BAF与前置反硝化BAF的启动与挂膜对比分析曹诚文

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1   BAFBAF1,2,1,2,2(1.,215011;2.,215011)∶,BAFCODCrNH4+-N。,,CODCrNH4+-N,,,。CODCrNH4+-N,BAFCODCr,BAFNH4+-NBAF。,BAFCODCr,NH4+-N70%90%;,BAFBAF;,BAF。∶BAF;BAF;;;:X703:A:1672-0679(2008)04-0034-05(BiologicalAeratedFilter,BAF),。BAFA/OBAF,[1]。BAFBAF,BAF,。11.1(1)。1#,2#。,2~4mm,0.89g/cm3,1.56g/cm3,4.11m2/g,33.9%。Φ10cm、200cm。25cm。(20cm),(130cm)。,1#2#,。4L,2#0.8L,3.2L,V∶V=4∶1。,,2#。,。———————————————————[]2008-09-22[](1983-),,,。()214J.ofUniversityofScienceandTechnologyofSuzhouVol.21No.4200812(EngineeringandTechnology)Dec.200841.2,,1。,,1。12,。,,7d,,。,0.54L/h,3∶1。(CODCr)NH4+-N,。33.1CODCr207.54~356.3mg/L;NH4+-N33.03~43.56mg/L;(HRT)12h;3∶1;pH6.4~7.2;16~22℃。2、3CODCr,NH4+-N。CODCr。50%~60%,CODCr100~200mg/L。CODCr。CODCr308.8mg/L,,CODCr160mg/L,,COD,,CODCr。7dNH4+-N,8CODCr。CODCr。3:4d,NH4+-N,10%。,NH4+-N。5,1#NH4+-N:BAFBAF352008()46.24%40%,2#21.78%20%,,,。2#NH4+-N1#,2#1#1#。NH4+-NCODCr,,[2]。,。,。,[3]。。CODCr[4]。1#NH4+-N65.78%,2#54.35%80%。∶,F/M,,,,,[5]。15dNH4+-N,2#1#。3.2CODCr290.63~312.35mg/L;NH4+-N37.21~43.72mg/L;HRT12h;3∶1;1∶1;pH6.4~7.2;16~22℃。3.2.1CODCrNH4+-N4、5,CODCr70%,100mg/L。1#CODCr72.9%,2#CODCr75.07%。,,,[6]。1#NH4+-N2.1mg/L91.62%;2#NH4+-N0.096mg/L99.44%。2#CODCr,NH4+-N1#。NH4+-N90%,。3.2.2NO3--N、NO2--N、TN6NO3--N、NO2--NTN。6,NH4+-NNO3--N,NO2--N。1#NO3--N、NO2--N24.74mg/L、0.01mg/L,2#NO3--N、NO2--N13.95mg/L、0.005mg/L。,0.04%(,1000),。1#2#。TN40mg/L,TN,1#TN24.32%,,,。2#TN52.48%,NO3--N、NO2--N364TN1#,2#,,,。。3.3[7]。,,CODCr50%,。,,CODCrNH4+-N70%90%,,,、、、(7),,。,1#2#,,。1#2#,,,[8]。2#,,,,。,。(b)(a)(c)(d)7:BAFBAF372008()4(1),CODCrNH4+-N,,,。CODCr50%~60%NH4+-N10%。(2)CODCrNH4+-N,NH4+-N20%NH4+-N40%,NH4+-N90%。(3)20d,CODCr,NH4+-N70%90%,1#NO3--N,NO2--NTN24.74mg/L,0.01mg/L24.32%;2#NO3--N,NO2--NTN13.95mg/L,0.005mg/L52.48%。。(4),1#2#,2#。:[1],.BAF[J].,2004,27(6):47-49.[2],,.[M].:,2002:26-27.[3],,.[J].,2006,28(8):561-564.[4]BruceER,PerryLM.EnviromentalBiotechnologyPrinciplesandApplication[M].Beijing:TsinghuaUniversityPress,2004:419-471.[5],,.[J].,2006,32(3):62-65.[6],.[J].,2005,5(4):21-23.[7].[J].,2005,20(1):53-57.[8],,,.[J].:,2005,21(4):138-141.AContrastiveAnalysisofStart-upandFilmFormationinBiologicalAeratedFilterandPre-denitrificationBiologicalAeratedFilterCAOCheng-wen1,2,SHENYao-liang1,2,HEWen-qing2(1.ProvincialKeylabofEnvironmentalScienceandEngineering,Jiangsu,USTS,Suzhou215011,China;2.SchoolofEnvironmentalScienceAndEngineering,USTS,Suzhou215011,China)Abstract:Onthebasisofthestart-upandfilmformationtestintheBAFandpre-denitrificationBAF,acon-trastiveanalysisismadeonthedifferentcharacteristicsoftheremovalofCODCrandNH4+-Nwiththetimechangingintheprocessoffilmformation.ThetestrevealsthattheremovalofCODCrdoesnotkeepinpacewiththatofNH4+-Nintheprocessoffilmformation,whiletheincreasingrateoftheaerobicheterotrophicbacteriaishigherthanthatoftheautotrophicnitrobacteriaintheprocessofbiologicalfilmgrowth.UndertheconditionoftestinginflowofCODCrandNH4+-N,theBAFofthetwomethodsrunsalmostthesameastheremovingCODCrlaw,thepre-denitrificationBAFofNH4+-NremovalrateislessthanthatofBAFintheearlyoffilmformation.Afterthethefilmstarts,bothoftheremovalrateofBAFoperationCODCrandNH4+-Nareaverageat70%and90%.Bothhavegoodabilitytoremovedenitrifyingandorganicmatter.TheNitrogencapacityofpre-denitrifica-tionBAFishigherthanthatoftheBAF;thesamebiologicalphaseexistsintheiraerobicbiofilmsectionofthememory,thedenitrificationbiologicalflocexistsinthepre-denitrificationofBAFinthememoryhypoxiapara-graph.Keywords:BAF;pre-denitrificationBAF;filmformation;contrastiveanalysis;bio-phase38

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