期刊
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
卷 43, 期 3, 页码 386-392出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jtice.2011.11.001
关键词
Biosorption; Azure Blue; Cladosporium sp.; Kinetics
资金
- National Natural Science Foundation of China [31070105]
The biosorption of Azure Blue from aqueous solution was investigated for the first time using a new isolated Cladosporium Ch2-2. The biosorption studies were carried out under various parameters, such as initial dye concentration, pH, biosorbent dosage and different cations. High dye removal yield was achieved at pH 8, which was consistent with the pH of most of the wastewater. The maximum biosorption occurred at the pH value of 8.0 for Azure Blue. Mg2+ and EDTA had a positive effect on dye biosorption process. Equilibrium time was attained at 60 min for the dye concentrations of 30-100 mg/L. The adsorbent dosage of 0.1 g in 20 ml was found to be optimum for increased dye uptake. The Langmuir isotherm model better described the process of dye uptake than the Freundlich model. The maximum monolayer biosorption capacity of the biosorbent was 51.4 mg/g. The pseudo-second order kinetic model adequately described the kinetic data. Finally the proposed biosorbent was successfully used for the decolorization of Azure Blue in simulated wastewater conditions. The biosorption results suggested that this environmentally friendly and efficient biosorbent may be useful for the removal of basic dyes from aqueous solution. (C) 2011 Taiwan Institute of Chemical Engineers. Published by 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