SBR系统同步脱氮除磷好氧颗粒污泥的培养

SBR1,2,2,2(1.,315100;2.,410082):,,(SBR),COD,,,0.51.0mm,27.0mL/g,MLSS6800mg/LNH+4-N100%,CODPO3-4-P80%,,,:;;:X703.1:A:1000-4602(2008)09-0033-05CultivationofAerobicGranularSludgeforSimultaneousNitrogenandPhosphorusRemovalinSBRSystemYANGGuo2jing1,2,LIXiao2ming2,ZENGGuang2ming2(1.CollegeofBiologicalandEnvironmentalSciences,ZhejiangWanliUniversity,Ningbo315100,China;2.CollegeofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082,China)Abstract:Thesuccessfulcultivationofaerobicgranularsludgeusedforsimultaneousnitrogenandphosphorusremovalinsequencingbatchreactor(SBR)wasperformedusingasyntheticdomesticwastewaterandconventionalflocculentactivatedsludgeasseedingsludge.TheresultsshowthataerobicgranularsludgecanbeculturedbydecreasingthesludgesedimentationtimeandincreasingCODloadingrateresultingintheselectivepressure.Thematuredaerobicgranularsludgehasaverycompactandregu2larstructure,asmoothsurface,anorangeyellowappearanceandapproximatelysphericalorspheroidalshapewithasizeof0.5to1.0mm,MLSSof6800mg/LandSVIof27.0mL/g.Theaverageremovalrateofammonianitrogenisnearly100%andthatofCODandPO3-4-Pisbothabove80%.Themicro2organismpopulationinthegranularsludgehasadiversification,theformedmicroecosystemismorestableandtheabilitytowithstandshockloadingandtheself2regulationabilityarestronger.Keywords:SBR;aerobicgranularsludge;simultaneousnitrogenandphosphorusremoval:(50478054);(2007R10039),3324920085CHINAWATER&WASTEWATERVol.24No.9May2008SBR,,,[1],()/[24],,[5],,,,[6],SBR,,1111SBR11SBRFig.1SchematicdiagramofSBRSBR90mm,1100mm,7L,4L,,,ACO,,,25,pH78112CODNH+4-NPO3-4-P(210400)(2035)(612)mg/L,11Tab.1ComponentsofsyntheticwastewatermgL-1MgSO47H2O25CaCl220NaHCO340FeCl37H2O1.5CuSO45H2O0.03ZnSO47H2O0.12CoCl26H2O0.15MnCl22H2O0.12KI0.18113,232Tab.2Parametersofreactorinphaseofsludgedomesticationmin3240180551043Tab.3Parametersofreactorinphaseofadjustmentmin3120240343043249:;PO3-4-PNO-3-NNO-2-N:DX-120;COD:;SVSVIMLSSMLVSS[7](TIN)NH+4-NNO-2-NNO-3-N22,;,211,,,COD,COD500mgCOD/(Ld)48mgNH+4-N/(Ld)22Fig.2Variationofcriticalsettlingvelocityofsludge3CODNH+4-N3,COD210mg/L400mg/L,NH+4-N20mg/L35mg/L40d,,,,COD80%,NH+4-N60%,,,,3CODFig.3RemovalratesofNH+4-NandCODduringdomesticationofgranularsludge,,,80d,,,COD90%,NH+4-N96%,212,SBR,,4NH+4-NTINCODPO3-4-P30d60,SRT25d,NH+4-N100%,PO3-4-PCOD80%,,/TIN60%,53:SBR249,,4NH+4-NTINCODPO3-4-PFig.4RemovalratesofNH+4-N,TIN,CODandPO3-4-Pinphaseofadjustment213,(SVI)27.0mL/g,MLSS6800mg/L;,,0.51.0mm,55Fig.5Configurationofaerobicgranularsludgeindifferentphases,,,,,,,,,,3,,SBR,,0.51.0mm,SVI27.063249:[1],,,.[J].,2003,4(7):70-73.[2]TsunedaS,OhnoT,SoejimaK,etal.Simultaneousnitro2genandphosphorusremovalusingdenitrifyingphosphate2accumulatingorganismsinasequencingbatchreactor[J].BiochemEngJ,2006,27:191-196.[3]KubaT,vanLoosdrechtMCM,BrandseFA,etal.Oc2currenceofdenitrifyingphosphorusremovingbacteriainmodifiedUCT2typewastewatertreatmentplants[J].Wa2terRes,1997,31(4):777-786.[4]MinoT,vanLoosdrechtMCM,HeijnenJJ.Microbiolo2gyandbiochemistryoftheenhancedbiologicalphosphateremovalprocess[J].WaterRes,1998,32(11):3193-3207.[5].[M]..:,1997.[6].[M].:,1993.[7].[M].:,1997.:(1980-),,,,,E-mail:[e-mail]:3151008:2007-11-20(32),2h,,,,3COD,CODGB189182002A,CIBR0.52h,TP,,:(3h)(2h)(1h),TP3.99mg/LBOD5/TP7.93,TP68.30%:[1]StgaardK,ChristenssonM,LieE,etal.Anoxicbiologicalphosphorusremovalinafull2scaleUCTprocess[J].Wa2terRes,1997,31(11):2719-2726.[2],,,.[J].(),2005,25(4):103-106.[3],,.[J].,2000,16(12):1-5.[4],,,.CIBR[J].,2006,22(19):21-24.[5].(4)[M].:,2002.:(1954-),,,,,:13808649643E-mail:[e-mail]:2008-01-0873:SBR249