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

Abstract

The present invention relates to a method of solubilizing lead, in the form of lead oxide, found in industrial wastes, before these wastes are dumped into the environment. The lead is solubilized by dissolving the lead oxide in the wastes through contact with an anaerobic bacterial culture containing the bacterium ATCC No. 53464. The solubilized lead can then be removed from the wastes by chemical separation. It could also be removed by extending the contact period with the bacterial culture. As the culture grows, the solubilized lead is removed from the wastes by bioaccumulation by the microorganism or by immobilization by a polymer-like material produced by the microorganism. At this point, the lead is then removed from the wastes when the waste material is separated from the bacterial culture. If desired, the bacterial culture could be digested at this point to yield relatively pure lead for further industrial use.

Inventors:
; ;
Issue Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
6713847
Application Number:
ON: DE87007301
Assignee:
Dept. of Energy
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; LEAD; BIODEGRADATION; ORGANIC ACIDS; PRODUCTION; SURFACE WATERS; ACIDIFICATION; ANAEROBIC CONDITIONS; GROUND WATER; MICROORGANISMS; PH VALUE; CHEMICAL REACTIONS; DECOMPOSITION; ELEMENTS; HYDROGEN COMPOUNDS; METALS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; WATER; 520200* - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989)

Citation Formats

Francis, A J, Dodge, C, and Chendrayan, K. Anaerobic microbial dissolution of lead and production of organic acids. United States: N. p., 1986. Web.
Francis, A J, Dodge, C, & Chendrayan, K. Anaerobic microbial dissolution of lead and production of organic acids. United States.
Francis, A J, Dodge, C, and Chendrayan, K. Fri . "Anaerobic microbial dissolution of lead and production of organic acids". United States.
@article{osti_6713847,
title = {Anaerobic microbial dissolution of lead and production of organic acids},
author = {Francis, A J and Dodge, C and Chendrayan, K},
abstractNote = {The present invention relates to a method of solubilizing lead, in the form of lead oxide, found in industrial wastes, before these wastes are dumped into the environment. The lead is solubilized by dissolving the lead oxide in the wastes through contact with an anaerobic bacterial culture containing the bacterium ATCC No. 53464. The solubilized lead can then be removed from the wastes by chemical separation. It could also be removed by extending the contact period with the bacterial culture. As the culture grows, the solubilized lead is removed from the wastes by bioaccumulation by the microorganism or by immobilization by a polymer-like material produced by the microorganism. At this point, the lead is then removed from the wastes when the waste material is separated from the bacterial culture. If desired, the bacterial culture could be digested at this point to yield relatively pure lead for further industrial use.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {2}
}