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Immobilization of High Level Nuclear Reactor Wastes in Synroc: A Current Appraisal

Published online by Cambridge University Press:  15 February 2011

V.M. Oversby  and
A.E. Ringwood
V.M. Oversby
Affiliation:
Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia
A.E. Ringwood
Affiliation:
Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia
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Abstract

Results are presented for leach testing at 95°C and 200°C of SYNROC containing 9% and 20% simulated high level radioactive waste, synthetic hollandite and pervoskite samples, and natural zirconolite and pervoskite samples. Single phase synthetic minerals show much higher leach rates than natural mineral samples and polyphase SYNROC samples. Natural zirconolite samples with low radiation damage have leach rates at 200°C based on U which are identical to those measured on SYNROC samples. Natural zirconolites with very large accumulated α dose and radiation damage have leach rates at 200°C which are only 5 times higher than those of low dose samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 6: Symposium D – Scientific Basis for Nuclear Waste Management IV , 1981 , 75
Copyright
Copyright © Materials Research Society 1982

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References

REFERENCES

1. Oversby, V.M. and Ringwood, A.E., submitted to Radioactive Waste Management, (1981).Google Scholar
2. Ringwood, A.E., et al. , Nuclear and Chemical Waste Management, in press (1981).Google Scholar
3. Dosch, R.G. and Lynch, A.W., SAND80-2375, Sandia Laboratories, Albuquerque, New Mexico 87185 (1981).Google Scholar
4. Mendel, J.E., et al. , BNWL-2252, Pacific Northwest Laboratory, Richland, Washington 99352 (1977).Google Scholar
5. Oversby, V.M. and Ringwood, A.E., manuscript in preparation (1981).Google Scholar
6. Oversby, V.M. and Ringwood, A.E., Radioactive Waste Management 1, 289 (1981).Google Scholar
7. Sinclair, W.S. and Ringwood, A.E., Geochem. Journal in press (1981).Google Scholar