芭蕉芋渣对亚甲基蓝的动态吸附研究  

Methylene Blue Removal from Aqueous Solution by Canna Edulis Kerl Residual in Fixed-bed Column

作　　者：卢玉栋[1] 叶琳[1] 吴宗华[1] 林筱璇[1] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350108

出　　处：《福建师范大学学报（自然科学版）》2011年第1期67-71,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建师范大学横向项目(DH-585);福建师范大学本科生课外科技计划项目(BKL2010-033)

摘　　要：利用芭蕉芋渣填料柱对水中亚甲基蓝(MB)进行动态吸附.探讨了初始质量浓度、床层高度、pH值等因素对穿透曲线的影响,运用数学模型对在不同层高和质量浓度下的吸附数据进行拟合.结果表明,芭蕉芋渣能有效去除水中的亚甲基蓝,随着床层高度的增高、pH的增大和初始质量浓度的减小,芭蕉芋渣填料柱对水中亚甲基蓝的吸附穿透曲线位点向右移.通过数学模型得到的速率常数、相关系数、平衡吸附量和动力学参数,能较好地描述芭蕉芋渣填料柱吸附亚甲基蓝的吸附动力学.The capability of canna edulis kerl residual to adsorb methylene blue（MB）from aqueous solution was investigated in a fixed-bed column.The effects of important parameters on breakthrough curve,such as the filler height,pH and concentrations of MB were studied.Mathematical dynamic model respectively at different filler height,different pH and different concentrations of high-layer adsorption data were applied to simulate column adsorption data and to obtain relevant parameters.The results showed that canna edulis kerl residual as an adsorbent to remove the MB was efficient.As the filler height,the pH increasing and density increasing,the breakthrough point in the breakthrough curves moved to right.The rate constants,correlation coefficients,equilibrium adsorption capacity and kinetic parameters,which were calculated through mathematical models,can be used to describe the adsorption kinetics of MB by canna edulis kerl residual well.

关 键 词：芭蕉芋渣 亚甲基蓝 动态吸附 穿透曲线 数学模型 

分 类 号：TQ424[化学工程]