Thorium affects human health and causes environmental issues. The concentration of thorium in the environment may increase due to waste that is produced from human activities like mining, rare-earth extraction, and others. If this waste is not handled properly, thorium may leak and cause water contamination. This review summarises the methods of thorium removal from wastewater. The article addresses the main features of the techniques for thorium removal by physicochemical processes such as chemical precipitation, ion exchange, adsorption, electrochemical and membrane filtration. Their advantages and limitations in the applications are evaluated. Bioadsorption and natural material are widely used in the removal of thorium. However, in the near future, the electrosorption process seems to be the most promising method to treat wastewater since it can overcome limitations of adsorption techniques with the help of electric current to have a more efficient and rapid process. It should be noted that all the techniques able to remove thorium depend on pH, temperature, the concentration of thorium and other wastewater components. In general, the technical applicability, simplicity of technique and cost-effectiveness are the key factors in selecting the most suitable treatment for removal of thorium.

ium影响人类健康并引起环境问题。由于人类活动（例如采矿，稀土提取等）产生的废物，环境中of的浓度可能会增加。如果处理不当，th可能会泄漏并造成水污染。这篇综述总结了从废水中去除or的方法。本文介绍了通过物理化学过程（例如化学沉淀，离子交换，吸附，电化学和膜过滤）去除th的技术的主要特征。评估了它们在应用中的优点和局限性。生物吸附和天然材料被广泛用于去除or。但是，在不久的将来，电吸附过程似乎是处理废水的最有前途的方法，因为它可以借助电流克服吸附技术的局限性，从而实现更高效，更快速的过程。应该注意的是，所有能够去除or的技术都取决于pH值，温度，of的浓度和其他废水成分。通常，技术适用性，技术简便性和成本效益是选择最合适的treatment去除处理方法的关键因素。