Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1989-06-06
1991-12-24
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041822, 2041801, C25C 122
Patent
active
050749862
ABSTRACT:
A method for removing contaminant material from a soil site in which one or more porous source electrodes and one or more porous sink electrodes are positioned within the soil site and voltage gradients are established among the electrodes. A purging liquid is supplied to the source electrodes so as to flow therefrom into the soil site, the voltage gradients causing the purging liquid to move by electroosmosis through the soil site toward the sink electrodes. The purging liquid displaces the contaminant material so as to cause the contaminant material to be moved from the soil site into the sink electrodes from which they can be removed, as by a pumping or siphoning action.
REFERENCES:
patent: 3417823 (1968-12-01), Faris
patent: 4305800 (1981-12-01), Christenson
patent: 4367132 (1983-01-01), Bell et al.
patent: 4382341 (1983-05-01), Bell et al.
patent: 4479857 (1984-10-01), Barton, Jr.
Mitchell, Potential Uses of Electrokinetics for Hazardous Waste Site Remediation, presented at Workshop on Electro-Kinetic Treatment and its Application in Environmental-Geotechnical Engineering for Hazardous Waste Site Remediation (University of Washington, Seattle, Wash.), Aug. 4-5, 1986.
Greg A. Putnam, Thesis: Determination of pH Gradients in the Electrochemical Processing of Kaolinite, Dec. 1988, pp. 35-78 and 101-110.
Renaud, Patricia C. and Ronald F. Probstein, "Electroosmotic Control of Hazardous Wastes", PCH PhysicoChemical Hydrodynamics, vol. 9, No. 1/2, pp. 345-360, 1987.
Hammett, R., "A Study of the Processes Involved in the Electro-Reclamation of Contaminated Soils", (Thesis) University of Manchester, England, Oct. 1980.
"Workshop on Electro-Kinetic Treatment and Its Application in Environmental-Geotechnical Engineering for Hazardous Waste Site Remediation", Unpublished Proceedings, hosted by the University of Washington Dept. of Civil Engineering, Aug. 4-5, 1986.
Probstein Ronald F.
Renaud Patricia C.
Shapiro Andrew P.
Massachusetts Institute of Technology
Niebling John
O'Connell Robert F.
Phasge Arun S,.
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