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Journal Articles

Data acquisition for predicting radionuclide migration under deep geological environments

Yamaguchi, Tetsuji; Nakayama, Shinichi

JAERI-Conf 2003-018, p.115 - 116, 2003/10

Effective diffusivity was determined for Np(IV) in bentonite material in presence of carbonate and for Pu(IV) in presence of fulvic acid. Adsorption of actinides onto negatively charged mineral surfaces were investigated under conditions that actinides were predominantly present as anionic complex species. The results of this study will reveal behavior of actinides under various geological environments.

JAEA Reports

None

*

PNC-TJ1602 98-001, 134 Pages, 1998/03

PNC-TJ1602-98-001.pdf:4.81MB

None

JAEA Reports

Development of Database System for Performance Assessment (II)

Ueda, Shinzo*

PNC-TJ1211 98-001, 824 Pages, 1998/02

PNC-TJ1211-98-001.pdf:19.06MB

None

JAEA Reports

None

*

PNC-TJ1602 97-003, 126 Pages, 1997/03

PNC-TJ1602-97-003.pdf:3.25MB

None

JAEA Reports

JAEA Reports

Journal Articles

Influence of carbonate on sorption of Np(V) onto soil

Sakamoto, Yoshiaki

Hoshasei Haikibutsu Kenkyu, 1(1), p.107 - 113, 1994/06

no abstracts in English

Journal Articles

Effect of the complexation on solubilit y of Pu(IV) in aqueous carbonate system

Yamaguchi, Tetsuji; Sakamoto, Yoshiaki; Onuki, Toshihiko

Radiochimica Acta, 66-67, p.9 - 14, 1994/00

no abstracts in English

Journal Articles

Durability of an La$$_{2}$$Zr$$_{2}$$O$$_{7}$$ waste form in water

*;

J. Mater. Sci., 28, p.513 - 517, 1993/00

 Times Cited Count:17 Percentile:34.03(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Effects of carbonate and sulfate ions in synthetic groundwater on high-level waste glass leaching

Journal of Materials Science Letters, 9, p.841 - 844, 1990/00

 Times Cited Count:1 Percentile:87.72(Materials Science, Multidisciplinary)

no abstracts in English

Oral presentation

Diffusion of uranyl ions in water and montmorillonite; Molecular dynamics calculation

Arima, Tatsumi*; Inagaki, Yaohiro*; Idemitsu, Kazuya*; Kawamura, Katsuyuki*; Yotsuji, Kenji; Tachi, Yukio

no journal, , 

Molecular dynamics simulations of uranyl ion - carbonate ion - clay - water systems were performed to investigate diffusion behavior of uranyl ion in free water and montmorillonite interlayer.

Oral presentation

The Effect of carbonate ion on the dissolution of UO$$_{2}$$ pellet

Moroi, Yuriko*; Kirishima, Akira*; Akiyama, Daisuke*; Sato, Nobuaki*; Kitamura, Akira; Kimuro, Shingo

no journal, , 

Direct disposal of spent nuclear fuel is considered as an alternative option of geological disposal of high level radioactive wastes. In this case, the dissolution speed of uranium should be one of the most important parameter. In this study, the dissolution behavior of UO$$_{2}$$ in the simulated groundwater contains high concentration of carbonate ion was investigated, then, it was revealed that uranium dissolution was promoted by the carbonate ion.

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