DO和pH值在短程硝化中的作用郭海娟

71Vol.7,No.120061TechniquesandEquipmentforEnvironmentalPollutionControlJan.2006DOpH郭海娟1,2　马　放1　沈耀良2(1.,150090;2.,215011)　　SBRDOpH,,DOpH。,DO0.5～1.0mg/L、pH7.5～8.0,SBR;DO0.3mg/L,DO,NO-2-N;pH6.8,NO-2-N。,,DOpH。,120mg/L,DO0.3～0.4mg/L;200mg/L,DO0.5～0.6mg/LpH6.8。　　　DO　pH　SBR　X703　　　A　　　1008-9241(2006)01-0037-05EffectsofDOandpHonnitrosoficationGuoHaijuan1,2　MaFang1　ShenYaoliang2(1.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090;2.UniversityofScienceandTechnologyofSuzhou,Suzhou215011)Abstract　ExperimentalstudyabouttheeffectsofDOandpHonnitrosoficationandhalf-nitrosoficationwascarriedoutinalaboratory-scalesequencingbatchreactor(SBR).TheresultsdemonstratedthatcontrollinglowDOandappropriatepHwasveryimportantinthecourseofnitrosofication.UndertheconditionthatDOwas0.5～1.0mg/LandpHwas7.0～7.5,nitrosoficationcouldbeeasilyachievedinSBR.IfDOwasmorethan0.3mg/L,thelowerDOwas,thehigherNO-2-Naccumulationratewas.AndstableNO-2-NaccumulationratewouldbemaintainedifpHwasmorethan6.8.Inaddition,theresultsalsoshowedthatcontrollingDOandpHwasaneffectivemeanstorealizehalf-nitrosofication.Half-nitrosoficationcouldbeattainedundertheconditionthatDOwas0.3～0.4mg/Lwhenammoniumconcentrationininfluentwas120mg/LandundertheconditionthatDOwas0.5～0.6mg/LorpHwas6.8whenammoniumconcentrationininfluentwas200mg/L.Keywords　nitrosofication;half-nitrosofication;DO;pH;sequencingbatchreactor:“”(ZD200103):2004-06-14;:2004-10-22:(1976～),,,。E-mail:[e-mail]　　2(),,。,,,。,,。SHARON-ANAMMOX[1],50%NH+4-N,,。,NO-2-N、pH、DO、(SRT)[2,3];,,DOpH()2。SBRDOpH,。1　1.1　SBR7,25cm,40cm,17L。HGX-120,;300W,(WWZK-01),。1。1　Fig.1　Schematicdiagramofanexperimentalequipment1.2　SBR8h,3,2:7h20min,40min。8.5L,,8.5L,(HRT)16h,HClNaHCO3pH。1.3　,:NH4Cl(NH+4-N),0.03g/LKH2PO4,0.4g/LMgSO47H2O,0.05g/LCaCl2H2O,0.2ml/L。(1L):0.9044gFeCl3,0.15gH3BO3,0.03gCuSO45H2O,0.18gKI,0.06gMnCl24H2O,0.02gZnSO47H2O,0.15gCoCl27H2O,0.06gNa2MoO42H2O,10g。。1.4　NO-2-N、NO-3-N、NH+4-NMLSS,[4];pHDOpH。2　2.1　13d39,200～240mg/L,(35±1)℃,pH7.5～8.0,SRT23d,DO0.5～1.0mg/L,MLSS3.0～3.5g/L,23。2　Fig.2　ProfilesofNH+4-Nconcentrationininfluentandeffluentandammoniumremovalrate3　、Fig.3　ProfilesofNO-2-Nconcentrationineffluent,NO-3-Nconcentrationineffluentandammoniumremovalrate23,240mg/L,4d12,5d,NO-2-N92%,NO-2-N93%～97%;200mg/L,NO-2-N,NH+4-N100%。,SBR。、DO、SRT、pH、(FA),DOpH。DONO-2-N[5],Laanbro-ek[6],DO,,(O2),,NO-2-N。pH,。,pH,,pH;,pH381:DOpHFA,FA,,0.6mg/LFA,FA5mg/L,,40mg/L,[7]。,DO0.5～1.0mg/L、pH7.5～8.0,SBRNO-2-N。