阳离子桃红FG在清河底泥上的吸附行为研究  

Adsorption of cationic pink FG on the sediments of Qinghe River

作　　者：刘兴民[1] 刘瑞霞[1] 汤鸿霄[1] 苏永渤[2] 

机构地区：[1]中科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：《环境科学学报》2001年第S1期97-100,共4页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金 (2 0 0 370 10 ;2 99770 2 7)资助项目

摘　　要：采用静态吸附法研究了北京清河底泥对阳离子桃红FG的吸附行为 ,考察了 pH值、离子强度、Ca2 + 含量和底泥中有机质对吸附的影响 ,测定了其吸附等温线 .结果表明 ,阳离子桃红FG在底泥上的吸附行为基本符合Freundlich吸附等温式 ,提高溶液pH值、降低离子强度有利于染料在底泥上的吸附 .Ca2 + 离子的加入抑制了染料的吸附 ,该染料与Ca2 + 存在竞争吸附现象 .The adsorption properties of cationic pink FG on the sediments in Qinghe River were studied through batch technique. The adsorption isotherms and the parameters controlling the sorption including solution pH and ion strength, as well as the influence of organic carbon and Ca 2+ ion on the adsorption are evaluated. The sorption data are fitted to Freundlich equation. With increasing pH value and decreasing ion strength, the slightly increasing sorption for Cationic Pink FG is observed. The addition of ...

关 键 词：阳离子桃红FG 底泥 吸附 

分 类 号：X142[环境科学与工程—环境科学]