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Current ANSTO Research on Wasteform Development.

DE2004825984

Publication Date	2003
Personal Author	Vance, E. R.; Perera, D. S.; Stewart, M. W. A.; Begg, B. D.; Carter, M. L.
Page Count	14
Abstract	Current ANSTO scientific research on wasteform development for mainly high-level radioactive waste is directed towards practical applications. Titanate wasteform products we have developed or are developing are aimed at immobilisation of: (a) tank wastes and sludges; (b) U-rich wastes from radioisotope production from reactor irradiation of UO(sub 2) targets; (c) Al-rich wastes arising from reprocessing of Al-clad fuels; (d) Technitum 99; (e) high-Mo wastes arising from reprocessing of U-Mo fuels and (f) partitioned Cs-rich wastes. Other wasteforms include encapsulated zeolites or silica/alumina beads for immobilisation of Iodine 129. Wasteform production techniques cover hot isostatic and uniaxial pressing, sintering, and cold-crucible melting. In addition, building on previous work on speciation and leach resistance of Cs in cementitious products, we are studying geopolymers. Although we have a strong focus on candidate wasteforms for actual wastes, we have a considerable program directed at basic understanding of the wasteforms in regard to crystal chemistry, their dissolution behaviour in aqueous media, radiation damage effects and processing techniques.
Keywords	Waste forms High-level radioactive wastes Radioactive waste management Waste management Sludges Dissolution Reprocessing Immobilization Irradiation Radioisotopes Sintering Targets Radiation effects Uranium dioxide Technetium Iodine Aluminum Uranium Molybdenum
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Australian Inst. of Nuclear Science and Engineering, Sutherland.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200508

Current ANSTO Research on Wasteform Development.

Current ANSTO Research on Wasteform Development.
DE2004825984

Publication Date	2003
Personal Author	Vance, E. R.; Perera, D. S.; Stewart, M. W. A.; Begg, B. D.; Carter, M. L.
Page Count	14
Abstract	Current ANSTO scientific research on wasteform development for mainly high-level radioactive waste is directed towards practical applications. Titanate wasteform products we have developed or are developing are aimed at immobilisation of: (a) tank wastes and sludges; (b) U-rich wastes from radioisotope production from reactor irradiation of UO(sub 2) targets; (c) Al-rich wastes arising from reprocessing of Al-clad fuels; (d) Technitum 99; (e) high-Mo wastes arising from reprocessing of U-Mo fuels and (f) partitioned Cs-rich wastes. Other wasteforms include encapsulated zeolites or silica/alumina beads for immobilisation of Iodine 129. Wasteform production techniques cover hot isostatic and uniaxial pressing, sintering, and cold-crucible melting. In addition, building on previous work on speciation and leach resistance of Cs in cementitious products, we are studying geopolymers. Although we have a strong focus on candidate wasteforms for actual wastes, we have a considerable program directed at basic understanding of the wasteforms in regard to crystal chemistry, their dissolution behaviour in aqueous media, radiation damage effects and processing techniques.
Keywords	Waste forms High-level radioactive wastes Radioactive waste management Waste management Sludges Dissolution Reprocessing Immobilization Irradiation Radioisotopes Sintering Targets Radiation effects Uranium dioxide Technetium Iodine Aluminum Uranium Molybdenum
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Australian Inst. of Nuclear Science and Engineering, Sutherland.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200508