海水提铀材料与方法的现状与挑战

    Progress and Challenges of Materials and Methods for Uranium Extraction From Seawater

    • 摘要: 海洋占据地球面积的70%,而其中的铀含量是陆地铀矿含量的1 000多倍。随着核能发电量的增加,为保障核能的可持续发展,对非常规铀资源进行开发具有重要的意义。海水提铀作为解决陆地铀资源匮乏的有效手段,近年来受到人们的广泛关注,目前,包括膜分离、化学沉积、溶剂萃取、离子交换、还原和吸附等方法已经被应用到海水提铀中。本文重点综述近年来吸附法及无机材料、有机材料、碳材料等吸附材料和还原法中新兴的电还原技术的最新研究进展,并对这两种方法所面临的挑战进行展望。

       

      Abstract: The ocean covers 70% of the earth’s area, and the seawater uranium is more than 1000 times that of terrestrial uranium ore. In order to increase the power generation and ensure the sustainable operation of nuclear power plants, the development of unconventional uranium resources is of great significance. As an effective means to solve shortage of terrestrial uranium resources, uranium extraction from seawater has received extensive attention in recent years. At present, many methods including membrane separation, chemical deposition, solvent extraction, ion exchange, reduction and adsorption have been applied to uranium extraction from seawater. This paper focuses on the recent research progress of adsorption method used inorganic materials, organic materials, carbon materials as adsorbent, and emerging electroreduction technologies, and further discusses the challenges and opportunities of these two methods.

       

    /

    返回文章
    返回