Removal of hexavalent chromium in soil by lignin-based weakly acidic cation exchange resin

作     者：Nawei Chen Guo Qiu Chongpin Huang Li Liu Guangchao Li Biaohua Chen 

作者机构：State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical TechnologyBeijing 100029China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2019年第27卷第10期

页      面：2544-2550页

核心收录：

学科分类：12[管理学] 082803[工学-农业生物环境与能源工程] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0710[理学-生物学] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 0828[工学-农业工程] 0703[理学-化学] 120405[管理学-土地资源管理] 

基　　金：Supported by the National Natural Science Foundation of China(21476021) 

主　　题：Lignin Cr(VI) Remediation Soil 

摘      要：The adsorption of Cr(VI)from soil onto lignin-based weakly acidic cation exchange resin(LBR)has been *** is a three-dimensional amorphous polymer composed of methoxylated phenylpropane *** unique structure and chemical properties render the lignin suitable for the remediation of hexavalent chromium in the *** column leaching experiments were conducted to optimize the adsorption *** effects of contact time,p H,adsorbent dosage and temperature on the adsorption of Cr(VI)onto the LBR have been *** data were then correlated with Freundlich and Langmuir *** Langmuir isotherm model fits the experimental data better than the Freundlich *** was found that the LBR has a high adsorption capability for Cr(VI)(3.95 mg·g-1)with a removal rate of 91.9%.Thus,LBR can serve as a good absorbent for the reduction of the concentration of Cr(VI)in soil.