Process and apparatus for treating radioactive waste

Details Process and apparatus for treating radioactive waste Process and apparatus for treating radioactive waste

1982-06-23

1986-02-11

Padgett, Benjamin R.

Compositions

Radioactive compositions

Nuclear reactor fuel

134 10, 159DIG12, 264 05, G21F 908

Patent

active

045697876

ABSTRACT:
A radioactive waste is treated by supplying a liquid concentrate of at least one of a radioactive liquid waste and a radioactive waste slurry to a centrifugal film dryer, thereby drying and pulverizing insoluble and soluble solid matters contained in the concentrate, washing the centrifugal film drier with hot water after the drying and pulverization, settling the effluent washing water together with a condensate containing solid matters generated in the drying and pulverization, and supplying a slurry of insoluble solid matters separated by the settling to the centrifugal film drier, thereby drying and pulverizing the solid matters. The dried powder from the centrifugal film drier can be pelletized in a pelletizer, and effluent washing water generated by washing the pelletizer with hot water after the pelletization can be subjected to the settling together with the effluent washing water and the condensate from the centrifugal film drier. Operating load of the centrifugal film drier is considerably reduced, and the operating efficiency and life of the centrifugal film drier are improved thereby.

REFERENCES:
patent: 4184959 (1978-02-01), Marmo
patent: 4234448 (1980-11-01), Hirano et al.
patent: 4268409 (1981-05-01), Ga et al.
patent: 4290907 (1981-09-01), Horiuchi et al.
patent: 4290908 (1981-09-01), Horiuchi et al.
patent: 4311531 (1982-01-01), Bege et al.

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