MBR厌氧缺氧交替工艺处理生活污水的试验研究张传义

363　　　　　　　　　　　　　　　　　　　　　　　　　　　Vol.36No.320075　　　　　　　　　JournalofChinaUniversityofMining&Technology　　　　　　　　　　May2007:20060704:(00313);(200457);(OP4476):(1976-),,,,,.E-mail:[e-mail]:13776781854:1000-1964(2007)03-0347-04MBR-/张传义1,张雁秋1,袁丽梅2,高彦林1,王强1,奚旦立2(1.,221116;2.,201620):提出一种提高生活污水脱氮除磷的交替式厌氧/缺氧-膜生物反应器(A-A/A-M)工艺.该工艺由一个交替缺氧/厌氧反应池和内置膜过滤单元的好氧池组成.通过改变好氧池底部回流污泥流向使缺氧和厌氧环境在两个独立反应器(A和B)内依次形成,以实现同步缺氧反硝化脱氮、厌氧释磷及反硝化聚磷菌的部分吸磷等过程.好氧反应器采用连续曝气方式实现硝化、过量吸磷及膜污染的控制.结果表明:A-A/A-M工艺可以实现污染物的高效去除,对COD,TN,TP的平均去除率分别达到93%,67.4%和94.1%.:脱氮除磷;A-A/A-M工艺;反硝化聚磷菌(DPB);生活污水:X703.1:AResearchonDomesticWastewaterTreatmentinanInnovativeMBRProcessZHANGChuan-yi1,ZHANGYan-qiu1,YUANLi-mei2,GAOYan-lin1,WANGQiang1,XIDan-li2(1.SchoolofEnvironmentandSpatialInformatics,ChinaUniversityofMining&Technology,Xuzhou,Jiangsu221116,China;2.SchoolofEnvironmentalScienceandEngineering,DonghuaUniversity,Shanghai201620,China)Abstract:Aninnovativealternatingofanoxicandanaerobicmembranebioreactor(A-A/A-M)processwasdevelopedtoenhancenitrogenandphosphorusremoval.Theprocesswascom-posedofacontinuousaeratedMBRandanalternatinganaerobicandanoxiczonecontainingtwoseparatedbioreactors(ReactorAandB).Byswitchingonandoffthecontrolvalves,themixedliquorwasrecycledfromtheaerobiczonetoreactorAorBalternately,thus,theanoxiccondi-tionsfordenitrification,anaerobicconditionsforphosphorusreleaseanduptakeofphosphorusbyphosphate-accumulatingbacteria(DPB)wereachievedintwosingletanksalternately.Theaerobiczone(ReactorC),inwhichahollowfiberMFmembranemodulewasimmersed,wascontinuouslyaeratedforthepurposeofnitrificationandphosphorousuptakeaswellasfoulingcontrol.Alaboratory-scaleexperimentwasappliedtoinvestigatetheperformanceoftheA-A/A-Mprocess.TheresultsshowthattheA-A/A-Mprocesscanachievehighperformanceonnutrientremoval.Undertheoperationalconditionsimposed,theremovalefficienciesofCOD,totalnitrogenandtotalphosphoruscanreachat93%,67.4%and94.1%,respectively.Keywords:nitrogenandphosphorsremoval;A-A/A-Mprocess;denitrifyingphosphate-accu-mulatingbacteria(DPB);domesticwastewater　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　36,,(membranebioreac-tor,MBR)[1-4].MBRMBRA/O-MBR./,[5-6].A/O-MBR/,,、[7].MBR,.,AhnKHChoJ[8-9]/MBR(sequencinganoxic/anaerobicMBR,SAM),,,A/O-MBR.--(A-A/A-M),.-(MBR),,、、,、、.,,(J=10L/(m2h))、(10∶2).11.11.A-A/A-M-(AB)(C).1A-A/A-MFig.1SchematicdiagramoftheA-A/A-MsystemA,BC24,2448L.(PVDF,0.22μm)C,,15L/min.