Apparatus and method for removing water from aqueous sludges

Details Apparatus and method for removing water from aqueous sludges Apparatus and method for removing water from aqueous sludges

1991-07-12

1993-04-13

Silverman, Stanley S.

Liquid purification or separation

Processes

Separating

210774, 210783, 210784, 210184, 210400, 210402, B07D 33048, B07D 3358

Patent

active

052020347

ABSTRACT:
An apparatus for dewatering aqueous sludge is disclosed. A porous drum is partially immersed in a sludge pond. A porous belt is connected between the drum and a roller which moves the belt. As the belt moves, the sludge adheres to the belt. A vacuum is drawn on the interior of the drum, removing some of the water. Sludge which is conveyed on the belt is frozen as it approaches the roller. The frozen sludge is broken into smaller cakes as it leaves the roller. The frozen cakes are subsequently dethawed providing a solid residue which is disposed.

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