Process for dewatering a proteinaceous, aqueous sludge and for r

Details Process for dewatering a proteinaceous, aqueous sludge and for r Process for dewatering a proteinaceous, aqueous sludge and for r

1974-09-25

1976-02-03

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 52, 210 56, 260112R, 260112B, C02B 120

Patent

active

039363759

ABSTRACT:
A proteinaceous aqueous sludge, previously precipitated with a precipitating agent, is mixed with calcium chloride, and treated with a base selected from the group consisting of alkali metal hydroxides and alkaline earth metal hydroxides to adjust the pH to a value in the range of 6.5-9.5. The mixture is then heated to a temperature in the range of 60.degree.-120.degree.C. to coagulate and agglomerate the sludge, which is then separated from the aqueous phase containing the precipitating agent.

REFERENCES:
patent: 2328361 (1943-08-01), Sanders
patent: 2744014 (1956-05-01), Greathouse et al.
patent: 3491080 (1970-01-01), Ehrensvard et al.
patent: 3681283 (1972-08-01), Yueh
patent: 3738933 (1973-06-01), Hollo et al.

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