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Mobilization/Retention of Radionuclides during Corrosion of High Burnup Spent Fuel and Backfill Materials in Salt Brines

Published online by Cambridge University Press:  11 February 2011

Andreas Loida ,
Bernhard Kienzler  and
Horst Geckeis
Andreas Loida
Affiliation:
Forschungszentrum Karlsruhe, Institut für Nukleare Entsorgung, P.O. Box 3640, D-76021 Karlsruhe, Germany
Bernhard Kienzler
Affiliation:
Forschungszentrum Karlsruhe, Institut für Nukleare Entsorgung, P.O. Box 3640, D-76021 Karlsruhe, Germany
Horst Geckeis
Affiliation:
Forschungszentrum Karlsruhe, Institut für Nukleare Entsorgung, P.O. Box 3640, D-76021 Karlsruhe, Germany
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Abstract

With respect to the assessment of the long-term behavior of the waste form spent fuel it is of high importance to study the fuel alteration in contact with groundwater and near field materials. The aim of this work is to evaluate the impact of candidate backfill materials hydroxylapatite and magnetite on the overall corrosion behavior of this waste form in salt brine; both materials are used in corrosion tests together with spent fuel. The instant releases and the matrix dissolution rates appear to be similar in presence and in absence of any backfill material under study. However, Am,Np,Pu,U and Sr are retained at different ratios on the hydroxylapatite, on the magnetite and on the fuel sample, indicating possibly the formation of different radionuclide containing new solid phases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 757: Symposium II – Scientific Basis for Nuclear Waste Management XXVI , 2002 , II8.2
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

1. Loida, A., Grambow, B., Geckeis, H., Dressler, P., “Processes controlling radionuclide re lease from spent fuel”, Mater. Res. Soc. Proc., 353, 1995, 577–584 Google Scholar
2. Grambow, B., Loida, A., Martinez-Esparza, A., Diaz-Arocas, P., de Pablo, J., Paul, J.-L., Marx, G., Glatz, J.-P., Lemmens, K., Ollila, K., Christensen, H., “Source term for perform ance assessment of spent fuel as a waste form”, European Commission, Nuclear Science and Technology, EUR 19140 EN (2000)Google Scholar
3. Gauglitz, R., Holtersdorf, M., Franke, W., Marx, G., Mater. Res. Soc. Proc., 257, 1992, 567–673 Google Scholar
4. Gauglitz, R., Holtersdorf, M., Franke, W., Marx, G., “Immobilization of Heavy Metals by Hydroxylapatite”, Radiochimica Acta, 58/59 253–257 (1992)Google Scholar
5. Johnson, L.H., Smith, P.A., “The Interaction of Radiolysis Products and Canister Corro sion Products and the Implications for Spent Fuel Dissolution and Radionuclide Trans port in a Repository for Spent Fuel”, NAGRA Technical Report 00–04, Feb. 2000 Google Scholar
6. Grambow, B., Loida, A., Dressler, P., Geckeis, H., Gago, J., Casas, I., de Pablo, I. J., Gimenez, J., J., , Torrero, M.E‥, “Long-term safety of radioactive waste disposal: Chemical reaction of fabricated and high burnup spent fuel with saline brines”, Forschungszentrum Karlsruhe, Wissenschaftliche Berichte FZKA 5702 (1996)Google Scholar
7. Grambow, B., Müller, R., Mater. Res. Soc. Proc 176, 1990 229–237 Google Scholar
8. Rudolph, G. (1998), personal communicationGoogle Scholar