SBR法处理生活污水时非丝状菌污泥膨胀的发生与控制陈滢

　,,　,.SBR[J].,2005,25(1):105-108CHENYing,PENGYongzhen,LIUMin,etal.Non-filamentousactivatedsludgebulkinginSBRtreatingthedomesticwastewater[J].ActaScientiaeCircumstantiae,2005,25(1):105-108SBR陈　滢1,2,彭永臻1,＊,刘　敏2,甘一萍3,王淑莹11.,　100022;2.,　610065;3.,　100022:(SBR).,.,0.20kg·(kg·d)-10.26kg·(kg·d)-1,,.0.57kg·(kg·d)-1,,.,.,.,.,,.:;;;:0253-2468(2005)01-00105-04　　:X703.1　　:ANon-filamentousactivatedsludgebulkinginSBRtreatingthedomesticwastewaterCHENYing1,2,PENGYong-zhen1,LIUMin2,GANYi-ping3,WANGShuying11.KeyLaboratoryofBeijingforWaterQualityScience,BeijingUniversityofTechnology,Beijing,100022;2.CollegeofArchitectureandEnvironment,SichuanUniversity,Chengdu610065;3.BeijinMonicipatDrainageCorporation,Beijing100022Abstract:TheeffectsofsludgeloadsunderlowDOconditionandtemperaturesonactivatedsludgesettleabilityinaSequencingBatchReactor(SBR)fedwithdomesticwastewaterwereinvestigated.ThoughthesystemwaskeptinlowDOlevels,thesludgesettledproperlyatsludgeloadof0.20kg·(kg·d)-1and0.26kg·(kg·d)-1,respectively.DeteriorationofSVIswasobservedafterincreasingsludgeloadto0.57kg·(kg·d)-1,whichwasrelatedtotheexcessivegrowthofZoogloeacolonies.ThroughincreasingDOanddecreasingsludgeload,thezoogloeaflocsgraduallychangedtothewell-settlingsludge.Thenon-filamentousactivatedsludgebulkingalsooccurredwhenthetemperaturewasdecreasedsharply.Afterincreasingthetemperaturetotheoriginallevel,thesludgebulkingwascontrolledeffectivelyandthelowSVIwasrecovered.Whenthenon-filamentousactivatedsludgebulkingoccurred,thesludgehadajelly-likeviscousconsistencyandbecamehardtofilter.Keywords:lowDOconcentration;non-filamentousactivatedsludgebulking;temperature;sludgeload:2004-01-08;:2004-04-20:(50138010);(01KJ—001);(8022006);“863”(2003AA60110):　(1975—),,,[e-mail];,[e-mail]　　.:、、、、.,[1].2:(Filamentousbulking)(Non-filamentousbulking)[2].(Viscousbulking)(Zoogloeabulking).[3].:①()[1]②、[3,4],③,[5],④[6,7].,[8,9],,.、、.,25120051　　　　　ACTASCIENTIAECIRCUMSTANTIAEVol.25,No.1Jan.,2005DOI:10.13671/j.hjkxxb.2005.01.019,[10～12].,.,,.,,.,.SBR,,.1　1.1　(SequencingBatchReactor,SBR),1.14L,.,.,.,.SBR、、、、5..2min,2h,4h6h,1h,10min.2,.1　SBRFig.1　SchematicdiagramofSBRsystem1.2　.,:COD224～463mg·L-1,365mg·L-1;BOD112～213mg·L-1,182mg·L-1;TP8.2～15.2mg·L-1,11.29mg·L-1;PO3-4-P7.63～13.2mg·L-1,10.05mg·L-1;pH7.4～7.8,7.6.,.1.3　COD5B-3COD;BODWTWTS606SBOD;TP;PO3-4-P;MLSS.WTWinoLabOxilevel2DO.OLYMPUSBX51BX52.SV100mL30min.SVISVMLSS.(sludgevolumeindex,SVI).SVI150mL·g-1,;,.2　2.1　、.3,2h,4h6h.0.57kg·(kg·d)-1,0.26kg·(kg·d)-10.20kg·(kg·d)-1.