期刊论文

Minimization practice and management of radioactive wastes in a uranium enrichment plant

中文

辐射防护

1000-8187

2019

39

1

61-66

南华大学双一流建设项目（2017SYL05）；

本校为第一机构

介绍了某铀浓缩厂含铀放射性废物管理现状及放射性废物最小化方面的应用实践。放射性废物分类收集,集中处置,减少放射性废物的体积及产生量是基本要求。采用5%的Na2CO3和30%H2O2混合液以及清水对放射性污染管道、阀门等进行清洗,使α表面污染≤0.4 Bq/cm2,清洗液厂内循环利用。通过除锈清洗液再利用、水压试验水再利用及容器清洗工艺优化改进等措施,单台容器平均废液产生量减少35%左右,从源头上控制了含铀废液的产生量。小容器处理工艺由湿法改为干法,废水产生量减少了90%;大容器清洗过程中,除锈液可重复利用5次,可使得除锈废液的产生量减少80%左右。提高吸附尾液循环利用比,减少了废水的产生量...

The management status and minimization practice of radioactive wastes containing uranium in a uranium enrichment plant are introduced. Categorized collection,centralized disposal,and reduction of volume and amount of radioactive wastes are their basic requirements. Radioactive contaminated pipes and valves were cleaned with a mixed solution of 5% Na_2CO_3 ,30% H_2O_2 ,and fresh water and reused in this plant to ensure that α surface contamination levels are less than 0.4 Bq /cm~2 . By means of reutilization of rust removal solution and pressur...