Solidification of aqueous sludge

Details Solidification of aqueous sludge Solidification of aqueous sludge

1979-03-23

1980-10-21

Hart, Charles N.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

405263, 210751, 210753, C02C 300

Patent

active

042292956

ABSTRACT:
A process for treating aqueous sludge comprising a slurry of clay minerals and silica in water includes rapidly dispersing throughout the sludge at least one additive compound selected from the group consisting of mineral acids, acid salts of alkaline earth metals, alkaline earth metal oxides and alkaline earth metal hydroxides. The additive is provided in an amount sufficient to cause formation in the sludge of large silicate molecules with resultant solidification of the sludge by gelling and setting into an inert solid material.

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