(21±1)℃,SBR100.(MLSS)3000mg·L-1.SVI.(1):Ns=V1·S0X·(V1+V2)24t(1),NsSBR[kg·(kg·d)-1,BOD5];V1(L);V2(L);t(h);S0(mg·L-1,BOD5);X(mg·L-1).3,(DO),0.55mg·L-1,30min,DO0.1mg·L-1.,[13,14].3,.2,0.20kg·(kg·d)-10.26kg·(kg·d)-1,.SVI68mL·g-1,,SVI.50,SVI124mL·g-1,50,SVI120～135mL·g-1,.54,106　　　　　　　　　　25SVI124mL·g-1.,SVI130mL·g-1,.,,.,.2　SBRSVIFig.2　TheevolutionofSVIthroughouttheperiodsoftheresearchatdifferentsludgeloadsinSBR3　(×400)Fig.3　Zoogloeasludgeflocsfromtheperiodofnon-filamentousbulking,cycle930.57kg·(kg·d)-1,.53,,SVI150mL·g-1.53,SVI;76200mL·g-1,223mL·g-1.93,SVI212mg·L-1.,,,.,.3、.,.,(COD58%),,.,,..Eikelboom,(NS0.40kg·(kg·d)-1)[2]..2.2　、4　Fig.4　TheevolutionofSVIduringtheperiodsofthebulkingsludgecontrolled、[6,7].Jenkins,(、、H2O2).VanLeeuwen[1].,,,[7].,,.,,.4,,DO2.0mg·L-1.6,SVI.7,,0.3kg·(kg·d)-1.13,SVI140mL·g-1.39,SVI1191071　:SBRmL·g-1.,,.,,.2.3　SBR(32±1)℃,SVI150mL·g-1,(32±1)°C17℃.5,1,SV25.5%76%,SVI119.2mL·g-1337.8mL·g-1.,,.,,..,.5　Fig.5　Theeffectofthetemperatureonsludgesettlingproperty,,.,.5,,16,,.,,,.,,,,,.,,,,.,,,,.,,.3　1)SBR,.0.20kg·(kg·d)-10.26kg·(kg·d)-1,,.0.57kg·(kg·d)-1,.2),.,,.,.3),.,,,..:[1]　NovakL,LarreaL,WannerJ,etal.Non-filamentousactivatedsludgebulkinginalaboratoryscalesystem[J].WaterResearch,1993,27(8):1339—1346[2]　EikelboomDH.ProcessControlofactivatedsludgeplantsbymicroscopicinvestigation[M].London:IWAPublishing,AllianceHouse,2000:143[3]　PengYZ,GaoCD,WangSY.Non-filamentoussludgebulkingcausedbyadeficiencyofnitrogeninindustrialwastewatertreatment[J].WaterScienceandTechnology,2003,47(11):289—295[4]　,,,.[J].,2001,22(6):61—65[5]　GabbDMD,StillDA,EkamaGA,etal.Theselectoreffectonfilamentousbulkinginlongsludgeageactivatedsludgesystems[J].WaterScienceandTechnology,1991,23(Kyoto):867—877[6]　,　,.CASS[J].,2002,20(2):16—18[7]　(,).[M].:,1981:209—211[8]　,,,.[J].,2001,34(4):58—60[9]　,　.[J].,2001,18(6):18—19[10]　,,.[J].,1997,13(13):12—15[11]　ChoBC,LiawSL,HsuTT.InvestigationofthelowDOlevelsimultaneousbio-phosphorusuptakeandnitrificationprocessesintheaerobicphaseofacontinuous-flowsequencingbatchreactor(CFSBR)[A].3rdIWASpecialisedConferenceonSequencingBatchReactorTechnongly(SBR3)[C],Noosa,Australia,2004[12]　PengDC,NicolasB,DelgenesJP,etal.Aerobicgranularsludge—acasereport[J].WaterResearch,1999,33(3):890—903[13]　PalmJC,JenkinsD.Relationshipbetweenorganicloading,dissolvedoxygenconcentrationandsludgesettleabilityinthecompletelymixedactivatedsludgeprocess[J].WPCF,1980,52(10):2484—2506[14]　CarolineES,RandallCW.Evaluationoffilamentousmicroorganismgrowthfactorsinanindustrialwastewateractivateds