科研实验产生的低放废水处理工艺设计.pdfVIP

第 3 8 卷 第 4 期 核 化 学 与 放 射 化 学 Vol. 38 No. 4 2016年 8 月 Journal of Nuclear and Radiochemistry Aug. 2016 科研实验产生的低放废水处理工艺设计 邓 纪 琴 ，闫玉奎 中国辐射防护研究院，山西太原030006 摘要：为使放射性科研实验产生的低放废水满足国家排放的有关规定，实现废物的最小化，减少排放量，新建 了一套低放废水的处理装置，工艺设计考虑了处理含多种核素废水的适用性、经济性、运行维修简捷性，引人 超滤膜处理的新技术，采用絮凝、超滤、离子交换相结合的间歇式处理工艺，并能实现离子交换循环处理的功 能 。装置建成后，进行稳定元素 Co 、S r：的模拟废水处理实验，结果表明，对 C o 去除率达到 99% 以上，S r 降到 检测限以下，达到了废水处理要求和国家的排放规定。 关键词：低放废水；处理工艺；絮凝沉淀；超滤；离子交换 中图分类号：X703. 1 文献标志码：A 文章编号：0253-9950(2016)04-0252-05 doi ：10. 7538/hhx. 2016. 38. 04. 0252 Design of Treatment Process for Low-Level Radioactive Wastewater Produced by Scientific Research DENG Ji-qin, YAN Yu-kui China Institute for Radiation Protection, Taiyuan 030006, China Abstract ：In order to meet the national requirements for disposal of radioactive wastewater produced by scientific research, a device was constructed for wastewater concentration and volume reduction. The applicability, cost and simplicity of maintenance were considered for designing the device, into which a new technology of ultrafiltration membrane treatment was introduced. The combination of methods of flocculation, ultrafiltration(UF) , ion exchange treatment and re-treatment was adopted. The device was tested for commissioning using stable elements of Co and Sr. The results show that the removal percentage of treatments is achieved more than 99 % for Co, and non-detectable level for Sr, in accordance with the national requirements for removal percentage of tr