好氧颗粒污泥提高MBR性能的实验研究孙颖

　　　201129好氧颗粒污泥提高MBR性能的实验研究孙　颖　张金昌　张　晶　魏俊峰　徐继润(,　116622)　:在MBR反应器中分别采用活性污泥和颗粒污泥,通过比较两种不同形态的污泥在相同运行条件下膜通量的变化趋势及膜污染的变化情况,研究可提高MBR性能的措施。研究结果表明:在相同的实验条件下,颗粒化污泥MBR系统内的膜通量明显高于活性污泥系统的膜通量,同活性污泥MBR系统相比,颗粒化污泥MBR系统将显著降低操作过程的能耗。同时由于颗粒化污泥MBR系统显著地降低了膜污染的可能性,因而可使MBR系统在不用清洗的条件下长时间稳定地运行。:颗粒污泥;膜污染;MBR;废水处理;SBRRESEARCHONIMPROVINGMBRPERFORMANCEBYUSINGAEROBICGRANULARSLUDGESSunYing　ZhangJinchang　ZhangJing　WeiJunfeng　XuJirun(SchoolofEnvironmentalandChemicalEngineering,DalianUniversity,Dalian116622,China)Abstract:MBRperformancehasbeeninvestigatedwithactivatedandgranularsludges,respectively.ThroughcomparingthefluxvariationaswellasmembranefoulingstatusinbothMBRsystems,themethodofimpro-vingMBRperformancehasbeenstudied.ExperimentalresultsindicatethatthepermeatefluxofMBRwithgranularsludgesismuchhigherthanthatofthesystemwithconventionalactivatedsludgesundersameopera-tionalconditions.MBRsystembyusinggranularsludgeswillgreatlyreducetheenergyconsumptionascom-paredwithactivatedsludgessystem.Furthermore,asgranularsludgesMBRobviouslydecreasesthepossibili-tyofmembranefouling,itcansteadilyrunforalongtimewithoutcleaningascomparedwithconventionalacti-vatedsludgesMBR.Keywords:granulesludge;membranefouling;MBR;wastewatertreatment;SBR0　、,(MBR)、,MBR[1-2]。,,,MBR,MBR[3-4]。MBR,、,MBR。,、[5-8]。(TSS),,CODTSS0.4～0.6kg,CODTSS0.15kg,,[9-10]、[11-12]。,[13]。MBR。1　1.1　颗粒活性污泥培养实验,CH3COONa、NH4Cl、MgSO4·7H2O、KH2PO4、K2HPO4、FeSO4·7H2OCaCl2·2H2O,ρ(TOC)420mg/206DOI:10.13205/j.hjgc.2011.s1.092　　　201129L。MLSS3000mg/L2L4L,2,,10d,,,(SBR),SBR1。1　SBR1.2　MBR系统PVDF,(NaClO)30min,,,,MBR2。2　MBR1.3　基本分析方法(APHA1998)COD(MLSS),Shimadzu5000TOCTOC,MASTERSIZER2000,LeicaStereoscan420,O-lympusSZX9。2　2.1　好氧颗粒污泥的培养3,。3　3:,105μm。SBR,。4SBR15d,34,,SBR15d,,1100μm。4　SBR15d2.2　活性污泥和颗粒化污泥对MBR通量的影响MBR,MLSS3800mg/L,,5。5:,MBR。,MBR,MBR,MBR。207　　　2011295　TMP,2.3　MBR稳定性实验MLSS4000mg/L,MBR,6。6:MBR,60L/(m2·kPa·d),30L/(m2·kPa·d),50%。MBR,,,,。MBR,,2,,,。MBR,MBR,MBR,,。6　,MBR3　,:1),SBR,;2),MBR,MBR,MBR;3),MBR,。MBR,MBR,MBR,,。[1]WangYH,ZhuJL,ZhaoCG,etal.Amethodofremovaloftraceorganiccompoundsfromwastewaterbyultrasonicenhancementonadsorption[J].Desalination,2005,18(6):89-96.[2]MorgenrothE,SherdenT,LoosdrechtvanMCM,etal.Aerobicgranularsludgeinasequencingbatchreactor[J].WaterRes,1997(31):3191-3194.[3]TayJH,LiuQS,LiuY.Theeffectsofshearforceontheforma-tion,structureandmetabolismofaerobicgranules[J].ApplMicro-biolBiotechnol,2001(57):227-233.[4]TayJH,IvanovV,PanS,etal.Specificlayersinaerobicallygrownmicrobialgranules[J].LettApplMicrobiol,2002(34):254-257.[5]SchwarzenbeckN,BorgesJM,WildererPA.Treatmentofdairyeffluentsinanaerobicgranularsludgesequencingbatchreactor[J].ApplMicrobiolBiotechnol,2005(66):711-718.[6]ArrojoB,MosqueraCorralA,GarridoJM,etal.Aerobicgranu-lationwithindustrialwastewaterinsequencingbatchreactors[J].WaterRes,2004(38):3389-3399.[7]LiuYQ,TayJH.Cultivationofaerobicgranulesinabubblecol-umnandanairliftreactorwithdivideddrafttubesatlowaerationrate[J].BiochemEngJ,2007(34):1-7.[8]LiuY,TayJH.Stateoftheartofbiogranulationtechnologyforwastewatertreatment[J].Biotechnol,2004(22):533-563.[9]BossierP,VerstraeteW.Triggersformicrobialaggregationinac-tivatedsludge[J].ApplMicrobiolBiotechnol,1996(45):1-6.[10]McSwainBS,IrvineRL,WilererPA.Theeffectofintermittentfeedingonaerobicgranulestructure[J].WaterSciTechnol,2004(49):19-25.[11]LiuY,LiuQS.Causesandcontroloffilamentousgrowthinaero-bicgranularsludgeSBR[J].BiotechnolAdvance,2006(24):115-127.[12]KimuraK,YamatoN,YamamuraH,etal.Membranefoulinginpilot-scalemembranebioreactors(MBRs)treatingmunicipalwastewater[J].EnvironSciTechnol,2005(39):6293-6299.[13]BeunJB,HendriksA,vanMCMLoosdrecht,etal.Aerobicgranulationinasequencingbatchreactor[J].WaterRes,1999(33):2283-2290.　　116622　　(0411)87492437E-mail　[e-mail]2010-09-29208