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Yamaguchi, Tetsuji; Sakamoto, Yoshifumi; Akai, Masanobu; Takazawa, Mayumi; Iida, Yoshihisa; Tanaka, Tadao; Nakayama, Shinichi
Physics and Chemistry of the Earth, 32(1-7), p.298 - 310, 2007/00
Times Cited Count：44 Percentile：72.78(Geosciences, Multidisciplinary)Dissolution rate of montmorillonite, diffusivity of hydroxide ion and permeability coefficient in compacted sand-bentonite mixtures were experimentally determined and formulated. A coupled mass-transport/chemical-reaction code was developed to predict variation in permeability of engineered bentonite barrier with alkaline fluid by using the formulae.
Hama, Katsuhiro; Kunimaru, Takanori; Metcalfe, R.*
Proceedings of 2nd International Meeting on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, p.399 - 400, 2005/03
The current status of the hydrogeochemical investigations are presented.
Hama, Katsuhiro; Kunimaru, Takanori; Metcalfe, R.*
Proceedings of 2nd International Meeting on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, p.399 - 400, 2005/03
The current status of the hydrogeochemical study has been presented.
Yamazaki, Shinichi; Fukushima, Tatsuo; Aoki, Kazuhiro
Proceedings of 2nd International Meeting on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, p.59 - 60, 2005/03
Two off-site Underground Research Laboratory (URL) projects, which are mentioned in the
Sasamoto, Hiroshi; Yui, Mikazu; Arthur, R. C,*
Proceedings of 2nd International Meeting on Clays in Natural and Engineered barriers for Radioactive Waste Confinement (TOURS 2005) (CD-ROM), p.259 - 260, 2005/03
Saline type groundwaters with oil, gas and coal fields are identified in the JNC's extensive database of groundwater samples from throughout Japan. Groundwater data in the Mobara area (a marine based argillaceous rock) located in the well-known
Iijima, Kazuki; Tomura, Tsutomu*; Masuda, Tsuguya*
Proceedings of 2nd International Meeting on Clays in Natural and Engineered barriers for Radioactive Waste Confinement (TOURS 2005) (CD-ROM), p.607 - 608, 2005/00
The batch sorption and desorption experiments of Cs onto bentonite colloid were carried. The sorption data was fitted to Freundlich isotherm and distribution coefficient was obtained as about 20 m
/kg, which is larger than that of powdered bentonite. It might be caused by the difference of the shape of bentonite. In the desorption experiment, almost same distribution coefficient was obtained so that, at least, 30% of Cs was sorbed reversibly.
