Removal of Radioactive Cesium from Soil by Ammonium Citrate Solution and Ionic Liquid

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  • ISHIWATA Shunji
    Medical Pharmaceutics and Therapeutics, Division of Clinical Pharmacy, Faculty of Pharmacy, Kinki University
  • TAGA Atsushi
    Laboratory of Pathological and Biomolecule Analyses, Faculty of Pharmacy, Kinki University
  • OGATA Fumihiko
    Laboratory of Public Health, Faculty of Pharmacy, Kinki University
  • KITAKOUJI Manabu
    Drug Evaluation and Analysis, Division of Clinical Pharmacy, Faculty of Pharmacy, Kinki University
  • OUCHI Hidekazu
    Division of Pharmaceutical Education, Faculty of Pharmacy, Kinki University
  • YAMANISHI Hirokuni
    Atomic Energy Research Institute, Kinki University
  • INAGAKI Masayo
    Atomic Energy Research Institute, Kinki University

Bibliographic Information

Other Title
  • クエン酸アンモニウム水溶液とイオン液体を用いた放射性セシウム汚染土壌の除染方法
  • クエンサン アンモニウム スイヨウエキ ト イオン エキタイ オ モチイタ ホウシャセイ セシウム オセン ドジョウ ノ ジョセン ホウホウ

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Abstract

  Radioactive cesium has strongly bound soil as time proceeded, which could not be cleaved in mild condition. We have found that serial treatment of ammonium citrate solution and ionic liquid removed radioactive cesium from soil effectively. The sequence of the treatment is crucial, since inverse serial treatment or mixture of two kinds of solution did not show such an effect, which suggested that ammonium citrate unlocked trapped cesium in soil and ionic liquid solved it. We also found that repeating serial treatment and prolonged treatment time additively removed cesium from soil.

Journal

  • Journal of Smart Processing

    Journal of Smart Processing 4 (6), 294-297, 2015-11-20

    Smart Processing Society for Materials, Environment & Energy (High Temperature Society of Japan)

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