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A2/O—曹 斌1, 黄 霞1, 北中 敦2, 杨瑜芳3, 杨德立3(1.清华大学环境科学与工程系,北京100084;2.东丽工业株式会社水处理技术中心,日本国;3.东丽纤维研究所中国有限公司,上海200023) : 将日本东丽株式会社生产的平板膜组件与A2/O工艺相结合,构建了A2/O—膜生物反应器(A2/O—MBR)强化生物脱氮除磷中试系统,并用于处理城市污水。结果表明,出水COD、BOD5、NH3-N、TN和TP的平均浓度分别为24.9、2.54、0.68、14.3、0.98mg/L,满足我国《城市污水再生利用景观环境用水水质》标准(GB/T18921—2002)对氮和磷的要求,并达到了《城镇污水处理厂污染物排放标准》(GB18918—2002)的一级B标准。 : A2/O; 膜生物反应器; 平板膜组件; 生物脱氮除磷; 再生回用:X703.1 :A :1000-4602(2007)03-0022-05PilotTestonEnhancedBiologicalNitrogenandPhosphorusRemovalbyUsingA2/O-MBRCAOBin1, HUANGXia1, AtsushiKitanaka2, YANGYu-fang3, YANGDe-li3(1.DepartmentofEnvironmentalScienceEngineering,TsinghuaUniversity,Beijing100084,China;2.WaterTreatmentTechnologyCenter,TorayIndustriesInc.,Japan;3.TorayFibersTextilesResearchLaboratoriesChinaCo.Ltd.,Shanghai200023,China) Abstract: BycombiningtheplatemembranebioreactorfromTorayIndustriesInc.withtheA2/Oprocess,apilottestsystemforenhancingbiologicalnitrogenandphosphorusremovalbyusingtheA2/O-membranebioreactor(A2/O-MBR)wasconstructedandusedtotreatmunicipalwastewater.TheresultsshowthattheeffluentconcentrationsofCOD,BOD5,NH3-N,TNandTPare24.9mg/L,2.54mg/L,0.68mg/L,14.3mg/L,and0.98mg/Lrespectively.Therefore,thequalityrequirementsforphosphorusandnitrogenremovalintheReuseofUrbanRecyclingWaterWaterQualityStandardforScenicEnvironmentUse(GB/T18921-2002)aremet,andI-BcriteriaspecifiedintheDischargeStand-ardofPollutantsforMunicipalWastewaterTreatmentPlant(GB18918-2002)isachieved. Keywords: A2/Oprocess; membranebioreactor; platemembranemodule; biologicalnitro-genandphosphorusremoval; reclamationandreuse (MBR),、[1]。,[2],《》(GB/T18921—2002)《》(GB18918—2002)15mg/L,0.5mg/L。,MBR,MBR22第23卷 第3期2007年2月 中国给水排水CHINAWATERWASTEWATER Vo.l23No.3Feb.2007[3、4]。MBR,。,、A2/O[5~8]。A2/OA2/O—MBR,MBR,MBR。,A2/O—MBRMLSS、(HRT)(SRT)、A2/O,MBR。,A2/O,、A2/O—MBR,。1 材料与方法1.1 ,1。 ,BOD5、COD、NH3-N、TNTP131、310、50、56、8.3mg/L。1mmMBR,、MBR,。1 A2/O—Fig.1 FlowchartofA2/O-MBRprocess :MBR1,;2,。1.2 MBR(25/),。Toray(PVDF),1。1 TorayTab.1 ParametersofTorayplatemembranemodule/μm/mm/mm/m20.0815005001.41.3 ,7,2。2 Tab.2 OperationmodeofA2/O-MBRprocessHRT/hSRT/d/%/(mgL-1)12005516—6161262420022200562—213.757.53.7515200232005622—81636312200242005817—9103631230200252005911—12121.531.56302002620051213—2006161.531.563030027200617—3111.531.56303001 : MBR1;。2 结果与讨论2.1 MLSS(MLSS)2。 2,MLSS;HRT12h6h,23曹 斌,等:A2/O—膜生物反应器强化生物脱氮除磷中试研究第23卷 第3期。