改性累托石吸附处理亚甲基蓝机理研究-《武汉工程大学学报》

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Title:: Adsorption mechanism of modified rectorite adsorbing
methylene blue simulation wastewater

文章编号:: 16742869(2011)09006804

作者:: 陈云; 王营茹*; 孙家寿; 罗劼; 段颖姗; 陈佩佩; 武汉工程大学环境与城市建设学院,湖北武汉 430074

Author(s):: CHEN Yun; WANG Yingru; SUN Jiashou; LUO Jie; DUAN Yingshan; CHEN Peipei; School of Environmental and Civil Engineering, Wuhan Institute of Technology, Wuhan 430074, China

关键词:: 累托石; 吸附; 亚甲基蓝

Keywords:: rectorite; adsorption; methylene blue

分类号:: X703

DOI:: -

文献标志码:: AAdoi:10.3969/j.issn.16742869.2011.09.017

摘要:: 改性累托石用于亚甲基蓝染料废水处理更具普适性.改性累托石能较好的用Langmuir公式和Freundlich公式来描述，改性累托石的Langmuir表达为Ce/qe=0.020 96+0.015 51 Ce，Freundlich表达式为lgqe=1.695 52+0.057 03 lgCe.分别用lagergren准一级、准二级吸附速率模型、Bangham模型和Elovich模型对改性累托石吸附亚甲蓝的吸附动力学过程进行拟合.除Lagergren准一级动力学方程外，其他三种动力学方程的拟合线性系数都较高，说明这三种动力学模式都能很好的描述本试验吸附过程动力学规律.

Abstract:: It is more universal for modified rectorite used to adsorbing methylene blue. The process of adsorption can be well described by Langmuir equation and Freundilch equation. The expression of Langmuir equation is Ce/qe=0.020 96+0.015 51Ce and Freunderlich equation is lgqe=1.695 52+0057 03 lgCe. The three kinetic equation models，which are Lagergren quasisecond order kinetic equation，Bangham kinetic equation and Elovich kinetic equation all have higher coefficient of linear and could well describe the kinetics regular pattern of adsorption, except for Lagergren first order kinetic equation.

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