RADIATION PROTECTION ›› 2019, Vol. 39 ›› Issue (3): 213-220.

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Practice and research on minimization of radioactivewaste amounts in Qinshan Nuclear Power Plant

YU Dawan1, XU Hongming1, ZHOU Chenhao1, GUO Xiliang2, YU Dayu3, JIANG Chunhui3   

  1. 1.CNNP Nuclear Power Operation Management Co., Ltd., Zhejiang Haiyan 314300;
    2.China Institute for Radiation Protection, Taiyuan 030006;
    3.CNNC Sichuan Environmental Protection Co., Ltd., Sichuan Guangyuan 628000
  • Received:2018-08-15 Online:2019-05-15 Published:2019-10-29

Abstract: The practices of radioactive waste minimization in Qinshan Nuclear Power Base are introduced, including the clearance flowcharts of spent resins from steam generators and metal frameworks of ventilation filters, improvements on their cementation processes, package containers using metal drums to replace original cement drums. The development of some minimizing measures are also introduced, for example, the storage-decay method and multi-in-one drum method for wet spent filters treatment. The drum filling process with a “Sandwich” type mode and super compaction is also used to improve the utilization efficiency of packaging containers. Comparative analyses for treatment technologies of concentrates, spent resins, technological wastes, organic liquid wastes are accomplished and recommendations are provided, for example, drying compaction for concentrate wastes, steam reforming for spent resins, incineration for combustible wastes and organic liquid wastes, etc. The total waste amount is expected to reduce from 541 m3/a approximately to 94 m3/a in Qinshan Nuclear Power Base.

Key words: clearance, temporary storage decay, drying compaction, steam reforming, incineration

CLC Number: 

  • TL94