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Development of performance assessment models for glass dissolution

  • T. Goto (a1), S. Mitsui (a2), H. Takase (a3), S. Kurosawa (a1), M. Inagaki (a1), M. Shibata (a2) and K. Ishiguro (a1)...

Abstract

NUMO and JAEA have been conducting a joint research since FY2011, which is aimed to enhance the methodology of repository design and performance assessment in preliminary investigation stage for the deep geological disposal of high-level radioactive waste. As a part of this joint research, we have been developing glass dissolution models which include various processes derived from glass-overpack-bentonite buffer interaction, considering the precipitation of Fe-silicates associated with steel overpack corrosion, and Si transport through altered layer of glass. The objective of this modeling work is to show comprehensively the lifetime of the vitrified waste due to glass matrix dissolution timescales through sensitivity analysis, and to identify the feature/process that most strongly influences the lifetime, and to identify future R&D issues that would help to improve the nuclide transport analysis with confidential value and the safety case in future. The sensitivity analysis suggested that the duration of the glass dissolution might be predicted in the ranges from 3.8×103 to 1.9×105 years. Also, the results indicated that the precipitation of Fe–silicate has the strongest influence on the long-team behavior of vitrified waste.

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*(Email: tgoto@numo.or.jp)

References

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1. Mitsui, S. et al. , Scientific Basis for Nuclear Waste Management (Mat. Res. Soc. Symp. Proceedings vol. 1193), pp.397404 (2009).
2. Philippini, V. et al. , Journal of Nuclear Materials 348, pp.6069 (2006).
3. Mayant, C. et al. , Physics and Chemistry of the Earth Parts A/B/C, vol. 33, pp 991999 (2008).
4. Gin, S., Scientific Basis for Nuclear Waste Management (Mat. Res. Soc. Symp. Proceedings vol. 663), pp.207216 (2001).
5. Gin, S. et al. , Nature Communication, 6, 6360 (2015).
6. Gin, S. et al. , Geochimica et Cosmochimica Acta, 151, pp. 6885(2015).
7. Maeda, T. et al. , International Journal of Corrosion, vol. 2011, Article ID 796457.4128 (2011).
8. Jollivet, P. et al. , Journal of Nuclear Materials, 420, pp. 508518 (2012).
9. Fleury, B. et al. , Journal of Nuclear Materials, 442, pp. 1728 (2013).
10. de Combarieu, G, et al. , Applied Geochemistry, 26, pp. 6579 (2011).
11. Michelin, A. et al. , Corrosion Science, 76, pp. 403414 (2013).
12. Burger, E. et al. , Applied Geochemistry, 31, p.p.159170 (2013)
13. Curti, E., Godon, N. and Vernaz, E., Mater. Res. Soc. Symp. Proc. 294, 163170 (1993).
14. Pescatore, C., Radiochim. Acta 66/67, 389-394 (1994).
15. Maillard, S. and Iracane, D., Mater. Res. Soc. Symp. Proc. 506, 231238 (1998).
16. Aertsens, M. and Van Iseghem, P., Proceedings of the European Nuclear Society Meeting, 339-343 (1999).
17. Kuwahara, H. et al. , AESJ, Fall meeting, I44 (2007). (in Japanese)
18. Jollivet, P. et al. , Journal of Nuclear Materials, 281, pp. 231243(2000).
19. Frugier, P., Journal of Nuclear Materials, 380, pp. 821(2008).
20. Inagaki, Y., et al. , Journal of Nuclear Science and Technology Volume 49, No. 4, pp. 438449 (2012).
21. Vernaz, E. et al. , Journal of Nuclear Materials, 298, Issues 1–2, pp. 2736 (2001).
22. Schlegel et al., Applied Geochemistry, 23, p.p. 26192633(2008).
23. Taniguchi, N., et al. , JAEA-Research 2008-11, (2008). (In Japanese)
24. Sené, M. R. et al. , EUR 19119 EN. Luxembourg, Luxembourg: Commission of the European Communities. TIC: 254444 (1999).
25. JNC, JNC-TN1400 99-020 (1999).
26. Rebrenau, L. et al. , Marine Chemistry, 112, p.p. 230233 (2008).
27. Philippini, V. et al. , Journal of Nuclear materials, 348, p.p. 6069(2006).

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