Liquid purification or separation – Processes – Treatment by living organism
Patent
1993-02-09
1996-01-30
Wyse, Thomas S.
Liquid purification or separation
Processes
Treatment by living organism
210611, 210747, 210910, 210911, 435262, C02F 334
Patent
active
054878349
ABSTRACT:
Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides.
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patent: 3979283 (1986-09-01), Prudom
patent: 4664805 (1987-05-01), Focht
patent: 4725357 (1988-02-01), Downing et al.
patent: 5037551 (1991-08-01), Barkley et al.
patent: 5196339 (1993-03-01), Hanson et al.
patent: 5246584 (1993-09-01), Donaldson et al.
Carman Margaret L.
Jackson Kenneth J.
Knapp Richard B.
Knezovich John P.
Shah Nilesh N.
Sartorio Henry P.
The Regents of the University of California
Wyse Thomas S.
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