凝胶去污技术的安全性探讨  

Investigation on Safety of Gel Decontamination Technology

作　　者：刘志辉[1] 王永仙[2] 张涛革[2] 宋凤丽[1] 

机构地区：[1]环境保护部核与辐射安全中心,北京100082 [2]中国辐射防护研究院,山西太原030006

出　　处：《原子能科学技术》2014年第5期944-948,共5页Atomic Energy Science and Technology

摘　　要：凝胶去污为先进、新型的放射性污染金属去污工艺,具有操作简单、去污效果好等优势,但喷涂压力高、去污剂腐蚀性强等对作业人员和设备存在安全隐患。本文结合工艺特点,分析了喷涂压力等对作业人员的影响;依据凝胶对不锈钢的腐蚀特征,提出了凝胶对喷涂设备的腐蚀情况值得深入研究。同时,论证了凝胶去污废物收集和处理中的安全问题。结果表明:喷涂作业时应加强防护,减轻飞溅和雾化对作业人员的影响;及时清洗设备,降低腐蚀影响;废液添加还原剂,消除残留去污剂的影响。Gel decontamination technology is an advanced decontamination process of metal contaminated by radionuclide . It has the advantages such as simple operation process ,high decontaminating factor ,etc .But the disadvantages are that it has high spraying pressure and is strongly corrosive ,w hich has safety risk to the operator and equipment .The effect of such factors as spraying pressure on operators was analyzed based on process feature ,and it is proposed that it be worthwhile to make further study on the corrosion of gels to spraying equipment ,taking into account corrosion feature of gels to stainless steel .Meanwhile ,the safety issue was demonstrated on collecting and handling wastes from gel decontamination process . And then , protective measures , study methods ,and solutions are put forward .The results show that protection should be strengthened during spraying to reduce the effect of splashing and fogging on work-ers ;the equipment should be cleaned in time to reduce the effect of corrosion ;and reducers should be added into waste liquid to eliminate the effect of residual detergent .

关 键 词：凝胶 去污 安全性 

分 类 号：TL944[核科学技术—辐射防护及环境保护]