MLSS,:,MBR。2 MLSSFig.2 VariationofMLSSindifferentreactorswithtime 3。HRT=12h,0.072~0.098kgCOD/(kgMLSSd);HRT=6h,0.091~0.306kgCOD/(kgMLSSd)。3 Fig.3 Variationofsludgeloadinreactorwithtime2.2 CODBOD545A2/O—MBRCODBOD5。 COD24.9mg/L,91.3%;BOD52.54mg/L,97.7%。HRTSRT,MBR。4,COD,(SMP),COD,50mg/L,。SMP、,,,[9]。4 CODFig.4 EffectofCODremoval5 BOD5Fig.5 EffectofBOD5removal2.3 NH3-NTNA2/O—MBRNH3-NTN67。 67,A2/O—MBR8,,NH3-N0.68mg/L,98.6%;TN14.3mg/L,74.4%。HRT12h6h,,NH3-NTN。,200%300%。24第23卷 第3期 中国给水排水 NH3-NFig.6 EffectofNH3-Nremoval7 TNFig.7 EffectofTNremoval ,。,20℃15℃,[10]。2006NH3-NTN,。2.4 TPA2/O—MBR8。8 TPFig.8 EffectofTPremoval ,TP。SRT=30d,TP,TP,。TP0.98mg/L,88.4%。200510,PAC,MBRTP。,10A2/O—MBR,PO3-4-P3mg/L;PAC,。,,HRTMBR。2.5 ,,。,(),2,(),,10.176NTU,20.169NTU,。2.6 3。3 A2/O—MBRTab.3 EffluentqualityindifferentoperatingstagesCOD/(mgL-1)TOC/(mgL-1)NH3-N/(mgL-1)TN/(mgL-1)TP/(mgL-1)/℃130226.00.2728320.39.020.599.235.0727~35422.513.90.319.532.9428520.611.60.3316.30.7514~27634.915.61.3313.40.9814~17733.217.51.2716.91.2813~19 3,HRT、SRT,SMP。6、7NH3-NDO()。HRT,25曹 斌,等:A2/O—膜生物反应器强化生物脱氮除磷中试研究第23卷 第3期,TN,15℃。,,。,TP,TP1mg/L,7TP。DO=1mg/L,,TN。A2/O—MBR《》(GB/T18920—2002)、《》(GB/T18921—2002)《》(GB18918—2002),,、(B)。3 结论① A2/O—MBR,HRT=6hSRT=30d,。② HRT、。③ 、。:[1] TomS,JuddS,BruceJ,etal.MembraneBioreactorforWastewaterTreatment[M].London:IWAPublishing,2000.[2] LesjeanB,GnirssR,AdamC.Processconfigurationsa-daptedtomembranebioreactorsforenhancedbiologicalphosphorusandnitrogenremoval[J].Desalination,2002,149:217-224.[3]ChangIS,ClechPL,JeffersonB,etal.Membranefoul-inginmembranebioreactorsforwastewatertreatment[J].JEnvironEng,2002,128(11):1018-1029.[4] AdhamS,GagliardoP,BoulosL,etal.Feasibilityofthemembranebioreactorprocessforwaterreclamation[J].WaterSciTechnol,2001,43(10):203-209.[5] HuZR,WentzelMC,EkamaGA.Modellingbiologicalnutrientremovalactivatedsludgesystems—areview[J].WaterRes,2003,37:3430-3444.[6]VocksM,AdamC,LesjeanB,etal.Enhancedpost-denitrificationwithoutadditionofanexternalcarbonsourceinmembranebioreactor[J].WaterRes,2005,39(14):3360-3368.[7]ThomasPR,AllenD,McGregorDL.Evaluationofcombinedchemicalandbiologicalnutrientremoval[J].WaterSciTechnol,1996,34(1-2):285-292.[8].()[M].:,2000.[9],.—[J].,2002,3(1):1-7.[10]HenzeM,HarremoesP.[M].:,1999.:(1965- ), , , , 。E-mail:xhuang@tsinghua.edu.cn::2006-10-17, 26第23卷 第3期 中国给水排水
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