Adsorption of 2-naphthalenesulfonic acid/sulfuric acid/sulfurous acid from aqueous solution by iron-impregnated weakly basic resin：Equilibrium and model  

作　　者：Changhai Li Dongmei Jia Changhai Li;Dongmei Jia(Department of Chemical Engineering Binzhou University, Binzhou 256603, China;Research Center of Chemical Engineering and Technology, Binzhou University, Binzhou 256603, China)

机构地区：[1]Department of Chemical Engineering Binzhou University, Binzhou 256603, China [2]Research Center of Chemical Engineering and Technology, Binzhou University, Binzhou 256603, China

出　　处：《Chinese Journal of Chemical Engineering》2016年第11期1522-1526,共5页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.21276027);the Higher Educational Science and Technology Program of Shandong Province,China(No.J14LC05)

摘　　要：Commercial grade weakly basic resin D301 was impregnated with iron through a simple method using ferric chloride. Experiments for single, bisolute and trinary competitive adsorption were carried out to investigate the adsorption behavior of 2-naphthalenesulfonic acid(NSA), sulfuric acid and sulfurous acid from their solution at 298 K onto the novel hybrid iron impregnated D301(Fe-D301). Adsorption affinity of NSA on Fe-D301 was found to be much higher than that of sulfuric acid, while adsorption affinity of sulfuric acid was slightly higher than that of sulfurous acid. The data of single-solute adsorption were fitted to the Langmuir model and the Freundlich adsorption model. The non-ideal competitive adsorbed model coupled with the single-solute adsorption models were used to predict the bisolute and trinary-solute competitive adsorption equilibria. The NICM coupled with the Langmuir model yields the favorable representation of the bisolute and trinary-solute competitive adsorption behavior.Commercial grade weakly basic resin D301 was impregnated with iron through a simple method using ferric chloride. Experiments for single, bisolute and trinary competitive adsorption were carried out to investigate the adsorption behavior of 2-naphthalenesulfonic acid（NSA）, sulfuric acid and sulfurous acid from their solution at 298 K onto the novel hybrid iron impregnated D301（Fe-D301）. Adsorption affinity of NSA on Fe-D301 was found to be much higher than that of sulfuric acid, while adsorption affinity of sulfuric acid was slightly higher than that of sulfurous acid. The data of single-solute adsorption were fitted to the Langmuir model and the Freundlich adsorption model. The non-ideal competitive adsorbed model coupled with the single-solute adsorption models were used to predict the bisolute and trinary-solute competitive adsorption equilibria. The NICM coupled with the Langmuir model yields the favorable representation of the bisolute and trinary-solute competitive adsorption behavior.

关 键 词：2-naphthalenesulfonic acid Hybrid iron impregnated D301 Adsorption Non-ideal competitive adsorbed model Model Equilibrium 

分 类 号：X703[环境科学与工程—环境工程] TQ425.23[化学工程]