. Donald F. Valters Director, Special Projects Staff Stationary Source Pollution Control Program* Environmental Protection Agency Research Triangle Park, I.C. 27711 Mr. Cbarlaa M. Balnea Executive Engineer Matarlala Engineering Chrysler Corporation Box 1116, Dept. 5000 Highland Park, Michigan 18231 EXEornvr secretapt Mr. Villiat Munroe Chief, Bureau of Air Pollution Control Mr. Bruce Hogarth Special ProJacta Coordinator Stationary Sourca Pollution Control Programs Environmental Protection Agency lev Jersey 8tete Bureau of Air Pollution Control Department of Environmental Protection P. 0. Box 1390 Trenton, lev Jersey 08625 Research Triangle Park, I.C. 27711 Mr. Vincent D. Patton 1 MEMBERS Executive Director -3 Mr. John V. Blanton, General Manager State of Florida Air and Vatar Pollution Control Advanced Technology Programs Dept. 315 8. Calhoun Street General Electric Company Tallahassee, Plorlda 32301 Mail Drop E206 - Jimson Road Evandale, Ohio *5213 Dr. Robert V. Scott Coordinator far Conservation Mr. Charles M. Copley, Jr. Cosnlssloncr, Division of Air M Pollution Control City of St. Louis Technology Eaao Research * Engineering Co. F. 0. Box 215 Linden, lev Jersey . 07036 Roan *19 City Hell St. Louis. Missouri 63103 Dr. R. 8. Sboltea Environmental Engineer Mr. Rafael Crut Peres Associate Director for Air and Veter Resources Environmental Engineering Inc. 232* Southveet 3*th St. Gainesville, Plorlda 32601 Environmental Quality Board Ccomonvealth of Puerto Rico Seaturce, Puerto Rico 00910 1 Mr. Arthur R. Deaakoehler Air Pollution Control Officer Mr. V. M. Smith Director, Environmental Control Rational Steel Corporation Box *31, Room 159. General Office Velrton, Vest Virginia 26062 Puget Sound Air Pollution Control Agency *10 V. Harrison Street Seattle, Vaahlngton 98119 .s Dr. Aaron J. Teller, President Taller Environmental Systems, Inc. 295 Fifth Avenue Rev 7ork, R.T. 10016 Mr. George P. Perrerl Chief, Division of Compliance Bureau of Air Quality Control Maryland State Dept, of Health and Mental Hygiene Mr. A. J. von Prank Director, Air * Veter Pollution Control Allied Chemical Corporation 610 I. Bovard Street Baltimore, Maryland 21201 P. 0. Box 1057R Morrlatovn, Rev Jersey 07980 ; r M 3478.02 Appendix 1 HATIOKU. ACT POLLUTIOH CCWTROL TECHHIQUE3 APVI80RT COUCTTg MPCBOS Mr. Benjaaln f. Vale Adalnlatretor, torlronmantal Sclancaa Dlriilon Montana State Dept. of Health and Enrironaantal Sclaacaa Cogrvcll Building Halan*, Montana 59601 Mr. Kfcyaond L. Vlgglna Manager, Sfatea* DaralopaOBt Auto-Trol Corporation Anil, Colorado 6000S Dr. Roth f. V1mt CUlruii, Dapartaaot Of Physical Sclaacaa florid* International Onlraraltf Taaiaad Tr*ll Ml*!, florid* 331^ is ovnrter lull, 1972 1. Mr. Kenneth J. Rogers, Program Manager, RC/Beheo Byetsn Research-Cottrail, Bound Brook, B.J. (Linestooe scrubbing) : V\-' . 2. Mr. J. M. Henderson, Research Superintendent ASARCO, South Plainfield, I.J. (DM* system) '. 5. Mr. John B. Rloekholf "r Vtlbu - Pover Qua, lac.. Lakeland, Florid* (Acid plants and sodium aulfite-Msulfite scrubbing qrtUai) k. Mr. Ouj Bridtock. Senior Staff Engineer The Timmus Co. of Canada Ltd., Ontario, Canada (Flash smelters) 5 Mr. X. B. Marble, Jr., Consulting Engineer Metuchea, lew Jersey . (Electric furnaces) . 