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Effect of Overpack Materials on Glass Leaching in Geological Burial

  • Lars Werme (a1), L. L. Hench (a2) and Alexander Lodding (a3)

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This is one of two papers discussing the findings in an in situ-burial experiment, presently being performed in the Stripa mine in Sweden. The purpose of the experiment is to evaluate the effects of various components in the SKBF/KBS waste storage system on the leaching of the vitreous waste form. Two configurations of glass, canister, overpack and buffer/backfill materials were designed (Figs. 1 and 2). Both configurations were inserted into 56 mm diameter boreholes in the Stripa mine and maintained at 90°C. One of the configurations (Fig. 2) was also kept at ambient temperature, 8°C. In the experiments two glass types were used, ABS 39 and ABS 41 (Table 1). These glasses, developed by Dr. T. Lakatos of the Swedish Glass Research Institute, contain 9% simulated fission products by weight and are compatible with the French AVM process.

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1. Hench, L. L., Werme, L. O. and Lodding, A., paper to this Conference.
2. KBS Report; Handling of Spent Fuel and Final Storage of Vitrified High Level Reprocessing Waste, Stockholm (1978).
3. Clark, D. E., Pantano, C. G. and Hench, L. L., (1979) in Glass Corrosion, Books for Industry, New York.
4. Sanders, D. M., Person, W. D. and Hench, L. L., (1972) Appl. Spectroscopy, 26,530.
5. Sanders, D. M., Person, W. D. and Hench, L. L., (1974) Appl. Spectroscopy, 28, 247.10.1366/000370274774332623
6. Lodding, A., (1982) Review of Analytical Chemistery.
7. Scherrer, S. and Nandin, F., (1977) Proc. XI Intern. Congr. Glass, Prague, vol. III, p. 301.
8. Hench, L. L., and Clark, D. E. (1978) J. Non-Cryst. Solids, 28, 83.10.1016/0022-3093(78)90077-7
9. Tournay, J-C., Thomassin, J-H., Baillif, P. and Scherrer, S., (1980) J. Non-Cryst. Solids, 38 and 39, 643.
10. McIntyre, N. S. and Strathdee, G. G., (1980) Suface Science 100, 71.
11. Marinsky, J., private communication.

Effect of Overpack Materials on Glass Leaching in Geological Burial

  • Lars Werme (a1), L. L. Hench (a2) and Alexander Lodding (a3)

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