Abstract: Modified bentonite is a widely used absorbent for heavy metals in wastewater treatment. The effects of different modification methods on the structure and the adsorptive ability of bentonite，as well as the application of the modified bentonite，are reviewed. Several suggestions are proposed for advanced research，according to the requirement of heavy metal removal.

摘要： 改性膨润土是近年来广受关注的重金属吸附剂。综述了焙烧、酸活化、无机、有机改性等途径对膨润土结构、吸附性能的改善效果，介绍了改性膨润土在重金属吸附处理中的应用情况。结合重金属废水处理的要求，指出了改性膨润土研究和应用中可能取得突破的几个方向。