四川环境2017，Vol.36Issue(6)：1-7,7.
重金属汞在土壤中的吸附解吸特性研究
Research on Adsorption and Desorption Characteristics of Mercury in Soil
王磊 1胡超超 2李一夫 1詹欣源2
作者信息
- 1. 重庆大学煤矿灾害动力学与控制国家重点实验室,重庆400044
- 2. 重庆大学资源及环境科学学院,重庆400044
- 折叠
摘要
Abstract
Batch equilibrium method was applied to fully understand characteristics of adsorption and desorption of mercury in soil collected from background area surrounding a company with mercury pollution in Xiushan region,Chongqing.The isothermal adsorption and desorption process and kinetics of adsorption were studied.The results showed that the Langmuir model fits well with the isothermal adsorption of mercury in soil,the correlation coefficient is 0.999 2 and the saturated adsorption capacity is 863.62mg/kg.The Freundlich model could better fit the desorption process of mercury,the correlation coefficient is 0.981 1 and the maximum desorption capacity is 16.840 7mg/kg.The desorption rate of mercury in soil was relatively low,with maximum desorption rate of 3.65％.The simulation of Elovich model and double-constant model on kinetics of adsorption of mercury in soil reached the significant level,with correlation coefficient of 0.893 5 and 0.837 0,respectively.关键词
土壤/汞/吸附解吸热力学/吸附动力学Key words
Soil/mercury/adsorption-desorption thermodynamics/adsorption kinetics分类
资源环境引用本文复制引用
王磊,胡超超,李一夫,詹欣源..重金属汞在土壤中的吸附解吸特性研究[J].四川环境,2017,36(6):1-7,7.
