Suitability of electro-remediation for clean-up of PAH-contaminated clays

The removal of PAH from soils, especially clayey soils, is a difficult task. Electro-osmosis is a technique which has been applied for the mobilization and cleanup of contaminants in clayey soils. The present focus is on the laboratory study of electroosmosis in two clayey materials: Wyoming bentonite and a contaminated peaty clay soil from Olst, the Netherlands. The results were quite disparate, but Olst soil experiment achieved a quite promising coefficient of electro-osmotic conductivity and a good base for field applications.