26220062 ActaScientiaeCircumstantiaeVo.l26,No.2Feb.,2006:(1970—),,();*(),E-mail:chunjuand@126.comBiography:DONGChunjuan(1970—),female,associateprofessor(Ph.D.);*Correspondingauthor,E-mail:chunjuand@126.com,.2006.EGSB[J].,26(2):220-224DongCJ,LüBN.2006.PerformancecharacteristicoftheEGSBreactorinthemicroaerobicconditions[J].ActaScientiaeCircumstantiae,26(2):220-224EGSB董春娟1,*,吕炳南21.太原大学环境工程系,太原0300092.哈尔滨工业大学市政与环境工程学院,哈尔滨150090:2005-05-16 :2005-11-23 :2005-12-08:EGSB,EGSB.,EGSBCOD,VFA.427mgL-1、869mgL-1、1796mgL-1、3123mgL-1COD,,CODVFA4.0%、4.2%、3.9%、1.1%43%、40%、46%、18%;;EGSB,-380~-400mV;EGSBpH、.:EGSB;;:0253-2468(2006)02-0220-05 :X703 :APerformancecharacteristicoftheEGSBreactorinthemicroaerobicconditionsDONGChunjuan1,*,LÜBingnan21.TanyuanUniversity,DepartmentofEnvironmentEngineering,Tanyuan0300092.HarbinInstituteofTechnology,SchoolofMunicipalandEnvironmentEngineering,Harbin150090Received16May2005; receivedinrevisedform23November2005; accepted8December2005Abstract:InordertoanalyzethefeasibilityofthehighlyefficientlyandstableoperationoftheEGSBreactoratthemicroaerobiccondition,TheperformancecharacteristicoftheEGSBreactorattheanaerobicandmicroaerobicconditionswasinvestigatedinthispaper.TheresultsshowedthatSupplementoflimitedoxygencouldincreasetheCODremovalefficiencyanddecreasetheeffluentVFAconcentration.FortheinfluentCODof427、869、1796and3123mgL-1,theincreasedpercentageoftheCODremovalefficiencyandthedecreasedpercentageoftheeffluentVFAconcentrationare4.0%、4.2%、3.9%、1.1%and43%、40%、46%、18%,respectively.Supplementoflowleveloxygenwasn’tharmfultothemethanogens.Theoxidation-reductionpotential(ORP)isthemoreoptimalcontrolparameterfortheEGSBreactorperformance,whichnormallyhasthevaluesof-380~-400mV.ThemicroaerobicEGSBreactorhadverystrongabilityofresistingpH,temperatureandloadsshock.Keywords:EGSBreactor;methanogenicactivity;microaerobic ,()-.,、,,,,(Stephensonetal.,1999).,,,,(Fieldetal.,1995).PirtLee(1983),,.Zitomer(1998),.,,(Zitomeretal.,2000).,DOI:牨牥牨牫牰牱牨牤jhjkxxb牪牥牥牰牥牪牥牥牴2:EGSB,,,(Gerritseetal.,1990;,2003).EGSB“”.(,2005).,(COD10%)COD、、,.,EGSB,EGSB,EGSB、.1 (Experiments)1.1 反应器EGSB16.5L,10.0L,90mm,19∶1,1.,,.(35℃).1 EGSB(1.;2.;3.;4.;5.;6.;7.;8.;9.;10.;11.;12.EGSB;13.;14.;15.;16.;17.;18.;19.;20.10%NaOH;21.Mariotte;22.;23.;24.;25.)Fig.1 SchemeoftheexperimentalEGSBreactor(1.Influenttank;2.Influentpump;3.Watertank;4.Recirculation;5.Influent;6.Flowmeter;7.Value;8.Thermothaticbath;9.Recirculationpump;10.Recirculationtank;11.Effluentoutlet;12.EGSBreactor;13.Heatpreservationmaterial;14.Largegranularsludge;15.Finegranularsludge;16.Sampleports;17.Gas-Liquid-Soldseperator;18.Water-sealflask;19.Clamp;20.10%NaOH;21.ariotteflask;22.Graduationtube;23.asFlowmeter;24.Air;25.Sparger) EGSB(1b).