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目的探讨核燃料后处理厂各种碘吸附材料的吸附性能与影响因素的关系。方法通过对国内外近年来在去除后处理厂溶解废气中放射性碘的研究与应用情况进行分析,给出今后研究方向。结果镀银多孔固体材料吸附技术应用较广,且都具有良好的除碘性能。此外,镀银丝光沸石在线老化后仍可再生,镀银硅胶吸附碘后能直接转化为放射性固体废物而被长期储存。结论由于银的价格较高,无银吸附剂及有机多孔吸附材料经开发后将更具有工程应用前景。
Objective To investigate the relationship between the adsorption capacity of various iodine adsorbents and its influencing factors in nuclear fuel reprocessing plant. Methods The research and application of radioactive iodine in the dissolved waste gas from the reprocessing plant in recent years at home and abroad were analyzed, and the future research directions were given. Results Silver porous solid material adsorption technology is widely used, and have good iodine removal performance. In addition, the silver-modified mordenite can be regenerated online aging, silvered silica adsorbed iodine can be directly converted into radioactive solid waste and long-term storage. Conclusion Due to the high price of silver, non-silver adsorbent and organic porous adsorbent material will be more promising for engineering applications.