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Characterization of Water as a Media of Nuclide Migration in a Buffer Material for Geological Disposal

Research Project

Project/Area Number 08458114
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field エネルギー学一般・原子力学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

SATO Seichi  Hokkaido Univ., Graduate School of Eng., Associate Pro., 大学院工学研究科, 助教授 (40117122)

Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1997: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1996: ¥5,800,000 (Direct Cost: ¥5,800,000)
Keywordshigh-level waste / water / vapor pressure / bentonite / montmorillonite / humic acid / tritium / diffusion
Research Abstract

In the safety assessment of high-level radioactive waste disposal, performance assessment of a buffer materials is needed. The buffer materials are saturated with ground water, after the disposal. When the glass waste form is in contact with the ground water, the radionuclides contained are released gradually and migrate in the ground water in the buffer materials. Therefore, the following studies were carried out :
1. Thermodynamic study on the behavior of the water in compacted montmorillonite, which is a major mineral of bentonite as a buffer material (published)
2. Diffusion and its temperature dependence of tritium and ions in compacted montmorillonite to clarify kinetic dehavior of water in bentonite (published except for tritium)
3. Organic matters occuring in clay form complex with fission products and actinides and may affects the nuclide migration. Therefore, complex formation constant of humic acid, a natural organic matter, with the fission products Sr(II) and Eu(III), and the actinide Np(V) were determined. The sorption coefficients of the elements on montmorillonite in the presence of humic acid were studied.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Yuji Torikai: "Thermodynamic Propertires of Water in Compacted Sodium Montmorillonite" Nuclear Technology. 115,7. 73-80 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Mohammad Samadfam: "Complexation Thermodynamics of Sr(II) and Humic Acid" Radiochimica Acta. 73. 211-216 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshinobu Niitsu: "Effects of Humic Acid on the Sorption of Neptunium(V) on Kaolinite" Journal of Nuclear Mataterials. 248. 328-332 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tamotsu Kozaki: "Self-Diffusion of Sodium Ions in Compacted Sodium Montmorillonite" Nuclear Technology. 121,1. 63-69 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Mohammad Samadfam: "Effect of pH on Stability Constants of Sr(II)-Humate Complexes" Journal of Nuclear Science and Technology. 35,8(印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Mohammad Samadfam: "Effects of Humic Acid on the Sorption of Eu(III) onto Kaolinite" Radiochimica Acta. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yuji Torikai: "Thermodynamic Properties of Water in Compacted Sodium Montmorillonite" Nuclear Technology. 115,7. 73-80 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Mohammad Samadfam: "Complexation Thermodynamics of Sr(II) and Humic Acid" Radiochimica Acta. 73. 211-216 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshinobu Niitsu: "Effects of Humic Acid on yhe Sorption of Neptunium (V) on Kaolinite" Journal of Nuclear Mataterials. 248. 328-332 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Tamotsu Kozaki: "Self-Diffusion of Sodium Ions in Compacted Sodium Montmorillonite" Nuclear Technology. 121,1. 63-69 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Mohammad Samadfam: "Effect of pH on Stability Constants of Sr(II)-Humate Comlexes" Journal of Nuclear Science and Technology. 35,8 (in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Mohammad Samadfam: "Effects of Humic Acid on the Sorption of Eu(III) onto Kaolinite" Radiochimica Acta. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yuji Torikai: "Thermodynamic Properties of Water in Compacted Sodium Montmorillonite" Nucl.Technol.115,7. 73-80 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Mohammad Samadfam: "Complexation Thermodynamics of Sr(II) and Humic Acid" Radiochim.Acta. 73. 211-216 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Niitsu: "Effects of Humic Acid on the Sorption of Neptunium(V) on Kaolinite" J.Nucl.Mater.248. 328-332 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Kozaki: "Self-Diffusion of Sodium Ions in Compacted Sodium Montmorillonite" Nucl.Technol.121,1. 63-69 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Mohammad Samadfam: "Effect of pH on Stability Constants of Sr(II)-Humate Complexes" I.Nucl.Sci.Technol.(発表予定).

    • Related Report
      1997 Annual Research Report
  • [Publications] Mohammad Samadfam: "Effects of the Humic Acid on the Sorption of Eu(III) onto Kaolinite" Radiochim.Acta. (発表予定).

    • Related Report
      1997 Annual Research Report
  • [Publications] Yuji Torikai: "Thermodynamic Properties of Water in Compacted Sodium Montmorillonite" Nucl. Technol.115,7. 73-80 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Mohammad Samadfam: "Complexation Thermodynamics of Sr (II) and Humic Acid" Radiochim. Acta. 73. 211-216 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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