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http://dx.doi.org/10.1016/j.net.2020.10.011

Radioiodine removal from air streams with impregnated UVIS® carbon fiber  

Obruchikov, Alexander V. (Department of High-Energy Chemistry and Radioecology, D. Mendeleev University of Chemical Technology of Russia)
Merkushkin, Aleksei O. (Department of High-Energy Chemistry and Radioecology, D. Mendeleev University of Chemical Technology of Russia)
Magomedbekov, Eldar P. (Department of High-Energy Chemistry and Radioecology, D. Mendeleev University of Chemical Technology of Russia)
Anurova, Olga M. (Moscow Aviation Institute (National Research University)
Publication Information
Nuclear Engineering and Technology / v.53, no.5, 2021 , pp. 1717-1722 More about this Journal
Abstract
This study is devoted to the ability of carbon fiber material samples impregnated with various amounts of barium iodide and triethylenediamine to remove radioactive methyliodide from air streams. The main sorption characteristics of impregnated UVIS® carbon fiber were determined and the use of this material for purifying of technological gas flows at nuclear power plants was evaluated. The methyliodide trapping efficiency by samples impregnated with barium iodide, TEDA, and their mixture was 83.4 ± 0.8%; 93.1 ± 0.6% and 93.5 ± 0.7% respectively, under the same conditions. The study established a significantly higher capacity (8.3 ± 0.07 mg/cm2) of samples impregnated simultaneously with both chemical compounds toward methyliodide. Under the same test conditions, the values of this parameter for the samples impregnated separately with TEDA and BaI2 were 2.85 ± 0.05 mg/cm2 and 0.86 ± 0.04 mg/cm2, respectively.
Keywords
Gaseous radioactive waste; Methyliodide sorption; Iodine-131; Iodine sorbents; Sorption-filtering materials;
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