摘要
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1.227 nm增至3.476 nm。当pH=4、膨润土环境修复材料用量为6 g/L、搅拌时间30 min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15 min、膨润土环境修复材料用量为60 g/L时,对炼油碱渣废液中挥发酚的去除率达到94.21%。
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%.
出处
《化工进展》
CAS
CSCD
北大核心
2005年第11期1282-1286,共5页
Chemical Industry and Engineering Progress
基金
新疆维吾尔自治区2003年科技攻关和重点科技项目(No.200332108)
关键词
膨润土环境修复材料
制备
吸附
COD
挥发酚
bentonite enviromental rehabilitation material
preparation
adsorption
COD
volatile phenol
