Low leach rate glasses for immobilization of nuclear wastes
Low leach rate glasses for immobilization of nuclear wastes
Improved defense and commercial waste glass have about one order of magnitude lower leach rates at 90/sup 0/C in static deionized water than reference glasses. This durability difference diminishes as the leaching temperature is raised, but at repository temperature less than 150/sup 0/C, the improved compositions would have considerable advantages over reference glases. At the melting temperatures necessary for most of the high-durability glasses, volatility was found to be higher than that experienced in processing current reference glases. Higher volatilities might be compensated for by specific design of the off-gas system for improved off-gas treatment and volatile materials recovery. 6 figures, 2 tables.
- University of North Texas United States
Silicon, Thermodynamic Properties, Chemical Composition, Processing, Melting Points, Radioactive Materials, Solidification, Waste Management, Waste Processing, Transition Temperature, Radioactive Wastes, 12 Management Of Radioactive And Non-Radioactive Wastes From Nuclear Facilities, Wastes 052000* -- Nuclear Fuels-- Waste Management, Materials, Hydrogen Compounds, Radioactive Waste Processing, Phase Transformations, Temperature Dependence, Water, Elements, Vitrification, Management, Physical Properties, Separation Processes, Volatility, Leaching, Glass, Semimetals, Oxygen Compounds, Dissolution
Silicon, Thermodynamic Properties, Chemical Composition, Processing, Melting Points, Radioactive Materials, Solidification, Waste Management, Waste Processing, Transition Temperature, Radioactive Wastes, 12 Management Of Radioactive And Non-Radioactive Wastes From Nuclear Facilities, Wastes 052000* -- Nuclear Fuels-- Waste Management, Materials, Hydrogen Compounds, Radioactive Waste Processing, Phase Transformations, Temperature Dependence, Water, Elements, Vitrification, Management, Physical Properties, Separation Processes, Volatility, Leaching, Glass, Semimetals, Oxygen Compounds, Dissolution
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