Process for decontamination of radioactive materials

Details Process for decontamination of radioactive materials Process for decontamination of radioactive materials

1992-01-03

1994-06-21

Walsh, Donald P.

Compositions

Radioactive compositions

423 6, 423 11, 423 17, 423 18, 210682, 210759, 210765, 134 3, 134 2217, 976DIG376, 376309, 376310, G21F 900

Patent

active

053226445

ABSTRACT:
A process for decontaminating radioactive material comprises the step of contacting the material with a dissolving composition to dissolve the contaminants in the material, said composition comprising a dilute solution of about 0.05 molar ethylene diamine tetraacetic acid, about 0.1 molar carbonate, about 10 grams per liter hydrogen peroxide and an effective amount of sodium hydroxide to adjust the pH of the composition to a pH from about 9 to about 11. Also included are the steps of separating the dissolving composition containing the dissolved contaminants from the contacted material and recovering dissolved contaminants from the dissolving composition that has been separated from the material. A composition for dissolving radioactive contaminants in a material, comprising a dilute solution having a basic pH and effective amounts of a chelating agent and a carbonate sufficient to dissolve radioactive contaminants is also provided.

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