Conversion of Hanford salt cake to glass: laboratory studies
Approximately 140 million liters of solid salt cake (mainly NaNO/sub 3/), produced by evaporation of aged, alkaline high-level wastes, will be stored in underground tanks when the present Hanford Waste Management Program is completed in the early 1980's. These solid wastes can be converted to silicate-based glasses by melting them either at 1200 to 1300/sup 0/C with appropriate amounts of sand and lime (soda-lime formulation) or at 1000 to 1100/sup 0/C with appropriate amounts of Columbia River basalt and B/sub 2/O/sub 3/ (basalt formulation). Both formulations yield dense, immobile glasses of low water leachability (10/sup -7/ to 10/sup -6/ g cm/sup -2/ day/sup -1/) suitable for terminal storage. The soda-lime formulation is presently preferred over the basalt formulation because it can accommodate more salt cake (50 wt percent versus 30 to 40 wt percent) while yielding a glass whose volume is 10 to 20 percent less than the volume of the salt cake in the melt charge.
- Research Organization:
- Atlantic Richfield Hanford Co., Richland, Wash. (USA)
- DOE Contract Number:
- E(45-1)-2130
- OSTI ID:
- 7352152
- Report Number(s):
- ARH-ST-135
- Country of Publication:
- United States
- Language:
- English
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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
GLASS
HAPO
MANAGEMENT
MELTING
NATIONAL ORGANIZATIONS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTE STORAGE
SOLIDIFICATION
STORAGE
US AEC
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE PROCESSING
WASTE STORAGE