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JAEA Reports

Evaluation of mass transport property using natural Uranium-series and Thorium-series nuclides in the Toki Granite

Hama, Katsuhiro

JAEA-Data/Code 2016-006, 23 Pages, 2016/07

JAEA-Data-Code-2016-006.pdf:1.6MB

The Mizunami Underground Research Laboratory project is being pursued by the Japan Atomic Energy Agency to enhance the reliability of relevant disposal technologies through investigations of the deep geological environment within the host crystalline rock at Mizunami City in Gifu Prefecture, central Japan. The project proceeds in three overlapping phases, Surface-based investigation Phase, Construction Phase and Operation Phase. The MIU Project has been ongoing the Phase III. As a part of the Phase III investigation, evaluation of mass transport property using natural Uranium-series and Thorium-series nuclides has been carried out. In this report, the compilation of existing data and preliminary evaluation was carried out.

Journal Articles

Measurement of distribution coefficients of U series radionuclides on soils under shallow land environment, 2; pH dependence of distribution coefficients

Sakamoto, Yoshiaki; Ishii, Tomoaki*; Inagawa, Satoshi*; Gunji, Yasuyoshi*; Takebe, Shinichi; Ogawa, Hiromichi; Sasaki, Tomozo*

Genshiryoku Bakkuendo Kenkyu, 8(1), p.65 - 76, 2001/09

In order to study adsorption behavior of U series radionuclides(Pb, Ra, Th, Ac, Pa and U) in aerated zone environment (loam-rein water system) and aquifer environment(sand-groundwater system) for safety assessment of U bearing waste), pH dependence of distribution coefficients of each element have been obtained. The pH dependence of distribution coefficients of U, Ac, Th, Ra and Pb was analyzed by model calculation of adsorption behavior based on chemical forms of each elements and soil surface characteristics, which are a cation exchange capacity and surface charge. From model calculation of adsorption behavior, the distribution coefficients' values and adsorption behavior of Pb, Ra, Th, Ac and U could be showed by a combination of cation exchange and surface-complexation adsorption model.

Journal Articles

Measurement of distribution coefficients for uranium series radionuclides under shallow land environment condition, 1

Ishii, Tomoaki*; Inagawa, Satoshi*; Gunji, Yasuyoshi*; Sakamoto, Yoshiaki; Takebe, Shinichi; Ogawa, Hiromichi; Sasaki, Tomozo*

Genshiryoku Bakkuendo Kenkyu, 8(1), p.55 - 64, 2001/09

Distribution coefficients of Uranium series nuclide(Pb,Ra,Ac,Th,Pa and U) were obtained under aerated zone environment and aquifer environment, for the safety evaluation of shallow underground disposal of uranium bearing waste. The distribution coefficients of them on 4 kinds of soil such as the loam in the rain water as for aerated zone environment and on 3 kinds of soil and rock such as the sand in groundwater as for aquifer environment have been measured by batch method. The distribution coefficients in aerated zone environment were one or two orders in magnitude higher than that in aquifer environment, except Ac. And, there was approximately the linear correlation on the relationship between cation exchange capacity and specific surface area, which are representative physical property of the soil, and distribution coefficient of lead, radium and protactinium.

JAEA Reports

None

; ; ; Saito, Hiroshi;

JNC-TN7410 2000-004, 16 Pages, 2000/04

JNC-TN7410-2000-004.pdf:0.5MB

Journal Articles

Distributions of uranium-series radionuclides in rock and migration rate of uranium at the Koongarra uranium deposit, Australia

Yanase, Nobuyuki; Sato, Tsutomu; ; Sekine, Keiichi

Radiochimica Acta, 82, p.319 - 325, 1998/00

no abstracts in English

Journal Articles

Groundwater geochemistry in the Koongarra ore deposit, Australia, II; Activity ratios and migration mechanisms of uranium series radionuclides

Yanase, Nobuyuki; T.E.Payne*; Sekine, Keiichi

Geochemical Journal, 29, p.31 - 54, 1995/00

 Times Cited Count:21 Percentile:52.89(Geochemistry & Geophysics)

no abstracts in English

Journal Articles

Mesurement of uranium series radionuclides in rock and groundwater at the Koongarra ore deposit, Australia, by gamma spectrometry

Yanase, Nobuyuki; Sekine, Keiichi

Mater. Res. Soc. Symp. Proc., Vol. 353, 0, p.1235 - 1242, 1995/00

no abstracts in English

Journal Articles

Study on role of $$^{234}$$Th in uranium series nuclides migration

Onuki, Toshihiko; *; Murakami, Takashi

Mater. Res. Soc. Symp. Proc., Vol. 212, p.733 - 740, 1991/00

no abstracts in English

Journal Articles

Migration behavior of uranium series nuclides in altered quartz-chlorite schist

Onuki, Toshihiko; Murakami, Takashi; Sekine, Keiichi; Yanase, Nobuyuki; Isobe, Hiroshi; Kobayashi, Yoshii

Materials Research Society Symposium Proceedings, Vol. 176, p.607 - 614, 1990/00

no abstracts in English

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