System for removing liquid from a slurry of liquid and powdered

Details System for removing liquid from a slurry of liquid and powdered System for removing liquid from a slurry of liquid and powdered

1986-03-04

1989-06-06

Cintins, Ivars

Liquid purification or separation

Processes

Separating

100107, 210350, 210406, 2104161, B01D 2936, B01D 3700

Patent

active

048369373

ABSTRACT:
In order to remove liquid from a slurry of water and powdered material, and particularly from a slurry containing spent powdered ion exchange resins and other media used to decontaminate water in nuclear power plants, a vessel is filled with the slurry. The vessel contains filters, particularly panels which are arrayed in the upper portion of the vessel and through which water is filtered leaving a body ("cake") of the powdered material in the vessel. The filters are surrounded on at least their sides and top by a bag of pliant material. This bag defines a variable volume region and may be evacuated to compress the cake against the filters, prevent breaking suction at the filters and enabling them to continue to remove the water remaining in the cake so that additional water may be removed from the cake and discharged from the vessel, leaving a compact mass which efficiently utilizes the volume of the vessel, thereby preparing the vessel and the dewatered slurry for disposal.

REFERENCES:
patent: 3180825 (1965-04-01), Couvreur et al.
patent: 3448859 (1969-06-01), Hall et al.
patent: 3965000 (1976-06-01), Mikule et al.
patent: 4092247 (1978-05-01), Madsen
patent: 4337153 (1982-06-01), Prior
patent: 4385557 (1983-05-01), Hartmann
patent: 4461710 (1984-07-01), Erickson et al.

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