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Dissolution and Degradation of Spent Radioactive Cation Exchange Resin by Fenton Oxidation Combining Microwave

Jiangbo Li1,2, Lielin Wang1,2,*, Hua Xie1,2, Xiaoyu Li1,2, Zhiqiang Feng1,2, Wenxiu Zhang1,2

1 Fundamental Science on Nuclear Waste and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, China
2 National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China

* Corresponding Author: Lielin Wang. Email: email

Energy Engineering 2020, 117(3), 129-142. https://doi.org/10.32604/EE.2020.010336

Abstract

This study introduced a significantly effective approach called the microwave-enhanced Fenton method to degrade spent radioactive cation exchange resin. Compared with the Fenton (99% after 180 min) and photo-Fenton (90% after 198 min) reactions, this unique microwave-enhanced Fenton reaction has the highest degradation rate for spent radioactive cation exchange resin degradation (98.55% after 60 min). Carbon dioxide, sulfate and small molecular compounds were produced in the degradation of cation exchange resin, as determined by XRD and FT-IR. A model for the microwave-enhanced Fenton degradation mechanism of cation exchange resin was constructed. Microwaves were implemented to boost the concentration of hydroxyl radicals in the Fenton reaction so that the cation resin infiltrated and formed a channel to facilitate entrance of hydroxyl groups into the interior of the resin. This paper provides a method for accelerating the treatment of spent radioactive ion exchange resin, which could exert a signifi- cant influence on the degradation pathway for radioactive organic matter.

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APA Style
Li, J., Wang, L., Xie, H., Li, X., Feng, Z. et al. (2020). Dissolution and degradation of spent radioactive cation exchange resin by fenton oxidation combining microwave. Energy Engineering, 117(3), 129-142. https://doi.org/10.32604/EE.2020.010336
Vancouver Style
Li J, Wang L, Xie H, Li X, Feng Z, Zhang W. Dissolution and degradation of spent radioactive cation exchange resin by fenton oxidation combining microwave. Energ Eng. 2020;117(3):129-142 https://doi.org/10.32604/EE.2020.010336
IEEE Style
J. Li, L. Wang, H. Xie, X. Li, Z. Feng, and W. Zhang "Dissolution and Degradation of Spent Radioactive Cation Exchange Resin by Fenton Oxidation Combining Microwave," Energ. Eng., vol. 117, no. 3, pp. 129-142. 2020. https://doi.org/10.32604/EE.2020.010336



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