Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1992-12-17
1994-02-15
Corbin, David H.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
210610, 210747, 405258, E02D 3100, B09B 300
Patent
active
052861406
ABSTRACT:
Bioremediation systems and methods are disclosed in which petroleum contaminated soil (PCS) are treated and recycled to below acceptable contaminant levels. The system comprises a treatment cell at a location removed from the original site of the contaminated soil and having a capacity to receive and treat PCS from numerous sources concurrently. The system includes a treatment water infiltration system and an air circulation system which, in combination, supply the required oxygen and nutrients to enhance the growth of naturally occurring, hydrocarbon-consuming microbial organisms as well as optimizing the hydrocarbon consuming activity of those organisms. The pH, system temperature, and growth inhibiting toxin concentration are all controlled in the systems and methods of the present invention to thereby further enhance microbial growth and hydrocarbon consumption.
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patent: 4850745 (1989-07-01), Hater et al.
patent: 4919570 (1990-04-01), Payne
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R. R. Dupont, "Application of Bioremediation Fundamentals to the Design and Evaluation of In-Situ Soil Bioventing Systems", Jun. 21-26, 1992, pp. 1-15.
Texas Research Institute, "Enhancing The Microbial Degradation of Underground Gasoline By Increasing Available Oxygen", Feb., 1982, pp. 1-25.
Roy F. Weston Inc., "Remedial Technologies For Leaking Underground Storage Tanks", 1988, pp. 37-52.
Section 6, "Bioreclamation", pp. 1-39 (author, date, source unknown).
Corbin David H.
Petro Environmental Technologies, Inc.
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