Method for measuring radioactivity of radioactive waste
AssigneeKorea Atomic Energy Research Institute
InventorsSang Eun Bae, Jung Hwan Park, Jun Hyuck Kim, Hwa Kyeung Jeong, Byung Man Kang, Tae Hong Park, Sang Ho Lim, Kun Ho Chung
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Abstract
The present invention relates to a method for measuring radioactivity of radioactive waste, the method comprising an adsorption step (A) of selectively adsorbing a radioactive substance comprising at least one from among radioactive iodine and radioactive cesium from radioactive waste containing radioactive substances on an adsorption member for adsorbing a radioactive substance, and a measurement step (B) of measuring radioactivity of the radioactive substance.
Claims12
A method for measuring radioactivity of radioactive waste, the method comprising:
- an adsorption step (A) of selectively adsorbing a radioactive substance comprising radioactive iodine from radioactive waste containing radioactive substances on an adsorption member for adsorbing a radioactive substance;
- and
- a measurement step (B) of measuring radioactivity of the radioactive substance after separating by desorption of the radioactive substance from the adsorption member with the radioactive substance adsorbed thereon,
- wherein the radioactive iodine comprises at least one selected from the group consisting of I−, I2 and CH3I,
- wherein the adsorption member comprises a substrate and an adsorbent for adsorption of the radioactive iodine, wherein the adsorbent is mixed or dispersed in the substrate, or included on the surface of at least a portion of the substrate,
- wherein the adsorbent for adsorption of the radioactive iodine comprises a platinum group metal comprising at least one selected from platinum (Pt), palladium (Pd), ruthenium (Ru), osmium (Os), rhodium (Rh), iridium (Ir), and an alloy thereof,
- wherein the desorbing of the radioactive substance comprises
- desorbing the radioactive substance by allowing the radioactive substance to electrochemically react by an electrochemical device using the adsorption member with the radioactive substance adsorbed thereon as a working electrode while applying a negative potential of −0.6 V or less.
Dependencies are inferred from the claim text.