Method and system for recycling washing liquids and the heat con

Details Method and system for recycling washing liquids and the heat con Method and system for recycling washing liquids and the heat con

1981-12-08

1984-05-29

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 13, 134 60, 134 90, 134107, 134108, 134109, 134111, B08B 704

Patent

active

044512988

ABSTRACT:
A system for recovery and recycling of a washing liquid and heat contained in the washings discharged from a metal surface treatment process comprises a hot water washing tank with an associated cushion tank, a cold water washing tank with an associated cushion tank, a heat exchanger, an ion exchanger and a filter. The second-mentioned cushion tank is in communication with the hot water washing tank through the heat exchanger, while the first-mentioned cushion tank is in communication with the cold water washing tank through the filter, the heat exchanger and the ion exchanger.

REFERENCES:
patent: 2234593 (1941-03-01), Ferm et al.
patent: 2949119 (1960-08-01), Smith
patent: 3100727 (1963-08-01), Labergere
patent: 4156621 (1979-05-01), Andrews et al.
patent: 4333485 (1982-06-01), Karlsson et al.

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