凹凸棒复合滤料去除水中Cr(Ⅵ)试验研究  

Experimental Investigation of Removal of Chromium (Ⅵ) by Attapulgite Composite Filter

作　　者：杨铠诚[1] 王郑[2] 缪伟[2] 刘璐[1] 申明杨[2] 芦霞[2] 孙海[2] 

机构地区：[1]南京林业大学南方学院,江苏南京210037 [2]南京林业大学土木工程学院,江苏南京210037

出　　处：《环境科学与管理》2010年第10期46-48,86,共4页Environmental Science and Management

基　　金：南京林业大学2009年大学生科技创新项目;编号:200973

摘　　要：通过静态和动态吸附实验,研究了凹凸棒复合滤料对水中Cr(Ⅵ)的去除效果。静态实验结果表明,在实验范围内,凹凸棒复合滤料对Cr(Ⅵ)的吸附可以用Langmuir和Freundlich吸附等温方程来描述,但更符合Freundlich方程,相关系数为0.989 2;动态实验结果表明,随着pH值、水力负荷和进水浓度的增加,凹凸棒复合滤料对Cr(Ⅵ)的吸附率呈下降趋势。The text studied the removal effect of Chromium （Ⅵ） with attapulgite composite filter by static and dynamic adsorption experiment.The results of static adsorption experiment showed that the adsorption behaviour could be described by Freundlich and Langmuir equations,but better fitted by Freundlich equation,with the correlation coefficients 0.989 2.Additionally,the results of dynamic adsorption experiment showed that with increase of pH invalue,hydraulic load and influent concentration,the adsorption of Chromium （Ⅵ） by attapulgite composite filter appeared decreasing trend.

关 键 词：凹凸棒复合滤料 去除 Cr(Ⅵ) 试验研究 

分 类 号：X703.1[环境科学与工程—环境工程]