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(1.,150090;2.,100084):(ABR)(BAF)-25,ABRBAF:0.3m3/h,ABR83.5%,COD40.8%,BOD5/COD24.8%ABR,BAF0.6m/hCOD203.5mg/L,COD85.7mg/L,57.9%;SS82.7%CODBOD5SS96.1%96.9%58.2%75.1%80.0%93.1%80.7%87.1%(SEM):,,ABRBAF,:;;:X703.1:A:1000-4602(2006)01-0022-05:(59978020)ABRandBAFforTreatingOil2fieldWastewater:aPilotStudySUDe2lin1,WANGJian2long2,LIUKai2wen2,ZHOUDing1(1.DepartmentofEnvironmentalScienceandEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.InstituteofNuclearandNewEnergyTechnology,TsinghuaUniversity,Beijing100084,China)Abstract:ThecombinedprocessofAnaerobicBaffledReactor(ABR)andBiologicalAeratedFil2ter(BAF)wasusedtotreattheoil2fieldwastewater.FortheABRstage,theexperimentwasmainlyfo2cusedontheremovalefficiencyofoilaswellastheimprovementofbiodegradabilityofwastewater;fortheBAFstage,theoperationalparameterswereinvestigatedalongwiththeremovalefficiencyofCODunderdifferenthydraulicloadingrates.TheexperimentalresultsshowthatfortheABR,theremovalefficiencyis83.5%foroiland40.8%forCOD;theratioofBOD5/CODoftheeffluentincreasesby24.8%whentheflowrateis0.3m3/h.ItrevealsthatnotonlytheABRcanremovemostoftheoilinthewastewaterbutitalsoincreasesthebiodegradabilityoftheeffluent.FortheBAF,whenthehydraulicloadingrateis0.6m/handtheinfluentCODis203.5mg/L,theeffluentCODis85.7mg/L,theremovalefficiencyis57.9%;theremovalefficiencyofSSis82.7%.Thetotalremovalefficiencyofoil,COD,BOD5andSSis96.1%-96.9%,58.2%-75.1%,80.0%-93.1%and80.7%-87.1%respectively.TheSEM2222120061CHINAWATER&WASTEWATERVol.22No.1Jan.2006:oil2fieldwastewater;anaerobicbaffledreactor(ABR);biologicalaeratedfilter(BAF),,,,,,,90%[13],,,[410](ABR)(BAF)111111Fig.1Schematicdiagramofexperimentalset2up,4,0.75m,603m1.8m1.5m,8m33m,0.8m,5.8m,2.9m3;,,;;1m1(4,abcd)2m1m2.5m,5m3112,11Tab.1Parametersofceramicparticles/mm/(gcm-3)/(gcm-3)/(cm2g-1)360.891.564.110.090.339113-25,(100m3)(80m3),114COD:;BOD5:;SS:;:;:(SEM)221122Tab.2Analysisresultofrawwaterquality/3045/(mgL-1)00.3pH6.57.569/(mgL-1)25000COD/(mgL-1)250410150BOD5/(mgL-1)325130/(mgL-1)15000NH+4-N/(mgL-1)305025TP/(mgL-1)0.161.0/(mgL-1)306010/(mgL-1)1300/(mgL-1)125321,:ABRBAF22[11],BOD5/COD0.15,,,,,214CODCOD44ABRCODFig.4CODremovalbyABRprocess,COD343.7mg/L0.3m3/h,COD203.5mg/L,COD40.8%COD,COD200mg/L,0.6m/h,COD85.7mg/L,57.9%,215BOD5BOD5542122(m3h-1)ABRBAF/(mgL-1)/(mgL-1)/%/(mgL-1)/(mgL-1)/%/%0.347.07.384.57.31.480.396.9COD343.7203.540.8203.585.757.975.1BOD540.674.674.62.896.393.1SS25.719.225.619.23.382.787.10.546.97.384.57.31.578.896.7COD344.9207.339.9207.394.354.572.7BOD542.069.469.45.891.686.2SS34.427.220.827.34.583.687.00.746.47.683.77.61.876.396.1COD332.2203.038.9203.0138.931.658.2BOD542.061.261.28.486.380.0SS27.822.718.322.75.476.480.7:0.30.50.7m3/hABRHRT26.71611.4h3,,CODBOD5SS96.1%96.9%58.2%75.1%80.0%93.1%80.7%87.1%,()[1214],,[8],COD360950mg/L,COD60%[5]SBR(COD400mg/L,BOD5250mg/L,30mg/L),COD100mg/L,80%90%[15],COD80%90%217,,,BAF,521,:ABRBAF22:[1]KorenA,NadavN.Mechanicalvapourcompressiontotreatoilfieldproducedwater[J].Desalination,1994,98(1-3):41-48.[2],.[J].,2001,21(8):1-3.[3]AliSA,HenryLR,DarlingtonJW,etal.Newfiltrationprocesscutscontaminantsfromoffshoreproducedwater[J].OilandGasJournal,1998,96(44):73-78.[4]TellezGT,NirmalakhandanN,GardeaTorresdeyJL.Performanceevaluationofanactivatedsludgesystemforremovingpetroleumhydrocarbonsfromoilfieldproducedwater[J].AdvancesinEnvironmentalResearch,2002,6(4):455-470.[5],,.SBR[J].,2000,13(1):41-42.[6],.[J].,2003,19(4):76-78.[7]CamposJC,BorgesRMH,OliveiraFilhoAM,etal.Oilfieldwastewatertreatmentbycombinedmicrofiltrationandbiologicalprocess[J].WaterResearch,2002,36(1):95-104.[8],,,./[J].,1999,20(1):20-26.[9]MurrayGuldeC,HeatleyJE,KaranfilT,etal.Perform2anceofahybridreverseosmosis-constructedwetlandtreatmentsystemforbrackishoilfieldproducedwater[J].WaterResearch,2003,37(3):705-713.[10]FreireDDC,CammarotaMC.Biologicaltreatmentofoilfieldwastewaterinasequencingbatchreactor[J].EnvironmentalTechnology,2001,22(10):1125-1135.[11].COD[J].,2000,10(1):17-19.[12]WangJianlong,HuangYongheng.Performanceandchar2acteristicsofananaerobicbaffledr