UASB厌氧反应器内流场数值模拟

28320076JOURNALOFDALIANUNIVERSITYVol.28No.3Jun.2007UASB,,(,116622):UASB.UASB,,,.,.:;UASB;;:X703:A:100822395(2007)0320008203:2006212220;:2007204220:(2005062):(1971-),,,,:.,,.[1]IC,[2],DavidBolzonella[3].,,.,.[4]UASB,.[5].AshishSinghal[6]UASB,MinW.Lee[7](AF).,.UASB,UASB,.1UASB,,UASB.Ishii[8]k-UASB.kk55t(kuki)+55xj(kukiukj)=-k5P5xi+kkgi+Fki-k235(kk)5xi+55xjkke5uki5xj+5ukj5xi+55xjkttki5k5xj+ki5k5xi(1),Fki:F=121CDA|u1-ug|(u1-ug)(2)A,CD.Ishiietal.[9]CD,.CD=43rbg(1-g)-0.5(3):3:UASB9-Fli=Fgi=121g(1-g)-0.5g|u1-ug|(uli-ugi)(4)[10].2[11]UASB,17.5m,10.5m,2569m3,36m3/h,11.1200m3/d.,.12,,,,,,.,.34.3,4.,,0.5%.,,,,,.,,,.10283UASB.,,.,,,,.:[1],,,.IC[J].,2004,23(4):7772781.[2].[D].,2006.[3]DAVIDBOLZONELLA,FRANCESCOFATONE,PAOLOPAVAN,etal.AnaerobicFermentationofOrganicMunicipalSolidWastesfortheProductionofSolubleOrganicCompounds[J].Ind.Eng.Chem.Res.,2005,44(10):341223418.[4],,,.UASB[J].,2005,25(2):1762179.[5],,,.EGSB(1)-[J].,2003,21(1):327.[6]ASHISHSINGHAL,JAMESGOMES,VVPRAVEEN,etal.AxialDispersionModelforUpflowAnaerobicSludgeBlanketReactors[J].Biotech.Prog.1998,14(4):6452648.[7]MINWLEE,JEAYJPUNG,DAESSEE,etal.ApplicationofaMoving2Window2AdaptiveNeuralNetworktotheModel2ingofaFull2ScaleAnaerobicFilterProcess[J].Ind.Eng.Chem.Res.,2005,44(11):397323982.[8]ISHIIM.Thermo2fluidDynamicTheoryofTwo2PhaseFlows[M].Paris:Eyrolles,1975:164.[9]ISHIIM,ZUBERN.DragCoefficientandRelativeVelocityinBubbly,DropletorParticulateFlows[J].AIChEJ,1979,25(5):8432855.[10]WANGWJ,MAOZS.NumericalSimulationofGas2liquidFlowinaStirredTankwithaRushtonImpeller[J].ChineseJ.Chem.Eng.,2002,10(4):3852395.[11].[J].,2003(4):39240.NumericalSimulationontheFlowFieldinUASBAnaerobicReactorWANGWei2jing,ZUOXiu2jin,ZHUBo(CollegeofEnvironmentalandChemicalEngineering,DalianUniversity,Dalian116622,China)Abstract:TheflowfieldinUASBAnaerobicReactorAnaerobicReactorisverycomplex.Numericalsimulationontheflowfieldinthereactorisstudiedinthispaper.Resultsofthesimulationrevealedthattheliquidcirculatedinthereactorandthegasleakedawaydirectlyfromthereactor.ThegasintheUASBreactorwasnotdistributeduniformly,ithadlargespatialvariationinspace.Keywords:anaerobicreactor;UASB;two2phaseflow;numericalsimulation