Sorption of I2 and CH3
131I on ion-exchange materials from aqueous solutions at 20°C |
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Authors: | S A Kulyukhin L V Mizina I A Rumer E P Krasavina |
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Affiliation: | (1) Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia |
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Abstract: | Sorption of I2 and CH3 131I from aqueous solutions at 20°C on the materials obtained by modification of KU-2 cation-exchange resin was studied. It was found that these materials are able to absorb I2 both from distilled water and from a solution whose composition corresponds to the composition of aqueous coolant of the primary circuit of NPPs equipped with reactors of the WWER type, with the distribution coefficients K d higher than 103 ml g?1 at the ratio V/m = 100 ml g?1. Practically complete absorption of I2 (>95%) is reached in 15 min. It was shown that AV-18 anion-exchange resin extracts CH3 131 I from aqueous solution with a distribution coefficient K d exceeding 300 ml mg?1 at the ratio V/m = 100 ml g?1. |
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