Microbial dehalogenation using methanosarcina

Details Microbial dehalogenation using methanosarcina Microbial dehalogenation using methanosarcina

1992-09-04

1994-08-30

Robinson, Douglas W.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing hydrocarbon

435167, 435170, 4352625, 210601, 210605, 210610, C12P 502, C12P 104, C02F 330

Patent

active

053427696

ABSTRACT:
A method for bioremediation of hazardous wastes is disclosed. The method can be used for anaerobic treatment of a liquid or slurry hazardous waste stream (e.g., industrial wastewater or sludge) or for treatment of contaminated groundwater. Removal of halogenated (e.g., chlorinated) hydrocarbons, such as tetrachloroethylene, trichloroethylene, 1,1,1-trichloroethane and similar xenobiotics is possible. The method involves biotransformation of (dehalogenation) halogenated hydrocarbons by means of natural methanogenic bacteria, Methanosarcina barkeri strain 227 and/or Methanosarcina vacuolata. These methanogens can accomplish cometabolism of chlorinated hydrocarbons during metabolism of a primary substrate such as hydrogen-carbon dioxide, methanol, methylamine, dimethylamine, trimethylamine and acetate. Reductive dechlorination, energy conservation and control of air pollution are accomplished.

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Fathepure et al., Appl. Environ. Microbiology 54 (12) 1988, pp. 2976-2980.

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