2.2　DO,120mg/L,pH7.5～8.0,3d2dDO0.5～0.7mg/L,DO0.3～0.4mg/L,(21～25℃),,MLSS3.0g/L,45。4　Fig.4　ProfilesofNH+4-Nconcentrationininfluentandeffluentandammoniumremovalrate5　、Fig.5　ProfilesofNO-2-Nconcentrationineffluent,NO-3-Nconcentrationineffluentandammoniumremovalrate45,DO0.5～0.7mg/L,NH+4-N100%,NO-2-N89%～97%;DO0.3～0.4mg/L,NH+4-N,7～13d,NH+4-N60～80mg/L,NH+4-N50%,NO-2-N97%～98%,NO-2-N60～80mg/L。,,,DO。,120mg/L、DO0.3～0.4mg/L,。200mg/L,,DO0.5～0.6mg/L,50%～60%,NO-2-N90%,。45,DO0.3mg/L,DO,NH+4-N,NO-2-N。,DO。6120mg/LNH+4-N、NO-2-NNO-3-N,,,DO,,NO-2-N,NO-3-N,NO-2-N,DONO-2-N。6　、Fig.6　ProfilesofNH+4-N,NO-2-NandNO-3-Nconcentrationinoneperiod2.3　pH2。1:200mg/L,(30±1)℃,DO0.5～1.0mg/L,,pH(8.3～6)pHNH+4-N、NO-2-N、NO-3-NNH+4-N、NO-2-N,78。78,200mg/L,NH+4-NpH,pH7.5～8.3,89%,pH6.850%,pH6.05%,。NH+4-N:pH,3977　pHFig.7　EffectofpHonammoniumremoval8　pHFig.8　EffectofpHonNO-2-Naccumulation。pH6.8～8.3,NO-2-N93%,pH6.0,NO-2-N70%,。,pH,,FA,,NO-2-N;,pH[7],,pHNO-2-NNO-3-N,NH+4-NNO-2-N,。,pH6.8,NO-2-N。200mg/L,,pH7.5。,200mg/L,pH6.8。,,pH,,。2:120mg/L,(25±1)℃,DO0.5～1.0mg/L,,pH(8.3～6.8),4pHNH+4-NNO-2-N,910。910,pH6.8,NH+4-N,3NH+4-N100%,100%,pH,。NO-2-N,pH7.58.3,90%;pH6.8,80%～90%。pH7.5,,,,NO-2-N,,300min,,pH,NO-2-N,69%。,,pH1。9　pH1Fig.9　ProfileofammoniumremovalrateinoneperiodatdifferentpH10　pH1Fig.10　ProfileofNO-2-NaccumulationrateinoneperiodatdifferentpH3　　(1)DOpH(下转第63页)401　:NN,:NN/=ε/νR2D/(8),,5m3/h,13.2min,0.3mH2O,2.2mPas,D1.32×10-6cm2/s[7],(8),N=N11.3μm。λ0()11.3μm,G500～700s-1。5　　(1),,;(2)。,;(3),10μm,,;(4),G≥500～700s-1,10μm,。[1],..:,1997.136～138[2],,..,1999,15(11):33～35[3],,..:,1988.158～162[4]SharifiH.,ShawJ.M.Secondarydropproductioninpacked-bedcoalescers.ProceedingofInternationalConfer-enceonEnvironmentPollutionControlTechnologies.SaskatchewanCanada,1996[5][]...:,1998.26～28[6]..:,1997.160～162[7],,..:,1996(上接第40页)。,DO0.5～1.0mg/L、pH7.5～8.0,SBRNO-2-N。(2)DONO-2-N,DO0.3mg/L,DO,NH+4-N,NO-2-N。(3)pH,pH6.8,NO-2-N。(4),DOpH。,120mg/L,DO0.3～0.4mg/L;200mg/L,DO0.5～0.6mg/LpH6.8。[1],.———SHAR-ON-ANNAMOX.,2001,27(10):22～28[2]C.Hellinga,A.A.J.C.Schellen,J.W.Mulder,eta.lTheSHARONProcess:Aninnovativemethodfornitrogenre-movalfromammoniumrichwastewater.Wa.tSc.iTech.,1998,37(9):135～142[3],..,2002,18(6):29～31[4].(3).:,1989[5]N.Bernet,eta.lNitrificationatlowoxegenconcentrationinbiofilmreactor.Environ.Eng.,2001,127(10):22～28[6]H.J.LaanbroekandS.Gerards.Competitionforlimitinga-mountsofoxygenbetweennitrosomonaseuropaeaandni-trobacterwinogradskygrowninmixedcontinuouscultures.Arch.Microbiol.,1993,159:453～459[7],,..,1999,25(7):37～3963