不同吸附材料对废水中Co^(2+)的去除研究  

Study on the removal of Co^(2+) in waste water by different adsorption materials

作　　者：张惠炜 何小平[1] 刘钰森 陈怡志 张鹏 林铭章[2] ZHANG Huiwei;HE Xiaoping;LIU Yusen;CHEN Yizhi;ZHANG Peng;LIN Mingzhang(Daya Bay Nuclear Power Operations and Management Co.Ltd.,Guangdong Shenzhen 518124;School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230027)

机构地区：[1]大亚湾核电运营管理有限责任公司,广东深圳518124 [2]中国科学技术大学核科学技术学院,合肥230027

出　　处：《辐射防护》2025年第2期108-118,共11页Radiation Protection

基　　金：国家自然科学基金(22276180)。

摘　　要：放射性钴(Co)是核电站一回路中产生的放射性核素中的主要核素,在对一回路管道去污后会转移到去污液中。通过调研水中Co^(2+)的吸附材料,对不同吸附材料的吸附性能进行比较分析,明确了不同吸附材料的特点,为废水中Co^(2+)的吸附材料研究提供依据。结果表明,矿物和生物吸附剂吸附容量较小,金属氧化物在酸性环境下未表现出好的吸附性能,离子交换树脂的吸附速率较慢,活性炭虽兼具快吸附速率和高吸附容量,但是在酸性环境下未能表现出好的吸附性能,其他碳基材料的研究尚处于实验室阶段。针对以上问题,建议使用强稳定性的无机纳米材料氮化硼和氧化石墨烯为基材合成具有多级孔结构的材料,并在其基础上进行功能化改性,以合成在辐射或强酸等严苛条件下仍具有高吸附性能的吸附材料。Radioactive cobalt(Co)is the main nuclide among the radioactive nuclides produced in the primary loop of nuclear power plants and it will be transferred to the decontamination liquid after the decontamination of the primary loop pipeline.By investigating the adsorption materials of Co^(2+),the adsorption effect of different adsorption materials was compared and analyzed,and the performance of different adsorption materials was clarified,which provided a basis for the research of absorption materials for Co^(2+)in waste water.The results showed that:the adsorption capacity of minerals and biological adsorbents was small;metal oxides did not show adsorption performance under acidic conditions;the adsorption rate of ion exchange resin was slow;activated carbon had both fast adsorption rate and high adsorption,but it could not show good adsorption performance under acidic conditions,and the research of other carbon materials was still in the laboratory stage.In view of the above,it is suggested to use inorganic nanometer materials with strong stability,boron nitride and graphene oxide,as the base material to synthesize materials with level pore structure,and to carry out functional modification on this basis,so as to synthesize adsorption materials with high adsorption performance under harsh conditions such as or strong acid.

关 键 词：Co^(2+) 吸附材料 吸附性能 废水 

分 类 号：TL752.2[核科学技术—辐射防护及环境保护]