膨润土环境修复材料的制备、表征及在废水处理中的应用

以新疆夏子街钠基膨润土制备环境修复材料并应用于废水处理。FTIR（红外光谱）分析结果表明，改性后有机季铵盐已经插层进入蒙脱石层间。XRD（X射线衍射）结果表明，改性后蒙脱石层间距由1．227nm增至3．476nm。当pH=4、膨润土环境修复材料用量为6g／L、搅拌时间30min时，其对城市生活污水化学耗氧量COD的去除率达到80％以上。当pH=8、搅拌时间15min、膨润土环境修复材料用量为60g／L时，对炼油碱渣废液中挥发酚的去除率达到94．21％。

Preparation and Characterization of Bentonite Enviromental Rehabilitation Material and Its Application to Waste Water Treatment

With sodium based bentonnites of Xiazijie formation in Xinjiang, me enviromental rehabilitation material was prepared and applied to the treatment of waste water. The FTIR spectrum showed intercalation of organic reagents into the layers of montmorillonite after modification. The spacing of montmorillonite layers was observed to increase from 1. 227 nm to 3. 476 nm by XRD. When the adsorption conditions were pH=4, the amount of bentonite environmental rehabilitation material 6 g/L, stirring time 10 min, the removal percentage of COD in municipal sewage was over 80%. When the adsorption conditions were pH = 8, the amount of bentonite environmental rehabilitation material 60 g/L, stirring time 15 min, the removal percentage of volatile phenol in oil refinery alkali sludge waste water reached 94.21%.