(/=13/2),10L/h().5500～6500mg/L,.1.21.2.1,NaAC,NH4Cl,KH2PO4Mg,CaFe.:ρ(COD)300mg/L,ρ(TN)30mg/L,ρ(TP)6mg/L,pH7.3.,2.1.2.2、12.AB.AB.A,1,2,A,,B.1h,1,2,B,A,,B.1h,(R)2.1.2.3A-A/A-M,,.(MLSS);(DO)pH(WTWOxi340,Germany)pH(PHSJ-4A,China);COD、(TN)、(NO-3)、(TP)(PO3-4)[10].22.12.,A-A/A-MCOD,COD93%,COD21mg/L.COD:-;;,[11].3483　　　　　　　　　　:MBR-/2Fig.2EffectofnutrientremovalbyA-A/A-Mproces2,TN67.4%,TN10.2mg/L.NH4Cl,,A-A/A-M,.,TN.,.A,A,.,,,TN.,,.,A-A/A-M.A-A/A-M(2).0.35mg/L,TP94.1%..2.2A-A/A-M-,.A,15minA,B、.(120min)-DO,NO-3PO3-43,4.3DOFig.3ProfilesofDOinatypicalcycle4A-A/A-MPO3-4NO-3Fig.4ProfilesofPO3-4andNO-3inatypicalcycleofA-A/A-MoperationDO、.3,0～60min,A,A,(ρ(DO)0.5mg/L);,B,(ρ(DO)0.2mg/L).60～120min,B,A,(t30min);B,DO.DOA,B,,----,A2/O.(0～60min),--.A,A.4,0～60min,A(3mg/L),,A,,,A,A0～60min.,,B.,,,.15min,B,.,.15min,B,,,60min21.18mg/L.349　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　3660～120min,--.B,,B,A.,(DPB)-β-(PHB),.,15min(60～75min),ADPB.75min,ADPB,,,,,25.75mg/L.,,,A..,AB4.57mg/L,AB,,AB.A,B,、.A,.,B,,BA/,(A).31)/-(A-A/A-M),,,,COD,TNTP93%,67.4%94.1%.2)A-A/A-M,A,B,、,(),.3)DOA,B,.:[1]LESJEANB,GNIRSSR,ADAMC.Processconfig-urationsadaptedtomembranebioreactorsforen-hancedbiologicalphosphorusandnitrogenremoval[J].Desalination,2002(149):217-224.[2]BAETH,HANSS,TAKTM.Membranesequen-cingbatchreactorsystemforthetreatmentofdairyindustrywastewater[J].ProcessBiochemistry,2003(39):221-231.[3]KUBINK,KRAUMEM,DORAUW.Investigationofnitrogenremovalinacascadedmembranebioreac-tor[J].WaterScienceandTechnology,2002,46(4-5):241-247.[4],,,.[J].,2005,23(2):249-253.ZHANGHan-min,XIAOJing-ni,CHENGYing-jun,etal.Comparingexperimentsonenhancingni-trogenandphosphorusremovalinmembranebioreac-tor[J].ActaScientiaeCircumstintiae,2005,23(2):249-253.[5]UEDAT,HATAK,KIKUOKAY.Treatmentofdomesticsewagefromruralsettlementsbyamem-branebioreactor[J].WaterScienceandTechnology,1996(34):189-196.[6]YEOMIC,NAHYM,AhnKH.Treatmentofhouseholdwastewaterusinganintermittentlyaeratedmembranebioreactor[J].Desalination,1999(124):193-204.[7]COTEP,BUISSONH,POUNDC,etal.Immersedmembraneactivatedsludgeforthereuseofmunicipalwastewater[J].Desalination,1997(113):189-196.[8]AHNKH,SONGKG,CHOE,etal.Enhancedbiologicalphosphorusandnitrogenremovalusingasequencinganoxic/anaerobicmembranebioreactor(SAM)process[J].Desalination,2003(157):345-352.[9]CHOJ,SONGKG,LEESH,etal.Sequencinganoxic/anaerobicmembranebioreactor(SAM)pilotplantforadvancedwastewatertreatment[J].Desali-nation,2005(178):219-225.[10].[M].:,1989.[11]STEPHENSONT,JUDDS,BRINDLEK.Mem-branebioreactorsforwastewatertreatment[M].London:IWAPublishing,2000.()350