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SBR1)曾薇王淑莹彭永臻陈韬2)(,,100022)SBR.:,DOpH,ORP.DO,DO;pH,,,pH;ORP,,,,;DO,.DO,,,pH,SBR.:SBR,DO,ORP,pH,,.SBR,,.:DO.,,,.DO,,DO,,[1,2].,DO,ORPpH,,[36].,,DO,ORPpH,SBR.1,,,NaOHpH67.SBR,,,,.1.70cm,30cm,38L.,1)(50138010).(8002005).2).216200211ENVIRONMENTALCHEMISTRYVol.21,No.6November2002DO;30;DO,ORPpH,COD,NH4N,NO2N,NO3NMLSS.1SBR1.;2.;3.;4.;5.ORP;6.;7.;8.;9.;10.;11.;12.;13.Fig.1SBRexperimentandcontrolsystem221SBR32mgl-1,COD130mgl-1,SBR04m3h-1,06m3h-1,SBR2.(MLSS)3000mgl-1.,NO3N1mgl-1,2.DO,,,,DO;pH.,pH(2(b)).ORP,,(2(c)).,DO,;pH.,DOpH,.,,.,DOpHSBR(2(a,b)).22DOSBRCOD190mgl-1,52mgl-1.DO.DO07mgl-1,18mgl-126mgl-1.MLSS3000mgl-1,30.,NO3N.2.pH,.NH4N0mgl-1,pH(B),,,CO2,pH(2(d)).57221DO.ORP,,.DO,ORP,DOORP(2(f))DO,DO07mgl-118mgl-1,012kgNH4N/(kgMLSSd)025kgNH4N/(kgMLSSd),50%,pH.DO18mgl-126mgl-1,.DO2mgl-1,DO,DO.,DO.DO2mgl-1,DO.2SBRFig.2DO,ORPandpHvariationsinthenitrificationofSBRprocess:N=maxDODO+KO2,N,d-1;max,d-1;DO,mgl-1;KO2.KO20204.DO02mgl-1,DON.DO2mgl-1,DO,5736:SBRKO2,Nmax,DON.N.,DO2mgl-1,,,.,DO07mgl-118mgl-1,NO2N35mgl-145mgl-1.DONO3N2mgl-1.,(2(e)).,DO,DO,,pH,SBR.,,,,DO,.,32mgl-152mgl-1,DO2mgl-1,MLSS3000mgl-1.,.,.,DO2mgl-1,01015m3h-1.,,DO,,.,,.(01015m3h-1),,.pH,,pH,,.,301,.2122,DO,ORPpH,,,.,.,,,,.,,.3SBR,,,DOpH,.,DOpHSBR;DO,DO,NH4H0mg,pH,.DO,.DO,.,pH,,pH57421,,.,ORP,,.,ORPSBR,,.[1],SBR[J].,1993,9(2)2931[2]JohnAP,SpyrosGP,RealTimeMonitoringandControlofSequencingBatchReactorsforSecondaryTreatmentofaPoultryProcessingWastewater[J].WaterEnvironmentResearch,2000,72(5)585592[3]RueyFangYu,ShuLiangLiaw,ChengNanChangetal.,ApplyingRealTimeControltoEnhancethePerformanceofNitrogenRemovalintheContinuousFlowSBRSystem[J].Wat.Sci.Tech.,1998,38(3)271280[4]OliverJHao,JasonHuang,AlternatingAerobicAnoxicProcessforNitrogenRemoval:ProcessEvaluation[J].WaterEnvironmentResearch,1996,38(1):8393[5],,,SBR[J]..2000,16(4)59[6]HyunookKim,OliverJHao,pHandOxidationReductionPotentialControlStrategyforOptimizationofNitrogenRemovalinanAlternatingAerobicAnoxicSystem[J].WaterEnvironmentResearch,2001,73(1)951022002423.EFFECTOFOXYGENSUPPLYONNITRIFICATIONCONTROLINSBRPROCESSZENGWeiWANGShuyingPENGYongzhenCHENTao(CollegeofEnvironmentalandEnergyEngineerign,BeijingPolytechnicUniversity,Beijing,100022)ABSTRACTTheeffectofoxygensupplyonDO,ORPandpHvariationsinthenitrificationofSBRprocesstreatingpetrochemicalindustrywastewaterwasintroducedinthispaper.Thecontrolstrategiesunderdifferentoxygensupplyconditionswerebroughtouttooperatenitrification.Theresultsindicatedthatunderthefixedaerationrate,DOandpHcouldbeusedasthecontrollingparametersofSBRnitrificationduration.ButORPvariationcantindicatetheendofnitrificationobviously.UnderthefixedDO,pHinthenitrificationdecreasedslowlyorstably,thenrosesuddenlyassoonasthenitrificationcompleted.pHcanalsobeusedasthecontrollingparameterofSBRnitrification.ORPwentuprapidlyintheinitialreaction,thenrisingspeedbecameslowerandslower,andtendedtobeconstant.Consequently,ORPvariationcantindicatetheendofnitrificationinSBRobviouslyandindependently.Ontheotherhand,aerationratedecreasedinordertomaintainDOstable.ThedemandedlestaerationrateunderdifferentinfluentconditionissameonlyifMLSSandDOlevelissame.SocorporationbetweenthelestaerationrateandpHcontrolcanmakenitrificationtimecontrolstable.Keywords:SBRprocess,DO,ORP,pH,nitrification,controllingparameter.5756:SBR