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ポリイオンコンプレックスとベントナイトを活用した山林の新規除染技術

New decontamination technique for forests with interpolyelectrolyte complex and bentonite

長洲 亮佑*; 吉田 将冬*; 長縄 弘親; 柳瀬 信之; 永野 哲志; 三田村 久吉; 小松崎 将一*; 熊沢 紀之*

Nagasu, Ryosuke*; Yoshida, Masafuyu*; Naganawa, Hirochika; Yanase, Nobuyuki; Nagano, Tetsushi; Mitamura, Hisayoshi; Komatsuzaki, Shoichi*; Kumazawa, Noriyuki*

山林の腐葉土中の放射性セシウムを簡便に取り除く新手法を開発した。負電荷を持ちセシウム吸着能力が高いベントナイト微粒子を散布して放射性セシウムを吸着させ、正電荷を持つポリイオンコンプレックスで、その微粒子を凝集させ捕捉することで、山林の腐葉土中の放射性セシウムを簡便に取り除くことが可能である。

A new method for easily removing of radioactive cesium from muck soil in forests has been developed. Fine particles of bentonite having negative charge and high adsorbing ability for cesium can effectively adsorb radioactive cesium, and then, the bentonite fine particles can aggregate and being trapped by interaction with interpolyelectrolyte complex having positive charge, which enables an easy removal of radioactive cesium from muck soil in forests.

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