内陆厂址压水堆核电厂液态流出物复用研究

摘要/Abstract

摘要： 实现液态流出物在核电厂的复用,进而减少液态流出物向环境的排放,不仅对于保护水资源环境具有重要意义,而且对于满足能源发展规划和厂址选址的主要安全要求、但受环境水体条件限制液态流出物排放的内陆核电厂址,可能将是一种必须的选择。本文基于压水堆核电厂设计及运行经验,研究液态流出物复用的可行性。结果表明,液态流出物中的洗衣废水在热洗衣房循环利用,地面排水作为乏燃料水池补水复用于反应堆换料水池和乏燃料水池冷却和处理系统具备可行性;结合压水堆核电厂实际运行经验,复用后双机组每年可减少液态流出物向环境排放达8 400 m³,占液态流出物总量的51.8%;除氚、C-14外核素排放减少量4.8×10⁵ Bq,占液态流出物除氚、C-14外核素总量的36.9 %。

关键词: 压水堆核电厂, 液态流出物, 复用, 内陆厂址

Abstract: Reuse of liquid effluents in inland nuclear power plants (NPPs) and discharge reduction of liquid effluents to environment is an effective way to protect water resources, and it is a necessary choice for inland NPPs to meet energy development plan and major safety requirements of site selection. The reusing feasibility of liquid effluent is studied based on design and operation experiences of NPPs. The results show that the recycling of treated laundry liquid in hot laundry and reusing of floor drains in reactor cavity and spent fuel pit cooling system are practicable, and can reduce the discharge of liquid effluents to environment by 8 400 m³ (Two units per year) accounting for the reduction of 51.8% of its total amount, and the reduced discharge of radioactivity in liquid effluents to environment by 4.8×10⁵ Bq accounting for the reduction of 36.9% of its total radioisotope amount.

Key words: pressurized water reactor plant, liquid effluent, reuse, inland site

中图分类号:

TL941

叶欣楠, 范雯雯, 王艺霖, 高瑞发, 张志银. 内陆厂址压水堆核电厂液态流出物复用研究[J]. 辐射防护, 2019, 39(6): 502-509.

YE Xinnan, FAN Wenwen, WANG Yilin, GAO Ruifa, ZHANG Zhiyin. Study on reuse of liquid effluents in inland pressurized water reactor plants[J]. RADIATION PROTECTION, 2019, 39(6): 502-509.

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