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Journal Articles

Sorption distribution coefficients of selenium on a sandy mudstone under reducing conditions of underground

Iida, Yoshihisa; Kimura, Yuichiro*; Yamaguchi, Tetsuji; Ueda, Masato*; Tanaka, Tadao; Nakayama, Shinichi

Genshiryoku Bakkuendo Kenkyu, 15(2), p.57 - 67, 2009/03

Sorption of radionuclides on rocks is an important factor for safety assessments of geologic disposal of radioactive wastes. Batch sorption tests were conducted to investigate effects of concentrations of NaNO$$_{3}$$ and NaCl on sorption distribution coefficients(Kd) of selenium(Se) on a sandy mudstone under reducing environment of underground. The rock and groundwater used in the tests were sampled from depths of 129-156 m with special care minimizing contact with air. Se was spiked as HSe$$^{-}$$ or Se$$_{4}$$$$^{2-}$$ to the test solutions and kept as HSe$$^{-}$$ throughout the test periods by keeping reducing conditions (Eh, pH) of the solutions. Obtained Kd values were in a range of 0.015-0.037 m$$^{3}$$ kg$$^{-1}$$, which were as high as those for a typical sorbing element, Cs.

Journal Articles

Experimental study on long-term safety assessment considering uncertainties for geological disposal of radioactive wastes; JAERI status at 2005

Yamaguchi, Tetsuji; Sakamoto, Yoshifumi; Iida, Yoshihisa; Negishi, Kumi; Taki, Hiroshi; Akai, Masanobu; Jinno, Fumika; Kimura, Yuichiro; Ueda, Masato; Tanaka, Tadao; et al.

Proceedings of International Conference on Nuclear Energy System for Future Generation and Global Sustainability (GLOBAL 2005) (CD-ROM), 6 Pages, 2005/10

no abstracts in English

Oral presentation

Determination of distribution coefficients on rocks under maintained reducing conditions of underground, 1; Considerations on reducing conditions of underground

Yamaguchi, Tetsuji; Kimura, Yuichiro; Iida, Yoshihisa; Tanaka, Tadao; Nakayama, Shinichi; Ueda, Masato*; Araki, Kunio*

no journal, , 

no abstracts in English

Oral presentation

Determination of distribution coefficients on rocks under maintained reducing conditions of underground, 2; Consideration on conditions of sorption tests

Kimura, Yuichiro; Yamaguchi, Tetsuji; Iida, Yoshihisa; Tanaka, Tadao; Nakayama, Shinichi; Ueda, Masato*; Araki, Kunio*

no journal, , 

no abstracts in English

Oral presentation

Experimental research for long term evaluation on radioactive waste disposal; Progress in 2006

Tanaka, Tadao; Yamaguchi, Tetsuji; Iida, Yoshihisa; Kimura, Yuichiro; Taki, Hiroshi; Fujiwara, Takeshi; Ueda, Masato*; Mukai, Masayuki; Yamada, Fumika; Mizuno, Tsuyoshi; et al.

no journal, , 

no abstracts in English

Oral presentation

Experimental research for long term evaluation on radioactive waste disposal; Progress in 2007

Kimura, Yuichiro; Yamaguchi, Tetsuji; Iida, Yoshihisa; Otsuka, Ichiro; Taki, Hiroshi*; Mukai, Masayuki; Yamada, Fumika; Hoshino, Seiichi; Kadowaki, Mitsushi; Tanaka, Tadao; et al.

no journal, , 

no abstracts in English

Oral presentation

The Effects of NaNO$$_{3}$$ and NaCl concentrations on sorption distribution coefficients of hydrogen selenide anion (HSe$$^{-}$$) on a sandy mudstone

Kimura, Yuichiro; Yamaguchi, Tetsuji; Iida, Yoshihisa; Tanaka, Tadao; Nakayama, Shinichi

no journal, , 

no abstracts in English

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