不同染料化合物在河流底泥上的吸附规律  

Adsorption Properties of Dye Compounds on the Sediments in Qinghe

作　　者：刘兴民[1] 刘瑞霞[1] 汤鸿霄[1] 苏永渤[2] 

机构地区：[1]中国科学院生态环境研究中心环境水化学国家重点实验室,北京100085 [2]东北大学化学系,沈阳110006

出　　处：《环境科学》2002年第1期45-49,共5页Environmental Science

基　　金：国家自然科学基金资助项目 (2 0 0 370 10 2 96 370 10 )

摘　　要：采用静态吸附法研究北京清河底泥对染料化合物的吸附行为 ,并探讨了 pH值 ,离子强度 ,温度等因素对吸附的影响 ,测定了 6种染料的吸附等温线 .结果表明 ,pH值、离子强度是影响吸附的主要因素 ,温度升高使吸附量增加 ,6种染料在底泥上的吸附都符合Freundlich方程 .吸附动力学研究表明 ,吸附分为快速吸附 (小于 1h)和慢吸附 ( 1 2h以上 )The adsorption properties of six kinds of dyes compounds on the sediments in Qinghe were studied through batch technique. The influences of pH, ion strength and temperature on adsorption as well as the adsorption isotherms were discussed and determined. It was shown that pH value and ion strength were the main effect factors on the adsorption, and the adsorption percentage increased with the temperature increase. The adsorption of these dye compounds on the sediment exhibited Freundlich adsorption behavior. The dynamic adsorption indicated that the adsorption process was divided into two steps: fast adsorption (less than 1 hours) and slow adsorption (more than 12 hours).

关 键 词：染料 底泥 吸附规律 影响因素 河流 废水处理 废水监测 

分 类 号：X522[环境科学与工程—环境工程] X832