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0A2/O、3，，，，[1]。、A2/O。A2/O，A2/O：①:，,COD，，[2－3]。②:VFA[4],，，。③:、,。，[5]。,、(glycogenaccumulatingnon-poly-Organisms,GAOs)。1A2/OA2/O，。，。，：。A2/O。1.11.1.1UCT，MUCT，VIPUCT[6]A2/O，，，。，BODA2/O，，，（，215011）：A2/O，A2/O，，。，。：A2/O；；:X8:B:1674-4829（2009）S2-0086-004：2009－04－09：2009－08－03：.：（1986-）,，，,.PresentSituationandProgressofImprovedProcessofA2/OWURuo-yu,LIYong，CHENYu,LIUYu-jieAbstract：ThereareseriesofimprovedprocessesofA2/Oindomesticandoverseascountriesrecently,whichaimatmakingupthedisadvantagesoftheprocessofA2/O.Thetreatmenteffecthashighlyimprovedcomparedwiththetraditionalprocess.ThedevelopmentactualityandprogressofseriesofA2/Oprocessesisintroducedbriefly,whicharedividedintotwo-sludgesystemsandone-sludgesystems.Andthedevelopmentdirectioninthefuturehasbeenputforward.Keywords：ProcessofA2/O;Improved;Two-sludgesystems222200912EnvironmentalScienceandTechnologyVol．22Supp．2Dec．2009222，，。，，UCTMUCT。，，，0.1；，。MUCT，，。VIPUCT，VIP2，。，，，。，，，。1.1.2A2/O，，ρ(COD)/ρ(TKN)，，NO3--N，，，，。，[7]A2/O。,，，。，，，，。，,。1.1.3A2/O［8］A2/O（1）。1A2/O，，，。ORP,，,。()-(),，“”，。1.1.4A+A2/OUCT，A2/O，A2/OUCT，A+A2/O（2）。2A+A2/OA2/O（）,10%(90%),20～30min,(),,。,。，UCT，，，。1.21.2.1A2/O（PASF）[9]2001A2/O。3。：①A2/O，，，，，，；②，10％90％3A2／OA2/O（）87200912[10]，，。A2/O：①,,,[11];②，;③,,GAOsPAOs。[12]（removephosphorusandnitrogencombinedactivedsludgeandbiofilmtechnology,PASF）A2/O。，PASFCOD，TP，TN，COD90%，65%85%，。1.2.2BICT,,，,、、、、。,,、［13-17］(Bi-CyclicTwo-phasebiologicalprocess,BICT)(4)。;。BICT、()()3，。；；“”，，，；，、、、。3a，，TP90%，TNTP15mg/L1.0mg/L。，，。，，，。1.2.3DephanoxDephanox[18-19]（5）KUBNA，(，)，。(DPB)，，、COD。(PHB)，。、，，。5Dephanox1.2.4A2NSBRA2NA2NSBR[20-21]（6）A2/O。--，COD；，。，。，(DPB)PHB，ρ（COD）/ρ（TN）。，（SBR）4BICT6A2NSBRSBR88222。，，ρ（COD）/ρ（TP）、、MLSSSRT。A2NSBRA2N（7）。7A2N:①,；②,,,；③,,;④,。2A2/O，A2/OA2/O，。,、。；，,,。，：①，；②、，；③，，。[][1]，，，.[M].:,1983:171-178.[2]，，.A2/O[J].，2007，32(7)：1-5.[3]KUBAT,vanLOOSDRECHTMCM,HEIJNENJJ.PhosphorusandnitrogenremovalwithminimalCODrequirementbyintegrationofdenitrifyingdephosphatationandnitrificationinatwo-sludgesystem[J].WatRes,1996,30(7):1702-1710.[4]GERBERA,VILLIERSRH.Interactionsbetweenphosphate,nitrateandorganicsubstrateinbiologicalnutrientremovalprocesses[J].WatSciTech,1987(19):183-194.[5]KUBAT.Biologicalphosphorusremovalfromwastewaterbyanerobic-anoxicsequencingbatchreactor[J].WatSciTech,1993,27(5/6):241-252.[6]，.[M].:,2005.[7]，.A2/O[J].,2000,26(6):7-10[8]，.A2/O[J].,2000,16(7):11-15.[9]，，.A2/O[J].,2001,17(8):31-33.[10].[J]:,2004,22(5);27-29.[11]RORM.Phosphateuptakeunderanoxicconditionsandfixed-filmnitrificationinnutrientremovalactivatedsludgesystem[J].WatRes,1996,30(7):1573-1584.[12].[J],,2004,20(6);16-18.[13],,.[J].,2003,19(10):44-46.[14],,.[J].,2006,28(3)：218-221.[15],,.[J].,2006,32(10):52-56.[16],,.[J].,2006,27(3)：25-29.[17],,.[J]．,2006,24(6):7-9.[18]KUBNAT.PhosphorusandnitrogenremovalwithminimalCODrequirementbyintegrationofdenitrifyingdephosphatationandnitrificationinatwosludgesystem[J].WaterRe-search,1996，30(7):1702-1710.[19]HAOXD.ContributionofP-BacteriainBNRprocessestooveralleffectsontheenvironment[J].WaterScienceandTechnology,2001，44(1):67-76.[20]，.[J].,2003,29(8):33-35.[21]，.[J].,2002,18(9):4-7.（）（）（）A2/O89