低温SBR法污水处理系统运行特性谭学军

:2007-04-24:(1976—),,,.E-mail:[e-mail]谭学军1,2,唐　利1,周　琪1(1.,200092;2.,200092):、、,(SBR).:SBR(COD),COD;2,3,5(2,3,5-triphenyl-tetrazoliumChloride,TTC)[2-(p-iodophenyl)-3-(p-nitrophenyl)-5-phenyl-tetrazoliumChloride,INT](ETS)(OUR),TTCINTETS,OUR;pH,(DO),(ORP)SBR;SBR(MLVSS)(MLSS),MLVSSMLSS.:;;;;;:X703.1　　　　　　:A　　　　:0253-374X(2008)08-1094-07PerformanceofOperationofSequencingBathReactorSystemforLowTemperatureSewageTreatmentTANXuejun1,2,TANGLi1,ZHOUQi1(1.SchoolofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai20092,China;2.ShanghaiMunicipalEngineeringDesignGeneralInstitute,Shanghai200092,China)Abstract:PerformanceoflowtemperatureSequencingBatchReactor(SBR)systemwasstudiedviatheinvestigationofpollutantsremoval,parameterscontrol,biologicalactivityandsludgecharacteristics.TheresultsshowthatChemicalOxygenDemand(COD)removalinlowtemperatureSBRsystemisdi-videdintotwostages,andnitrificationreactionoccursoninthesecondstage.2,3,5-triphenyl-tetra-zoliumChlorideTTCand2-(p-iodophenyl)-3-(p-nitrophenyl)-5-phenyl-tetrazoliumChloride(INT)-ElectronTransportSystem(ETS)activityandOxygenUptakeRate(OUR)ofactivatesludgechangedperiodicallyinthelowtemperatureSBRsystem.ThevariationofTTCandINT-ETSactivitycanprovidesuitableinformationabouttheprocessofthewholeSBRsystem,andOURcanreflectthebiochemicalreactionoftheaerobicstage.pHvaluesprovideagoodindicationoftheongoingbiologicalreactionsforthewholeprocess,DissolvedOxygen(DO)onlyfitsforaerobicprocessandOxidationReductionPotential(ORP)isunsuitableforlowtemperatureSBRprocesscontrol.MixedLiquidVolatileSuspendedSolid(MLVSS)/MiredLiquidSuspendedSolid(MLSS)oflowtemperatureSBR36820088()JOURNALOFTONGJIUNIVERSITY(NATURALSCIENCE)Vol.36No.8　Aug.2008systemriseswiththeincreaseofoperationcycle,andwhensystemremainsstable,MLVSS/MLSSoflowtemperaturesystemishigherthanthatofnormaltemperaturesystem.Keywords:wastewatertreatment;sequencingbatchreactor(SBR);lowtemperature;performanceofoperation;biologicalactivity;controlparameters　　(sequencingbatchreactor,SBR),,.SBR、,、、、,[1],SBR、,,SBR,SBR,.SBR,.,、、,.,(dissolvedoxygen,DO)、(oxidationre-ductionpotential,ORP)pH、,SBR[2-3],SBR.SBR.,(electrontransportsystem,ETS)(oxygenuptakerate,OUR),ETS,OUR(O2)[4-5].2,3,5(2,3,5-triphenyl-tetrazoliumchlo-ride,TTC)[2-(p-iodophenyl)-3-(p-nitrophenyl)-5-phenyl-tetrazoliumchloride,INT]ETS,ETSTTCETSINTETS[6-8].,SBRTTCINTETSOUR,SBR.