Apparatus for processing photographic film and recovering solid

Details Apparatus for processing photographic film and recovering solid Apparatus for processing photographic film and recovering solid

1974-11-06

1976-11-30

Braun, Fred L.

Concentrating evaporators

Preliminary heaters and heat economizers

159 7, 159DIG1, 159DIG6, G03D 302

Patent

active

039952983

ABSTRACT:
An apparatus of small dimensions may be used to operate the water contained in the processing baths of automatic processing machines. The solid residue may be collected and sent to silver recovery plants, whereas the evaporated water serves to heat the drying station of the processing machine whereinafter it may be fed to the washing station. In so doing, a considerable amount of wash water is recovered and no chemical compounds are discharged to the sewer through which pollution of surface waters is practically eliminated.

REFERENCES:
patent: 2873799 (1959-02-01), Earley et al.
patent: 3241981 (1966-03-01), Strashun et al.
patent: 3269920 (1966-08-01), Merrill
patent: 3533829 (1970-10-01), Quanquin
patent: 3604331 (1971-09-01), Carberry et al.
patent: 3653424 (1972-04-01), Carlsson
patent: 3733994 (1973-05-01), Armstrong et al.

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