6. Mr. I. 0. X. Player Ccmlaco Ltd., Trail, 8. C., Canada ' (Aaoonla scrubbing) T. Mr. George B. Carr, Earlroomental Engineer Kiseourl Lead Operating Co., Boss, Missouri (Lead smelters) 8. Mr. Gary E. Welch, Director of Environmental Control St. Joe Mineral Corporation, Moaaca, Pennsylvania (line smelters) 9. Mr. Richard R. Hyde, Tice President Inspiration Copper Company, Inspiration, Arison* (Copper smelters) 10. Mr. Cene Baker, Manager-Plant Engineer Bunker Bill Company, Kellogg, Idaho (DC representative) 11. Mr. V. Eovard Vina, General Manager, Ievade Mines Division Ksnnecott Copper Corporation, McO111, Xevndn (AMC representative) 12. Mr. James T. Dunham, Staff Metallurgist U. 8. Bureau of Mines, Washington, D. C. (8O2 control systems) > t\ ff % 1 Wok-'.1^1'*' 1' N 3478.03 Annotated Outline for Technical Report Copper, Lead, and 11m Oneltere Appendix 3 TM document It * prellmlnary draft* It bat not been formally released by ETA and should not at tbit atast b oonatrued to represent Agency policy. It It being circulated for cc--int on lta technical accuracy tod policy Implications. 1.. 8UMKAKI OF THE PROPOSED SIAHDARDe Tbit tactloo will summarise tba Intent and requirements of tbt standards. If concentratioo atandarda ara proposed, for example, tha allovabla BOj aalaaloaa (la pjm) from tpaclflad consonant aaeltlng procattaa, or coablnatloea of tbaaa, would be ttatad. If the propoaad atandarda Halt sulfur and Iona froa ccmplate smelt ing facilities, atataaanta of tba marluina allovabla percentage of analtcr Input eulfur which can ba emitted, aloe* with requirements for measuring tpaclflad aatarlal Input and aalaalon streams, would ba appropriate. Thla aactioo will alao eumerita tba conceptual baa la of tba atandarda. Pri mary objectives ara tba oaa of procaaaaa vtdcb eliminate vaak BOj atraaaa and the application of sulfuric acid plants, nlat eliminators, and elaaental aulfur planta. Tba abaesea of partleulata atandarda, in thoae caaaa vbera aulfur dioxide aalaalon llaltatlooa will alaoltasaoualy require affective partleulata control, will ba noted. 2. DOMESTIC SKELTUO TECEJOLOCT MO EHSTUIO DCSSIOB COITROL Tba purpose of this section la to provlda an ovarrlav of domestic aaeltlng operations, l.a., aaalter locatlona, age of planta, origin and ahipaant of ora con centrates, artel production figures, types of equipment used, functions of ccnpcneatt aaeltlng procaaaaa, sources and quantities of aulfur dioxide ealsalo&a, partleulata emissions, and existing emission control devices. A discussion of tba availability of veil-controlled dearatie aaeltlng operations as sites for aalaalon taste which would establish a data bass for performance atandarda will ba Included. 3. DBOSntAZZD TECHXOLOGT FOR THE COXTROL OT EXZ8SI0R8 Tba applicability of aulfurle acid planta (single and double absorption), elemental sulfur planta, and scrubbing systems to tba control of S02 emissions from smelters will ba discussed. Tba ecrubbing systems, which can ba applied to vaak SOj streams. Include calcium-based, amionla, sodium sulflte-blsulfite, and dlmethylanlllne types. Achiev able SOj emission limits for tba control devices will ba documented. Several coaponent smelting processes, which have bean cosssirclally dsaooatrstsd and which ara amenable to high efficiency SOg amission control, will be described separately for copper, lead, and sine smelters. Tba ralatlonahlpa of these alterna tives to conventional smelting operations. Including process advantages and disadvan tages of tba alternatives, will be Indicated. 6. - ; fry-' v- ... .* " ^'r/'^tt^w*-;?'??'-*''- ` jfs-. Trg&fyfflx&sP' ,%&t' 't't:liA796 BT^ S" ?a i* * i. .j 'J j^ It. RATIQIAU FOR THX PROPOSE) 6TAIBARD6 Appondix 3 ' Th* purpose of this section it to examine taolttr control strategies tad to illustrate resultant BOj aalasloo levels by means of modal grase-roots emeltere. Difference* In amlttlons, investment costs. tad amlatloa control eottt betveen modal smelter* tad taolttrt reprteentatlv# of current domestic technology will he developed! the alternetlvei trill Include tingle absorption acid plants, double absorption acid pleate, tod ecrubblng of week S02 ttretat generated by conventional prooett equipment, riaally, the aereral method* of exprtttiag taelter standards will he attained. 