(DO)、(ORP).:1);2);3)EGSB;4)().1.2 接种污泥EGSB,EGSB,EGSBEGSB.1.3 实验用水EGSB.、,COD∶N∶P=100∶3∶1;S∶P=1∶2;S∶Fe2+=3∶1;Fe2+∶Co2+∶Ni2+=10∶1∶2NH4Cl、221 26KH2PO4、Na2S9H2O、FeCl24H2O、CoCl26H2O、NiCl26H2O.1.4 实验方法EGSB,,、.HRT3.4h、COD、EGSB、COD,EGSB.HRT3.4h、COD427、869、1796、3123mgL-1,EGSBCODVFA.,,CODVFA,.HRT3.4h、869mgL-1、EGSB,(LiYaxin,1994;,1993)EGSB.HRT3.4h、869mgL-1,EGSBpH、pH、.1.5 分析项目和方法CODSVI;pHPHS-3C;VFA;DO;ORPPHS-3C();Marriotte,(Zengetal.,1996).2 (Results)2.1 运行情况1EGSBCOD、.,COD,,0~0.01mgL-1,-380~-400mV(EGSB),COD.,,,.,EGSB.1 EGSBCOD、(HRT:3.4h)Table1 OperationoftheEGSBreactorforvariedinfluentCODconcentrationandvariedoxygenationcondition(HRT:3.4h)COD/(Ld-1)/(mgL-1)/mVCODVFA/(mmolL-1)00-396±1991.97%0.742720.01-380±2395.67%0.440.01-355±2192.07%—00-418±3493.00%1.086980.01-380±1796.92%0.6150.02-359±1393.21%—00-457±693.75%1.31796200-394±3297.38%0.7300.01-370±1895.42%—00-481±1695.70%1.73123300-423±1595.92%—400-396±2196.72%1.3500.01-350±1396.01%- ,1,COD,EGSBCOD,VFA.,COD427mgL-1、869mgL-1、1796mgL-1、3123mgL-1COD4.0%、4.2%、3.9%1.1%,VFA43%、40%、46%18%.COD.2222:EGSB2COD869mgL-1、EGSB..,,EGSB.2 EGSBFig.2 MethanogenicactivityofgranuleinmicroaerobicandanaerobicEGSBreactor2.3EGSB反应器在微氧条件下的抗冲击能力、pH,.,.EGSB,EGSB.3EGSBpH.EGSBpH5.06.5,pH7.0,pH3.72,pH6.54.pH5.40,pH7.58.3 EGSBpHFig.3 VariationoftheInfluentandeffluentpHvalueforthemicroaerobicEGSBreactor4EGSBCOD.A35℃60℃,35℃;B24.88kgm-3d-136.28kgm-3d-1.,EGSBCOD,20d.4 EGSBCODFig.4 OperationofthemiaroaerobicEGSBreactorattheconditionsoftemperatureandloadshock3 (Discussion)EGSBCOD,,,,.;,,,,EGSB.,,,、TCA,,;VFAS、H2S;SO2-4SS2O2-3H2S,(Zitomeretal.,2000).,COD,VFA,pH.,.EGSB,,,,.,.,;、、,223 26COD,VFA.、EGSB.4 (Conclusions)1)EGSBCOD,VFA.427mgL-1、869mgL-1、1796mgL-1、3123mgL-1COD,,CODVFA4.0%、4.2%、3.9%、1.1%43%、40%、46%、18%.2).3)EGSB.EGSB,-380~-400mV.EGSBpH、.References:DongCJ,LuBN,MaL,etal.2003.Useofoxygen-limitedmethanogenictechnologyfordegradationoftoxicmattersinwater[J].ChinaWaterWastewater,19(8):19—22(inChinese)DongCJ,LuBN,ChenZQ.2005.Characteristicofanaerobicgranularsludgeanddigestionsludgeundermicroaerobicconditions[J].JournalofNanjingUniversityofScienceandTechnology,29(2):216—218(inChinese)FieldJ,StamsA,KatoM,etal.1995.Enhancedbiodegradationofaromaticpollutantsinco-culturesofanaerobicandaerobicbacterialconsortia[J].AntonvanLeeuwenhoek,67: