Methods of decontaminating nuclear waste-containing soil

Details Methods of decontaminating nuclear waste-containing soil Methods of decontaminating nuclear waste-containing soil

1994-09-12

1996-02-27

Mai, Ngoclan

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

209 2, G21F 900, B03B 528

Patent

active

054950627

ABSTRACT:
Soil including sand and clays contaminated with nuclear waste materials are decontaminated by treating with anhydrous liquid ammonia alone or in combination with solvated electrons. Methods comprise concentrating radionuclides, such as plutonium and uranium in the fines of soil and clay to yield residual soil products which are sufficiently free of contaminants to allow reclamation. Economics are improved over aqueous systems since ammonia can be recovered and recycled. By concentrating nuclear wastes in soil fines space requirements ordinarily needed for storage of untreated soil and handling costs can be significantly reduced.

REFERENCES:
patent: 4853040 (1989-08-01), Mazur et al.
patent: 4880607 (1989-11-01), Horton et al.
patent: 5110364 (1992-05-01), Mazur et al.
patent: 5411574 (1995-05-01), Turney et al.

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