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28 320076JOURNALOFDALAINUNVIERSITYVo.l28No.3 Jun.2007 UASB王卫京,左秀锦,朱 波(大连大学环境与化学工程学院,辽宁大连116622):UASB.UASB,,,.,.:;UASB;;:X703:A:1008-2395(2007)03-0008-03:2006-12-20;:2007-04-20:(2005062):(1971-),,,,:.、,,.[1]IC,[2],DavidBolzonella[3].,,.,.[4]UASB,.[5].AshishSinghal[6]UASB,MinW.Lee[7](AF).,.UASB、,UASB,.1 UASB,,UASB.Ishii[8]k-εUASB.kρkt(αkuki)+xj(αkukiukj)=-αkPxi+ρkαkgi+Fki-ρk23(αkk)xi+xjαkμkeukixj+ukjxi+xjμktσtμkiαkxj+μkiαkxi(1),Fki:F=12ρ1CDA|u1-ug|(u1-ug)(2)A,CD.Ishiieta.l[9]CD,.CD=43rbgΔρσ(1-αg)-0.5(3) : 3:UASB9 -Fli=Fgi=12ρ1gΔρσ(1-αg)-0.5αg|u1-ug|(uli-ugi)(4) [10].2 [11]UASB,17.5m,10.5m,2569m3,36m3/h,1∶1.1200m3/d.,.1、2,,,,,,.,.3、4.3,4.,,0.5%.,,,,,.,,,.10 283 UASB.,,.,,,,.:[1],,,.IC[J].,2004,23(4):777-781.[2].[D].,2006.[3]DAVIDBOLZONELLA,FRANCESCOFATONE,PAOLOPAVAN,eta.lAnaerobicFermentationofOrganicMunicipalSolidWastesfortheProductionofSolubleOrganicCompounds[J].Ind.Eng.Chem.Res.,2005,44(10):3412-3418.[4],,,.UASB[J].,2005,25(2):176-179.[5],,,.EGSB(1)-[J].,2003,21(1):3-7.[6]ASHISHSINGHAL,JAMESGOMES,VVPRAVEEN,eta.lAxialDispersionModelforUpflowAnaerobicSludgeBlanketReactors[J].Biotech.Prog.1998,14(4):645-648.[7]MINWLEE,JEAYJPUNG,DAESSEE,eta.lApplicationofaMoving-Window-AdaptiveNeuralNetworktotheModel-ingofaFull-ScaleAnaerobicFilterProcess[J].Ind.Eng.Chem.Res.,2005,44(11):3973-3982.[8]ISHIIM.Thermo-fluidDynamicTheoryofTwo-PhaseFlows[M].Paris:Eyrolles,1975:164.[9]ISHIIM,ZUBERN.DragCoefficientandRelativeVelocityinBubbly,DropletorParticulateFlows[J].AIChEJ,1979,25(5):843-855.[10]WANGWJ,MAOZS.NumericalSimulationofGas-liquidFlowinaStirredTankwithaRushtonImpeller[J].ChineseJ.Chem.Eng.,2002,10(4):385-395.[11].[J].,2003(4):39-40.NumericalSmiulationontheFlowFieldinUASBAnaerobicReactorWANGWei-jing,ZUOXiu-jin,ZHUBo(CollegeofEnvironmentalandChemicalEngineering,DalianUniversity,Dalian116622,China)Abstract:TheflowfieldinUASBAnaerobicReactorAnaerobicReactorisverycomplex.Numericalsimulationontheflowfieldinthereactorisstudiedinthispaper.Resultsofthesimulationrevealedthattheliquidcirculatedinthereactorandthegasleakedawaydirectlyfromthereactor.ThegasintheUASBreactorwasnotdistributeduniformly,ithadlargespatialvariationinspace.Keywords:anaerobicreactor;UASB;two-phaseflow;numericalsimulation