5. BCI8TXS0 BC5SI0I COITROL RXOODATZCS8 A ditcuttloa of existing etate control regulatloaa far eaeltere, and aaaltar sulfuric acid plant* t will he pretested. Coepllance datea and federal reqnlrsmentt propoted through atate lzpleaentatloo plana will he included. The hearing of occupa tional hygiene S02 regulation* on the control of fugitive amission* will he dlaouated. The reletlooahlpe aaong the propoted performance atandard*, exleting regulatloaa applicable to modified sources which would he covered hy the propoted itandard*, and ambient air quality standard* will he considered. 6. XCOVOHIC IMPACT OP THX PROPOSE) SZAXSAXS6 This lection will discus* the economic impacta of the proposed standard* on the following item*! 1. Mining Operatlona. 2. Sulfuric acid prices. 3. Copper prices. V. Decision* to construct new taelter* or modify existing fncilitlet. 5. Competition of copper with other artels. 6. 8ulfur tax. T. financial position of the non-ferrous smelting industry. 6. Competition with foreign copper producer*. 9. Price* of typical cooturner goods. ; k i - ttr Eattonal Air PoUutlop Control Technlouss Advisory Co--Ittse Horember l ul 2, 1972 Depsrtment of Co--sres Building Roos W30 lkth Bad Constitution Atbbob, 8, V. Washington, D. C. ;'.v " ' ' - Eorsmber 1. 197! 8:30 A. N. - 9:00 A. K. Call to order. Introduction of new members, guests, Bad lUff. (Kr. 0. P. Walters) 9:00 A. N. - 9:15 A. N. Introduction oa progrs* for development, of saelter emission standards. (Mr. D. 2. Qoodvin) 9:15 A. N. - 9:35 A. K. 9:35 A. K. - 9:50 A. K. Reriev of domestle lead smelting processes aad emissions, statue of existing aali(ion control, aad process alternatives that (soereta concentrated SO2 streams. (Mr. C. E. Darrin) Reriev of lead smelter economic profile. (Mr. V. P. Hamilton) 9:50 A. N. -11:30 A. N. Discussion of issues - lead smelters. (Mr. 0. V. Walsh) 11:30 A. K. -12:30 P. M. 12:30 P. K. -12:50 P. M. Lunch. Reriev of domestic sloe smelting processes aad emissions, status of existing emission control, aad process alternatives that generate concentrated 802 etreams. (Mr. C. E. Darrin) 12:50 P. N. - 1:05 P. A. Reriev of sloe smelter ecoocnlc profile. (Mr. V. P. Hamilton) 1:05 P. X. - 3:00 P. M. Discussion of Issuss - sine smslters. (Mr. 0. V. Walsh) 3:00 P. M. - k:30 P. N. Committee executive session. (Mr. D. T. Walters) r :a- si/.. . N 3478.05 Iorabr 2. X9T8 8:30 A. M. - 9>00 A. M. r. 9:00 A. H. - 930 A. N. , .;> - ' . ... - 9:30 A. K. - 9:^3 A. X. I '4 9:^5 A. M. -11:30 A. X. 11:30 A. N. >12:00 looo * 12:00 looo - 1:00 P. M. 1:00 P. H. - 3:00 P. X. 3:00 P. H. - 1:00 P. X. 1:00 P. M. Appendix 1 Kola of Vatloaal Air Pollution Control Technique* Adriaorr Coaalttoa la ZFA actirltlae, (Dr. Hobart L. Sanaoa, Aaalatant Adnlniatmtor for Air and Watar Prograaa) Ranrlav of doneatlo copper analtlng prooaaaaa and aaiaaloo*, atatua of exlatlng ealaalon control, and procaaa altarnatlraa that generate concentrated S02 atraaaa. (Mr. P. L. Porter) Aarlev of eoppar aoelter aooooade profile. (Mr. P. L. Buajrard) Dlacuaalon of laauaa - eoppar Meltera (Kr. 0. V. Valeh) garlarv of aulfur oxide* aaiaalon control darlcaa (Mr. P. L. Portar and Mr. T. A. Kittlaaaa) Dlacuaalon of laauaa - application of aslaaloo control darlcaa to eoppar, lead and tine asaltara. (Mr. 0. V. Valafc) Coailttaa axacutlra seaelon. (Mr. D. P. Walter*) Adjourn. ik..:."