Method and apparatus for decontaminating substances contaminated

Details Method and apparatus for decontaminating substances contaminated Method and apparatus for decontaminating substances contaminated

1995-03-29

1996-10-29

Mai, Ngoclan

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

134 3, 134 26, G21F 900

Patent

active

055704689

ABSTRACT:
A method of effectively decontaminating a substance contaminated with radioactivity, in particular, shot blasting grit contaminated with radioactivity, and a decontaminating apparatus which makes it possible for a single apparatus to perform all of the decontamination processes without moving the contaminated substance from one apparatus to another for each process, thereby realizing reduction in the installation space and achieving an improvement in operational efficiency. The method comprises: decontaminating a contaminated substance by washing it with achelate liquid; draining the chelate liquid; raising the temperature of the substance to a level not lower than the boiling point of a solvent by means of hot air; supplying the solvent to the substance to result in rapid vaporization thereof; removing the remaining chelate fluid liquid by the force of this vaporization and draining the same;and drying the substance.

REFERENCES:
patent: 5126077 (1992-06-01), Morikawa et al.
patent: 5302324 (1994-04-01), Morikawa et al.
patent: 5368649 (1994-11-01), Tsukazaki
patent: 5399203 (1995-03-01), Ishikawa et al.

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