期刊论文

Experimental Study on Decontamination of the Surface Radioactivity of Uranium Mining Equipment by the Synergy of Ultrasonic and Chemical Methods

中文

南华大学学报(自然科学版)

1673-0062

2019

33

4

1-5

10.19431/j.cnki.1673-0062.2019.04.001

湖南省自然科学基金资助项目（2017JJ4010）；

本校为第一机构

核设施中的设备在运行过程中会受到不同程度的放射性污染,因此,需要对污染的设备进行去污处理。采用超声波与化学方法协同去除聚氯乙烯(PVC)板、有机玻璃、不锈钢和橡胶等几种核设施常用材质表面放射性污染,并考察了去污时间、硝酸质量分数、清洗温度和有无超声波辅助等因素对去污效果的影响,研究结果表明:延长去污时间、增加硝酸质量分数、提高清洗温度和超声波辅助均能有效提高去污效果,该结果对于核设施表面放射性污染的去污具有重要的指导意义。

Equipment of nuclear facilities are subject to different levels of radioactive contamination during operation.Therefore,the decontamination treatment of the contaminated equipment is required.In the present work,ultrasonic and chemical methods are employed to jointly remove the radioactive contamination on the surface of PVC,plexiglass,stainless steel and rubber.These materials are commonly used in nuclear facilities.The results showed that extended decontamination time,increased nitric acid concentration,raised cleaning temperature and ultrasonic assisted can effectively provide decontaminati...