- r?h ' r-'i A preliminary astlaat* his bssn prepared by XPA personnel la order to Meats the coat of controlling tha emissions of 80g from a typical my source In the do* b mastic lead lnduatry. Tha baalc control device utlllaad for thla estlsktts la tha single contact acid plant. The acid plant would operate on 80g emissions fro* load sintering machines that produce a alogic strong atraaa of 80g . Zatlaatea have been i v- prepared for tvo Modal planta--cm# that hea an annual capacity of 113,000 tons per , year of refined lead and another with a capacity of 1T5000 tons per year. The fs- reaults are as follows( riant Site 113,000 tooa/yr 175,000 toos/yr _ BOg Concentration-, B2S0V Froduetlca .W 311 tons/dsy n b82 tons/day I l i Inreatnent Coet (l) 13,100,000 1,200,000 Operating Cost (t) t -Annual <951,000/yr 1,273.000 -Per Pound of lead .*24/1 .364/t -Per Ton of Add 9,2TATom 13.01/Toe -Per Pound of Sulfur Treated 1.394/0 1.204/0 -n "! (1) Znvestaent coats Include the coet of the acid production section as veil as U the vet cleaning section, site preparation, acid storage facilities, and off-site J facilities. i r (2) Operating costs include direct labor, aalatenanea, utliltlee, depreciation, and Interest on borrowed capital. An eulaalcn control aystea that utilised a dual absorption acid plant for con trol of the sintering suchlne and a line scrubber on tha lead blast furnace vcaild Increase the total lnvestaent costa by approxlaately 205. Operating costs would Increase by a similar aaount. In the event that a new source did not Install a sintering Machine that produced a single strong stress of S0g then It vould be necessary to Install sons type of week gas scrubbing systea to treat the week S0g stress fro* the sintering Machine. Thla system vould be in addition to the acid plant needed to control the strong stream from the sintering Machine. In this case It Is sstlaated that total lnvsatment costa vill be approximately 2-% times es such as the coet for a systea that vould be used In conjunction with a sintering Machine producing a single strong streams. Operating am coata vould also increase la a similar fashion. r' r l: 4 4 * N 3478.06 R: fv" r: is ?|;.; . S.; . !: 6 A preliminary estimate hu been prepared by EPA personnel la order to us*** tb* cost of controlling tb* emission of BOj fro* a typical tw source la tbo do mestic aloe Industry. Tb* baalc control derlc* utilised for thla estimate la tb# single contact sulfuric acid plant. Tb* acid plant would operate oa BO, emissions from line roaatr that ar* capable of roasting sufficient f**d for a final product output of 98.000 ton* par year of refined tine. Two estimates bar* bsta prorldsd-- on* for a roaster that produce* an 80j concentration of 61 aad another for a roaster producing an 802 concentration of 1217 Tb* reaulta ar* a* follow*! 802 Concentration HgSO^ Production 6f bTT too*/day 121 - - t.t - 'V.I . '*0 VT7 ton*/4*y Xnreataoat Cot (1) IV.TOO.000 $2,900,000 Operatic* Coet* (8) $l,Vo0,000/jrr 1930.000/yr -Per Pound of Zinc .72*.# V8*/# -Par Too of Acid 18.91/Ton $1.90/Ton -Per Pound of Sulfur Treated i.SM/# .89*/# (1) Inreataent coet* Include the coet of the acid production auction as wall a* i tb* vet cleaning section, site preparation, acid storage facilities, and off-alt* facilities. * (2) Operating coat* Include direct labor, aalntenaoce, utilities, depreciation, and Interest on borrowed capital. An alsaloa control ayatea that utilised a dual absorption acid plant for control of tb* sine roaster and a line scrubber for control of tb* sintering **chine would Increase the total luveetaent coet by approximately 20$. Operating coat* would lucres** by a similar amount. N 3478.07