CURRENT ANSTO RESEARCH ON WASTEFORM DEVELOPMENT
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 immobilization of: (a) tank wastes and sludges; (b) U-rich wastes from radioisotope production from reactor irradiation of UO2 targets; (c) Al-rich wastes arising from reprocessing of Al-clad fuels; (d) 99Tc; (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 immobilization of 129I. 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 behavior in aqueous media, radiation damage effects and processing techniques.
- Research Organization:
- Materials, Australian Nuclear Science and Technology Organisation, Menai, NSW 2234 (AU)
- Sponsoring Organization:
- US Department of Energy (US)
- OSTI ID:
- 825984
- Resource Relation:
- Conference: Waste Management 2003 Symposium, Tucson, AZ (US), 02/23/2003--02/27/2003; Other Information: PBD: 27 Feb 2003
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of an Immobilisation Technology for Radioactive Waste Solution from Mo-99 Production
Radioactive Waste Conditioning, Immobilisation, And Encapsulation Processes And Technologies: Overview And Advances (Chapter 7)
Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ANSTO
DISSOLUTION
HIGH-LEVEL RADIOACTIVE WASTES
IRRADIATION
RADIATIONS
RADIOISOTOPES
REPROCESSING
SINTERING
SLUDGES
TANKS
TARGETS
TITANATES
WASTE FORMS
WASTE MANAGEMENT
ZEOLITES