关键词: 膨润土;吸附;解吸;再生

Abstract: Bentonite showes good performance on adsorption of heavy metals and other pollutions .But it becomes hazardous solid waste after saturation adsorption and its treatment become a difficult problem .It will take great economic value to study the regeneration recycling and provide a useful reference for its efficient use .Bentonite's regeneration methods at home and aboard after it adsorbed pollutants in recent years were summarized .Bentonite's regeneration methods is still in the exploration stage , the regeneration mechanism study of adsorbent is less , resourcelization of desorption pollutants reported rarely , it still needs lots of intensive and system research working for bentonite after it adsorbed pollutants .

Key words: bentonite;adsorption;desorption;regeneration