Migration of ^<137>Cs Extracted from Contaminated Tea in Sandy Clay Soil

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著者

    • YUCEL Haluk
    • Ankara Nuclear Research and Training Center, Turkish Atomic Energy Authority
    • OZMEN Atilla
    • Ankara Nuclear Research and Training Center, Turkish Atomic Energy Authority

抄録

The migration behavior of <SUP>137</SUP>Cs extracted from the contaminated tea at Chernobyl accident in sandy clay soil has been studied by batch and column experiments. Time dependent sorption behavior of <SUP>137</SUP>Cs extracted from the tea reaches equilibrium slower by 6.5 times than <SUP>137</SUP>Cs<SUP>+</SUP> ions. However, the distribution coefficient of <SUP>137</SUP>Cs extracted from the tea for the sandy clay soil was higher than that of <SUP>137</SUP>Cs<SUP>+</SUP> ions. These results indicate that the sorption of the <SUP>137</SUP>Cs attached to the organic materials dissolved from the tea on the sandy clay soil is slower than that of <SUP>137</SUP>Cs<SUP>+</SUP> ions, and the <SUP>137</SUP>Cs attached to the organic materials have more affinity to the sandy clay soil than <SUP>137</SUP>Cs<SUP>+</SUP> ions.<BR>In the column experiments, most part of <SUP>137</SUP>Cs were adsorbed on the top of soil layer 0-10cm in depth and small amounts of <SUP>137</SUP>Cs were flowed out from the soil layer. The concentration profile at the top of soil layer of 0-10cm is in agreement with that estimated by the dispersion-transport equation considered ion-exchange reaction indicating that the migration of <SUP>137</SUP>Cs extracted from the contaminated tea at the portion of high concentration is dominated by ion-exchange reaction. However, the concentration profile at deeper depth than 10cm is not fitted by estimation by such equation. Therefore, the mechanism other than ion-exchange dominates the migration of <SUP>137</SUP>Cs in the portion of low concentration.

収録刊行物

  • Journal of nuclear science and technology

    Journal of nuclear science and technology 32(6), 547-555, 1995-06-25

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002072736
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • データ提供元
    CJP書誌  J-STAGE 
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