Process to remove radioactive elements present in bulk low-grade

Details Process to remove radioactive elements present in bulk low-grade Process to remove radioactive elements present in bulk low-grade

1998-08-14

2000-03-07

Hail, III, Joseph J.

Solid material comminution or disintegration

Processes

With classifying or separating of material

241 2414, 241 273, 241DIG38, 209214, 209221, 209226, 209228, B02C 708

Patent

active

060328819

ABSTRACT:
A method and system for separating, collecting and isolating radioactive metallic elements from low grade, dry, solid non-metallic nuclear bulk waste that includes physically degrading the low grade waste by shredding or grinding into small pieces, configuring the bulk waste into a waste stream, bombarding the waste stream with microwave energy at a preselected frequency treating the waste stream in a time varying magnetic field, causing the radioactive particles to disperse away from the bulk waste and collecting the separated micron sized radioactive particles. The present method and system provide for a low cost, non-complex system of separating out conductive radioactive particles from essentially non-metallic, dry, low grade nuclear waste allowing safe return to the environment of 95% to 99%, by volume, of the processed nuclear waste, greatly reducing the volume of nuclear waste that must be safely stored.

REFERENCES:
patent: 3629135 (1971-12-01), Wilding
patent: 3893845 (1975-07-01), Mahaffey et al.
patent: 5468456 (1995-11-01), Nunez et al.
patent: 5523514 (1996-06-01), Cauquil et al.
patent: 5681434 (1997-10-01), Eastlund
patent: 5750822 (1998-05-01), Gotovchikov et al.
patent: 5868909 (1999-02-01), Eastlund

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