Validity of Electro-Osmosis for Soil Decontamination

by Lutful I. Khan, Lehigh Univ, United States,
Sibel Pamukcu, Lehigh Univ, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering


The subject matter of this paper is electro-osmosis in fine grained soils. A simple instrument has been developed to simulate this phenomena in the laboratory. A series of experiments were conducted under controlled conditions with kaolinite clay to identify the critical parameters of electro-osmosis. Influences of voltage and current reversal were studies. The cations Na+ and Li+ were compared as electro-osmotic flow enhancing ions. Li+ was found more effective compared to Na+. Optimum voltage for distilled water flow was determined.

Subject Headings: Soil pollution | Osmosis | Clays | Fine-grained soils | Alloys | Sodium | Soil treatment | Soil tests

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