Treatment of photographic processing effluents using photosynthe

Details Treatment of photographic processing effluents using photosynthe Treatment of photographic processing effluents using photosynthe

1977-03-10

1979-01-23

Shapiro, Lionel M.

Textiles: fiber preparation

75101R, 210 2, 75118P, C02C 510, C22B 1100

Patent

active

041359763

ABSTRACT:
A process of treating a waste photographic processing solution containing reductive sulfur compounds, in particular, a waste fix solution for silver halide photographic materials, by applying thereto photosynthetic sulfur bacteria under anaerobic conditions with the irradiation of light. When the waste solution contains silver, the decontamination of the waste solution and the recovery of silver are performed simultaneously by the process.

REFERENCES:
patent: 3305353 (1967-02-01), Duncan et al.
patent: 3455679 (1969-07-01), Mayling
patent: 3537986 (1970-11-01), Watanabe et al.
patent: 3941691 (1976-03-01), Romanenko et al.
patent: 4033763 (1977-07-01), Markels

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