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21420007 ENVIRONMENTALSCIENCEVol.21,No.4July,2000COD/SO2-41,2*,2(1., 100083;2., 100037):UASBCOD,COD.HRT3.8h,SO2-46～7kg·(m3·d)-1,SO2-41000mg·L-1:①COD,SRBMPB;,SRB.②COD/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,SO2-4loadratewas6～7kg·(m3·d)-1,SO2-4was1000mg·L-1,SRBwasatthepotentialofbiomasswiththeCODwasnotenoughattheendoftest;theremovalrateofSO2-4wasdeterminedbyCOD/SO2-4ratio,theremovalrateofSO2-4wasmorethan95%,75%and60%whentheratiowas2,1.5and1,respectiviely.Keywords:UASB;sulfate;removalrate;sulfatereducingbacteria (SulfateReducingBac-teria,SRB)[1～6].,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/SO2-41.7～2.7,MPBSRB[9].COD/SO2-4SO2-4.1 1.1 1m,7.0cm.3.0L,35℃.1,100ml.,DOI:10.13227/j.hjkx.2000.04.0251 UASB90.3%,VSS/SS=0.66,114ml·(g·d)-1,COD0.44g·(g·d)-1.2L.1.2 (Na2SO4∶MgSO4·7H2O∶K2SO4=1.5∶1.7∶1)COD,COD∶N∶P=200∶5∶1[10],NaH2PO4,,1.1.3 2:(1～30d)(34～145d)..(1) COD/SO2-4=0.8,SO2-4=300mg·L-14d,COD/SO2-4=0.8,SO2-4=500mg·L-112d,(HRT)18h;17d,COD/SO2-4=3,SO2-4=50mg·L-1.SO2-470%,.30d,SO2-46kg·(m3·d)-1,SO2-497.3%.,.1 /mg·L-1/mg·L-1FeCl2·4H2O2000(NH4)6Mo7O2·4H2O90pHpHCoCl2·6H2O2000Na2SeO3·5H2O100CODMnCl2·4H2O500NiCl2·6H2O50SO2-4CuCl2·2H2O30EDTA1000S2-ZnCl250500HCl(36%)1mlH3BO350 (2)COD/SO2-4 COD/SO2-4,COD/SO2-42.0,1.5,1.0COD/SO2-4SO2-4.32d,SO2-41000mg·L-1,HRT=3.8h,SO2-4=1000mg·L-1,CODCOD/SO2-4.pH,pH7.8.2 2.1 COD/SO2-42,,SO2-46～7kg·(m3·d)-1,COD14kg·(m3·d)-17kg·(m3·d)-1.2.2 COD/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%,.1074 2 1)COD/SO2-4/dCOD/%SO2-4/%/mg·L-1(CaCO3)/mg·L-1L·d-1232～4770～80≥9523015008.51.548～5780～90752001300～14006.2158～14590～6050～601301000～12003.81)CODCOD,CO2H2S.2 COD/SO2-4SO2-42.3 SRBCOD3,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,.2.4 COD/SO2-4,130～250mg·L-1,,90d,130mg·L-1.2.5 COD/SO2-4,,COD,100dCOD60%.pH7.8,pH,7.6,,pH7.2,.,6%.60d,,2～3mm.,,80d,,,100d,,3～5mm.3 COD/SO2-42,SRBSO2-4,1,SRBCOD,COD.SO2-460%.:①SRBMPB,SRB,,,.②,MPB,SRB.,,MPB,SRB,.③SO2-4SRB,CODSO2-4.CODSO2-4,COD/SO2-4,,SO2-4.4 (1)COD,SRBMPB108 213 SRBCODCOD;,SRB.(2)COD/SO2-4SO2-4.2,SO2-495%;1.5,SO2-475%;1SO2-460%.:1 RintalaJ,JLSMartin,GLetting.ThermophilicAnaero- bicTreatmentofSulfateRichPulpandPaperIntegrateProcessWater.Wat.Sci.Tech.,1991,24(3/4):149～160.2 OudeElferinkSJWH,VisserA,HulshoffPolLW,AJMStams.Sulfatereductioninmathanogenicbioreactors.FEMSMicrobial.Rev.,1993,15:119～136.3 KuenenJG,LARobertson.TheuseofNaturalBacterialPopulationsfortheTreatmentofSulfur-ContainingWastewaters.Biodegradation,1992,3:239～254.4 ..,1992,13(5):50～52.5 ,..,1995,16(3):8～11.6 ,..,1993,15(3):5～8.7 McCartneyDM,OleskiewicaJA.SulfideInhibitionofAnaerobicDegradationofLactateandAcetate.Wat.Res.,1991,25:203～209.8 McCartneyDM,OleskiewiczJA.CompetitionBetweenMethanogensandSulfateReduces:effectofCOD:SulfateRatioandacclimatization.Wat.Env.Res.,1993,65:655～664.9 ChioE,RimJM.Competitionandinhibitionofsulfatere-ducersandmethaneproducersinanaerobictreatment.Wat.Sci.Technol.,1991,23:1259～1264.10 ..:,1996.307.1094