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Geochemical Modeling of the Interaction of HLW Glass With Boom Clay Media

Published online by Cambridge University Press:  10 February 2011

Ph. Lolivier
Affiliation:
SCK • CEN, Waste and Disposal, Boeretang 200, B-2400 Mol, Belgium e-mail: [email protected]
K. Lemmens
Affiliation:
SCK • CEN, Waste and Disposal, Boeretang 200, B-2400 Mol, Belgium
P. Van Iseghem
Affiliation:
SCK • CEN, Waste and Disposal, Boeretang 200, B-2400 Mol, Belgium
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Abstract

A geochemical model has been developed to describe the interactions of the main elements released from the COGEMA R7T7 SON68 glass with the Boom Clay environment and predict the formation of secondary phases which may influence the glass corrosion. It is based on two submodels: a model describing the interaction between the clay and its porewater, and a model for glass corrosion in groundwater. According to the calculations, no secondary minerals are predicted to precipitate when glass dissolves in the Boom Clay. The oncentrations of the main elements released from the glass are controlled by stable phases present in the Boom Clay (a.o. Si, Al) or by cation exchange reactions (e.g. Na). The concentration of silica in solution can be maintained below the glass silicon solubility limit. Therefore, the Boom Clay can suppress the saturation of silica, explaining the enhancing effect of Boom Clay on glass corrosion. The influence of the presence of clay on the other components of the glass is also discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1 E.Ebert., W. and Bates, J. K., Mat. Res. Soc. Symp. Proc. 212, 8997 (1991)Google Scholar
2 Y.Vernaz., E. and L.Dussossoy., J., Applied Geochemistry, Suppl. Issue N° 1, 1322 (1992)Google Scholar
3 Grambow, B., Mat. Res. Soc. Symp. Proc. 44, 1521 (1985)Google Scholar
4 Advocat, T., Ph.D. Thesis, Université Louis Pasteur, Strasbourg, France (1991)Google Scholar
5 Gin, S., Mat. Res. Soc. Symp. Proc 412, 189196 (1996)Google Scholar
6 Godon, N., Vernaz, E., Thomassin, J.H. and Touray, J.C., Mat. Res. Soc. Symp. Proc. 127, 97104 (1989)Google Scholar
7 Iseghem, P. Van, Mat. Res. Soc. Symp. Proc. 333, 133144 (1994)Google Scholar
8 Michaux, L., Mouche, E., C.Petit., J. and Fritz, B., Applied Geochemistry, Suppl. Issue N° 1, 41(1992)Google Scholar
9 Grambow, B., in Corrosion of glass, ceramics and ceramics conductors - principles, testing. characterisation and applications, edited by Clark, D. and Zoitos, B. (Noyes Publications, New Jersey, 1992), pp. 124152 Google Scholar
10 Vandenberghe, N., Verhandeling Koninlijke Academie Wetenschappen, letteren en Schone Kunsten van Belgie, XL, n° 147, Brussels (1978)Google Scholar
11 N.Henrion., P., Monsecour, M., Fonteyne, A., Put, M. and Regge, P. De, Radioactive Waste Management and the Nuclear Fuel Cycle 6 (3-4), 313359 (1985)Google Scholar
12 Griffault, L., Merceron, T., R.Mossman., J., Neerdael, B., Canniére, P. De, Beaucaire, C., Daumas, S., Bianchi, A. Christen, R., Rapport Final ARCHIMEDE : Contrat CCE N' FI2WCT92-0117 (1996)Google Scholar
13 Pitsch, H., Ly, J., Stammose, D., Kabare, I. and Lefevre, I., Applied Clay Science 7, 23 (1992)Google Scholar
14 Thellier, C. and Sposito, G., Soil. Sci. Soc. Am. J. 52, 979985 (1988)Google Scholar
15 L.Parkhurst., D., U.S. Geological Survey, Water Resources Investigations, Report 95-4227 (1995)Google Scholar
16 Grambow, B. and M.Strachan., D., In A Comparison of the performance of nuclear waste glass by modeling, PNL 6698, Pacific Northwest Laboratory, Richland, W.A. (1988)Google Scholar
17 Curti, E., Paul Scherrer Institut, PSI-Bericht N° 86 (1991)Google Scholar
18 Lemmens, K., Aertsens, M., Cannière, P. De, Iseghem, P. Van and Gens, R., in The corrosion of nuclear waste glasses in a clay environment : mechanisms and modelling, EUR 17102 (1996)Google Scholar
19 Advocat, T., L.Crovisier., J., Fritz, B. and Vernaz, E., Mat. Res. Soc. Symp. Proc. 176, 241248 (1990)Google Scholar
20 Gin, S., Ph.D. Thesis, Université de Poitiers, France (1994)Google Scholar
21 Curti, E., PSI Bericht Nr 93-05 (1995)Google Scholar