Reprocessing of irradiated nuclear fuel

Details Reprocessing of irradiated nuclear fuel Reprocessing of irradiated nuclear fuel

1981-03-09

1986-04-15

Terapane, John F.

Compositions

Radioactive compositions

210710, 210751, 252631, G21F 916, G21F 904

Patent

active

045826374

ABSTRACT:
In the treatment of radioactive effluent it is known to produce a floc being a suspension of precipitates carrying radioactive species in a mother liquor containing dissolved non-radioactive salts. It is also known and accepted practice to encapsulate the floc in a solid matrix by treatment with bitumen, cement and the like. In the present invention the floc is washed with water prior to encapsulation in the solid matrix whereby to displace the mother liquor containing the dissolved non-radioactive salts. This serves to reduce the final amount of solidified radioactive waste with consequent advantages in the storage and disposal thereof.

REFERENCES:
patent: 4077874 (1978-03-01), Conley
patent: 4180476 (1979-12-01), Anav et al.
patent: 4265861 (1981-05-01), Cleary
patent: 4273745 (1981-07-01), Laferty et al.
Blanco et al, ORNL-TM-830, Waste Treatment and Disposal Quarterly Progress Report, Nov. 1963 to Jan. 1964, pp. 59 to 66.

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