Liquid purification or separation – Processes – Treatment by living organism
Patent
1998-07-09
1999-12-14
Simmons, David A.
Liquid purification or separation
Processes
Treatment by living organism
210747, 210708, 4352625, C02F 300
Patent
active
060012528
ABSTRACT:
A method for in situ anaerobic dehalogenation of a halogenated organic compound in a groundwater plume reduces or prevents indigenous aerobic microorganisms from competing for a supplied electron donor with an anaerobic microorganism that reductively dehalogenates the organic compound when an electron donor is available. The method includes the step of injecting in situ into a groundwater-saturated matrix within or upgradient of a source of the organic compound a deoxygenated aqueous solution that comprises an electron donor to facilitate reductive dehalogenation of the organic compound.
REFERENCES:
patent: 4401569 (1983-08-01), Jaheveri et al.
patent: 5200343 (1993-04-01), Cole et al.
patent: 5342769 (1994-08-01), Hunter et al.
patent: 5587317 (1996-12-01), Odom
patent: 5753122 (1998-05-01), Taylor et al.
patent: 5830746 (1998-11-01), Copeland et al.
patent: 5833855 (1998-11-01), Saunders
patent: 5840191 (1998-11-01), Eccles
patent: 5910245 (1999-06-01), Bernhardt et al.
Gibson, et al. "Extrapolation of Biodegradation Results to Groundwater Aquifers: Reductive Dehalogenation of Aromatic Compounds" Applied and Environmental Microbiology 52:4, 681-688 (1986).
Chu, et al. "Treatment of Tetrachloroethylene With Anaerobic Attached Film Process", Journal of Environmental Engineering 120:1, 58-71 (1994).
Bagley et al. "Tetrachloroethene Transformation to Trichloroethene and cis-1,2-Dichloroethene by Sulfate-Reducing Enrichment Cultures", Applied and Environmental Microbiology 56:8, 2511-2516 (1990).
Chen, et al. "Transformations of 1,1,2,2-Tetrachloroethane under Methanogenic Conditions", Environmental Science & Technology30 :2, 542-547 (1996).
Universitty of Groningen Centre for Ecological and Evolutionary Studies (CEES) Annual Report (1996), excerpt p. 23-28 of 46, re: Microbial Ecology.
van de Pas, B. "Bioenergetics of anaerobic bacteria that use chlorinated compounds as terminal electron acceptor growth", Wageningen Agricultural University, Department of Biomolecular Services (1997) (Web page).
Ellis, L. "Tetrachloroethene Pathway Map (Anaerobic)", University of Minnesota (1998) (Web page).
U.S. Dept. of Defense, Brooks Air Force Base, Environmental, Safety and Occupational Health, Technical Planning Integrated Product Team, "Need No. 2008" (1997) (Web page).
Koch Stacey A
Rice John M
Prince Fred
RMT, Inc.
Simmons David A.
LandOfFree
In situ anaerobic dehalogenation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with In situ anaerobic dehalogenation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In situ anaerobic dehalogenation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-859832