西安脉冲堆水净化系统混床废树脂的性能变化  

Performance Variation of Spent Resin in Mixed Bed From Water Purifying System of Xi'an Pulse Reactor

作　　者：李华[1] 马燕[1] 肖艳[1] 刘月恒[1] 杨永青[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《原子能科学技术》2010年第1期25-29,共5页Atomic Energy Science and Technology

摘　　要：测定了西安脉冲堆净化系统混床废阴、阳离子交换树脂的理化性能参数,分析了废阴、阳离子交换树脂发生的性能变化,并考察了不同影响因素对树脂性能变化的贡献。根据废树脂中的杂质分布情况,分析了西安脉冲堆一回路水受到的外来污染情况、反应堆结构材料的腐蚀情况。分析结果显示,混床废阴树脂已基本丧失交换能力,而废阳树脂的剩余交换能力仍较高。反应堆运行产生的辐射效应引起的树脂性能变化较小。废阴树脂交换能力的丧失归因于其交换了大量的杂质离子碳酸根和一定量的有机物。废阴树脂中其它阴离子含量很低,废阳树脂中杂质金属元素含量也很低,说明西安脉冲反应堆堆池水并未受到明显的外来污染。反应堆水池内结构材料存在一定的腐蚀。所得结果为此类反应堆净化系统的安全运行提供了重要的参考数据。Detailed physicaland chemical characteristic analysis wasperformed on the spent cation and anion resins in the mixed bed from Xi＇an Pulse Reactor water purifying system.The exchange performance variations of used resins and the contributions from different factors to the variation were discussed.Based on the obtained information of the impurities in the used resin,the contamination state of the water in the Xi＇an Pulse Reactorwater pool,the corrosion state of the structural material in the reactor was presented.The spent anion resin almost completely losses its exchange performance,while the remaining exchange capacity in the spent cation resin is still high.The radiation field from the reactor operation contributeslittle to the degradation of the performance of the resins.The exchange capacity loss of the spent anion resin is due to the exchange of its active groups into abundant carbonate and a certaint amount of organics.The impurityamount in the anion and cation exchange resins islow,which suggests（that） the water in the Xi＇an Pulse Reactorwater pool is little contaminated.A certain extent of corrosion is occurred on the structural material in the swimming pool of the reactor.The results provideimportant referential data for the operational safety of the water purifying system of similar research reactor.

关 键 词：核反应堆 净化系统 混床 离子交换树脂 

分 类 号：TQ085.4[化学工程]