电渗析处理模拟放射性废物焚烧工艺废水的实验研究  

Experimental Study on Electrodialysis Treatment of Simulated Waste Water from Radioactive Waste Incineration System

作　　者：郑博文[1] 周连泉[1] 王培义[1] 李晓海[1] 王煦晋[1] 李达[1] 杨丽莉[1] 

机构地区：[1]中国辐射防护研究院,太原030006

出　　处：《辐射防护》2012年第4期215-221,227,共8页Radiation Protection

摘　　要：放射性废物焚烧系统在运行过程中会产生一定量的低放工艺废水。废水处理时,其所含Cl-会对蒸发设备造成腐蚀,含HCO3-对离子交换柱产生解吸作用,影响放射性核素吸附的效果。对此,研究建立了一套电渗析处理系统,进行了NaCl溶液直流脱盐实验和循环脱盐实验、阴离子选择透过性实验、模拟工艺废水的电渗析处理实验,确定了工艺流程和操作参数。结果表明:模拟废水经处理后非放射性物质含量满足国家排放标准,产生的浓缩液达到废水处理平衡浓度,符合工艺废水处理要求。Radioactive waste incineration facility produces low-level radioactive waste water in operation. While in treatment process, however, the Cl^- existed in the waste water corrodes the evaporation equipment, and the HCO3^- as well exerts negative impacts on the ion exchange process for radioactive nuclides. As for this problem, a special electrodialysis system and technical process was developed. Some experiments were carried out, including the NaC1 solution direct desalination and cycle desalination experiment, the anionic selection experiment, and the desalination experiment to the simulated waste water experiment, through which the treatment process and operation parameters were defined. Results showed that the process of electrodialysis treatment met limits on the treatment of technical waste water in terms of the concentration of nonradioactive components in desalted water, and the water balance requirement on the concentration of concentrated water.

关 键 词：放射性废物 焚烧 电渗析 废水处理 

分 类 号：X703[环境科学与工程—环境工程]