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:100926825(2008)2720203202:2008205224:(19742),,,,,550003(19682),,,,400045:,,,,,:,,,:X703:A0,,,,,N2O,,DO,,,,,(SimultaneousNitrificationandDenitrification,SND,),,,SBR,,,,,,,1SND,,,SND1.1,DO,DO,;,,,,,SND,,,,,,,;,SND,,,,SND1.2,2080RobersonKuenen,:ThiosphaeraPantotropha,PseudomonasSp,Alcaligenesfaecalis,,,,,SND2SNDSND,DOORP()2.1SND,,,,,,;,,2.2DODOSNDDO,;DO,DO,,,DOSNDDO,SNDDODO,DO,2.3,,302342720089SHANXIARCHITECTUREVol.34No.27Sep.2008:100926825(2008)2720204203:2008204217:(19762),,,266033:,,,,:,,,:TU113.66:A11.1,,,,1.21):a.;b.;c.2):a.;b.;c.3):a.;b.4):a.;b.;c.1.3():;;;;;1.41)2)3)4)5),,CODCOD,,COD/NH32N2.4ORPORPSNDORP,ORPSND,ORPDO,pH,ORP,DO,SNDORPORP,NO-3,ORPNH3,SND,,,:pHSND,3SND,SND,SND,SND,:1);2)NO,N2O;3),SND;4)SND,,,,,,:[1],,.[J].,1998,24(12):629.[2]..[J].,2000,6(1):13215.[3]RobersonLA,etal.Nitrogenremovalfromwaterandwaste[A].In:Microbialcontrolofpollution[C].Cambridge,UnitedKingdom:CambridgeUniversityPress,1992:2272267.[4],,,.[J].,2000,26(4):17220.[5],,.SBR[J].,2007,33(25):1962197.TheanalysisofstudyprogressonSimultaneousNitrificationandDnitrificationWANGPingJIANGShao2jieAbstract:Bycomparingthetraditionaltheoryofbiologicalnitrogenremoval,thecharacteristicaboutSimultaneousNitrificationandDenitrifi2cation(SND)israised.Inthispaper,combiningwithstudypresentsituationofhomeandabroad,acomprehensivediscussaboutthestudyonSNDisgiveninvariousaspectsincludingmicroenviromentandbiochemistrytheory.Andfurtherstudytrendofaerobicdenitrificationispre2sented,soastoachievethegoalofenhancingtheprocessingabilityandefficiencyofsystem.Keywords:biologicalnitrogenremoval,aerobicdenitrification,SimultaneousNitrificationandDenitrification(SND),microenviroment402342720089SHANXIARCHITECTUREVol.34No.27Sep.2008