期刊
DESALINATION
卷 266, 期 1-3, 页码 93-97出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2010.08.007
关键词
Red mud; CO2; Zinc; Kinetics; Langmuir isotherm; Neutralization
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi, (India)
In this study, caustic red mud was neutralized using CO2 sequestration. Batch adsorption study was conducted to investigate the ability of activated CO2-neutralized red mud (ANRM) for the adsorption of Zn (II) ions from the aqueous solutions. The experiments were carried out with respect to adsorbent dose, pH, contact time, initial Zn(II) concentrations, kinetics, Langmuir and Freundlich isotherms. The characterization of CO2 neutralized red mud and mechanisms of Zn(II) adsorption on ANRM were studied by using TG-DSC, SEM/EDX, BET, AAS and chemical methods. Adsorption kinetic studies revealed that the adsorption process followed pseudo-second-order kinetics. The adsorption data were fitted to linearly transformed Langmuir isotherm with R-2 (correlation coefficient)>0.98. (C) 2010 Elsevier B.V. All rights reserved.
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