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21420007ENVIRONMENTALSCIENCEVol.21,No.4July,2000COD/SO2-41,2*,2(1.,100083;2.,100037):UASBCOD,COD.HRT3.8h,SO2-467kg(m3d)-1,SO2-41000mgL-1:COD,SRBMPB;,SRB.COD/SO2-4SO2-4.2,SO2-495%;1.5,SO2-475%;1,SO2-460%.:UASB;;;:X781:A:0250-3301(2000)04-0106-04::(1967),,,.:1999-11-13*EffectsofCODandSO2-4RatiotoSulfateReducingRateCuiGaofeng1,KeJianming2,WangKaijun2(1.BeijingGraduateSchoolofChinaUniversityofMiningandTechnology,Beijing100083,China;2.BeijingMunicipalResearchAcademyofEnvironmentalProtection,BeijingWaterEnvironmentalResearchCenterofTechnologyandEquipment,Beijing100037,China)Abstract:Inthispaper,aUASBreactorwasusedtostudytheeffectofCOD/SO2-4ratiotosulfateremovalrate.Thecompetitionbetweensulfatereducingbacteria(SRB)andmethaneproducingbacteria(MPB)wasalsostud-ied.whentheconditionofhydraulicretentiontime(HRT)was3.8h,SO2-4loadratewas67kg(m3d)-1,SO2-4was1000mgL-1,SRBwasatthepotentialofbiomasswiththeCODwasnotenoughattheendoftest;theremovalrateofSO2-4wasdeterminedbyCOD/SO2-4ratio,theremovalrateofSO2-4wasmorethan95%,75%and60%whentheratiowas2,1.5and1,respectiviely.Keywords:UASB;sulfate;removalrate;sulfatereducingbacteria(SulfateReducingBac-teria,SRB)[16].,SRBCOD/SO2-4=0.67.,SO2-4;,SO2-4.(MethaneProduc-ingBacteria,MPB),SO2-4COD.OleskiewiczMcCartney[7,8]COD/SO2-4.,SO2-4.ChoiRim(1991)COD/SO2-42.7,MPB,COD/SO2-41.7SRB.COD/SO2-41.72.7,MPBSRB[9].COD/SO2-4SO2-4.11.11m,7.0cm.3.0L,35.1,100ml.,1UASB90.3%,VSS/SS=0.66,114ml(gd)-1,COD0.44g(gd)-1.2L.1.2(Na2SO4MgSO47H2OK2SO4=1.51.71)COD,CODNP=20051[10],NaH2PO4,,1.1.32:(130d)(34145d)..(1)COD/SO2-4=0.8,SO2-4=300mgL-14d,COD/SO2-4=0.8,SO2-4=500mgL-112d,(HRT)18h;17d,COD/SO2-4=3,SO2-4=50mgL-1.SO2-470%,.30d,SO2-46kg(m3d)-1,SO2-497.3%.,.1/mgL-1/mgL-1FeCl24H2O2000(NH4)6Mo7O24H2O90pHpHCoCl26H2O2000Na2SeO35H2O100CODMnCl24H2O500NiCl26H2O50SO2-4CuCl22H2O30EDTA1000S2-ZnCl250500HCl(36%)1mlH3BO350(2)COD/SO2-4COD/SO2-4,COD/SO2-42.0,1.5,1.0COD/SO2-4SO2-4.32d,SO2-41000mgL-1,HRT=3.8h,SO2-4=1000mgL-1,CODCOD/SO2-4.pH,pH7.8.22.1COD/SO2-42,,SO2-467kg(m3d)-1,COD14kg(m3d)-17kg(m3d)-1.2.2COD/SO2-4SO2-42,,SO2-4COD/SO2-4,2.COD/SO2-4=2,SO2-495%;COD/SO2-4=1.5,SO2-475%;COD/SO2-4=1,SO2-460%,.107421)COD/SO2-4/dCOD/%SO2-4/%/mgL-1(CaCO3)/mgL-1Ld-12324770809523015008.51.54857809075200130014006.215814590605060130100012003.81)CODCOD,CO2H2S.2COD/SO2-4SO2-42.3SRBCOD3,COD/SO2-4=2,SRBCOD40%55%;COD/SO2-4=1.5,40%;SRBCODCOD/SO2-4=2COD/SO2-4=1.5,,COD/SO2-4.COD/SO2-4=1,,SRBCOD40%70%,.SRBMPB.SRBCODCOD,SRBCODMPB,.2.4COD/SO2-4,130250mgL-1,,90d,130mgL-1.2.5COD/SO2-4,,COD,100dCOD60%.pH7.8,pH,7.6,,pH7.2,.,6%.60d,,23mm.,,80d,,,100d,,35mm.3COD/SO2-42,SRBSO2-4,1,SRBCOD,COD.SO2-460%.:SRBMPB,SRB,,,.,MPB,SRB.,,MPB,SRB,.SO2-4SRB,CODSO2-4.CODSO2-4,COD/SO2-4,,SO2-4.4(1)COD,SRBMPB108213SRBCODCOD;,SRB.(2)COD/SO2-4SO2-4.2,SO2-495%;1.5,SO2-475%;1SO2-460%.:1RintalaJ,JLSMartin,GLetting.ThermophilicAnaero-bicTreatmentofSulfateRichPulpandPaperIntegrateProcessWater.Wat.Sci.Tech.,1991,24(3/4):149160.2OudeElferinkSJWH,VisserA,HulshoffPolLW,AJMStams.Sulfatereductioninmathanogenicbioreactors.FEMSMicrobial.Rev.,1993,15:119136.3KuenenJG,LARobertson.TheuseofNaturalBacterialPopulationsfortheTreatmentofSulfur-ContainingWastewaters.Biodegradation,1992,3:239254.4..,1992,13(5):5052.5,..,1995,16(3):811.6,..,1993,15(3):58.7McCartneyDM,OleskiewicaJA.SulfideInhibitionofAnaerobicDegradationofLactateandAcetate.Wat.Res.,1991,25:203209.8McCartneyDM,OleskiewiczJA.CompetitionBetweenMethanogensandSulfateReduces:effectofCOD:SulfateRatioandacclimatization.Wat.Env.Res.,1993,65:655664.9ChioE,RimJM.Competitionandinhibitionofsulfatere-ducersandmethaneproducersinanaerobictreatment.Wat.Sci.Technol.,1991,23:12591264.10..:,1996.307.1094