Hostname: page-component-745bb68f8f-mzp66 Total loading time: 0 Render date: 2025-01-26T23:21:49.406Z Has data issue: false hasContentIssue false
  • English
  • Français

Diffusion of Radionuclides in Compacted Bentonite : Results from Combined Glass Dissolution and Migration Tests

Published online by Cambridge University Press:  15 February 2011

Masaki Tsukamoto ,
T. Ohe ,
T. Fujita ,
R. HesbÖl  and
H-P. Hermansson
Masaki Tsukamoto
Affiliation:
Central Research Institute of Electric Power Industry, 2–11–1 Iwado-Kita, Komae, Tokyo 201, Japan
T. Ohe
Affiliation:
Central Research Institute of Electric Power Industry, 2–11–1 Iwado-Kita, Komae, Tokyo 201, Japan
T. Fujita
Affiliation:
Central Research Institute of Electric Power Industry, 2–11–1 Iwado-Kita, Komae, Tokyo 201, Japan
R. HesbÖl
Affiliation:
Studsvik Radwaste AB, S-611 82 Nyköping, Sweden
H-P. Hermansson
Affiliation:
Studsvik Material AB, S-611 82 Nyköping, Sweden
Get access

Abstract

Diffusion experiments of radionuclides in compacted sodium bentonite with a dry density of 1.0 g/cm3 were performed in nitrogen gas atmosphere at 90 °C for 208 d and 375 d. The corrosion experiments of crushed radioactive glass, JSS-A, carried out simultaneously to provide the source of the radionuclides for the diffusion experiments. The normalized elemental mass losses of cesium isotopes and 238Pu were lower than those of boron (ca. 10 g/m2) probably because of the difference of sorption and/or precipitation. The apparent diffusion coefficients of 238Pu, 234U and 125Sb were determined to be 2x 10-14 m2/s, 5x 10-12 m2/s and 2x 10-12 m2/s, respectively. The distribution coefficient of Pu estimated from the diffusion data was of the same order as that from batch sorption experiments. The glass corrosion and the plutonium diffusion were described by the geochemical codes PHREEQE, STRAG4 and GESPER. The calculation results well fitted the observed data.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 291
Copyright
Copyright © Materials Research Society 1995

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

REFERENCES

1. Ohe, T., Tsukamoto, M., Inoue, T., Kinoshita, M., Waste Manage. 11, 191 (1991).Google Scholar
2. Tsukamoto, M., Ohe, T., Fujita, T., Hesbol, R., Hermansson, H-P., Radiochim. Acta (in print).Google Scholar
3. Sanchez, A. L., Murray, J. W., Sibley, T. H., Geochim. Cosmochim. Acta. 49, 2297 (1985).Google Scholar
4. K. Bond, A., Cross, J. E., Ewart, F.T., Radiochim. Acta 52/53, 433 (1991); T. E. Payne and T. D. Waite, ibid., 52/53, 487 (1991).Google Scholar
5. Ohe, T., Tsukamoto, M., Fujita, T., Hesbol, R., Hermansson, H-P., in 1993 Int. Conf. on Nuclear Waste Management and Environmental Remediation. Prague, Czech. Vol.1, (1993) pp. 197–205.Google Scholar
6. Bond, K. A., Haworth, A., Sharland, S. M., Smith, A. C., Tweed, C. J., in Scientific Basis for Nuclear Waste Management XIV, edited by Abrajano, T. and Johnson, L. H. (Mater. Res. Soc. Proc. 212, Pittsburgh, PA, 1991) pp. 585–592.Google Scholar
7. Hesböl, R., Studsvik Report STUDSVIK/NW-92/39, 1992.Google Scholar
8. Hermansson, H-P., Christensen, H., Björner, I-K., Clark, D.E., Yokoyama, H., Werme, L., in Scientific Basis for Nuclear Waste Management VII, edited by McVay, G. L. (Elsevier Science Publishers, New York, 1984), pp. 671–679.Google Scholar
9. Ohe, T. and Tsukamoto, M., J. Atomic Energy Soc. Jap. 33 (8), 761 (1991)(in Japanese with English abstract, figures and tables).Google Scholar
10. “Nendo Handbook” (Handbook of clay) 2nd ed. edited by the Nihon-Nendogakkai, (Gihoudo, Tokyo, 1987), pp. 122–123 (in Japanese).Google Scholar
11. Björner, I-K., Christensen, H., Hermansson, H-P., Tsukamoto, M., Werme, L.. in Scientific Basis for Nuclear Waste Management XII, edited by W. Lutze and R. C. Ewing (Mater. Res. Soc. Proc. 127, Pittsburgh, PA, 1987), pp. 113–120.Google Scholar
12. Lutze, W., Presented at the 4th Int. Conf. Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere (Migration ’93), Charleston, 1993.Google Scholar
13. Inagaki, Y., Furuya, H., Idemitsu, K., Yonezawa, S., J. Nucl. Mat. 208, 27 (1993).Google Scholar
14. Sato, H., Ashida, T., Kohara, Y., Yui, M., in Scientific Basis for Nuclear Waste Management XVI, edited by C. G. Interrante and R. Pabalan (Mater. Res. Soc. Proc. 294, Pittsburgh, PA, 1993), pp. 403–408.Google Scholar
15. Robinson, R. A. and Stokes, R. H., Electric solutions. Butterworths, London, p. 454.Google Scholar
16. Parkhurst, D. L., Thorstensen, D. C., Plummer, L.N., PB81–167801, U. S. Geological Survey, Richmond, 1980.Google Scholar
17. Ito, M., Suzuki, K., Danhara, T., Shibata, M., Kamei, G., Sasaki, Y., in Proc. 1992 Fall Meeting Atomic Energy Soc. Jap., Nagoya, 1992, F5 (in Japanese).Google Scholar
18. Nakayama, S., Ahn, J., Ikeda, T., Ohe, T., Kawanishi, M., Tsukamoto, M., Kimura, H., Munakata, M., J. Atomic Energy Soc. Jap. 34 (4), 342 (1992) (in Japanese with English abstract, figures and tables).Google Scholar
19. Tardy, Y. and Garrels, R. M., Geochim. Cosmochim. Acta 38, 1101 (1974).Google Scholar
20. Ohe, T., Ahn, J., Ikeda, T., Kanno, T., Chiba, T., Tsukamoto, M., Nakayama, S., Nagasaki, S., J. Atomic Energy Soc. Jap. 35 (5), 420 (1993) (in Japanese with English abstract, figures and tables).Google Scholar
21. Grambow, , Lutze, W., Ewing, R. C., Werme, L. O., in Scientific Basis for Nuclear Waste Management XII, edited by Lutze, W. and Ewing, R. C. (Mater. Res. Soc. Proc. 127, Pittsburgh, PA, 1988), pp. 531–541.Google Scholar
22. Stumm, W., Kummert, R., Sigg, L., Croat. Chem. Acta 53, 291 (1980).Google Scholar
23. Cross, J. E., Ewart, F. T., Tweed, C. J., AERE R12324, Harwell Laboratory, Oxfordshire (1987).Google Scholar
24. Phillips, S. L., Hale, F. V., Silvester, L. F., Siegel, M. D., NUREG/CR-1864 Vol.1, 1988.Google Scholar
25. Fujita, T., Tsukamoto, M., Ohe, T., Nakayama, S., and Sakamoto, Y., this volume.Google Scholar
26. Torstenfelt, B., Radiochim. Acta 39, 105 (1986).Google Scholar