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Diffusion and Migration of Ions in Sedimentary Rock Matrix: Behaviour of Cesium and Iodide in Micropores of Sandstone

Published online by Cambridge University Press:  11 February 2011

Haruo Sato  and
Tamotsu Muraoka
Haruo Sato
Affiliation:
Japan Nuclear Cycle Development Institute 4–33 Muramatsu, Tokai-mura, Naka-gun, Ibaraki-ken, 319–1194, JAPAN
Tamotsu Muraoka
Affiliation:
Japan Nuclear Cycle Development Institute 4–33 Muramatsu, Tokai-mura, Naka-gun, Ibaraki-ken, 319–1194, JAPAN
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Abstract

In-diffusion experiments for Cs+ and I- in sandstone were performed as a function of ionic strength of porewater ([NaCl] =0.01, 0.51M) and tracer concentration ([Cs1] =7.5E-5, 1.5E-2M) together with the measurements of the fundamental properties of sandstone, and apparent diffusivities (Da) and rock capacity factors (α) for Cs+ were obtained. The obtained Da-values for Cs+ were scarcely dependent on [NaCl], but increased with increasing [Cs+]. This trend is consistent with that of α-values, indicating that although effective diffusivity and distribution coefficient scarcely depend on [NaCl], those depend on [Cs+]. The concentration profiles of I- were all in breakthrough. Although this indicates that I- diffusion is faster than that of Cs+, the concentration profiles of I- may have been lower than those for blank samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 757: Symposium II – Scientific Basis for Nuclear Waste Management XXVI , 2002 , II3.36
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

1. Sato, H., Shibutani, T. and Yui, M., Journal of Contaminant Hydrology 26, 119 (1997).Google Scholar
2. Power Reactor and Fuel Development Corp. (PNC), PNC Tech. Rep., PNC TN1410 93–059 (1993).Google Scholar
3. Japan Nuclear Cycle Development Institute (JNC), JNC Tech. Rep., JNC TN1410 2000–001 (2000).Google Scholar
4. Sato, H., PNC Technical Report, PNC TN8410 96–190 (1996).Google Scholar
5. Suzuki, T., Nakashima, S., Nagano, T. and Kita, H., Mining Geology, 39 (6), 349 (1989).Google Scholar
6. Eriksen, T., Jacobsson, A. and Pusch, R., SKBF/KBS Tech. Rep., TR 81–15 (1981).Google Scholar
7. Crank, J., The Mathematics of Diffusion, 2nd ed. (Pergamon Press, Oxford, 1975).Google Scholar
8. Sato, H. and Miyamoto, S., JNC Technical Report, JNC TN8400 2001–018 (2001).Google Scholar