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(,,100875),,,,,ReviewofstudyonmultiphaseflowrelatedtosoilpollutionbyLNAPLsinunsaturatedzoneZhengBingChenJiajunLiWeiZhiTianyi(StateKeyJointLaboratoryofEnvironmentalSimulationandPollutionControl,InstituteofEnvironmentalSciences,BeijingNormalUniversity,Beijing100875)AbstractLightnon2aqueousphaseliquid(LNAPL)coexistswithwaterandairapproximatelyasaseparateandimmisciblephaseafterlightpetroleumproductsspillorleakageinsubsurface,andcontaminatesbothsoilandground2wa2ter.SimultaneousmovementandinteractionofLNAPL,waterandairinunsaturatedzonemakeupamultiphaseflowsystem.Inthispaper,theoccurrenceandhazardofLNAPLcontaminationproblemsaswellasLNAPLflowandmigrationinsubsurfacearepresentedinbrief.ThenadvancesandachievementsonmultiphaseflowstudyrelatedtoLNAPLseepagebothinChinaandabroadareintroducedandreviewed,includingsimulationachievements,laboratoryexperimentalstudymethodsandresults.Atthesametime,someproblemsexistingincurrentstudyandissuesneededtobefurtherapproachedarepresented.Keywordslightnon2aqueousphaseliquid(LNAPL);unsaturation;multiphaseflow;soilcontamination:(40272107):2003-05-23;:2003-09-30:(1979),,,:E2mail:zbing@mail.bnu.edu.cn,,(non-aqueousphaseliquid,NAPL),,(lightnon-aqueousphaseliquid,LNAPL),,;,,,LNAPLs,,(),,,,;,1,54Vol.5,No.420044TechniquesandEquipmentforEnvironmentalPollutionControlApr.2004©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],,,,LNAPL,,LNAPL,LNAPL,,LNAPLLNAPL,,,LNAPL,LNAPL,,LNAPL,,LNAPLLNAPL,,;,,LNAPLs4:,,NAPL;;,[1],,;,,2,(),,,22[2]2.1,,[3]32070,,Buckley2Leverett,[4];,,[5],;,,,,Faust[6]Sleep[7]Faust[6],,,,,,,,2,(p)2(S)(k)2(S),k2S2p[8],,[4]Abriola[9];,,,Corap2cioglu[10]415©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4]Kim[11]LNAPL;LNAPL,LNAPL,,NAPL2.22060,,[3],NAPL:(1)NAPL;(2);(3);(4)NAPL;(5);(6)[12](Abdul[13]),LNAPL,LNAPL;,,LNAPL;LNAPLLNAPL;LNAPLLNAPL[1]Marina[14]NAPL,,;Schroth[15],LNAPL;,LNAPL,[3],,NAPL,[16]Parker[17](,22)NAPL2,,,Kechavarzi[18],;,Ishakoglu[19],,,3:,,k2S2pEckberg[20]LANPL,LNAPL;222,Lenhard[2];,,;,,Parker[17]k2S2pHost[3]22,Parker[17]Dane[21]LNAPLDNAPLPc(S)Knw(S),,Lenhard[22]2,,Lenhard[23]LNAPL,LNAPL,5h,514:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[8],;LNAPLLNAPL3,,:,,,,;,,,,[24][25],(),2-,,,,[5],,;LNAPL,,LNAPL,LNAPL3;,LNAPL;LNAPL;LNAPL;LNAPL[26],,(LNAPLs),,,[27](LNAPL),LNAPL,,,,,,,LNAPL,[28]22BCBS2pS2k,;,4,,;,,,,,;LNAPL(,,),,;,;,615©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1),,;(2),();(3),,,[1]CharlesJ.N.,StevenD.A.,RandallR.R.Lightnonaque2ousphaseliquid.GroundWaterIssue,EPA/540/S295/500,1995[2]Lenhard,R.J.,DaneJ.H.Measurementandsimulationofone2dimensionaltransientthree2phaseflowformonotonicliquiddrainage.WaterResour.Res.,1988,24:853863[3]Host2MadsenJ.,HoghJ.Laboratoryandnumericalinvestiga2tionsofimmisciblemultiphaseflowinsoil.JournalofHydrolo2gy,1992,135:1352[4]AbriolaL.M.Multiphaseflowandtransportmodelsfororganicchemicals:AreviewandassessmentreportEPRIEA25976,Project237725.ElectricPowerResearchInstitute,PaloAlto,CA,1988[5].[].:,1996[6]FaustC.R.Transportofimmisciblefluidswithinandbelowtheunsaturatedzone:Anumericalmodel.WaterResour.Res.,1985,21(3):587596[7]Sleep,B.E.,J.F.Sykes.Compositionalsimulationofground2watercontaminationbyorganiccompounds.1.Modeldevelop2mentandverification.WaterResour.Res.,1993,29(6):16971708[8]VanGeel,P.J.,Sykes,J.F.Theimportanceoffluidentrap2ment,saturationhysteresisandresidualsaturationsonthedis2tributionofalighter2than2waternon2aqueousphaseliquidinavariablysaturatedsandmedium.JournalofContaminantHy2drology,1997,25:249270[9]Abriola,Pinder.AmultiphaseapproachtothemodelingofporousmediacontaminationbyorganicCompounds.1.Equationdevelopment.WaterResour.Res.,1985,21(1):1118[10]CorapciogluM.Y.,BaehrA.L.Acompositionalmultiphasemodelforgroundwatercontaminationbypetroleumproducts.1.Theoreticalconsiderations.WaterResour.Res.,1987,23(1):191200[11]Kim,Jeongkon.ModelingdissolutionandvolatilizationofLNAPLsourcesmigratingonthegroundwatertable.TEXASA&MUniversity,PhDdissertation,1998[12]Han,Wei.Fateandtransportofnonaqueousphaseliquidun2derfluctuatingwatertableconditions.KANSASSTATEUNI2VERSITY,PhDdissertation,1998[13]AbdulA.S.Migrationofpetroleumproductsthroughsandyhydrogeologicsystems.GroundWaterMonit.Rev.,1988,8(4):7381[14]MarinaPantazidou,NicholasSitar.Emplacementofnonaque2ousliquidsinthevadosezone.WaterResour.Res.,1993,29(3):705722[15]Schroth,Martin.H.,Istok,JonathanD.,Selker,JohnS.Three2phaseimmisciblefluidmovementinthevicinityoftex2turalinterfaces.JournalofContaminantHydrology,1998,32:123[16]VanGeelP.J.,SykesJ.F.Laboratoryandmodelsimula2tionofaLNAPLspillinavariably2saturatedsand.1.Labora2toryexperimentandimageanalysistechniques.JournalofContaminantHydrology,1994,17:125[17]ParkerJ.C.,LenhardR.J.,KuppusamyT.Aparametricmodelforconstitutivepropertiesgoverningmultiphaseflowinporousmedia.WaterResour.Res.,1987,23(4):618624[18]Kechavarzi,C.,Soga,K.,Wiart,P.Multispectra