ABRBAF工艺处理采油废水的中试研究苏德林

ABR—BAF苏德林1,　王建龙2,　刘凯文2,　周　定1(1.哈尔滨工业大学环境科学与工程系,黑龙江哈尔滨150090;2.清华大学核能与新能源技术研究院,北京100084)　　　:　进行了利用折流板厌氧反应器(ABR)—曝气生物滤池(BAF)工艺处理江汉油田马-25污水处理站采油废水的中试研究,主要考察了ABR的除油效果、提高废水可生化性的作用以及BAF的运行参数、处理效果等。研究结果表明:当废水流量为0.3m3/h时,ABR反应器对油的去除率平均为83.5%,对COD的去除率平均为40.8%,出水BOD5/COD值提高了24.8%。ABR一方面去除了采油废水中的大部分油,另一方面提高了采油废水的可生化性。当BAF的水力负荷为0.6m/h、进水COD平均为203.5mg/L时,出水COD平均为85.7mg/L,平均去除率为57.9%;对SS的去除率为82.7%。组合工艺对油、COD、BOD5和SS的总去除率分别为96.1%～96.9%、58.2%～75.1%、80.0%～93.1%和80.7%～87.1%。扫描电镜(SEM)观察结果显示:生物膜结构紧密,并且观察到裂口虫,生物相非常丰富。ABR—BAF工艺能够很好地处理采油废水,出水水质满足污水二级排放标准。　　:　采油废水;　折流板厌氧反应器;　曝气生物滤池:X703.1　　:A　　:1000-4602(2006)01-0022-05　　:(59978020)ABRandBAFforTreatingOil-fieldWastewater:aPilotStudySUDe-lin1,　WANGJian-long2,　LIUKai-wen2,　ZHOUDing1(1.DepartmentofEnvironmentalScienceandEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.InstituteofNuclearandNewEnergyTechnology,TsinghuaUniversity,Beijing100084,China)　　Abstract:　ThecombinedprocessofAnaerobicBaffledReactor(ABR)andBiologicalAeratedFil-ter(BAF)wasusedtotreattheoil-fieldwastewater.FortheABRstage,theexperimentwasmainlyfo-cusedontheremovalefficiencyofoilaswellastheimprovementofbiodegradabilityofwastewater;fortheBAFstage,theoperationalparameterswereinvestigatedalongwiththeremovalefficiencyofCODunderdifferenthydraulicloadingrates.TheexperimentalresultsshowthatfortheABR,theremovalefficiencyis83.5%foroiland40.8%forCOD;theratioofBOD5/CODoftheeffluentincreasesby24.8%whentheflowrateis0.3m3/h.ItrevealsthatnotonlytheABRcanremovemostoftheoilinthewastewaterbutitalsoincreasesthebiodegradabilityoftheeffluen.tFortheBAF,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.TheSEM22第22卷　第1期2006年1月　　　　　　　　　　　　中国给水排水CHINAWATERWASTEWATER　　　　　　　　　　　　　Vo.l22No.1Jan.2006observationindicatesthatthebiofilmiscompact,andthemicrobialcompositionisabundantanddiversi-form.ThecombinedprocessofABR-BAFcantreattheoil-fieldwastewatereffectivelyandthewaterqualityoftheeffluentmeetsII-classcriteriaspecifiedinIntegratedWastewaterDischargeStandard.　　Keywords:　oil-fieldwastewater;　anaerobicbaffledreactor(ABR);　biologicalaeratedfilter(BAF)　　,“”。,、,,。,,,90%[1～3]。,、、、。,,。、、、[4～10]。(ABR)(BAF)。1　材料与方法1.1　1。1　Fig.1　Schematicdiagramofexperimentalset-up,4,0.75m,60°。3m、1.8m、1.5m,8m3。3m,0.8m,5.8m,2.9m3;,,;;1m1(4,a、b、c、d)。2m、1m、2.5m,5m3。1.2　。、、,1。1　Tab.1　Parametersofceramicparticles/mm/(gcm-3)/(gcm-3)/(cm2g-1)3～60.891.564.110.090.3391.3　-25。,(100m3)(80m3),。。1.4　COD:;BOD5:;SS:;:;:。(SEM)。2　结果与讨论2.1　2。2　Tab.2　Analysisresultofrawwaterquality/℃30～45/(mgL-1)0～0.3pH6.5～7.56～9/(mgL-1)25000COD/(mgL-1)250～410150BOD5/(mgL-1)32～5130/(mgL-1)15000NH+4-N/(mgL-1)30～5025TP/(mgL-1)0.161.0/(mgL-1)30～6010/(mgL-1)1300/(mgL-1)12523第1期苏德林,等:ABR—BAF工艺处理采油废水的中试研究第22卷　　,BOD5/COD,,,。,ABR—BAF,ABR。2.2　2。2　ABRFig.2　OilremovalbyABRprocess2,0.3m3/h、47.0mg/L,83.5%。,10mg/L,ABR。3。3　BAFFig.3　OilremovallbyBAFprocess3,0.6m/h、7.3mg/L,1.4mg/L,80.3%。,2.0mg/L,76%,。2.3　ABRBOD5/COD11.8%,26.7h,BOD5/COD36.6%,24.8%;16h,BOD5/COD33.4%,21.3%;11.4h,BOD5/COD30.1%,17.4%。,,,。[11]—,BOD5/COD0.15,。,,,,。2.4　CODCOD4。4　ABRCODFig.4　CODremovalbyABRprocess,COD343.7mg/L、0.3m3/h,COD203.5mg/L,COD40.8%。COD,COD200mg/L,。0.6m/h,COD85.7mg/L,57.9%,。2.5　BOD5BOD5524第1期　　　　　　　　　　　　　　　　　　　中国给水排水　　　　　　　　　　　　　　　　　　第22卷。5　BAFBOD5Fig.5　BOD5removalbyBAFprocessBOD574.6mg/L,0.6m/hBOD52.8mg/L,96.3%。,BOD5COD,1.0m/hBOD5,91%;1.4m/h,,,BOD520mg/L,。2.6　SSSS6。6　BAFSSFig.6　SSremovalbyBAFprocess0.6m/h、SS19.2mg/L,SS3.3mg/L,82.7%。6,BAFSS,,SS,BAFSS。ABR—BAF、COD、BOD5SS3。3　Tab.3　Resultsofoil-fieldwastewatertreatmentbyABR-BAFprocess/(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　:　0.3、0.5、0.7m3/hABRHRT26.7、16、11.4h。　　3,,、COD、BOD5SS96.1%～96.9%、58.2%～75.1%、80.0%～93.1%80.7%～87.1%。,()。[12～14],。,。[8]、,COD360～950mg/L,COD60%。[5]SBR(COD400mg/L,BOD5250mg/L,30mg/L),COD100mg/L,80%～90%。[15]、,COD80%～90%。2.7　,,。,。BAF,25第1期苏德林,等:ABR—BAF工艺处理采油废水的中试研究第22卷,。,,、、。,、,,,,。3　结论①　。0.3m3/h,83.5%,BOD5/COD24.8%,,。②　0.6m/h,BAFBOD596.3%,COD57.9%,SS82.7%。③　1.4m/h,。④　SEM,,,,。:[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