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Title: Anaerobic microbial dissolution of lead and production of organic acids

Abstract

The present invention relates to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rate of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 .mu.moles of lead as lead oxide was 0.042 .mu.moles ml.sup.-1 hr.sup.-1. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids.

Inventors:
 [1];  [2];  [3];  [4]
  1. (Middle Island, NY)
  2. (Wading River, NY)
  3. (Coimbatore Tamil Nadu, IN)
  4. (Cambridge, MD)
Issue Date:
Research Org.:
ASSOC UNIVERSITIES INC
OSTI Identifier:
866652
Patent Number(s):
4758345
Assignee:
United States of America as represented by United States (Washington, DC) BNL
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
anaerobic; microbial; dissolution; lead; production; organic; acids; relates; bacterial; culture; clostridium; sp; atcc; 53464; solubilizes; oxide; conditions; coal; industrial; wastes; method; removing; dumped; environment; rate; logarithmic; growth; bacteria; 40; ml; medium; containing; 32; moles; 042; -1; isolate; due; metabolites; acidity; major; acetic; butyric; lactic; acid; recovery; strategic; metals; ores; commercial; purposes; process; yields; quantities; complexed; stable; form; stable form; industrial waste; lactic acid; culture medium; anaerobic bacteria; anaerobic conditions; organic acids; lead oxide; organic acid; medium containing; anaerobic microbial; clostridium sp; bacterial culture; aerobic conditions; /210/435/

Citation Formats

Francis, Arokiasamy J., Dodge, Cleveland, Chendrayan, Krishnachetty, and Quinby, Helen L. Anaerobic microbial dissolution of lead and production of organic acids. United States: N. p., 1988. Web.
Francis, Arokiasamy J., Dodge, Cleveland, Chendrayan, Krishnachetty, & Quinby, Helen L. Anaerobic microbial dissolution of lead and production of organic acids. United States.
Francis, Arokiasamy J., Dodge, Cleveland, Chendrayan, Krishnachetty, and Quinby, Helen L. Fri . "Anaerobic microbial dissolution of lead and production of organic acids". United States. https://www.osti.gov/servlets/purl/866652.
@article{osti_866652,
title = {Anaerobic microbial dissolution of lead and production of organic acids},
author = {Francis, Arokiasamy J. and Dodge, Cleveland and Chendrayan, Krishnachetty and Quinby, Helen L.},
abstractNote = {The present invention relates to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rate of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 .mu.moles of lead as lead oxide was 0.042 .mu.moles ml.sup.-1 hr.sup.-1. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

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