Effects of Weathering on Impregnated Charcoal Removal Efficiency for Radioactive Methyl Iodide
نویسندگان
چکیده
Standby Gas Treatment System (SGTS) is one of the engineered safety features installed in BWR and ABWR plants to limit the discharge of radioactivity into the environment during the reactor accident. Kl3 impregnated charcoal (iodized charcoal) filter is used for removing of radioactive iodine species such as molecular iodine and methyl iodide. It is well known that the removal capability of impregnated charcoals for radioactive methyl iodide deteriorates by various pollutants and humidity in flowing air through impregnated charcoals beds. (1)(2) This paper describes the experimental results of the weathering effects on radioactive methyl iodide removal capability of iodized charcoals under the condition of Loss of Coolant Accident (LOCA), and the weathering evaluation of the actual plants under the normal condition.
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