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:2005-03-01:(2003AA601010-05):(1976-),,,.1,1,2,3,1(1.,200092;2.,266033;3.,100022):.,(25),pH815,80%.pH,,01724mgPL,,.:;;;:X703:A:1001-6929(2006)01-0026-04TheStudyofShortcutNitrification2DenitrificationatNormalTemperatureZHIXia2hui1,WANGHong2wu1,DINGFeng2,PENGYong2Zhen3,MALu2ming1(1.EnvironmentalInstitute,TongjiUniversity,Shanghai200092,China;2.EnvironmentalInstitute,QingdaoTechnologicalUniversity,Qingdao266033,China;3.BeijingUniversityofTechnology,Beijing100022,China)Abstract:Somestudiesonshortcutnitrification2denitrificationofdomesticwastewateratnormaltemperatureareperformedinthisexperiment.Itisfoundthatundertheconditionoftemperatureatnormaltemperature(25)andpH815,theaveragerateofnitrosationisabove80%throughincreasingthemassconcentrationofinfluentammonia.ThemutativeruleofpHisalsostudiedinthereactionandtheregularpatternisfound.ThepHalterationwasaclearindicatorofshortcutnitrification2denitrificationreactionprogress.AccordingtotheruleofpHalteration,theautomationinshortcutnitrification2denitrificationreactioncanberealized.Theboundaryconditionoftransformationbetweenshortcutnitrification2denitrificationandnitrification2denitrificationisinvestigated.Themassconcentrationoffreeammoniarestrainingammoniumoxidizingbacteriais01724mgPL.Whentheconcentrationishigher,thegrowthofammoniumoxidizingbacteriawillberestrained,butwithnorestrainingonnitriteoxidizingbacteria.Keywords:shortcutnitrification2denitrification;normaltemperature;rateofnitrosation;inhibitoryconcentration2.NO2-,,,..:(FA),DO,,pH,[1].445,2030.25,,[24].SHARON3035[5],,,,,..11112SBR(1),12L.,;,;,,.1SBRFig.1Schematicdiagramofsludgebatchreactor112CODCr;191ResearchofEnvironmentalSciencesVol.19,No.1,2006;;N-(1-)-;MLSS;pHpH(WTW);DODO.2,()50150mgPL,(CODCr)400900mgPL,NaOHpH.,(MLSS)35gPL,1.211:KN=10(0.051T-1.158)(1)N,max=0.47e0.098(T-15)(2),T,;KN,mgPL;N,maxT,d-1.(2),,.pH815,(DO)23mgPL,(MLSS)415gPL,()8085mgPL,20,25,28,3035,(2).2,30352h80%,45h;2528,6h80%,20,6h50%.(25),.P:120;225;328;430;5352()()Fig.2Profileofammonianitrogenandnitrousnitrogenatdifferenttemperature2,,3035,,,45h,,3h;25286h,2h.(30),,,.(25),2h.(20),6h,.:pH,,80%.212pHpH.,pH714813,pH8[68].pH,pH[9].25,()68mgPL,pH81737116()()(3).pH817388%,()1915mgPL;pH711670%,()11185mgPL,pH,.pH,pH81731pH,4.4,pH:015h,1h,.pH,.51,()pH.()pH.pH,5pH.pH,.213()(FA).FA[1011].[12],()721:pH:18.73;27.163pH()()Fig.3ProfileofammonianitrogenwithdiffrerentpH4pH8.731pHFig.4ProfileofpHwheninfluentpHis8.73()P(mgL-1):1124.1;297.37;364.587()()()Fig.7Profileofammonianitrogenandnitrousnitrogenwithdifferentinfluentmassconcentrationofammonianitrogen5()pHFig.5ProfileofthemassconcentrationofammonianitrogenandpH.625,pH815,().6,(),.()100mgPL,()30mgPL,5319mgPL,90%.,.6()Fig.6Removalofammonianitrogenwithdifferentmassconcentrationofammonianitrogen725,pH815,(),1.(),56h,2h;(),67h,3h.(),,,,,,1.8219214.8pH7145,25,()38,4366mgPL,.()43mgPL,.()38mgPL,,,,,.(),pH,,[13].,(25)01724mgPL.,.,,,.,()66mgPL,,015%.8()Fig.8Profileofammonianitrogen,nitrousnitrogenandnitrateatdifferentinfluentmassconcentrationofammonianitrogen3a.,(25),pH.b.pH815.c.pH,,.d.01724mgPL,,.:[1],,.-[J].,2000,16(2):2931.YuanLinjiang,PengDangcong,WangZhiying.Shortcutnitrification2denitrification[J].ChinaWaterandWastewater,2000,16(2):2931.[2],,,.[J].,2000,32(1):17.WangZhiying,LiuChaoxiang,PengDangcong,etal.Studyontheselectionprocessofnitrificationinbiologicalfluidizedbedunderhighconcentrationogammonia[J].JournalofXianUniversityofArchtecture&Technology,2000,32(1):17.[3].[J].,2000,26(11):2123.ShiYongsheng.Technologyofnitrosificationofammoniatedwastewater[J].WaterandWastewater,2000,26(11):2123.[4]CollivignarelliC,BertanzaG.Simultaneousnitrification2denitrificationprocessesinactivatedsludgeplants:performanceandapplicability[J].WaterSciTechnol,1994,40(4P5):187194.[5]OussamaTurk.Maintainingnitritebuild2upinasystemacclimatedtofreeammonia[J].WaterRes,1989,23(11):13831388.[6],.[M].:,1998.ZhengXingcan,LiYaxin.Phosphorusandnitrogenremovalfromwastewater[M].Beijing:Architecture&BuildingPress,1998.[7]RalfStuven.Theimpactoforganicmatteronnitricoxideformationbynitrosomonaseuropaea[J].ArchMicrobiol,1992,158:439443.[8]vanBenthumWAJ.Nitrogenremovalusingnitrifyingbiofilmgrowthanddenitrifyingsuspendedgrowthinabiofilmairliftsuspensionreactorcoupledwithachemostat[J].WaterRes,1998,32:20092018.[9],,,.[J].,1994,20(4):230235.PanGuimin,ChenFenggang,JinChengji,etal.Studyonnitrosificationofcoalgasificationwastewater[J].TechnologyofWaterTreatment,1994,20(4):230235.[10],.P[J].,2001,21(1):7983.FangShi,LiXiaohuan.AstudyonremovingnitrogenfromhighlynitrogenousMGwastewaterwthprocessofshortenednitrificationPdenitrification[J].ActaScientiaeCircumstantiae,2001,21(1):7983.[11],,,.[J].,2001,17(5):2428.ZhaoZongsheng,LiuHongliang,LiBingwei,etal.Thewayofnitrogenremovalfromwastewaterhavinghighammorianitrogenconcent[J].ChinaWaterandWastewater,2001,17(5):2428.[12],,,.[J].(),2000,23(3):7476.ChenJida,ChenZhisheng,ZhangGuanghui,etal.Studyonnitrosificationofammoniatedwastewater[J].JournalofChongqingUniversity(NaturalScienceEdition),2000,23(3):7476.[13]HyungseokYoo