Compost decontamination of soil contaminated with PCB using aero

Details Compost decontamination of soil contaminated with PCB using aero Compost decontamination of soil contaminated with PCB using aero

1998-05-18

2000-07-04

Naff, David M.

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Destruction of hazardous or toxic waste

71 15, 71 21, 71 25, 71903, 435170, 435264, 435267, 435822, 588207, B09B 300, C07G 1700, C12N 100, D06M 1600

Patent

active

060837381

ABSTRACT:
The present invention provides a process of decontaminating, by composting under specific conditions, soil and/or sediments containing toxic contaminants of PCB. The process is carried out by converting the contaminants into harmless materials. The process includes the step of affecting a solid compost mixture during composting with a redox potential below negative 200 mV (millivolts). Further, the process includes several steps which are repeated until complete degradation is achieved. Other processes for degrading compounds such as chlordane, dieldrin, toxaphene, aldrin, endrin, and heptachlorepoxide as well as polychlorinated benzenes are also disclosed.

REFERENCES:
patent: 5593888 (1997-01-01), Gray et al.
patent: 5660612 (1997-08-01), Bernier et al.
patent: 5711020 (1998-01-01), Wolfe et al.
patent: 5824541 (1998-10-01), Horn et al.
"Principles of Composting" Guele; The Biocycle to the Art in Science of Composting; Journal of Waste Recycling, the I J Press Inc; 1991, p. 14-271 "Anaerobic DDT Biodegration".
Environment of Application of Surfactants and the Low Oxidation Potential Affhel Experimental Microbiology, Des. 1931, You et al p. 1.35; Anerobic DDT Degration of Contaminated Soil by Mixed Consortia and Enhancement by Surfactant in Shurg Reactor, You et al. Web Environmental Fedouton, Oct. 1994 p. 635-645.

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