Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1990-07-12
1991-10-08
Corbin, David H.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
405 52, 405258, E02D 3102, C02F 100
Patent
active
050549618
ABSTRACT:
The present invention relates to the method of `in situ` collection and treatment of floating, sinking and dissolved contaminants in a soil environment which involves forming an in-ground diversionary water barrier as a boom around at least a portion of the waste site on the down-gradient side of the in-ground water flow, as a bottomless tank that through water removal creates an in-flow or in-gradient condition causing water to flow into and up in the tank area, or to control the downward flow and eventual discharge but control the detection time within the bottomless tank. The barrier involves forming an in-ground diversionary temporary water barrier as a boom around at least a portion of the waste site on the downstream side of in-ground water flow. The barrier preferably extends at least as deep as the in-ground contaminated water flow into the aquifer. The method utilizes collection and treatment members in the form of tubular pipes extending vertically or inclinedly adjacent the said barrier to form one or more collection reservoirs for the collection and treatment of contaminants in place or when removed to the surface such as by pumping. The method can be practiced over relatively short or long periods of time as long as the contaminants flow into the ground water. The said barrier maintains and controls both surface and in-ground water flow into and through the contaminated site to facilitate virtually complete removal and/or elimination of pollutants from the waste site area. The method may also be used to treat the contaminants in place in relatively deep reservoirs formed within the waste site or their removal to above-ground processing and elimination operations. The method permits anaerobic and aerobic treatment of the contaminants in-ground reservoirs or sumps where the contaminants are collected and treated, such as by bacterial growth, by most efficient and economical forms of treatment at and within the waste site.
REFERENCES:
patent: 4358221 (1982-11-01), Wickberg
patent: 4401569 (1983-08-01), Jhaveri et al.
patent: 4543016 (1985-09-01), Tallard
patent: 4664560 (1987-05-01), Cortlever
patent: 4741644 (1988-05-01), Cavalli et al.
patent: 4765775 (1988-08-01), Kroger
patent: 4863312 (1989-09-01), Cavalli
Corbin David H.
Ocean Todd Enterprises Inc.
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