摘要:
Iron-based materials have attracted much attention in water treatment because of excellent ability to treat pollutants. In this study, self-made iron-carbon micro-electrolysis packing (IMP) was introduced to treat uranium-bearing wastewater (UBW). The effects of the IMP dosage, initial pH of solution and initial U(VI) concentration was investigated. The comparison of material adsorption performance and repeated desorption experiments were also accomplished under the optimum conditions. The mechanism of treating UBW by IMP was revealed by studying the change of IMP's surface properties characterized before and after adsorption by Scanning Electron Microscope (SEM), Energy-Dispersive X-ray Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Mossbauer spectra (MS). Research results demonstrated that IMP is suitable for the treatment of UBW with low concentration at acid condition (pH < 5). SEM results indicated that uranium was deposited on the surface of IMP in the form of tidy fine particles. The most important reason for uranium removal was determined as the reduction of soluble U(VI) to insoluble U(IV) by IMP. The advantages of IMP for UBW treatment were verified with rapidity, high efficiency, and durability. Therefore, IMP could be considered as a positive material for uranium removal from UBW.
作者机构:
[陈方; 刘永] School of Resource Environment and Safety Engineering, University of South China, Hengyang, Hunan Province 421001, China;Laboratory of Protein Structure and Function, University of South China, Hengyang, Hunan Province 421001, China;School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan Province 421001, China;[肖方竹] School of Public Health, University of South China, Hengyang, Hunan Province 421001, China;[张康] School of Resource Environment and Safety Engineering, University of South China, Hengyang, Hunan Province 421001, China<&wdkj&>Laboratory of Protein Structure and Function, University of South China, Hengyang, Hunan Province 421001, China
通讯机构:
School of Resource Environment and Safety Engineering, University of South China, Hengyang, Hunan Province, China
作者机构:
[许玉历; 王成; 罗佳琦; 彭国文] School of Chemistry and Chemical Engineering, University of South China, Hengyang;421001, China;[张康; 刘永] School of Resources Environment and Safety Engineering, University of South China, Hengyang;[肖方竹] School of Public Health, University of South China, Hengyang;Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment, University of South China, Hengyang
作者机构:
南华大学资源环境与安全工程学院, 湖南, 衡阳, 421001;湖南省铀尾矿库退役治理技术工程技术研究中心, 湖南省铀尾矿库退役治理技术工程技术研究中心, 湖南, 衡阳, 421001;铀矿冶放射性控制技术湖南省工程研究中心, 铀矿冶放射性控制技术湖南省工程研究中心, 湖南, 衡阳, 421001;[徐正华] Hunan Province Engineering Technology Research Centre of Uranium Tailings Treatment Technology, Hunan, Hengyang, 421001, China;[洪昌寿; 刘艳; 袁劲帆; 章求才] School of Resource, Environment and Safety Engineering, University of South China, Hunan, Hengyang, 421001, China, Hunan Province Engineering Technology Research Centre of Uranium Tailings Treatment Technology, Hunan, Hengyang, 421001, China, Hunan Province Engineering Research Centre of Radioactive Control Technology in Uranium Mining and Metallurgy, Hunan, Hengyang, 421001, China
通讯机构:
[Liu, Y.] S;School of Resource, Hunan, China
作者机构:
[余修武; 肖人榕; 刘永; 郭倩; 余昊] School of Resource and Environment and Safety Engineering, University of South China, Hengyang;Hunan;421001, China;Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment, Hengyang;Hunan Province Engineering Research Center of Radioactive Control Technology in Uranium Mining and Metallurgy, Hengyang
期刊:
北京邮电大学学报,2019年42(4):32-37 and 75 ISSN:1007-5321
作者机构:
[余修武; 余昊; 刘永; 肖人榕; 李莹] School of Resource & Environment and Safety Engineering, University of South China, Hengyang;Hunan;421001, China;[余修武; 余昊; 刘永; 肖人榕; 李莹] Hunan;[余修武; 余昊; 刘永; 肖人榕; 李莹] 421001, China