应用化学2019，Vol.36Issue(1)：41-50,10.DOI:10.11944/j.issn.1000-0518.2019.01.180033
离子交换树脂去除模拟放射性废液中的铯
Removal of Cesium by Ion Exchange Resins in Simulated Radioactive Wastewater
摘要
Abstract
Radioactive wastewater generated from nuclear power plants is a complex mixture, in which137Cs, 90Sr and60Co are main treatment targets in the radioactive wastewater.In this study, simulated radioactive wastewater was used to investigate the adsorption performance of strong acidic cationic resin IRN97 on Cs removal in the aspects of ion exchange isotherms, kinetic properties and penetration behavior.Meanwhile, the effects of boron and other nuclides on Cs+were studied as well.The results show that high concentration boron can reduce the adsorption capacity of Cs+.Compared with Sr2+and Co2+, Cs+has a higher exchange rate but a lower selectivity.Therefore, the adsorption capacity of Sr2+and Co2+is larger than that of Cs+.Increasing the feed concentration of Cs+can enhance the resin utilization factor in the fixed bed adsorption process.关键词
低放废液处理/离子交换树脂/铯离子/硼酸/共存核素离子Key words
low-level waste water disposal/ion exchange resin/cesium ions/boric acid/co-existing nuclear ions分类
化学化工引用本文复制引用
陈思璠,尉继英,赵璇..离子交换树脂去除模拟放射性废液中的铯[J].应用化学,2019,36(1):41-50,10.基金项目
国家自然科学基金 (U1332101) 资助 （U1332101）
