Enhanced desorption of Cs from clays by a polymeric cation-exchange agent

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• 作者：Chan Woo Park^a ; ^{park85@gmail.com} ; ^{chanwoo@kaeri.re.kr} ; Bo Hyun Kim^a ; ^b ; Hee-Man Yang^a ; Bum-Kyoung Seo^a ; Kune-Woo Lee^a ; ^{nkwlee@kaeri.re.kr}
• 关键词：Polyelectrolyte ; Polyethyleneimine ; Cesium ; Clay ; Desorption
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：5 April 2017
• 年：2017
• 卷：327
• 期：Complete
• 页码：127-134
• 全文大小：1675 K
• 卷排序：327

文摘

A cationic polyelectrolyte has excellent ability to desorb Cs bound strongly to clay. The polycation desorbed significantly more Cs from the clay than did single cations. Additional NH4+ treatment following the polycation treatment enhanced desorption of Cs. The reaction yielded efficient desorption (95%) of an extremely low concentration of Cs-137 in the clay.