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Sorption Behavior of Radium and Actinium on Soils

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Abstract

Distribution coefficients of226Ra and227Ac on soils and tuff have been obtained by a batch method. The distribution coefficients of Ra on loam, two kinds of sand and tuff were 28m3/kg, 0.45m3/kg, 0.19m3/kg and 1.9m3/kg, respectively. A linear relationship between the distribution coefficients of Ra on each soil and Cation Exchange Capacity(CEC) of each soil was obtained to suggest cation exchange sorption reaction of Ra2+ on soil surface. Sorption-migration behavior of Ra in sand column has been studied. Most of Ra remained in the column after passing of 5,000 pore volume of the column, showing several times the distribution coefficients of Ra than that by the batch method. The distribution coefficients of227Ac on the soil samples were in the range from 1m3/kg to 10m3/kg.

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Authors and Affiliations

  1. Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-1195, Japan

    Yoshiaki Sakamoto, Shinichi Takebe, Hiromichi Ogawa & Susumu Muraoka

  2. Nuclear Fuel Industries, LTD., Technical Development Department, Tokai-mura, Naka-gun, Ibaraki-ken, 319-1196, Japan

    Tomoaki Ishii, Satoshi Inagawa & Yasuyoshi Gunji

Authors
  1. Yoshiaki Sakamoto
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  2. Shinichi Takebe
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  3. Hiromichi Ogawa
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  4. Susumu Muraoka
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  5. Tomoaki Ishii
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  6. Satoshi Inagawa
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  7. Yasuyoshi Gunji
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Correspondence to Yoshiaki Sakamoto.

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Sakamoto, Y., Takebe, S., Ogawa, H. et al. Sorption Behavior of Radium and Actinium on Soils. MRS Online Proceedings Library 663, 1207 (2000). https://doi.org/10.1557/PROC-663-1207

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  • DOI: https://doi.org/10.1557/PROC-663-1207

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