Method for eliminating heavy metals from a photographic effluent

Details Method for eliminating heavy metals from a photographic effluent Method for eliminating heavy metals from a photographic effluent

1997-09-24

1999-08-31

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

C02F 128

Patent

active

059450037

ABSTRACT:
The present invention concerns a method for the depollution of photographic effluents. The method of the invention comprises the step of forming in situ in the effluent an adsorbent of the hydrotalcite type. This method is useful for the elimination of silver and iron in photographic effluents.

REFERENCES:
patent: 4744825 (1988-05-01), Chen et al.
patent: 4752397 (1988-06-01), Sood
patent: 5360547 (1994-11-01), Cockett et al.

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