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Title: Methods for microbial filtration of fluids

Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides.
Inventors:
 [1];  [2];  [3];  [4];  [5];  [5]
  1. (San Ramon, CA)
  2. (San Leandro, CA)
  3. (Danville, CA)
  4. (Stockton, CA)
  5. (Livermore, CA)
Issue Date:
OSTI Identifier:
870273
Assignee:
Regents of University of California (Oakland, CA) LLNL
Patent Number(s):
US 5487834
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
methods; microbial; filtration; fluids; novel; purifying; contaminated; subsurface; groundwater; disclosed; method; involves; contacting; methanotrophic; heterotrophic; microorganisms; produce; contaminant-degrading; enzymes; derived; surface; cultures; injected; ground; biofilter; contaminants; treated; organic; metallic; materials; radionuclides; metallic materials; involves contacting; metallic material; novel method; subsurface groundwater; purifying contaminated; novel methods; contaminated subsurface; /210/435/