Abstract: A radioactive iodine removal apparatus applying a radioactive iodine adsorbent according to an embodiment of the present invention includes an iodine filter that is provided in a chamber of a duct to which flue gas containing radioactive iodine is fed, and includes a radioactive iodine adsorbent that adsorbs radioactive iodine contained in the flue gas. The radioactive iodine adsorbent includes a carrier constituting a matrix and an impregnated substance with which the carrier is impregnated. The impregnated substance contains at least TEDA, and an impregnated amount of the TEDA is from 3.0% by mass to less than 10.0% by mass.

Abstract: A leak testing device for an iodine filter according to the present embodiment includes an iodine adsorption unit including an iodine filter provided in a chamber provided in a duct, to which flue gas containing radioactive iodine is fed, and including an iodine adsorbing material that adsorbs radioactive iodine contained in the flue gas, a fluorine-containing-reagent feed unit that feeds a fluorine-containing reagent that does not contain chlorine into the duct, and a first fluorine-containing-reagent-concentration measurement unit and a second fluorine-containing-reagent-concentration measurement unit that measures a concentration of the fluorine-containing reagent on an upstream side and a downstream side of the iodine filter.

Abstract: A radioactive iodine removal apparatus applying a radioactive iodine adsorbent according to an embodiment of the present invention includes an iodine filter that is provided in a chamber of a duct to which flue gas containing radioactive iodine is fed, and includes a radioactive iodine adsorbent that adsorbs radioactive iodine contained in the flue gas. The radioactive iodine adsorbent includes a carrier constituting a matrix and an impregnated substance with which the carrier is impregnated. The impregnated substance contains at least TEDA, and an impregnated amount of the TEDA is from 3.0% by mass to less than 10.0% by mass.

Abstract: A leak testing device for an iodine filter according to the present embodiment includes an iodine adsorption unit including an iodine filter provided in a chamber provided in a duct, to which flue gas containing radioactive iodine is fed, and including an iodine adsorbing material that adsorbs radioactive iodine contained in the flue gas, a fluorine-containing-reagent feed unit that feeds a fluorine-containing reagent that does not contain chlorine into the duct, and a first fluorine-containing-reagent-concentration measurement unit and a second fluorine-containing-reagent-concentration measurement unit that measures a concentration of the fluorine-containing reagent on an upstream side and a downstream side of the iodine filter.