期刊
WATER AIR AND SOIL POLLUTION
卷 230, 期 2, 页码 -出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s11270-019-4097-x
关键词
Adsorption; Biosurfactant; Co; Isotherm; Kinetics; Saline soil
资金
- Canada Research Chairs (CRC) Program
- Canada Foundation for Innovation (CFI)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Rhamnolipid Inc.
Cobalt (Co) adsorption onto saline soil was investigated in this study. The effect of pH, interaction time, and initial concentration of Co on adsorption were evaluated empirically to screen the appropriate operating conditions. Three biosurfactant products (i.e., surfactin, trehalose lipids, rhamnolipid) each at two concentrations (1 and 2 critical micelle concentrations (CMCs)) were applied during Co adsorption. The adsorption kinetic models were explored and results indicated that the pseudo-second-order kinetic model fit the experimental data the best. Four isotherms, including Langmuir, Freundlich, Temkin, and Redlich-Peterson were used for regulating the Co adsorption with and without the addition of each biosurfactant. The research results show that Co has low mobility even with the existence of a biosurfactant. The findings help to better understand the adsorption behaviour of Co in saline soil so as to develop applicable remediation options.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据