Simultion of soil washing with surfactants

摘要

A mathematical model of soil washing that incorporates the surfactant enhanced mobilization and solubilization of organic compounds was implemented using a finite difference compositional reservoir simulator. The primary objexctive of the model was identification of the contributions of the various mechanisms-water displacement, surfactant mobilization and dissolution-on the removal of organic contaminants from soil. Mobilization of the organic phase was described by a reduction in the residual oil saturation caused by decreased interfacial tension.