[2C01-06] 核種移行・収着

[2C06] Rapid Removal of Cesium from Vermiculite by Collapsing the Interlayers with Hydrothermal Column System

*Xiangbiao Yin¹、Yoshikazu Koma¹、Yusuke Inaba²、Kenji Takeshita² (1. Japan Atomic Energy Agency、2. Tokyo Institute of Technology)

キーワード：Cesium desorption、hydrothermal treatment、volume reduction、ion exchange、decontamination

The decontamination and volume reduction of Cs contaminated soil by efficient Cs removal remains a
great challenge after the Fukushima Daiichi Nuclear Power Station accident. In present work, we studied the removal
of Cs from the clay soils by treating with hydrothermal cations in a column system. The new results showed that Cs
could be selectively removed from its collapsed interlayers in vermiculite by hydrothermally heating at 150°C.