Contribution of the surface diffusion on mass transfer of Ba<sup>2+</sup> in granite matrix
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- Yamaguchi Tetsuji
- Disposal Safety Laboratory, Department of Fuel Cycle Safety Research, JAERI
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- Nakayama Shinichi
- Disposal Safety Laboratory, Department of Fuel Cycle Safety Research, JAERI
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- Kawada Chiharu
- Applied Science Course, Graduate School of Engineering, Tokai University, Present affiliation: Toshiba Corporation, Power Systems & Services Company
Bibliographic Information
- Other Title
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- 花崗岩マトリクス内におけるBa<sup>2+</sup>の拡散に対する表面拡散の寄与
- Contribution of the surface diffusion on mass transfer of Ba〔2+〕 in granite matrix
- Contribution of the surface diffusion on mass transfer of Ba 2 in granite matrix
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Description
The effective diffusivity (De) and the distribution ratio (Kd) of Ba2+ in Inada granite have been determined by the through-diffusion method. Stable BaCl2 solutions of the equal concentration were placed in two reservoirs across a granite sample and the self-diffusion of Ba was observed using radioactive 133Ba. Experiments were performed in triplicate for 10-1, 1 and 10 mol m-3 BaCl2 solutions at 25°C. The De value obtained at a BaCl2 concentration of 10 mol m-3, agreed to the estimated value based on the pore diffusion model. The lower BaCl2 concentrations yielded higher De values and higher Kd values. The variation in De was neither due to the speciation of barium in the solutions nor due to variation in physical properties of the pore structure in the rock because diffusivity of I was the same between 10-1, 1 and 10 mol m-3 BaCl2 solutions. Contribution of diffusion in sorbed state should be responsible for the variation in De.
Journal
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- Journal of Nuclear Fuel Cycle and Environment
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Journal of Nuclear Fuel Cycle and Environment 9 (1), 61-66, 2002
Division of Nuclear Fuel Cycle and Environment, Atomic Energy Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680313377920
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- NII Article ID
- 130003378463
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- NII Book ID
- AA11891371
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- ISSN
- 13434446
- 21867135
- 18847579
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- NDL BIB ID
- 7927394
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed