Method of preparing solid radioactive or toxic waste for long-te

Details Method of preparing solid radioactive or toxic waste for long-te Method of preparing solid radioactive or toxic waste for long-te

1976-06-22

1979-02-13

Padgett, Benjamin R.

Compositions

Organic luminescent material containing compositions

Scintillating or lasing compositions

106 97, 106281R, G21F 934

Patent

active

041394887

ABSTRACT:
Solid radioactive or toxic wastes are prepared for long-term storage by adding a hardenable binding agent to a container filled with the waste under a partial vacuum. The improved homogeneity of mixing of the binder and waste is enhanced by removing the partial vacuum prior to the hardening of the binder. The temperature of the container is maintained, during the addition of the binder agent to the waste, at a temperature at least equal to the melting temperature of the binder to assure thorough impregnation of the waste thereby. Preferably, the container supporting the resultant waste-binder matrix is placed in a larger container, and the space between the two containers is filled with bituminous material or concrete to provide added security against water penetration during storage.

REFERENCES:
patent: 3142648 (1964-07-01), Lefillatre et al.
patent: 3298961 (1967-01-01), Davis et al.
patent: 3334050 (1967-08-01), Grotenhuis et al.
patent: 3365578 (1968-01-01), Grover et al.
patent: 3463738 (1969-08-01), Fitzgerald et al.
patent: 3828197 (1974-08-01), Boldt
patent: 3883441 (1975-05-01), Murphy et al.
patent: 3935467 (1976-01-01), Gabin
patent: 3988258 (1976-10-01), Curtiss et al.
Perry, J. H. Ed. Chemical Engineers' Handbook (McGraw-Hill Book Co., Inc, New York), 1950, p. 853.

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