A mass transfer model for the adsorption of pesticide on coconut shell based activated carbon

被引:35
作者
Ignatowicz, K. [1 ]
机构
[1] Bialystok Tech Univ, Dept Technol Engn & Environm Protect, PL-15351 Bialystok, Poland
关键词
Activated carbon; Adsorption isotherms; Modeling adsorption; Sorption mass transfer; ISOTHERMS; SORPTION;
D O I
10.1016/j.ijheatmasstransfer.2011.07.005
中图分类号
O414.1 [热力学];
学科分类号
摘要
The adsorption isotherms of HCH on coconut shell based activated carbon type NP-5 at constant temperature have been experimentally measured. The porous properties such as, the density, BET surface area, pore size, pore volume along with pore distribution of NP-5 have been determined. The Freundlich's, Langmuir's, Temkin, Jovanovic and BETs adsorption isotherm models describe of experimental data within the acceptable error ranges. The Freundlich, Jovanovic and Langmuir models were fitting better the experimental data. The shape of these isotherms indicates that the HCH is adsorbed as a monolayer and that there is no strong competition between the pesticide molecules and water to occupy the adsorption surface sites. (C) 2011 Elsevier Ltd. All rights reserved.
引用
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页码:4931 / 4938
页数:8
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