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Title: Method of degrading pollutants in soil

Disclosed are a method and system for enhancing the motility of microorganisms. This is accomplished by placing an effective amount of chlorinated hydrocarbons, preferably chlorinated alkenes, and most preferably trichloroethylene in spaced relation to the microbes so that the surprisingly strong, monomodal, chemotactic response of the chlorinated hydrocarbon on subsurface microbes can draw the microbes away from or towards and into a substance, as desired. In remediation of groundwater pollution, for example, TCE can be injected into the plume to increase the population of microbes at the plume whereby the plume can be more quickly degraded. A TCE-degrading microbe, such as Welchia alkenophilia, can be used to degrade the TCE following the degradation of the original pollutant. 5 figures.
Inventors:
;
Issue Date:
OSTI Identifier:
7173190
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-111924
Patent Number(s):
US 5326703; A
Application Number:
PPN: US 7-896762
Contract Number:
AC09-76SR00001
Resource Relation:
Patent File Date: 10 Jun 1992
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; CHLORINATED ALIPHATIC HYDROCARBONS; BIODEGRADATION; GROUND WATER; DECONTAMINATION; MICROORGANISMS; GROWTH; SOILS; REMEDIAL ACTION; TECHNOLOGY ASSESSMENT; CHEMICAL REACTIONS; CLEANING; DECOMPOSITION; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROGEN COMPOUNDS; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; OXYGEN COMPOUNDS; WATER; 540220* - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-)