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SBR、*张强,徐国勋,吴文雯,曾林慧(上海理工大学城市建设与环境工程学院,上海200093) :,SBRpH7.5～8.5,,NO-2-N/NO-x-N90%,pHDO。,DO0.5～1.0mg/L,5.5h,,1,90%。,CODNH+4-N。,。 :SBR;;; :X703.1 :A :(K)08088(1002-1264)(2008)06-0025-04Achievement,MaintainmentandStabilityofShortcutBiologicalNitrificationinSequencingBatchReactorZHANGQiang,XUGuo-xun,WUWen-wen,ZENGLin-hui(UrbanConstructionandEnvironmentEngineering,UniversityofShanghaiforScienceandTechnology,Shanghai20093,China)Abstract:TheshortcutnitrificationanddenitrificationwereachievedefficientlybycontrollingpHvaluebetween7.5and8.5inthesequencingbatchreactor(SBR)treatingsimulatedmunicipalsewage.Thenitrosationrate(NO-2-N/NO-x-N)maintainedabove90%allthetime.TheresultalsoshowedgoodrepeatabilitiesofpHvalueandDOconcentrationduringshortnitrificationprocess.WithDOconcentrationat0.5～1.0mg/Landaerationtimeat5.5hours,theshortcutnitrificationanddenitrificationcanbekeptingoodstate,withoutanychangeafteroperationofonemonth.Onthisbasis,theimpactloadresistantcapabilityofthesystemwasalsostudied.Theresultshowedthatthesystempossessesstrongeimpactloadresistibility.Keywords:SBR;shortcutnitrification;fixed-timecontrol;lowDO pH[1]、[2],,。SBRpH,,、、,DO。,。1 1.1 1。SBR,106cm,40cm,22L。,;,,;,,,;3,20cm,,。SBR、、、,。1 SBR25 216200812URBANENVIRONMENTURBANECOLOGYVol.21No.6Dec.2008*:(568001) :2008-08-311.2 、NH4Cl、KH2PO4,。COD160～400mg/L,NH+4-N50～100mg/L,NaHCO3,NaOHpH。26～28℃。1.3 :;:N-(1-);:;COD:;pH:pHs-2C。[3]。1.4 ,4.8g/L。NH+4-N、。3d,COD92%,NH+4-N85%,、。,SBR12h,:0.5h,5～8h,2～3h,1～3h,0.5h。2 2.1 pH NaOHpH7.5～8.5,,NO-2-N,NaHCO3,23d,COD,90%,CODpH。NH+4-N2。2 NH+4-N 2,,pH,,NH+4-N39%。,NH+4-N,NH+4-N。pH,NH+4-N。 NO-3-N,NO-2-N,NO-2-N/NO-x-N50%,。NO-3-N、NO-2-NNO-2-N/NO-x-N3。3 NO-x-NNO-2-N 3,pH7.5～8.5,,NO-2-N,NO-3-N,NO-2-N/NO-x-N3%85%。NO-2-N,pH。,NO-2-N,pH。,pH7.5～8.5,SBR。 ,pH,,pH、DO、NH+4-N、NO-3-N、NO-2-N,4。,(MLSS)3.6g/L,COD150mg/L,NH+4-N50mg/L。 4,pH,60min,,,pH。pH,,,H+pH。,,NO-2-N,330min,pH,NH+4-N3mg/L。pH,NO-2-N,,26 216 2008,,pH。,pH,pH,NO-2-N,330min,,,NO-2-NNO-3-N,NH+4-NNO-2-N,。pH,。4 pH、DONO-x-N 4,DO,NH+4-N,,,DO。330min,,、,DO。 ,pH。,[4],,pH,,DO;,pH,[5]。,DO。2.2 DO 4DO(0.3～0.5、0.5～1.0、1.0～2.02.0～5.0mg/L)(1、2、3、4),DONO-2-N、COD、NH+4-N、,。(MLSS)3.6g/L,COD150mg/L,NH+4-N50mg/L。51。5 DONO-x-NNO-2-N1 DO、DO(mg/L)(min)(mgNH+4-N/(gMLSSL))COD(%)NH+4-N(%)0.3～0.54800.021596810.5～13300.032895981～23300.031498962～52800.04079690 5,12,NO-2-N80%,NH+4-N81%,DO,。DO,DO,,,,NO-2-N。12,,2NO-2-N1NO-2-N。1。 DO,34,NO-2-N,NO-3-N。,DO1mg/L,,NO-2-N,NO-2-N。 1,1,,DO,DO。23,,COD、NH+4-N95%,3NO-2-N,DO。4,,COD、NH+4-N90%,NO-2-N50%,DO,27 , SBR、NO-2-N,,。 ,DO。DO,,,NO-2-N;DO,,。,DO0.5～1.0mg/L,5.5h,,NO-2-N90%,COD、NH+4-N95%、98%。2.3 ,,。,COD,COD,50mg/L,COD。 NH+4-N,NH4ClNH+4-N。6。6 NH+4-N 6,25,5NH+4-N,。NH+4-N5NH+4-N,,(100%)。,6,4NH+4-N,NH+4-N。,NH+4-N,,,。,,。 ,,,。3 1)pH7.5～8.5,26～28℃,。23,,NO-2-N,NO-3-N7mg/L,NO-2-N90%。 2),pH、DO、NH+4-N、NO-3-N、NO-2-N。。 3)DO。,DO0.5～1.0mg/L,5.5h,。 4),COD;NH+4-N,,NH+4-N。NH+4-N,。[1] Villaverdes,F.Fdz-polancoandP.A.Garcia.NitrifyingBio-filmAcclimationtoFreeAmmoniainSubmergedBiofilters.Start-UpInfluence[J].WatRes,1999,34(2):602-610.[2] Ruizg,Jeison,Chamyr.NitrificationwithHighNitriteAccumula-tionfortheTreatmentofWastewaterwithHighAmmoniaConcen-tration[J].WatRes,2003,37(6):1371-1377.[3] .(4)[M].:,2002:246-286.[4] ,,,.pHSBR[J].,2003,9(5):549-553.[5] Y.Z.Peng,J.F.Gao,S.Y.Wang,etal.UseofpHasFuzzyControlParameterforNitrificationunderDifferentAlkalinityinSBRProcess[J].Wat.Sci.Tech,2003,147(11):77-84.:(1983-),,,,。28 216 2008