Reducing the volume of depleted ion exchange bead resin

Details Reducing the volume of depleted ion exchange bead resin Reducing the volume of depleted ion exchange bead resin

1995-01-30

1996-10-08

Mai, Ngoclan

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

Treating radioactive liquid

210651, 976DIG380, G21F 900

Patent

active

055641032

ABSTRACT:
A process for removing liquid from depleted ion exchange bead resin includes the steps of: transferring a slurry containing at least 10 volume % of contaminated ion exchange resin beads from storage (10) having a particle size range from 300 micrometers to 1000 micrometers to a blending tank (14) to provide a homogeneous slurry which is fed to a grinder (16) usually by means of pumps (13 and 17), where the beads are fractured, and reduced in size, where no more than 33% of the fractured beads have a relatively similar diameter, allowing subsequent random packing compression; and then passing the processed slurry to a dewatering system (18) where it is separated into liquid (20) and highly compressible waste (22).

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patent: 5164123 (1992-11-01), Goudy, Jr.
patent: 5242503 (1993-09-01), Grant et al.

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