核电站废树脂清洁解控问题探讨

对轻微污染的废树脂采取解控处理是核电站废物最小化工作的重要内容。在介绍近几年开展的核电站废树脂解控监测工作的基础上,对核电站目前的废树脂废物管理中存在的问题进行了总结,提出了有利于实施废树脂废物最小化的技术途径。解控后的废树脂可能采取的处置出路包括危险固体废物填埋处置和水泥窑协同处置,暂时尚不具备进行高温焚烧处置的条件。为了提高核电站这类废物最小化的实施效率,建议对不同类型放射性核素在废树脂中含量的相关性问题,对放射性核素在离子交换柱树脂中的空间分布问题,对废树脂分拣的在线监测技术以及其它类型固体废物的分拣监测问题等进行深入研究,以期在保证取样代表性的同时,减少取样量和测量工作量,提高工作效率,降低废物最小化的经济成本。

Issues on clearance of the spent resin from NPP

Clearance of slightly radioactive contaminated spent resin in an importnat work of waste minimzation for NPP.Based on the recent developments in clearance of spent resin,existing problems with spent resin management at nuclear power plants were summarized.Technical approaches for waste minimization of spent resin were proposed.Potential disposal options for spent resin are hazardous solid waste landfill disposal and coprocessing in cement kilns,when high temperature incineration disposal is currently not sufficiently approved.To improve the efficiency of minimizing such solid wastes in nuclear power plants and reduce the costs,further researches on the correlation among activity concentrations of different types of radioisotopes,spatial distribution of various radioisotopes in spent resin,on-line monitoring techniques for spent resin classification,and the classification and monitoring techniques for other solid wastes are suggested.