文章基本信息

标题：Biosorption Isotherm for of Cu(II) and Zn(II) onto Calcined Limpet Shells as a New Biosorbent Ions from Aqueous Solutions: Comparison of Linear and Non-Linear Methods
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作者：Rachid Slimani ; Imane El Ouahabi ; Imane Hachoumi 等
期刊名称：International Journal of Environmental Monitoring and Analysis
印刷版ISSN：2328-7659
电子版ISSN：2328-7667
出版年度：2014
卷号：2
期号：6-1
页码：48-57
DOI：10.11648/j.ijema.s.2014020601.17
语种：English
出版社：Science Publishing Group
摘要：The ability of calcined limpet shells (CLS), to remove Cu(II) and Zn(II) from effluent solution by biosorption has been studied. All the studies were conducted by a batch method to determine equilibrium and kinetic studies. The effects of contact time, CLS dose, pH and temperature were studied for the biosorption of Cu(II) and Zn(II) on CLS. Biosorption kinetics data were tested using pseudo-first-order and pseudo-second-order models. Kinetic studies showed that the biosorption followed a pseudo-second-order reaction. From thermodynamic studies, it was seen that the biosorption was spontaneous and endothermic. Equilibrium biosorption isotherms were measured for the single component system and the experimental data were analyzed by using Langmuir and Freundlich isotherm equations, to determine the best-fit isotherm for each system, both linear and non-linear regressions were carried out.
关键词：Calcined Limpet Shells; Biosorption; Cu(II); Zn(II); Non-Linear Regressions; Isotherms