电化学水处理新技术问世钱伯章

SLUDGECHARACTERISTICSINASUBMERGEDDOUBLE-SHAFTROTARYANAEROBICMEMBRANEBIOREACTORBaiLing1,LiuChao2,HuKan1,WangShenxiang11.CollegeofNaturalScienceJiangxiAgriculturalUniversityNanchang330045,China2.CollegeofComputerScienceandTechnology,JiangxiNomalUniversityNanchang330027,ChinaAbstract:Thesludgecharacteristicswasstudiedtreatmentforsyntheticbrewerywastewaterbysubmergeddouble-shaftrotaryanaerobicmembranebioreactorSDRAnMBR.Theresultsshowedthatsludgehadhighactivity,rotaryshearstresscannotdisruptanaerobicbio-solids,andhadwellsludgeflocs.Thesecharacteristicscoulddecreasetheeffectonsludgeactivityandparticlesizecomefromtheshearstressexcessbignessrestrainspeedinessaccumulationofextracellularpolymericsubstances(EPS)insludgemixedliquorduetoMLSSaccretionaswellasrestrainspeedinessaccretionofsludgedynamicviscositytoo.Therebymembranefoulingwasreducedconsumedly.ItwasrealizedsteadyrunningwhenoperatedatbiggishMLSSbe-tween18to19.5g·L-1,higherEPSbetween50.9to63.9mg·gMLSS-1,smallsludgeparticlesizebetween4.00to36.54μmandlargersludgevis-cositybetween6.6to7.5mPa·s-1.ThefingingwasidentifiedthatthewellactivitysludgeinSDRAnMBRandstrengthenedanti-contaminationperfor-manceofmembranemodulecanbeexplainedbycharacteristicsofhydraulicsdynamicsofthree-staterotatingflowandsynergeticeffectwithanaerobicgranulessludge.Keywordssubmergeddouble-shaftrotaryanaerobicmembranebioreactor;brewerywastewater;sludgecharacteristics3SDRAnMBR。、EPS、、。、EPS、、COD。。MLSS19g·L-1、EPS50.9～63.9mg·gMLSS-1、4.00～36.54μm6.6～7.5mPa·s-1。SDRAnMBR。[1]WilliamP,BarberandDavidC,Stuckey.Theuseoftheanaerobicbaffledreactorforwastewatertreatment:areview[J].WatRes.,1999,33(7):1559-1578.[2]ElmalehS,AbdelmoumniI.Experimentaltesttoevaluateper-formanceofananaerobicreactorprovidedwithanexternalmem-braneunit[J].WatSciTech.,1998,38(8-9):385-392.[3]ChooKH,LeeCH.Membranefoulingmechanismsinthemem-brane-coupledanaerobicbioreactor[J].WatRes.,1996,30(8):1771-1780.[4]LeeW,KangS,ShinH.Sludgecharacteristicsandtheircontribu-tiontomicrofiltrationinsubmergedmembranebioreactors[J].JMembrSci.,2003,216(1-2):217-227.[5]ChangIS,LeeCH.Membranefiltrationcharacteristicsinmem-branecoupledactivatedsludgesystem-theeffectofphysiologicalstatesofactivatedsludgeonmembranefouling[J].Desalination,1998,120(3):221-223.[6]JeisonD,VanLierJB.Cakeformationandconsolidation:Mainfactorsgoverningtheapplicablefluxinanaerobicsubmergedmembranebioreactors(AnSMBR)treatingacidifiedwastewaters[J].JournalofMembraneScience,2007,56:71-78.[7].MBR[D].:,2007:45-48.[8]AlphenaarA,P'erezM,LettingaG.Theinfluenceofsubstratetransportlimitationonporosityandmethanogenicactivityofanaerobicsludgegranules[J].ApplMicrobiolBiotechnol.,1993,39:276-280.[9].[D].:,2005.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!、3。85%70%97%。。90%、70%。。43DOI:10.16796/j.cnki.1000-3770.2009.08.033