摘要
研究了膨润土的改性方法及活化膨润土对模拟水样浊度、色度、苯酚和苯胺等的去除效果,初步探讨了改性机理。结果表明,活化膨润土较原土具有更高的离子交换能力和吸附能力,溴化十六烷基三甲铵(CTMAB) 改性膨润土综合效果最好,可使模拟水样脱色率达90%以上,苯胺去除率达80%以上,苯酚去除率达40%以上。为天然膨润土的改性及其在染化工业废水处理中的应用提供了有价值的参考依据。
The methods of modifying natural bentonite absorbent and Bentonite's modifying mechanisms have been studied in this paper.Adsorption abilities of modified bentonites to some organic compounds in water were investigated.The results show that modifiedbentonite were better than natural ones.Modifiedbentonites with cetyltrimethylammonium bromide(CTMAB) can remove 90% color 80% aniline and 40% phenol from water.This research provides valuable experimental data for modifying bentonite and applying it in treating industrial wastewater.
