Liquid purification or separation – Processes – Treatment by living organism
Patent
1991-07-08
1992-12-08
Wyse, Thomas
Liquid purification or separation
Processes
Treatment by living organism
210904, C02F 334
Patent
active
051695324
ABSTRACT:
Biological treatment process removes free and metal complexed cyanides, and thiocyanate through oxidations. Even high concentrations of these pollutants are workable. Toxic heavy metals are absorbed and adsorbed within a biofilm. This process has been adapted to and performs well at high cyanide concentrations (e.g., even above about 100 mg/L and high pH (e.g., even higher than about 9.5). Mixed cultures of adapted strains of Pseudomonas are utilized to perform biological oxidation within the system. End products of oxidation include carbonates, sulfates, and nitrates. The pH is neutralized by metabolism of, or by, intermediate reaction products. The biological processes can be utilized as a pretreatment or post-treatment process in conjunction with chemical processes.
REFERENCES:
patent: 3617567 (1971-11-01), Mathre
patent: 3660278 (1972-05-01), Mimura et al.
patent: 3756947 (1973-09-01), Fujii et al.
patent: 3816306 (1974-06-01), Roy
patent: 3940332 (1976-02-01), Kato et al.
patent: 4188289 (1980-02-01), Besik
patent: 4199444 (1980-04-01), Blair et al.
patent: 4440644 (1984-04-01), Mudder et al.
patent: 4461834 (1984-07-01), Mudder et al.
Holmes et al. (1977) International Journal of Systematic Bacteriology 27:133-146.
Homestake Mining Company
Wyse Thomas
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