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—周 利,刘 凯,兰 星,董 洋(,610207) :MLSS()—、。(DO)、C/N、、pH、TN。,pH=7.5、DO=1.0mg/L、C/N6,NH4+—NTN。:;MBR;、:X703.1 :A :1005-8141(2007)12-1061-03StudyonNitrogenRemovalofPorousGranulatedCarrier-membraneBioreactorZHOULi,LIUKai,LANXing,DONGYang(CollegeofArchitectureandEnvironment,SichuanUniversity,Chengdu610207,China)Abstract:Thepossibilityofshortcutnitrification-denitrificationinporousgranulatedcarrier-membranebioreactorunderhighMLSSwasex-plored.Thispaperstudiedontheinfluenceofdissolvedoxygen(DO),C/N,ammoniadensity,ammonialoadandpHonshortcutnitrification-denitri-ficationandtheremovalofnitrogen.TheexperimentalresultsshowedthattheNH4+—NandTNcouldberemovedeffectuallyatthesametimeiftheconditionswerecontrolledunderC/Nratioof6,DOof1.0mg/LandpHof7.5.Keywords:porousgranulatedcarrier;MBR;shortcutnitrification-denitrification :2007-10-29;:2007-11-19:(1985-),,,,。 ,N、P。,,。MBR,,:MLSS、、、(SRT)(HRT);、、;PLC,[1]。,MBR,、[2-4]。MBR,、[5,6]。、,NH4+—NNO2—N、NO3—N。、NO2—N/(NO2—N+NO3—N)50%。、:①25%,;②4O%,C/NTN;③50%;④;⑤,[7]。、(FA)、pH、(DO)、、、、C/N。SHARON[8]、;OLANDDO[9]。,,。1 1.1 1。 :1;2;3;4;5;6U;7。1 25L,20L。0.2um,0.2m2,600L/m2。20—40,5%。,。,,“7min、3min”。。5L/h(·1061·ResourceDevelopment&Market200723(12) ··),HRT4h,,MLSS15—30g/L,(20—25℃)。1.2 COD,;NH4+—N,;NO2—N,N—(1—)—;NO3—N,;MLSS,;pH,pHS—3;DO,。2 2.1 pHpH:①pH,pH。pH7.4—8.3,pH8[10]。②pHFA,FA。Anthonisen,FA0.1mg/L,FA,FA5mg/L,4Omg/L。pH2。2 pH2,pH7,NH4+—N。pH,,NH4+—N。pH7.5,NO2—N,NO2—N/(NO2—N+NO3—N)93.05%,pH。pHFA。CFA=1714×[NH+4-N]×10pHKbKw+10pH(1)………………,CFA(mg/L),Kb,Kb=10-9.24(20℃);Kw,Kw=0.69×10-14(20℃),KbKw=e6344273+t[11]。(1),pH=7.5,CFA=0.14mg/L(NH4+—N6.54mg/L);pH=7.5,CFA=0.19mg/L(NH4+—N9.04mg/L)。,CFA0.1mg/L,,。pH8,NH4+—N,。pH,FA,。,NH4+—N,FApHpH。NH4+—N10mg/L,(1):pH7.16,FA0.1mg/L;NH4+—N5mg/L,pH7.45(25℃)。2.2 NH4+—N60mg/L,160mg/L,NH4+—N。。FA,FA。,、。NO2—N/(NO2—N+NO3—N)NH4+—N3。,NO2—N/(NO2—N+NO3—N)NH4+—N,(1)。,、。(1),FA。,。3 NH4+—NNO2—N2.3 DODO。DO。,0.5mg/L[12]。,DO,C;DO,。,DO1.0mg/L[12]。,MBR,TN,DO。pH=7.5,DO0.5、1.0、1.5、2.0、·1062··· ResourceDevelopment&Market200723(12)2.5、3.0,4、5。4 DONO2—N、NO3—N5 DO4、5,DO1.0mg/L,,NO2—N/(NO2—N+NO3—N)60%,NO2—N20—40mg/L。DO,,TN。NH4+—NDO,C/N。C/N6,,,;,C/NMLSS()。Suewa,,[1]。DO0.5mg/L,NH4+—N,TN。,。,,。2.4 C/NC/N,C。,C/N,,,C。C,。C/N6。6,C/N6,TN、NH4+—NC/N(NH4+—NDO);C/N6,TN、NH4+—NC/N。C/N,,。C/N,。,C/N6。6 C/N2.5 :,,,([1],)。,pH=7.5、DO=1.0mg/L、C/N5,NO2—N。,。3 pH,NH4+—NFA,FApH。DO、。DO,;DO。DONH4+—NTN,C/NDO,。。,。,,pH=7.5、DO=1.0mg/L、C/N6,NH4+—NTN。:[1],.[M].:,2002.[2],,,.MBRD0[J].,2000,17(6)∶10-14.(1092)·1063·ResourceDevelopment&Market200723(12) ··,,,。,,,;,,,(),。1 ,。2005,“”,“”,“”。10;9;8;。:(1)。5 ,。,,1996—200510,,:①1996,“”,。②2000,“”,5,;③2005,“”,“”,;④,1996—2005,2005,。,,。,,,。,,。:[1],.[J].,2002,21(4)∶360-364.[2],.[J].,2000,15(6)∶705-711.[3],,,.[J].,2004,(6)∶328-332.[4].[M].:,2001∶18-19.[5]IUCN,UNEP,WWF.CaringfortheEarth:AStrategyforSustainableLiving[R].GlandSwitzerlandBooks,1991.[6].[J].·,1997,7(2)∶8-l1.[7].[M].:,1994∶190-194.(1063)[3],,,.MBR[J].,2001,22(4)∶50-55.[4],,.[J].,2003,19(7)∶45-48.[5],.MBR[J].,2003,16(4)∶42-44.[6],,,.SMSBR[J].,2001,17(11)∶8-12.[7],,.[J].,2000,16(2)∶29-31.[8]HelllngC,etal.TheSharonProcess:AnInnovativeMethodforNitrogenRe-movalfromAmmonium-richWastewater[J].WarSciTech,1998,37(9)∶135-l42.[9],.—[J].,2005,(5)∶38-40.[10]VtulBenthumWAJ.NitrogenRemovalUsingNitrifyingBiofilmGrowthandDenitrlfyingSuspendedGrowthinaBiofilmAirliftSuspensionReactorCou-pledwithaChemostat[J].WaterRes,1998,(32)∶2009-2018.[11],,.pH[J].,2005,37(12)∶1664-1666.[12],,.[M].:,2003.·1092··· ResourceDevelopment&Market200723(12)