超声波改性OTMAC-凹凸棒土吸附苯酚  

STUDY ON THE ADSORPTION OF PHENOL ON OTMAC-ATTAPULGITE

作　　者：黄健花[1] 王兴国[1] 金青哲[1] 刘元法[1] 王颖[1] 

机构地区：[1]江南大学食品学院,江苏无锡214036

出　　处：《水处理技术》2005年第9期61-64,共4页Technology of Water Treatment

基　　金：国家自然科学基金项目(20376028)

摘　　要：采用超声波技术,对凹凸棒土进行十八烷基三甲基氯化铵改性,研究改性凹凸棒土对苯酚吸附的工艺条件。以苯酚去除率为指标,探讨了振荡时间、温度、速度、凹凸棒土用量对苯酚去除效果的影响,并且通过正交实验得出了吸附苯酚的最优化工艺条件为:振荡时间60mins,粘土用量2.5g,振荡温度25℃,振荡速度140r/min。该条件下,苯酚去除率达60.4%。通过FTIR分析和吸附等温线的绘制探讨了OTMAC-凹凸棒土的改性效果以及对苯酚的吸附机制。The technical conditions of phenol absorbed on attapulgite with octodecyl trimethyl ammonium chloride （OTMAC） modified by ultrasonic method were studied. The effect of time, temperature, oscillating velocity on phenol removal and the quantity of the modified attapulgite added was discussed. The results showed that the removal rate could reach to 60.4% under the optimum conditions： the time of 60min, 2.5g the quantity of the modified attapulgite added, the temperature of 25℃ and the oscillating velocity of 140r/min. And the mechanism of adsorption was discussed.

关 键 词：超声波 凹凸棒土 十八烷基三甲基氯化铵 吸附 苯酚去除率 

分 类 号：X703.5[环境科学与工程—环境工程]