SBR系统中同步硝化反硝化好氧颗粒污泥的培养

SBR,3,,,(,410082):,(SBR).:,,CODNH3N740%928%823%985%.0510mm,MLSS45gL-1,SVI325,.:;;SBR:X7031:A:02503301(2003)04050094:(7017105550179011);(WJ2002101);(200219):(1974),,,.:20020808;:20021010CultivationofAerobicGranularSludgeforSimultaneousNitrificationandDenitrificationinSBRSystemYangQi,LiXiaoming,ZengGuangming,XieShan,LiuJingjin(DepartmentofEnvironmentalScienceandTechnology,HunanUniversity,Changsha410082,China)Abstract:ThecultivationofaerobicgranularsludgeusedfornitrogenremovalinSequencingBatchReactor(SBR)fedwithasyntheticmunicipalwastewaterwasinvestigated.Theresultsshowedthattheaerobicgranularsludgewiththehighactivityofsimultaneousnitrificationanddenitrification,couldforminthereactorbycontrollingtheadditionofcar2bonsource,andtheremovalratesofCODandNH3Nreached740%928%and823%985%,respectively,inthereactor.Thegranularformedwasaveragely0510mmindiameter,andtheMixedLiquidSuspendedSolids(MLSS)andtheSludgeVolumetricIndex(SVI)inthereactorwereabove45g/Landabout325,respectively.Comparedwiththenormalaerobicactivatedsludgeprocess,thesystemwithaerobicgranularsludgehadahighercon2centrationofeffectivebiomassandamuchstrongerabilityofnitrogenremoval.Keywords:aerobicgranularsludge;simultaneousnitrificationanddenitrification;SBRsystem,.,5%,.,,,.:2,,2.,(simultaneousnitrificationanddenitrification,SND),,SBR[1,2].,,,.,SBR,,.,,,SBR[35].,24420037ENVIRONMENTALSCIENCEVol.24,No.4July,2003转载(2030),ACO,,,.1.2,,4h,215h,5min,5min,10min,10min,7h.30L,DOSVSVIMLSSMLVSSNH32NNO-32NNO-22NCODpH,,,.1Fig.1Theschematicexperimentalequipments1.2,,1.1Table1Thecomponentofsyntheticmunicipalwastewater/mgL-1COD100400NH32N1040P10NaHCO3120MgSO47H2O124CaCl222FeCl37H2O1.5CuSO45H2O0.03ZnSO47H2O0.121.3NH32N;NO-32N;NO-22NN2(12)2;COD;SVSVIMLSSMLVSS[6];.22.1,,44d,2.(17d),,,,(MLSS)315g/L,(SVI)100.CODNH32N2131239019mg/L12132910mg/L,25177817mg/L01178157mg/L,92194%97197%.,,.40d,,.2,COD200300mg/L,NH32N2030mg/L,CODNH32N90mg/L15mg/L,70%60%,594中国科技论文在线[7,8],,.,:2,,,,(),();,SBR,,.2,,,,18d,3.,,,;,10d,.3,,,,NH32N75%20%,2,,95%.,NH3N50%,.3Fig.3Thecomparisonofthecontrastiveexperimentalresults2.3,,COD/N,,,5cm7cm,.,,,,6924中国科技论文在线中国科技论文在线(sequentialnitri2ficationanddenitrfication,SQND).3(1)SBR,,,.,,,015110mm,MLSS415g/L,SVI3215mL/g,,.(2)CODNH32N8316%9218%8213%9815%,NO-32NNO-22N1mg/L,COD.(3),,,,,.:1MasudaS,WatanableYetal.Bio2filmpropertiesandsimulta2neousnitrificationanddenitrificationinaerobicrotatingbio2logicalcontactors.WaterScienceandTechnology,1991,23(9):13551363.2ElisabethVMetal.Simultaneousnitrificationanddenitrifi2cationinbenchscalesequencingbatchreactors.WaterRe2search,1996,30(2):277284.3BeunJJ,vanLoosdrechtMCMetal.Aerobicgranulation.WaterScienceandTechnology,2000,41(4):4148.4BeunJJ,HendriksAetal.Aerobicgranulationinasequenc2ingbatchreactor.WaterResearch,1999,33(10):22832290.5MorgenrothE,ShedenentTetal.Aerobicgranulationinase2quencingbatchreactor.WaterResearch,1997,31(12):31913194.6..:,1997.7,.SBR.,2001,22(2):8790.8,..,1999,20(2):3841.8924中国科技论文在线