(5±1)℃SBR,SBR、、.SBR,SBR,.1　1.1　,,pH.1.2　SBR,70cm,30cm,40L.,;;;DO,ORPpHDO,ORPpH.1.3　1.3.1　,.,(25±1)℃,,10h,2,.2,CODcr40040mg·L-1,COD90%,0mg·L-1,30%,,.1.3.2　,(25±1)℃.,,1095　8,:SBR　　(25±1)℃(5±1)℃,.1,10,2431,SBR、、;,SBR.SBR,、,400,456mg·L-1,6500mg·L-1.,COD,“”,TTCETS,INTETS,OUR,DO,ORP,pH.1.4　1.4.1　TTCETS10mL0.8mL、0.5mL0.36%Na2SO30.3mL0.4%TTC.30min,1mL37%,.4000r·min-15min,,5mL,,10min.4000r·min-15min,.485nm.(105±1)℃1h.TTCETS:UT=D485V/KTWt(1):UTTTCETS,mg·g-1·h-1;D485485nm;V,mL;KTTTC;W,g;t,h.1.4.2　INTETS10mL0.3mL、1.5mLTrisHCl1mL0.2%INT.30min,1mL37%.4000r·min-15min,,5mL,,10min.4000r·min-15min,485nm,(105±1)℃1h.INTETS:UI=D485V/KIWt(2):UIINTETS,mg·g-1·h-1;KIINT.1.4.3　OUR250mLOUR,,,,,0.1mg·L-1.OUR,.,.ρ(DO)—tOUR,:UO=Δρ(DO)/Xt(3):UO,mg·g-1·h-1;Δρ(DO),mg·L-1;X,g·L-1;t,h.1.4.4　CODcr(5B1COD);NO-3—N();NO-2—N(N(1));NH4+—N();(MLSS)(MLVSS)();DO(WTWOxilevel2);ORPpH(HANNApH211).2　2.1　1.COD,SBRCOD,(COD,COD),.1,10,2431COD20,40,6060min.COD,COD,(),().,COD.:,,,,[8].1096　　　()36　,COD,,COD.COD,COD(1/10～1/5),COD90%.,,SBRCOD.1　SBRCOD、、((5±1)℃)Fig.1　TheprofilesofCOD,ammonia,nitrateandnitriteinSBRprocessat(5±1)℃　　,(190min,10、2431120min),COD,COD.,COD,,COD.COD,COD,.,COD,,.,SBR,30%,.SBR,1h.2.2　TTCINTETSOURSBRTTCINTETSOUR2.,TTCETSCOD;,TTCETS,;COD,TTCETS.TTCETSCOD,TTCETS.COD,COD,TTCETSCOD.,160120min,10,243190180min.TTCETS,,,.SBRINTETSTTC1097　8,:SBR　　ETS,.SBR,、,TTCINTETS.,TTCINTETSSBR.2　SBRTTCINTETSOUR((5±1)℃)Fig.2　TheprofilesofTTCandINTETSactivityandOURofactivatedsludgeinSBRprocessat(5±)℃　　OURCOD,COD(120min,1040min,24,3160min),OUR,;,,OUR;COD,OUR,.,OUR.,OURCOD,CODOURCOD.TTCINTETSOUR.2.3　DO,ORPpHSBRDO,ORPpH3.DO,,DO,COD;COD,DO,;,DO(COD,);COD,DO,.DOSBRCOD.COD,ORP;COD,;COD,ORP,.,24ORP“”,.,,ORPSBR.,pHCOD,COD,.,pH,COD,pH,1098　　　()36　.,pH,,.DO,ORPpH,SBRDO,ORPpH.,pH,DO,ORPSBR.3　SBRDO,ORPpH((5±1)℃)Fig.3　TheprofilesofDO,ORPandpHinSBRprocessat(5±1)℃2.4　MLVSSMLSS,,[9].SBRMLVSSMLSS,,4.,SBRMLVSSMLSS0.827～0.845,0.839;SBRMLVSSMLSS.1,MLVSSMLSS;10,MLVSSMLSS,0.840;2431,MLVSSMLSS,,0.8660.867,.,SBR,SBR,.4　SBRMLVSSMLSS((5±1)℃)Fig.4　TheprofilesofMLVSS/MLSSinSBRprocessat(5±1)℃3　(1)SBRCOD,,.1099　8,:SBR　　COD.(2)SBRTTCINTETSOUR,TTCINTETS,OUR.(3)SBRDO,ORPpH,pH,DO,ORP.(4)SBR,MLVSSMLSS.:[1]　,,.SBRORPCOD[J].,2002,28(9):40.　　GAODawen,PENGYongzhen,WANGShuying.CorrelationofORPandCODinSBRprocesstreatingsoybeanprocessingwastewater[J].Water&WastewaterEngineering,2002,28(9):40.[2]　PengYZ,GaoJF,WangSY,etal.UsingpHandORPasfuzzycontrolparametersofdenitrificationinSBRprocess[J].WaterScienceandTechnology,2002,46(4/5):131.[3]　AkinBS,UgurluA.Monitoringandcontrolofbiologicalnutrientremovalinasequencingbatchreactor[J].ProcessBiochemistry,2005,10:2873.[4]　OrhonD,OkutmanD.Respiromet