ADSORBENT FOR ADSORBING IODINE COMPOUNDS AND/OR ANTIMONY, METHOD FOR PREPARING SAID ADSORBENT, AND METHOD AND APPARATUS FOR TREATING RADIOACTIVE WASTE LIQUID BY USING SAID ADSORBENT

摘要

Provided are: an adsorbent for decontaminating iodine compound- and/or antimony-containing radioactive waste liquid by using the flow of water; and a method and an apparatus for treating radioactive waste liquid by using the adsorbent. The adsorbent is characterized by containing a polymer resin and at least 10 parts by weight of a hydrous hydroxide of a rare earth element with respect to 100 parts by weight of the polymer resin, wherein the hydrous hydroxide of the rare earth element contains 1-30 parts by weight of water with respect to 100 parts by weight of the dry product in the hydrous hydroxide and adsorbs iodine compounds and/or antimony.