Contaminant　transport　is　a　common　process　for　a　waste　disposal　site,　which　is　a　practical　concern　in　geo-environmental　field.　It　is　essential　to　study　the　contaminant　transport　behavior　in　impermeable　clay　liner.　Considering　the　anisotropy　of　a　clay　barrier　in　permeability,　a　three-dimensional　model　coupled　mechanical　consolidation　and　contaminant　transport　is　developed　for　simulation　of　contaminant　transport　through　a　deforming　porous　medium.　This　is　based　on　the　combination　of　Biot＇s　theory　and　the　theory　of　contaminant　transport.　Meanwhile,　porosity　is　viewed　as　a　coupling　parameter.　The　influence　of　soil　consolidation　deformation　and　permeability　anisotropy　on　contaminant　transport　can　thus　be　determined　reasonably.　Transport　equations　are　solved　by　using　the　finite-element　software　COMSOL　Multiphysics.　A　parametric　study　has　moreover　been　conducted　to　understand　the　influence　of　contaminant　source　types　and　adsorption　modes,　including　constant　contaminated　source,　attenuation　contaminated　source,　linear　adsorption,　Freundlich　adsorption,　Langmuir　adsorption.　The　simulation　results　indicate　that　the　permeability　anisotropy　has　a　negligible　effect　on　contaminant　transport,　adsorption　modes　have　a　significant　impact　on　transport　depth　and　range,　and　the　concentration　distribution　of　contaminant　with　different　contaminated　source　types　have　showed　a　marked　difference.　©　2016　DEStech　Publications,　Inc.