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。。A/O、、、、、50%～70%[1]。BAF、、、、、、[2][3]。BAFA/OBAF[4][5-6]。、、C/N[7-8]/。4BAF。11.1-1。1#A2#O。AOO、、OAA。150mmA、O2900、2300mm4～6mm1250mmA1250、835、625、417mm41Fig.1Schematicdiagramofexperimentalset-up A/OBAF112321.2430022.2430513.310007A/OBAFA/OBAF4A/OnCOD、。CODnGB18918－2002An2/392.7%70.4%150%16.5L·h-141～6119.5～26.5℃OTN7.2%。A/OBAFX703.1A1000-3770(2010)01-0070-042009-03-092004BA649C)1978－0555-2763173E-mail05553@163.com36120101TECHNOLOGYOFWATERTREATMENTVol.36No.1Jan.,201070DOI:10.16796/j.cnki.1000-3770.2010.01.017AOn1、2/3、1/21/3。1.24～6mm0.89g·cm-14.8m2·g-135%5.4%0.5%。150%16.5L·h-141～6119.5～26.5℃5～7min6～7min7～9min。7～8d18～23min。1.3COD173.1～607.5mg·L-1390.3mg·L-1NH3-N17.8～64.8mg·L-136.1mg·L-1TN26.2～73.4mg·L-149.9mg·L-1pH7.6～8.48.0DO0～0.6mg·L-10.3mg·L-119.5～26.5℃22.0℃。COD、NH3-N、TN、NO3--N、NO2--N[9]pH、JB607。1.4[10]。1AO215d21100%2A。25d。2COD、NH3-NTN76%、85%、56%AO、、、。22.1CODCOD2。2CODn1/3、1/2、2/3、1COD304.6、296.4、298.8、309.4mg·L-1COD72.6、57.6、40.3、26.7mg·L-176.4%、80.5%、88.2%91.9%ACOD59.2%、60.8%、71.6%75.6%nACODnACODO。BAF2COD。A。AAHRTACOD。ACODOOHRTOCOD。2.2NH3-NNH3-N3。3n1/3、1/2、2/3、129.4、29.8、31.4、30.6mg·L-14.71、3.32、1.92、2.36mg·L-185.4%、88.5%、92.7%92.3%036912151821242730050100150200250300350 COD/mg L 5060708090100/%2CODFig.2EffectofvolumeratioonCODremovalrateA/OBAF7185%5mg·L-1GB18918－2002ABAF。A58.7%～66.3%62.3%。n1/32/3。nAACODOOn1AOA1.5、nAO。AAAA、AHRTnA。2.3TN4。4。n1/3、1/2、2/3141.7、41.4、40.9、42.7mg·L-117.2、15.4、11.6、12.9mg·L-1GB18918－2002A56.3%、61.2%、70.4%69.7%。O2～3mg·L-1。An2/370.4%nAHRTn1、1.5、A。n1/2、2/3、160%A1～2mg·L-1[11]1～3mg·L-1COD。2.4O1。1150%16.5L·h-141～6119.5～26.5℃AOTN7.2%O03691215182124273005101520253035404550 (TN)/mg L 0102030405060708090100/%4TNFig.4EffectofvolumeratioonTNremovalrate0369121518212427300510152025303540 (NH -N)/mg L 0102030405060708090100 /%3NH3-NFig.3EffectofvolumeratioonNH3-Nremovalrate36172DODO。BAFDO、。3/1/3、1/2、2/31BAF、COD76.4%、80.5%、88.2%91.9%85.4%、88.5%、92.7%92.3%56.3%、61.2%、70.4%69.7%。COD72.6、57.6、40.3、26.7mg·L-14.71、3.32、1.92、2.36mg·L-117.2、15.4、11.6、12.9mg·L-1。GB18918－2002A。n2/3BAF92.7%70.4%GB18918－2002A。150%16.5L·h-141～6119.5～26.5℃OTN7.2%。[1]OissonIG,NewellB.Wastewatertreatmentsystem:modeling,diagnosisandcontrol[M].London:IWAPublishing,1999.[2]WestermanPW,BicudoJR,KantardjieffA.Upflowbiologicalaeratedfiltersforthetreatmentofflushedswinemanure[J].BioresourceTechnology,2000,74(3):181-190.[3],.[M].:,2005.[4],,.BAF[J].,2007,23(21):24-27.[5].[J].,2003,26(4):23-26.[6],,.BAF[J].,2006,22():267-270.[7].[D].:,2006.[8],,.A/O[J].,2005,37(8):1053-1057.[9].[M].4.:,2002.[10],.[J].,2002,18(11):1-4.[11]YuanZhiguo,AdrianOehmen,PernilleIngildsen.Controlofnitraterecirculationflowinpre-denitrificationsystems[J].WaterSciTechnol.,2002,45(4-5):29-36.1OTab.1TNremovalrateininitialstagenAρ(TN)/mg·L-1/mg·L-1Oρ(TN)/mg·L-1/mg·L-1/%12/31/21/310.1～12.711.6～13.515.3～17.816.5～19.313.512.515.817.99.5～11.810.6～12.714.3～16.416.2～18.412.911.615.417.24.47.22.53.9INFLUENCEOFVOLUMERATIOOFANOXICFILTERONAEROBICFILTERONPROCESSPERFORMANCEOFBAFPRE-DENITRIFICATIONZhangShihua1,ZhengJun1,2,ZhangGang3,NinLiang2（1.SchoolofCivilEngineeringandArchitecture,AnhuiUniversityofTechnology,Ma'anshan243002,China;2.HuaqiEnvironmentProtectionScienceandTechnologyDevelopmentCo.Ltd.,Ma'anshan243051,China;3.EnvironmentalScienceResearch&DesignInstituteofZhejiangProvince,Hangzhou310007,China）Abstract:TheBAFpre-denitrificationprocessonthebasisoftheA/OprocessintegratestheadvantagesoftheBAFandA/Oprocesses.Theinfluenceofthefourvolumeratiosofanoxicfilter(n)toaerobicfilterontheremovaleffectoftheBAFpre-denitrificationprocessfororganicmatters(COD),ammonianitrogen(NH3-N)andtotalnitrogen（TN）inthedomesticwastewaterwasstudied.ResultsrevealedthattheremovalefficiencyofCODhaspositivecorrelationwithvolumeratiosofanoxicfiltertoaerobicfilter.Meanwhile,theprocesshasagoodperformanceofnitrificationandnitrogenremoval.TheeffluentconcentrationammonianitrogenandtotalnitrogenmeetthefirstlevelAcriteriaspecifiedinthedischargestandardofpollutantsformunicipalwastewatertreatmentplant(GB18918－2002).Whenthevolumeratiowas2/3,thehighestremovalefficienciesofNH3-NandTNwererespectively92.7%and70.4%,whichwasthebestoperationcondition.Additionally,undertheconditionsoftherefluxratiowas1.5;wastewaterfluxwas16.5L·h-1;gases/waterwas4～6;temperaturewas19.5～26.5℃,theTNremovalefficienciesreach7.2%intheanoxicfilter,whichshowssimultaneousnitrificationanddenitrification.Keywords：A/O;volumeratio;domesticwastewater;BAF;pre-denitrificationA/OBAF73