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Title: Biochemical solubilization of toxic salts from residual geothermal brines and waste waters

A method of solubilizing metal salts such as metal sulfides in a geothermal sludge using mutant Thiobacilli selected for their ability to metabolize metal salts at high temperature is disclosed, The method includes the introduction of mutated Thiobacillus ferrooxidans and Thiobacillus thiooxidans to a geothermal sludge or brine. The microorganisms catalyze the solubilization of metal salts, For instance, in the case of metal sulfides, the microorganisms catalyze the solubilization to form soluble metal sulfates.
Inventors:
 [1];  [2]
  1. (East Moriches, NY)
  2. (Rocky Point, NY)
Issue Date:
OSTI Identifier:
869616
Assignee:
Associated Universities, Inc. (Washington, DC) BNL
Patent Number(s):
US 5366891
Application Number:
08/115,760
Contract Number:
AC02-76CH00016
Research Org:
ASSOC UNIVERSITIES INC
Country of Publication:
United States
Language:
English
Subject:
biochemical; solubilization; toxic; salts; residual; geothermal; brines; waste; waters; method; solubilizing; metal; sulfides; sludge; mutant; thiobacilli; selected; ability; metabolize; temperature; disclosed; introduction; mutated; thiobacillus; ferrooxidans; thiooxidans; brine; microorganisms; catalyze; instance; form; soluble; sulfates; metal sulfides; metal sulfate; metal salts; waste water; metal sulfide; metal salt; soluble metal; geothermal brine; waste waters; metal sulfates; geothermal brines; /435/75/423/