离子交换技术去除核电厂放射性废液中痕量核素研究进展

Research Progress of Application of Ion Exchange Technology on the Removal of Trace Radionuclides from Liquid Radioactive Waste Innuclear Power Plant

介绍了离子交换技术在我国核电厂放射性废液处理系统中的应用情况;综述了离子交换技术去除水中痕量核素的研究进展,考察了溶质在离子交换剂上的吸附机理。认为当前离子交换技术去除我国核电厂放射性废液中痕量核素应进一步完善的工作,包括完善离子交换技术去除10-9级及更低含量水平的核素(如^(110)m Ag)的研究;考察离子交换技术去除痕量核素的机理,并建立一套评价和预测离子交换及与其它技术组合工艺对核电厂放射性废液中痕量核素去除效果的模型。

The applications of ion exchange （IE） technology in the liquid radioactive waste processing system of Chinese nuclear power plants were introduced. The studies on application of IE technology in the removal of trace radionuclides from water were reviewed. The mechanisms of solute adsorption to the IE media were investigated. Moreover, further studies in future were pointed out for the application of IE technology in the removal of trace radionuclides from liquid radioactive waste of nuclear power plant, These studies include： study on the IE removal efficiencies for the radionuclides in ppb and even lower level concent, especially for ＆110mAg; study on the removal mechanism of trace radionuclides from water by IE technology; and study on the evaluation model for the removal efficiency oflE and/or its hybrid techniques applied in liquid radioactive waste treatment process in nuclear power plant.