离子交换树脂处理核电厂废液模拟试验研究

发布时间：2018-04-23 23:08

本文选题：核电厂 + 废液处理　；参考：《给水排水》2014年S1期

【摘要】：针对核电厂放射性液体废物处理系统(WLS)离子交换处理工艺设计中关注的树脂净化能力指标(去污因子),开展离子交换树脂吸附法处理模拟核电厂废液试验研究。试验选取核电厂废液中典型裂变产物和腐蚀产物离子(Cs+、Sr2+、Co2+)配制水样,模拟AP1000 WLS系统树脂床配置(阳床+混床+混床),针对不同型号树脂(交联度、物理结构)、不同床体积流速(Q/V)进行动态交换吸附试验。结果表明:3台串联树脂床在Q/V=20.0BV/h(或10.7BV/h)条件下对进水(Cs+、Co2+、Sr2+浓度均为1mg/L)的综合去污因子可达到104~105,交联度、物理结构等对树脂的净化能力影响差异不明显,在较低流速下Q/V的波动对树脂床的运行及其去污效果的稳定性造成的紊动作用不显著。
[Abstract]:Aiming at the resin purification capability index (decontamination factor) concerned in the ion exchange process design of nuclear power plant radioactive liquid waste treatment system (WLS), an experimental study on the treatment of simulated nuclear power plant waste liquid by ion exchange resin adsorption method was carried out. Water samples were prepared from typical fission products and corrosion products from waste liquid of nuclear power plant. The resin bed configuration of AP1000 WLS system was simulated. Different types of resin (crosslinking degree, crosslinking degree, crosslinking degree) were used to simulate the configuration of resin bed in AP1000 WLS system. The dynamic exchange adsorption experiments were carried out with different bed volume flow rate (Q / V). The results showed that the comprehensive decontamination factor of the three series resin beds under the condition of Q / V = 20.0BV / h (or 10.7BV / h) was 1 mg / L, and the degree of crosslinking and physical structure had no significant influence on the purification ability of the resin. The turbulence effect caused by the fluctuation of Q / V at lower velocity on the operation of resin bed and the stability of decontamination effect is not significant.
【作者单位】：上海核工程研究设计院;
【基金】：国家科技重大专项资助项目(2010ZX06002)
【分类号】：X771

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