펜톤시약을 이용한 이온교환수지의 직접분해

The Direct Dissolution of Ion-Exchange Resin by Fenton's Reagent

Kil-Jeong Kim, Jong-Sik Shon, Woo-Seog Ryu

Abstract

Fenton's Reagent is applied to directly dissolve the cation-exchange resin, IRN-77. The characteristics of the experimental procedure is to dry the resin first and solution is completely absorbed into the resin, and then is introduced later for an effective reaction between the reagents within the resin. An a characteristic of the dissolution, the lag time is needed for about 1 hour until the main reaction is occurred, which was more affected with the less concentration of and the less initial dose of . The dose of was equally divided into the early stage and the later stage after the initial reaction to provide an effective and safe reaction condition. The optimum conditions is appeared that the concentration of is 0.9M and the dose of 15% solution is 6-7 volume for the dissolution of unit weight of IRN-77. The effect of the heating on the lag time was checked and the time could be reduced within 5 minutes at , which is a relatively low temperature. The large amount of the resin, 5g and 10g, was also completely decomposed by increasing the dose of to 9-10 volume ratio.

Key Words : Ion-exchange resin, IRN-77, Dissolution, Fenton's reagent, FeSO4, H2O2, 이온교환수지, IRN-77, 분해, 펜톤시약, FeSO4, H2O2

Reference

JNFCWT

Online Submission

Korean Radioactive
Waste Society (KRS)

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