Correlation of radionuclide leachabilities with microstructures of glasses containing Savannah River Plant waste

Technical Report · Sat May 01 04:00:00 EDT 1976

DOI:https://doi.org/10.2172/7352028· OSTI ID:7352028

Kelley, J A; Rankin, W N

Leachabilities of cesium and strontium from the glass matrices were correlated with the microstructures of glasses containing waste sludge from two SRP waste tanks. All sludge components, except mercury which volatilized, were completely soluble in the melt, but small amounts of crystalline iron oxide precipitated during cooling. These precipitates were less leachable than the glass matrix. Even though the compositions of the two sludges that were tested were similar, glass containing one of the sludges devitrified during heating at 600/sup 0/C; glass containing the other sludge did not devitrify. Leachability of the devitrified glass was as much as 100 times greater than that of nondevitrified glass, but still very low, less than 10/sup -6/ g/(cm/sup 2/)(day).

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA). Savannah River Lab.
• OSTI ID: 7352028
• Report Number(s): DP-1411
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALI METALS
ALKALINE EARTH METALS
CESIUM
CRYSTAL STRUCTURE
DISPERSIONS
DISSOLUTION
ELEMENTS
GLASS
LEACHING
MANAGEMENT
METALS
MICROSTRUCTURE
MIXTURES
NATIONAL ORGANIZATIONS
PHASE TRANSFORMATIONS
RADIOACTIVE WASTE STORAGE
SAVANNAH RIVER PLANT
SEPARATION PROCESSES
SLURRIES
SOLIDIFICATION
STORAGE
STRONTIUM
SUSPENSIONS
US AEC
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE STORAGE