Current ANSTO research on wasteform development
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Australian Nuclear Association
Abstract
In 1978, Ringwood suggested ceramic assemblages of titanate minerals could be used to incorporate high-level waste from nuclear fuel reprocessing. In these assemblages waste ions are dilutely incorporated into the crystalline mineral-analogue phases. Synroc-C is one of the early titanate assemblages and it has become the archetype from which waste forms for various applications have been derived. Table 1 shows the phase constitution of synroc-C, containing 20 wt% HLW, and the radionuclides which can be incorporated in the various phases. This material was consolidated into a dense ceramic by uniaxial hot pressing at ∼ 1150 deg C. ANSTO has subsequently undertaken both contract and collaborative work on a variety of waste streams that are briefly described as well as extensive range of wasteform characterisation.
Description
Physical copy held by ANSTO Library at DDC: 621.48/12.
Keywords
Aluminium silicates, ANSTO, Cements, Cesium, Glass, High-level radioactive wastes, Hollandite, Iodine 129, Plutonium, Plutonium oxides, Pyrochlore, Radioactive waste management, Solidification, Structural chemical analysis, Synroc process, Technetium, Titanates, Uranium ores, Waste forms, Waste processing, Zirconium phosphates
Citation
Vance, E. R., Begg, B. D., Stewart, M. W. A., Moricca, S., Smith, K. L., Walls, P. A., Perera, D. S., Day, R. A., Carter, M. L., McGlinn, P. J., Zhang, Y., & Thomas, B. Current ANSTO research on wasteform development. Paper presented to the ANA 2003 "Fifth Conference on Nuclear Science and Engineering in Australia", Canberra, ACT, Australia, 5-6 November 2003. In ANA 2003: Fifth conference on Nuclear Science & Engineering in Australia: Rydges Lakeside Hotel, Canberra, A.C.T., Australia, 5-6 November 2003: Conference handbook (pp. 124-125). Canberra, ACT: Australian Nuclear Association. The Association.