利用赤泥基材料去除水体污染物的研究进展

The Research Progress of Using Red Mud-Based Materials to Remove Water Pollutants

赤泥是氧化铝生产过程中产生的固体废渣,目前主要通过堆存处理,不仅占用大量土地,而且对周边环境造成严重污染。因此,对赤泥进行无害化处理和资源化利用迫在眉睫。赤泥一般呈碱性,具有比表面积、吸附性能好等优点,近年来在环境污染控制方面应用广泛。概述了赤泥的主要类型、物理化学成分和赤泥基材料的主要制备方法等,重点评述了当前利用赤泥基材料去除水体污染物的研究进展,以期为拓宽赤泥无害化和资源化利用提供依据。

Red mud is the solid waste produced in the production process of alumina. At present, it is mainly disposed by stacking, not only occupying a lot of land, but also causing serious pollution to the surrounding environment. Therefore, the harmless treatment and resource utilization of red mud is imminent. Red mud is generally alkaline, with the advantages of specific surface area and good absorption performance, which has been widely used in environmental pollution control in recent years. In this paper, the main types, physical and chemical components of red mud and the main preparation methods of red mud based materials are summarized, and the research progress of using red mud based materials to remove water pollutants is reviewed, in order to provide a basis for expanding the harmless and resource-based utilization of red mud.