Liquid purification or separation – Processes – Treatment by living organism
Patent
1987-04-16
1988-07-19
Wyse, Tom
Liquid purification or separation
Processes
Treatment by living organism
210912, 435139, 435140, 435141, 435262, 435842, C02F 334, C12P 752, C12P 754, C12P 756
Patent
active
047583452
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.
REFERENCES:
patent: 3266889 (1966-08-01), Duncan et al.
patent: 3293597 (1975-12-01), Chakrabarty et al.
patent: 4467034 (1984-08-01), Voelskow et al.
patent: 4468461 (1984-08-01), Bopp
patent: 4510243 (1985-04-01), Haga et al.
patent: 4519912 (1985-05-01), Kauffman et al.
Francis et al., "Anaerobic Microbial Dissolution of Metals", BNL Report 36447, presented at the Workshop on Biotechnology for the Mining, Metal-Refining and Fossil Fuel Processing Industries, Rensselaer Polytechnic Institute, Troy, N.Y., May 28-30, 1985.
Francis, "Anaerobic Microbial Dissolution of Toxic Metals in Subsurface Environments", BNL Report 36571, presented at the DOE International Series of Interactive Seminars (ISIS) on Anaerobic Biogeochemical Processes in Subsurface Environments, Penn State University, May 13-15, 1985.
Francis, "Microbial Transformation of Organic Compounds, Toxic Metals, and Radionuclides in Subsurface Environments", BNL Report 37206, presented at the Workshop on the Effects of Natural Organic Compounds and of Microorganisms on Radionuclide Transport, Paris, France, Jun. 11-12, 1985.
Francis, "Anaerobic Microbial Transformation of Toxic Metals", BNL Report 37250, presented at the Symposium on Transport of Chemicals in the Ground Water and Porous Media, American Institute of Chemical Engineers, Chicago, Ill., Nov., 1985.
Chendrayan Krishnachetty
Dodge Cleveland
Francis Arokiasamy J.
Quinby Helen L.
Bogosian Margaret C.
Hightower Judson R.
The United States of America as represented by the United States
Weinberger James W.
Wyse Tom
LandOfFree
Anaerobic microbial dissolution of lead and production of organi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anaerobic microbial dissolution of lead and production of organi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anaerobic microbial dissolution of lead and production of organi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-595792