Method for conditioning weakly to medium-active wastes

Details Method for conditioning weakly to medium-active wastes Method for conditioning weakly to medium-active wastes

1983-02-04

1986-04-08

Lechert, Jr., Stephen J.

Compositions

Radioactive compositions

Nuclear reactor fuel

252626, 219 72, G21F 934

Patent

active

045811636

ABSTRACT:
Method and apparatus for conditioning weakly to medium-active wastes through fused vitrification by means of electric electrodes for generating the melting heat. The wastes optionally with additive materials are filled into a cup-shaped melting crucible which contains at least two electrodes. The melting crucible is closed off at the top by a furnace hood which has current leads. Voltage is applied to the electrodes via the current leads until the melting crucible containing material to be melted has melted. The current leads are separated from the electrodes. The furnace hood is removed, and after the cooling down, the melting crucible is filled with inactive cement paste to produce a cover layer.

REFERENCES:
patent: 3971671 (1976-07-01), Duperray et al.
patent: 3983050 (1976-09-01), Mecham
patent: 4326842 (1982-04-01), Adachi et al.
patent: 4328423 (1982-05-01), Lorenzo et al.
patent: 4366095 (1982-12-01), Takats et al.
patent: 4376598 (1983-03-01), Brouns et al.

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