method of removing radioactive cesium decontamination agents and radioactive cesium

摘要

PROBLEM TO BE SOLVED: To provide a radioactive cesium decontamination agent excellent in capability of collecting cesium in a liquid while maintaining mass productivity.;SOLUTION: There is provided a radioactive cesium decontamination agent comprising a covering layer formed out of an organic matter and provided on a surface of magnetic particles, and further agglomerating primary particles containing a cesium absorption component formed out of ferrocyanide and provided on the surface of the covering layer, a cumulative particle diameter (D₅₀) measured by laser diffraction particle size distribution measurement being not less than 2.0 μm and not more than 50 μm, and a value of a cumulative particle size distribution (D₉₀-D₁₀)/D₅₀ being less than 6.;COPYRIGHT: (C)2015,JPO&INPIT