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Title: Method of degrading pollutants in soil

A method and system for enhancing the motility of microorganisms 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.
Inventors:
 [1];  [2]
  1. (Augusta, GA)
  2. (Irmo, SC)
Issue Date:
OSTI Identifier:
869383
Assignee:
United States of America as represented by United States (Washington, DC) SRS
Patent Number(s):
US 5326703
Contract Number:
AC09-76SR00001
Research Org:
E I DUPONT DE NEMOURS & CO INC
Country of Publication:
United States
Language:
English
Subject:
method; degrading; pollutants; soil; enhancing; motility; microorganisms; placing; effective; amount; chlorinated; hydrocarbons; preferably; alkenes; trichloroethylene; spaced; relation; microbes; surprisingly; strong; monomodal; chemotactic; response; hydrocarbon; subsurface; draw; towards; substance; desired; remediation; groundwater; pollution; example; tce; injected; plume; increase; population; whereby; quickly; degraded; tce-degrading; microbe; welchia; alkenophilia; degrade; following; degradation; original; pollutant; chlorinated hydrocarbons; spaced relation; effective amount; chlorinated hydrocarbon; degrading pollutants; /435/