Biological degradation of halogenated components in the unsatura

Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Destruction of hazardous or toxic waste

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210600, 210601, 4352521, 435822, C02F 300, C12N 100, C12N 120, B09B 300

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active

058405712

ABSTRACT:
A Process using anaerobic, aerobic, and cometabolizing bacteria to biodegrade halogenated organic compounds in an unsaturated zone lyng between the ground surface and the underlying water table is disclosed. The process includes contacting in situ an electron donor compound with dehalogenating bacteria indigenous in or added thereto in the unsaturated soil zone which is between the ground surface and underlying water table. Further the halogenated component compounds also react with the bacteria and electron donor; thus, stimulating biodegradation while cycling between aerobic and anaerobic as well as cometabolic environments during the process.

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Gary C. Barbee, Fate of Chlorinated Aliphatic Hydrocarbons in the Vadose Zone and Ground Water, Ground Water Monitoring Review, vol. 14, No. 1, pp. 129-140 XP000646733, 1994.
D.H. Kampbell and B.H. Wilson, Bioremediation of Chlorinated Solvents in the Vadose Zone, Biomediation of Chlorinated and PAH Compounds, pp. 255-258, Nov. 7, 1995.
Robertson, "Chemical . . . Sit . . . DCE", Env. Tox. & Chem 13(2) 1994 pp. 183-191, see abst. only.

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