Most current arsenic(As(V)) removal technologies are designed for low-As(V) wastewater. Consequently, the efficacy of treating high-As(V) wastewater with these technologies is generally unsatisfactory. Here, the Cobalt(Co)-loaded resin removal of As(V) in wastewater and its mechanism are discussed. Rapid adsorption and a slow equilibrium were achieved during the reaction, and the As(V) removal efficiency exceeded 99% within 0–30 min with an initial As(V) concentration of 100 mg/L. The adsorption capacity of the Co-loaded resin was as high as 116 mg/g. The Co-loaded resin has the best As(V) removal efficiency when the pH $=$ 8. The adsorption kinetics of the Co-loaded resin material revealed the adsorption behavior. FTIR and XPS studies showed that As(V) was removed on the Co-loaded resin material, and As(V) was primarily removal through ion exchange adsorption and chemical co-precipitation. Thus, this Co-loaded resin material provides a simple and effective means to remove As(V) from high-As(V) wastewater.

当前，大多数砷（As（V））去除技术都是针对低As（V）废水设计的。因此，用这些技术处理高As（V）废水的功效通常不能令人满意。在此，讨论了负载钴（Co）的树脂去除废水中As（V）的机理。反应过程中实现了快速吸附和缓慢的平衡，并且初始As（V）浓度为100 mg / L时，As（V）的去除效率在0-30分钟内超过99％。负载钴树脂的吸附能力高达116 mg / g。当pH值较高时，共负载树脂具有最佳的As（V）去除效率$=$8.共负载树脂材料的吸附动力学揭示了吸附行为。FTIR和XPS研究表明，在Co负载树脂材料上去除了As（V），而As（V）主要是通过离子交换吸附和化学共沉淀去除的。因此，这种共载树脂材料提供了一种简单有效的方法，可从高砷（V）废水中去除砷（V）。