Method for treating used or exhausted photographic fixing soluti

Details Method for treating used or exhausted photographic fixing soluti Method for treating used or exhausted photographic fixing soluti

1976-10-12

1978-02-14

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, 204130, C25B 100

Patent

active

040737055

ABSTRACT:
Removal of silver and reduction of COD value in used or exhausted photographic fixing solution are effectively conducted by electrolysis of reversing repeatedly polarity of positive and negative electrodes.

REFERENCES:
patent: 1534709 (1925-04-01), Holt
patent: 2451341 (1948-10-01), Jernstedt
patent: 2615839 (1952-10-01), Willier

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