Abstract

Abstract A One-Dimensional Model Is Developed For Simulating The Electrokinetic Treatment Of Saturated Porous Media Contaminated With An Ionic Salt. Simulations Of Simple, Unenhanced Electrokinetic Treatment For The Removal Of A Nonamphoteric Salt Such As Cadmium Sulfate Exhibit A Severe Drop-Off In Electric Current And In Remediation Rate After About 50–60% Of The Cation Has Been Removed. Simulation Of Electrokinetic Treatment In Which The Oh− Generated In The Cathode Compartment Is Partially Neutralized By The Addition Of Acid Show Rapid And Complete Removal Of The Cation. Partial Neutralization Of H+ In The Anode Compartment By Addition Of Base Results In Immobilization Of The Toxic Metal As The Solid Hydroxide, Although This Should Be A Useful Technique For The Removal Of Arsenate And Selenate.

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