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1,3,23,1,1,1,1(1.,100875;2.,100083;31,):,.,15%;5h.CODUV254UV410GC/MS,,COD25%45%,UV254UV4108519%7316%5115%,100%,.,,Ca2+Cl-,,;.:;;;:X741:A:025023301(2006)0520918206:2005203203;:2005204204:(2002DFBA0009):(1981),,,.3,E2mail:lh64@buaa.edu.cnEfficiencyandCharacteristicofBiologicalActivatedCarbonFluidizedBedforOil2FieldWastewaterTreatmentLIAn2jie1,3,LIUHong2,WANGWen2yan1,QUANXiang2chun1,ZHANGDan1,LIZong2liang1(1.SchoolofEnvironment,BeijingNormalUniversity,Beijing100875,China;2.DepartmentofEnvironmentalEngineering,BeihangUniversity,Beijing100083,China;31DepartmentofCivilEngineering,TheUniversityofHongKong,HongKong,China)Abstract:Inordertofindmethodtoimprovebiodegradationofoil2fieldwastewater,thebiologicalactivatedcarbonfluidizedbed(BAC2FB)processforoil2fieldwastewatertreatmentinaerobicconditionisstudied.Theresultsshowthattheprocessdemonstratedhighestremovalratewithhullactivatedcarbon(AC)ascarrierandcarrierconcentrationof15%.TheoptimizedHRToftheprocessis5h.COD,UV254,UV410,organicacidandorganiccompounds(GC/MS)weredetectedastheindextoindicatetheefficiencyofoil2fieldwastewatertreatmentbythisprocess.TheresultsshowthattheremovalrateofCODrangefrom25%to45%.TheaverageremovalrateofUV254,UV410,organicacidis8519%,7316%,5115%respectively.Theremovalrateofoilcontentisalmost100%.However,alkaneisdifficulttoremovefromwastewater.Furthermore,highconcentrationinorganicmaterialssuchascalcium,chlorinewerefoundtoaccumulateonactivatedcarbonduringtreatmentprocess,whichisharmtoadsorptionandbiodegradationoforganiccompound.Hightemperatureofoil2fieldwastewaterisalsooneoffactorstoinhibitadsorptionandbiodegradationoforganiccompound.Keywords:oil2fieldwastewater;biologicalactivatedcarbon;fluidizedbed;activatedcarbon,41048t,619%,2826t,51%,[1].,..COD3001000mg/L,,(300030000mg/L),(4065),[2,3],.19911,[4].,..,[57].(BiologicalActivatedCarbon,BAC)2070[8].BAC,,,27520065ENVIRONMENTALSCIENCEVol.27,No.5May,2006,[9].,,.11.1110L,.,15%,1,..1.:pH7715,4550,2mg/L,1Fig.1SchematicdiagramofBAC2FBprocess7mg/L,3540,HRT4h.1.2.BOD/COD:01150128,1.1/mgL-1Table1Concentrationofinorganicions/mgL-1TDSCl-TKNNH32NTPCa2+Mg2+Fe2+Al3+23000250001500018000306028500.580010201200.25.71.31.3.1(2),0131g/L()300mLCOD82315mg/L,,28120r/min,COD.15001800m2/g,15001700mg/g,315515mm,01350145g/mL,85%95%(50nm).:1000mg/g,12%,1125215mm,01430147g/mL,5%.2Table2Parallelexperiments1234/%1510151011312,2d,,30d.,,4d,,.11313.100mL2250mL,10g,451d,2.11314,.5,25354555651d,COD.1143.2211(2),2.2,1d,91953Table3AnalysismethodandapparatusCODJHR22COD()UV410752()UV254TOC2TOCpH[11]PHS23CpH()752()Cl-1Ca2+Mg2+EDTA2(GC/MS)1)TRACE2000seriesGC/MS(ThermoqusetFinnigan)1)35(2min)15/min290(10min),:250,:1L22CODFig.2EffectofCODremovalratewithtwotypeandconcentrationofACCOD,,15%10%,,COD,,,,COD;,COD,,.,,50nm,,,,g100.,15%.21221211,HRT4h,HRT,HRT.3,.HRT4h5h,,HRT5h,55%;5h,,,HRT8h,60%.5h,,,,5hHRT.3HRTCODFig.3EffectofHRTonCODremovalrate212123COD4.4,(018d),,COD,45%60%..70d,COD,,25%45%.,,;02927,,,.4.4CODFig.4RemoveeffectofCODofoil2fieldwastewaterbythisprocess5GC/MSFig.5Changesoforganiccompoundsofoil2fieldwastewaterbyGC/MSanalysis4Table4Removeeffectoforganiccompoundsofoil2fieldwastewaterbythisprocess()()/%UV410/cm-10.0530.01473.6UV254/cm-11.5760.22385.9/mmolL-110.365.0251.5TOC/mgL-118.455.2571.5/mgL-130100254nm,UV254,(TOC)[12].4,UV2541.576cm-1,01223cm-1,UV2548519%.UV410[13].4,UV41001053cm-1,01014cm-1,UV4107316%,.,TOC.GC/MS,5,18min1295,,.,(800)5.:,;,,12%81%,,10%.,,.5Table5Removalrateoforganiccompounds/min/%228.22100328.45902,429.461001,2215.288115.91399,12217.06811,2219.311220.30321.0492.36,,Ca2+Cl-,Ca2+Cl-,Ca2+Cl-.Ca2+Cl-,,.6/mgL-1Table6AdsorptioneffectofAConinorganicmaterials/mgL-1Ca2+795.8383.7Mg2+145.5164.1K+Na+5074.75350.3Cl-9446.59296.4CO2-3036.3HCO-3356.6147.5292.5121.02586.61633.6214,.COD593103mg/L,,,1d,UV254UV410.6.6Fig.6EffectoftemperatureonremovalrateoforganiccompoundbyAC6,,.,,.,4565,,,.3(1),,15%,.(2),5hHRT.(3)UV254UV410,;,TOC,COD25%45%.(4)GC/MS,22927,.(5)Ca2+Cl-,,.(6),,.:[1].[J].,2000,29(6):327328.[2],,,.COD[J].,2001,30(1):4749.[3]CamposJC,BorgesaRMH,OliveiraFilhoAM,etal.Oilfieldwastewatertreatmentbycombinedmicrofiltrationandbiologicalprocesses[J].WaterResearch,2002,36:95104.[4]ChenASC,FlynnJT,CasadayAL.Removalofoil,greaseandsuspendedsolidsfromproducedwaterwithceramiccrossmicro2filtration[J].SPEProductionEngineering,1991,(6):131135.[5]StevenISafferman,PaulLBishop.Operatingstrategiesforaerobicfluidizedbedreactors[J].JournalofHazardousMaterials,1997,54:241253.[6]LazarovaV,ManemJ.Advancesinbiofilmaerobicreactorsensuringeffectivebiofilmactivitycontrol[J].WaterScienceTechnology,1994,29:319327.[7],.[J].,1999,19(5):278283.[8]RiceRG,RobsonCM.BiologicalActivatedCarbon:EnhancedAerobicBiologicalActivityinGACSystems[M].Ann.Arbor.Science,AnnArbor,1982.[9].[J].,2002,28(12):15.[10]HojaeShim,EungBaiShin,Shang2TianYang.Acontinuousfibrous2bedbioreactorforBTEXbiodegradationbyaco2cultureofPseudomonasputidaandPseudomonasfluorescens[J].AdvancesinEnvironmentalResearch,2002,7:203216.[11],,,.pH[J].(),1998,17(4):1215.[12],,.[M].().:,1996.[13]AndersenDagO,