An approach to thermochemical modeling of nuclear waste glass
- Oak Ridge National Lab., TN (United States)
- Pennsylvania State Univ., University Park, PA (United States)
This initial work is aimed at developing a basic understanding of the phase equilibria and solid solution behavior of the constituents of waste glass. Current, experimentally determined values are less than desirable since they depend on measurement of the leach rate under non-realistic conditions designed to accelerate processes that occur on a geologic time scale. The often-used assumption that the activity of a species is either unity or equal to the overall concentration of the metal can also yield misleading results. The associate species model, a recent development in thermochemical modeling, will be applied to these systems to more accurately predict chemical activities in such complex systems as waste glasses.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 290819
- Report Number(s):
- ORNL/CP-99390; CONF-980521-; ON: DE99000398; TRN: 99:002231
- Resource Relation:
- Conference: 100. annual meeting of the American Ceramic Society, Cincinnati, OH (United States), 3-6 May 1998; Other Information: PBD: [1998]
- Country of Publication:
- United States
- Language:
- English
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