Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-10T10:15:00.771Z Has data issue: false hasContentIssue false
  • English
  • Français

Dissolution of used Candu Fuel at Various Temperatures and Redox Conditions

Published online by Cambridge University Press:  28 February 2011

S. Stroes-Gascoyne ,
L. H. Johnson ,
P. A. Beeley  and
D. M. Sellinger
S. Stroes-Gascoyne
Affiliation:
Atomiuc Energy of Canaoa Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, ROE 1LO, Canada.
L. H. Johnson
Affiliation:
Atomiuc Energy of Canaoa Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, ROE 1LO, Canada.
P. A. Beeley
Affiliation:
Atomiuc Energy of Canaoa Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, ROE 1LO, Canada.
D. M. Sellinger
Affiliation:
Atomiuc Energy of Canaoa Limited, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, ROE 1LO, Canada.
Get access

Abstract

Samples of used UO2 fuel exposed to air-saturated water at 25°C for eight years have been examined using electron microscopy and X-ray diffraction techniques. The results, in conjunction with solution analysis uata, show evidence for a UO3.2H2O precipitate on the fuel surface, and confirm the importance of grain-boundary leaching in controlling Cs-137 release. Studies of useo-fuel dissolution under both oxidizing and reducing conditions at 150°C show significantly lower radionuclide release to solution for reducing conditions, illustrating the potential importance of reoox chemistry in determining the long-term stability of used fuel after disposal.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 50: Symposium STOCKHOLM – Scientific Basis for Nuclear Waste Management IX , 1985 , 317
Copyright
Copyright © Materials Research Society 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Vandergraaf, T.T., Atomic Energy of Canada Limited Technical Record, TR-100* (1980).Google Scholar
2. Johnson, L.H., Atomic Energy of Canada Limited Report, AECL-6837 (1982).Google Scholar
3. Johnson, L.H., Burns, K.I., Joling, H.H. and Moore, C.J., Atomic Energy of Canada Limited Technical Record, TR-128* (1981).Google Scholar
4. Johnson, L.H., Joling, H.H., in Scientific Basis for Nuclear Waste Management, Topp, S.V. (ed.) p. 321 (1982).Google Scholar
5. Johnson, L.H., Burns, K.I., Joling, H.H. and Moore, C.J., Nucl. Technol. 63, 470 (1983).Google Scholar
6. Johnson, L.H., Stroes-Gascoyne, S., Chen, J.D., Attas, M.E., Sellinger, D.M. and Delaney, H.G., in Proceedings of the ANS Topical Meeting on Fission Product Behaviour and Source Term Research, Snowbird, Utah, July, 1984 (in press).Google Scholar
7. Johnson, L.H., Joling, H.H., Atomic Energy of Canada Limited Technical Recoro, TR-280* (1984).Google Scholar
8. Johnson, L.H. (unpublisheo data).Google Scholar
9. Johnson, L.H., in Proceedings of the Nineteenth Information Meeting of the Cdnadian Nuclear Fuel Waste Management Program, Atomic Energy of Canada Limited Technical Record, (in press).Google Scholar
10. Wang, R., Battelle Pacific Northwest Laboratory Report, PNL-3566 (1981).Google Scholar
11. Wilson, C.N., Oversby, V.M., in Proceedings of the Waste Management 85 Conference, Tucson, Arizona, March, 1985 (in press).Google Scholar
12. Krupka, K.M., Rai, D., Fulton, R.W. and Strickert, R.G., in Scientific Basis for Nuclear Waste Management, Jantzen, C.M., Stone, J.A. and Ewing, R.C. (eds.) (1985.Google Scholar
13. Bruno, J., Forsyth, R.S. and Werme, L.O., in Scientific Basis for Nuclear Waste Management, Jantzen, C.M., Stone, J.A. and Ewing, R.C. (eds.) (1985).Google Scholar
14. Shoesmith, D.W., Sunder, S., Bailey, M.G., Wallace, G.J. and Stanchell, F.W., Application of Surface Science 20, 39 (1984).Google Scholar
15. Bunji, B. and Zogovic, B., in Proceedings of the Second U.N. International Conference on the Peaceful Uses of Atomic Energy, 3, 350 (1958).Google Scholar
16. Nikitin, A.A., Sergeyeva, E.I., Khodakovskiy, I.L. and Naumov, G.B., Geokhimiya 3, 297 (1972).Google Scholar
17. Notley, M.J.F., Nucd. Technol., 44, 445 (1979).Google Scholar