DO对同步硝化反硝化协同除磷的影响林金銮副本

　2009292　　　　　　　　　　　　　ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY[]2008-08-28;[]2008-09-26。[](1983—),,,,。15902096323,[e-mail]。[](50878058);(8151009101000015)。DO,,　,(,510006)[](SBR),-,DO。,DO,DO1.5～2.0mg/L,TNTP90%,pH。[];;;;[]X703　　　[]A　　　[]1006-1878(2009)02-0109-04EffectofDOonSimultaneousNitrification-denitrificationwithPhosphorusRemovalLinJinluan,ZhangKefang,FangQian,ZhangChaosheng(InstituteofCivilEngineering,GuangzhouUniversity,GuangzhouGuangdong510006,China)Abstract:Thesequencingbatchreactor(SBR)wasusedtotreatsimulatedurbansewage.TheeffectofDOonsimultaneousnitrification-denitrificationwithphosphorusremovalwasinvestigatedinanaerobic-aerobicmode.Theresultsshowthat:TheeffectofDOontheremovaloforganicsubstanceinthesystemisnotsignificant;WhenDOis1.5-2.0mg/L,theremovalratesofTNandTParebothabove90%;AndtheinflectionpointofpHcurvecanindicatethefinishofnitrificationprocessinthesystem.Keywords:sequencingbatchreactoractivatedsludgeprocess;dissolvedoxygen;simultaneousnitrificationanddenitrification;phosphorusremoval;wastewatertreatment　　,--(A2/O)、UCT()、(SBR)[1,2],SBR[3,4];---,。、[5],,,、。,-SBR,[6],。,“”,,,,。1　实验部分1.1　,,NH4Cl,KH2PO4,·109·　　　　　　ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY　　　　　　200929MgSO4,CaCl2,FeSO4。:ρ(NH+4-N)26.62～28.96mg/L,(TP)6.81～7.41mg/L,COD213.6～246.4mg/L,pH7.25～7.50,20～25℃。1.2　,20cm,44cm,12L,,。,,,,。,:—1h—4h—1h——6h。,COD200mg/L,160mL17d。7.5L,300min1h。1.3　。:(1),12h,1h,5h,1h,,。DO3.5mg/L,pH7.3。20d,NH+4-NTP95%85%,;(2)DO2.5mg/L,4h,,。COD,。40d,MLSS3500mg/L,ρ(NO-3-N)4mg/L,(TN)TP85%,,。1.4　COD[7];TP[7];ρ(NH+4-N)[7];ρ(NO-2-N)N-1-[7];ρ(NO-3-N)[7];MLSS[7];DO、pH、(ORP)WTW.340i。2　结果与讨论2.1　DOm(C)∶m(N)=6.7,DOCOD、NH+4-NTN1。1:DOCOD,COD10～30mg/L,COD86%;DO0.5mg/L,NH+4-N47.1%,DO,,,TN52.3%;DO,NH+4-N,DO1.5mg/L,NH+4-NTN97.4%94.3%,1.27kg/(kg·h)。　DOTNρ(NO-3-N)23。2:DO1.5mg/L,TN1.83mg/L,;DO3.5mg/L,TN7.74mg/L。3:DO0.5～1.0mg/L,NO-3-N;DO,ρ(NO-3-N)。DO,[8],DO,,,ρ(NO-3-N),DO3.5mg/L,ρ(NO-3-N)7.54mg/L。·110·　2.DO,DOTN,DO1.5～2.0mg/L,,TN。2.2　DO[9,10],-,(DPB)13.3%。m(C)∶m(P)=29,DOTP4。4　DOTP4:DO0.5mg/L,TP25%,DO,DPB;DO1.0mg/L,TP97.6%,2.76kg/(kg·h),;DO2.0mg/L,TP,DO,NH+4-NNO-3-NDPB,,DPB,DO、ρ(NO-3-N),DPB,。DOTP5。5:(60min),DO,,,37.52mg/L43.89mg/L;TP0.5mg/L,DOTP。2.3　DOpHDOpH6。6:(0～60min),pH;(60～300min),DO1.0mg/L,pH,ρ(NH+4-N)9.61mg/L,;DO,pH,DO,。2,NH+4-N,。pH。·111·　　　　　　ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY　　　　　　2009293　结论a)SBR,-、、,。b),DOCOD,COD86%。m(C)∶m(N)=6.7、20～25℃、pH7.25～7.50,TNTP90%,DO1.5～2.0mg/L。c)pH。　　　1　,.SBR.,2003,29(11):34～372　,,..,2007,27(6):539～5423　,,.SBR.,2006,25(5):29～314　,,.SBR.(),2007,30(3):125～1325　.SBR.,2008,7:145～1476　ZengRJ,LemaireR,YuanZ,etal.Simultaneousnitrifi-cation,denitrification,andphosphorusremovalinalab-scalesequencingbatchreactor.BiotechBioeng,2003,84(2):170～1787　《》..3.:,19898　,,.DO、C/N.,2007,30(6):3～59　MerzoukiM,BernetN,DelgenesJP,etal.BiologicaldenitrifyingphosphorusremovalinSBR:Effectofaddednitrateconcentrationandsludgeretentiontime.WaterSciTechnol,2001,43(3):191～19410　,,..,2004,24(1):45～48(编辑　张艳霞)··,,、。pH,Cr6+,,Cr6+,;,,,,,。/CN101337747,2009-01-07。、、、5,、,,。,、、、,、,。/CN101337755,2009-01-07,:、,,,pH8～9,,,,;,,,,,。/CN101337756,2009-01-07·112·