Process for treating aqueous latex paint waste

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

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210737, 210770, 210901, C02F 152

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active

043127592

ABSTRACT:
A process for producing leach-resistant consolidate from the slack sludge precipitated from the flocculating of dilute aqueous latex paint waste is shown. It comprises: rapidly heating said slack sludge with agitation to a temperature which at least approaches the boiling point of the water present in said sludge; settling the resulting heated mixture into a consolidate fraction and a serum fraction; and separating said fractions. Such consolidate can be used for landfill, structural units, or dispersed as a component of a paint.

REFERENCES:
patent: 2978344 (1961-04-01), Parker et al.
patent: 3753901 (1973-08-01), Taubman et al.
patent: 3929586 (1975-12-01), Slikkers, Jr.
patent: 4088577 (1978-05-01), Muller
patent: 4096061 (1978-06-01), Brennan
Pinsky, J. L. et al., "Characterization and Disposal of Paint Sludge"; 32nd Ind. Waste Conference, Purdue University 1977; pp. 428-437.

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