| 摘要 |
PROBLEM TO BE SOLVED: To provide an adsorbent capable of adsorption-collecting efficiently volatile iodine, radioactive anions in effluent, or the like, with excellent crack resistance of a solidified body after solidification treatment, and a method of immobilizing a radioactive element-containing waste capable of providing an encapsulation property of the radioactive element-containing waste and long term stability. SOLUTION: This adsorbent for the radioactive element-containing waste comprises a spherical metal hydroxide containing metal selected from the group of metal atoms comprising metal atoms of groups IV, V, VI, XI, XII, XIII in the periodic table, manganese, iron, cobalt, nickel, lead and bismuth. COPYRIGHT: (C)2006,JPO&NCIPI
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