SBR法处理生活污水时非丝状菌污泥膨胀的发生与控制

,,,.SBR[J].,2005,25(1):105-108CHENYing,PENGYongzhen,LIUMin,etal.Non2filamentousactivatedsludgebulkinginSBRtreatingthedomesticwastewater[J].ActaScientiaeCircumstantiae,2005,25(1):105-108SBR1,2,1,3,2,3,111,100022;2.,610065;31,100022:(SBR).,.,0120kg(kgd)-10126kg(kgd)-1,,.0157kg(kgd)-1,,.,.,.,.,,.:;;;:025322468(2005)01200105204:X70311:ANon2filamentousactivatedsludgebulkinginSBRtreatingthedomesticwastewaterCHENYing1,2,PENGYong2zhen1,LIUMin2,GANYi2ping3,WANGShuying11.KeyLaboratoryofBeijingforWaterQualityScience,BeijingUniversityofTechnology,Beijing,100022;2.CollegeofArchitectureandEnvironment,SichuanUniversity,Chengdu610065;31BeijinMonicipatDrainageCorporation,Beijing100022Abstract:TheeffectsofsludgeloadsunderlowDOconditionandtemperaturesonactivatedsludgesettleabilityinaSequencingBatchReactor(SBR)fedwithdomesticwastewaterwereinvestigated.ThoughthesystemwaskeptinlowDOlevels,thesludgesettledproperlyatsludgeloadof0120kg(kgd)-1and0126kg(kgd)-1,respectively.DeteriorationofSVIswasobservedafterincreasingsludgeloadto0157kg(kgd)-1,whichwasrelatedtotheexcessivegrowthofZoogloeacolonies.ThroughincreasingDOanddecreasingsludgeload,thezoogloeaflocsgraduallychangedtothewell2settlingsludge.Thenon2filamentousactivatedsludgebulkingalsooccurredwhenthetemperaturewasdecreasedsharply.Afterincreasingthetemperaturetotheoriginallevel,thesludgebulkingwascontrolledeffectivelyandthelowSVIwasrecovered.Whenthenon2filamentousactivatedsludgebulkingoccurred,thesludgehadajelly2likeviscousconsistencyandbecamehardtofilter.Keywords:lowDOconcentration;non2filamentousactivatedsludgebulking;temperature;sludgeload:2004201208;:2004204220:(50138010);(01KJ001);(8022006);863(2003AA60110):(1975),,,[e-mail];,[e-mail].:.,[1].2:(Filamentousbulking)(Non2filamentousbulking)[2].(Viscousbulking)(Zoogloeabulking).[3].:()[1][3,4],,[5],[6,7].,[8,9],,..,25120051ACTASCIENTIAECIRCUMSTANTIAEVol.25,No.1Jan.,2005,[1012].,.,,.,,.,.SBR,,.1111(SequencingBatchReactor,SBR),1.14L,.,.,.,.SBR5..2min,2h,4h6h,1h,10min.2,.1SBRFig.1SchematicdiagramofSBRsystem1.2.,:COD224463mgL-1,365mgL-1;BOD112213mgL-1,182mgL-1;TP8121512mgL-1,11129mgL-1;PO3-42P71631312mgL-1,10105mgL-1;pH714718,716.,.113COD5B23COD;BODWTWTS606PSBOD;TP;PO3-42P;MLSS.WTWinoLabOxilevel2DO.OLYMPUSBX51PBX52.SV100mL30min.SVISVMLSS.(sludgevolumeindex,SVI).SVI150mLg-1,;,.22.1.3,2h,4h6h.0157kg(kgd)-1,0126kg(kgd)-10120kg(kgd)-1.(211),SBR100.(MLSS)3000mgL-1.SVI.(1):Ns=V1S0X(V1+V2)24t(1),NsSBR[kg(kgd)-1,BOD5];V1(L);V2(L);t(h);S0(mgL-1,BOD5);X(mgL-1).3,(DO),0155mgL-1,30min,DO011mgL-1.,[13,14].3,.2,0120kg(kgd)-10126kg(kgd)-1,.SVI68mLg-1,,SVI.50,SVI124mLg-1,50,SVI120135mLg-1,.54,60125SVI124mLg-1.,SVI130mLg-1,.,,.,.2SBRSVIFig.2TheevolutionofSVIthroughouttheperiodsoftheresearchatdifferentsludgeloadsinSBR3(400)Fig.3Zoogloeasludgeflocsfromtheperiodofnon2filamentousbulking,cycle930157kg(kgd)-1,.53,,SVI150mLg-1.53,SVI;76200mLg-1,223mLg-1.93,SVI212mgL-1.,,,.,.3.,.,(COD58%),,.,,..Eikelboom,(NS0140kg(kgd)-1)[2]..2.24Fig.4TheevolutionofSVIduringtheperiodsofthebulkingsludgecontrolled[6,7].Jenkins,(H2O2).VanLeeuwen[1].,,,[7].,,.,,.4,,DO210mgL-1.6,SVI.7,,013kg(kgd)-1.13,SVI140mLg-1.39,SVI1197011:SBRmLg-1.,,.,,.213SBR(321),SVI150mLg-1,(321)C17.5,1,SV2515%76%,SVI11912mLg-133718mLg-1.,,.,,..,.5Fig.5Theeffectofthetemperatureonsludgesettlingproperty,,.,.5,,16,,.,,,.,,,,,.,,,,.,,,,.,,.31)SBR,.0120kg(kgd)-10126kg(kgd)-1,,.0157kg(kgd)-1,.2),.,,.,.3),.,,,..:[1]NovakL,LarreaL,WannerJ,etal.Non2filamentousactivatedsludgebulkinginalaboratoryscalesystem[J].WaterResearch,1993,27(8):13391346[2]EikelboomDH.ProcessControlofactivatedsludgeplantsbymicroscopicinvestigation[M].London:IWAPublishing,AllianceHouse,2000:143[3]PengYZ,GaoCD,WangSY.Non2filamentoussludgebulkingcausedbyadeficiencyofnitrogeninindustrialwastewatertreatment[J].WaterScienceandTechnology,2003,47(11):289295[4],,,.[J].,2001,22(6):6165[5]GabbDMD,StillDA,EkamaGA,etal.Theselectoreffectonfilamentousbulkinginlongsludgeageactivatedsludgesystems[J].WaterScienceandTechnology,1991,23(Kyoto):867877[6],,.CASS[J].,2002,20(2):1618[7](,).[M].:,1981:209211[8],,,.[J].,2001,34(4):5860[9],.[J].,2001,18(6):1819[10],,.[J].,1997,13(13):1215[11]ChoBC,LiawSL,HsuTT.InvestigationofthelowDOlevelsimultaneousbio2phosphorusuptakeandnitrificationprocessesintheaerobicphaseofacontinuous2flowsequencingbatchreactor(CFSBR)[A].3rdIWASpecialisedConferenceonSequencingBatchReactorTechnongly(SBR3)[C],Noosa,Australia,2004[12]PengDC,NicolasB,DelgenesJP,etal.Aerobicgranularsludgeacasereport[J].WaterResearch,1999,33(3):890903[13]PalmJC,JenkinsD.Relationshipbetweenorganicloading,dissolvedoxygenconcentrationandsludgesettleabilityinthecompletelymixedactivatedsludgeprocess[J].WPCF,1980,52(10):24842506[14]CarolineES,RandallCW.Evaluationoffilamentousmicroorganismgrowthfactorsinanindustrialwastewateractivatedsludgesystem[J].WaterScienceandTechnology,1998,37(425):26327080125