Liquid purification or separation – Processes – Treatment by living organism
Patent
1983-07-11
1985-07-23
Castel, Benoit
Liquid purification or separation
Processes
Treatment by living organism
210611, 210615, 210619, 210912, 210913, 423DIG17, 423 3, 423 23, 423 53, 423 62, 435180, 435264, 435874, C02F 304, C12N 1108, D06M 1600, C12R 138
Patent
active
045307636
ABSTRACT:
A method for treating waste fluids to remove selected chemicals such as minerals and metals wherein a bacterial culture that will attach to a selected chemical is transferred to a nutrient medium for a time period sufficient to produce satisfactory bacterial cell growth. The bacterial cells are then attached to a porous fiber webbing supported in a suitable container and the nutrient medium is then withdrawn from the container and waste fluid introduced into the container for a period of time sufficient to attach the chemical to the bacterial cells. The waste fluid is then removed from the container and the chemical separated from the fiber webbing.
REFERENCES:
patent: 4165281 (1979-08-01), Kuriyama et al.
patent: 4269719 (1981-05-01), Yamamoto
patent: 4292408 (1981-09-01), Zimmermann et al.
patent: 4320093 (1982-03-01), Volesky et al.
patent: 4416993 (1983-11-01), McKeown
Hollo J. et al.; "Denitrification and Removal of Heavy Metals from Waste Water by Immobilized Microorganisms" found in Immobilized Microbial Cells, American Chemical Society, 1979 (pp. 73-86).
Tuovinen O. H. et al., "Use of MicroOrganisms for the Recovery of Metals"; Int. Metallurgical Reviews, 1974 Review 179 (pp. 21-31).
Clyde Robert A.
Whipple Andrew
Castel Benoit
Hague D. I.
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