Study on the adsorption performance of Eu(III) in nitric acid medium by TODGA-C resin

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发表日期：

2024年10月4日

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Xuebin Wang,
Guoshu Mao,
Shengjie Yu,
Zhihai Fu,
Yuanzhen Yue,
Shengdong Zhang,
Youqian Ding,
Kun Huang,
Xian Zhang,
Xiaoyi Sun

摘要

Responding to the need for radioactive waste disposal, the static and dynamic adsorption of Eu³⁺ on TODGA-C resin in HNO₃ was investigated. The findings indicated that the adsorption of Eu³⁺ on TODGA-C adheres to the quasi-second-order kinetic model. Additionally, the distribution coefficient for Eu³⁺ adsorption on TODGA-C reaches 10⁵ mL/g in 4 mol/L HNO₃. Under the conditions of 3.5 mol/L HNO₃, a flow rate of 3.6 mL/min, and an initial Eu³⁺ concentration of 10 mg/L, the Thomas rate constant was found to be 1.2 mL/(mg·min), with a dynamic saturation capacity of 15 mg/mL.