Electrokinetic removal of charged contaminant species from soil and other media using moderately conductive adsorptive materials
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United States of America Patent
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Apr 24, 2001
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Jun 24, 1999
filing date -
Jun 24, 1999
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Abstract
Method for collecting and concentrating charged species, specifically, contaminant species in a medium, preferably soil. The method utilizes electrokinesis to drive contaminant species into and through a bed adjacent to a drive electrode. The bed comprises a moderately electrically conductive adsorbent material which is porous and is infused with water or other solvent capable of conducting electrical current. The bed material, preferably activated carbon, is easily removed and disposed of. Preferably, where activated carbon is used, after contaminant species are collected and concentrated, the mixture of activated carbon and contaminant species is removed and burned to form a stable and easily disposable waste product.
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