Decontamination of matrices containing actinide oxides
- Resource Type
- Patent Application
- Authors
- Source
- Patent File Date: yyyy Nov Th; Other Information: PBD: 1 Dec 1997
- Subject
- 54 ENVIRONMENTAL SCIENCES ACTINIDE COMPOUNDS
REMOVAL
SOILS
REMEDIAL ACTION
ACID HYDROLYSIS
HEAT TREATMENTS
WASHING
DRYING
DECONTAMINATION
- Language
- English
There is provided a method for removing actinides and actinide oxides, particularly fired actinides, from soil and other contaminated matrices, comprising: (a) contacting a contaminated material with a solution of at least one inhibited fluoride and an acid to form a mixture; (b) heating the mixture of contaminated material and solution to a temperature in the range from about 30 C to about 90 C while stirring; (c) separating the solution from any undissolved matrix material in the mixture; (d) washing the undissolved matrix material to remove any residual materials; and (e) drying and returning the treated matrix material to the environment.