聚氯乙烯生产过程中大气污染物的产生及治理措施.

师莉娟(,030002)　程芳琴(,030006)　通过对聚氯乙烯生产工艺的分析,说明聚氯乙烯生产过程中主要污染物氯乙烯单体的产生部位和特点,在此基础上分析其治理措施情况,最终提出高效、可行、且易操作的治理措施。　聚氯乙烯　污染物产生　影响　治理措施1　,(PVC)、、,。,。,。2　,。,、,,。2.1　氯乙烯压缩分馏,2,,,,,,67500mgNm3,,,,,,。1。1　2.2　聚合工序,、、、。,,,,,,。(2×10-3～3×10-3),16140mgNm3,,,,,,815mgNm3,,,2。2　、、　3　,,,,46　　　20056233,,,。3.1　现有聚氯乙烯生产过程中,低沸塔分馏尾气治理措施,,,。,,,;0.7MPa,80～95℃,,95kPa,30min,,。、、、、,4,3,99%,,3。3　　,,,,,,,,,。《》,65mgNm3;、、36mgNm3。,,,、,,,,。,,。3.2　聚氯乙烯生产低沸塔分馏尾气治理的改进措施,,,,,,,,,,,,,,,,,,,。0.52MPa、-15℃,,,、,(0.45～0.5MPa、40℃,,C2H2150mgNm3、C2H3Cl36mgNm3),,;,(0.02～0.04MPa、40℃C2H216%、C2H3Cl55%),。、、、、、、。4。4　　,,、、,。,,4×10-6～5×10-6,,。,47　　　20056233,,。4　(1)。、、、、、、。,,,,,。(2),,,Ⅰ,。,,。(3),,;,,、,,。(4),,,。　　030002　93　2004-10-10(45)1　..,2001.7:24～26.2　.ISO14001.:,2000.3　,..,2000.(1):23～28.4　..,2001.3(9):64～68.5　,..,2002.22:70～72.6　,..:,2001.8:142～144.7　P.Pichat,J.Disdier,C.Hoang-Van,ect.PurificationdeolorizationofindoorairandgaseouseffluentsbyTiO2photo-catalysis.CatalysisToday63(2002)363～369.8　...:,1999.5:312～323.9　()P.N.,R.A....:,1987,5:348～355.10　,...:,2002.10.11　,.:,1992.11:120～129.12　、..:,1989.5.13　J.Prezpiorski,S.Yoshida.A.Oya.StructureofK2CO3-loadedactivecarbonfiberanditsdeodorizationabilityagainstH2Sgas.Carbon371999.1881～1890.14　HO-chulshin,Jin-WonPark,KwinamPark,etal.RemovalCharacteristicsofTraceCompoundsofLandfillGasbyActivecarbonadsorption.Environmentalpollution,2002.119:227～236.　　410082　　(0731)8649216,13723871048E-mail　[e-mail]2004-10-1348　　　20056233numberoffluegas.Itwasindicatedthatdesulfurizationofcondensingfluegaswasintensifiedbyfoglye.Keywords　Ca(OH)2slurrydroplet,condensingflue-gas,desulfurizationandsprayPURIFICATIONOFORGANICWASTEGASFROMTHEWIREPRINTEDDISTRICTOFPRINTEDCIRCUITBOARDPLANTLiShanhongetal(43)……………………………………………………………Abstract　Theflowchartoftheintermittentfixedbeactivecarbonadsorptionforpurificationoftheorganicwastegaswasselectedinaccordancewiththeorganicwastegaspollutionproblemsfromthewireprinteddistrictoftheprintedcircuitboardplant.Throughthecalculationabilityofthecausingcoldandquantititesoftheadsorption.someparametersoftheactivatedcarbonadsorptionaredesigned,suchasthegasvelocityoftheemptytowerwasabout0.6ms,theactivatedcarboniscoconut.Theactivatedcarbonadsorptionbedwasdesignedasdoublestorywithdrawers.Aftertheadsorptionbedpurification,practicalmonitortestified:theefficientofthebenzene.tolueneandxylenepurifiedto81.59%,83.50%,85.43%byadsorption.Thewasteactivatedcarbonwasaccumulatedanddesorption.Therecycleorganicproductsweremixedintothedieseloiltobeusedasfuelofmotors.Keywords　organicwastegas,productionofprintedcriculitboard,activatedcarbonadsorptionandpurificationFORMATIONOFATMOSPHERICPOLLUTANTSDURINGPRODUCTIONOFPOLYVINYLCHLORIDEANDTREATMENTMEASURESShiLijuanetal(46)…………………………………………………Abstract　Itisexplainedthattheproductionpositionandfeaturesofvinylchloridemonomerduringtheproductionofpolyvinylchloride(PVC)byanalyzingthemanufacturingprocessofPVC.Basedonwhichitstreatmentconditionsarealsoanalyzed,andfinallyhigh-efficientandfeasiblecontrollingmeasuresareproposed.Keywords　PVC,productionofpollutant,influenceandcontrolmeasuresAPPLICATIONOFAMMONIAPROCESSFLUEGASDESULPHURIZATIONTOCOAL-FIREDBOILERZhouJianhongetal(49)…………………………………………………………………………………………………Abstract　Takingtheprojectof75thpulverisedcoalcombustionboilerasanexample,thispaperdiscussestheapplicationofammoniaprocessfluegasdesulphurizationtothecoal-firedboiler.Theresultshowsthat,withthedesulphurizationunitisputintooperation,averagedesulphurizationeffectinthesystemhasreached95.92percent,andsulfurdioxidecontentinthefluegasfromtheboilerhasbeenreducedtolessthan135mgpercubicmeter,whichisfarlowerthanthespecifiedlimits.Thispaperalsodiscussedoperatingindex,treatmenteffectandexistingproblems.Keywords　desulfurizationbyammoniaprocess,FGD,coal-firedboilerandsulfurdioxideDESIGNPRINCIPLEOFMODERNSOLIDWASTELANDFILLSITEANDITSAPPLICATIONWangYanmingetal(51)………………………………………………………………………………………………………………Abstract　Thedesignprincipleofmodernlandfillingsiteissummarizedherein.AnexampleprojectcalledShanghaiLaogangLandfillSite(Phase-Ⅳ)isreferredtoshowthedetailedapplicationofthetheory.Keywords　modernlandfilling,designprinciple,constructingbystages,developingplan,highdimensionanddoubleanti-seepaginglayerSTUDIESANDTECHNICALDESIGNSOFON-SITETREATMENTOFNIGHSOILANDKITCHENGARBAGEChenZhuleietal(54)…………………………………………………………………………………………………Abstract　Thispaperoffersasuitofdisposaltechniquesatsourceofthenightsoilandkitchengarbage.Apilot-scalesystem.whichwasusedtodealwiththenightsoilandkitichengarbagefromoneunitofaresidentialbuildingforsimulationwasdesignedaccordingtothedataoflab-scaletrials.Thesystemcomprisesvacuumcollection,anaerobicdigestionofsolids,compostingofdigestivesludgeandanaerobic-aerobicdisposalofmixedsewage.Itshandlingcapacitywas0.2td.Thenightsoilandkitchengarbagecanbecollectedatsourceanddisposedatlocale,synchronously,thebacterialfertilizerandmethanecanbeproducedthroughthesystem.Keywords　nightsoil,kitchengarbage,vacuumcollectionandanaerobicdigestionSTUDYONTECHNOLOGYOFOPTIMIZAITONTREATMENTOFLIVINGRUBBISHESINCITIESANDTOWNSLiuDayietal(57