| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a soil purification system capable of purifying soil by collecting radioactive cesium from masses of soil while suppressing increase in sizes of apparatuses, complication and increase of energy consumption. <P>SOLUTION: The soil purification system includes a separator, a desorption apparatus, an adsorption tower, and a circulator. The separator applies separation processing to soil including clay minerals to which radioactive cesium is stuck to separate the soil into first particles containing the clay minerals and second particles other than the first particles. The desorption apparatus extracts the radioactive cesium attached to the first particles by an acid aqueous solution of less than 100°C and outputs a cesium containing solution containing the extracted radioactive cesium. The adsorption tower is filled with an adsorbent for adsorbing the radioactive cesium and adsorbs the radioactive cesium contained in the cesium containing solution being in contact with the adsorbent. The circulator circulates a purified solution obtained after adsorbing the radioactive cesium by the adsorption tower to the desorption apparatus. <P>COPYRIGHT: (C)2013,JPO&INPIT |
