膨润土基复合材料在废水处理中的应用研究进展

膨润土储量大、分布广、物理化学特性优良，广泛应用于工业废水处理。但是天然膨润土及改性膨润土直接作为吸附剂，存在着吸附容量小、固液分离难等缺点。为弥补这些缺陷，近年来研究者以膨润土或者改性膨润土为基底制备膨润土基复合材料并将其运用到废水处理。本文综述了改性膨润土和膨润土基复合材料的制备方法，以及其在无机和有机废水处理中的应用和循环再生性能的研究进展。目的是为开发新型、高效的膨润土基复合材料及其在废水处理中的应用提供思路与方法。 

Advances in Application of (Bentonite-based) Composites in Wastewater Treatment

Bentonite is widely used in industrial wastewater treatment because of its large reserves, wide distribution and excellent physical and chemical properties. However, natural bentonite and modified bentonite are directly used as adsorbents, which have such defects as small adsorption capacity and difficult solid-liquid separation. In order to make up for these defects, (bentonite-based) composites have been prepared from bentonite or modified bentonite and applied to wastewater treatment in recent years. In this paper, the preparation methods of modified bentonite and (bentonite-based) composite materials, their application in inorganic and organic wastewater treatment and the research progress of cyclic regeneration are reviewed. The aim is to provide a new and efficient (bentonite-based) composite material and its application in wastewater treatment.