Electrochemical leaching of soil

Electrolysis: processes – compositions used therein – and methods – Electrolytic material treatment – Organic

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205746, 205747, 205748, 205749, 205770, 204263, 204264, 204275, 204276, B01D 6144

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active

058765905

ABSTRACT:
An electrochemical leaching system for cleaning contaminated fines. The system has a waste vessel for receiving and holding a contaminated fines and lixiviant mixture. On a side of the waste vessel is an anolyte vessel holding an anolyte fluid. An anolyte barrier separates the waste and anolyte vessels. On an opposite side of the waste vessel is a catholyte vessel holding a catholyte fluid. A catholyte barrier separates the waste and catholyte vessels. A potential between an anode in the anolyte vessel and a cathode in the catholyte vessel ionizes the fines contaminants into anionic and cationic contaminants in the lixiviant. The anolyte and catholyte barriers allow the anionic and cationic contaminants, respectively, to flow from the lixiviant and into the anolyte and catholyte fluids in their respective vessels without allowing bulk transfer therebetween. The anionic and cationic contaminants are then removed from the anolyte and catholyte fluids. A cleaner lixiviant and fines exits the system.

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Miscellaneous Resintech.TM. Inc. Technical Literature, publishing date unknown.
Turner, A.D. and Neville "Electrical Membrane Processes in Effluent Treatment", AEA Technology publication, 1993.
Turner, A.D. and Neville, "Direct Membrane Cleaning Technology", AEA Technology publication.

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