Comparison of linear and non-linear method in estimating the sorption isotherm parameters for safranin onto activated carbon

被引：106

作者：

Kumar, KV ^{[1
]}

Sivanesan, S ^{[1
]}

机构：

[1] Anna Univ, AC Tech, Dept Chem Engn, Madras 600025, Tamil Nadu, India

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2005年 / 123卷 / 1-3期

关键词：

sorption; safranin; activated carbon; equilibrium isotherm; linear method; non-linear method;

D O I：

10.1016/j.jhazmat.2005.03.040

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Comparison analysis of linear least square method and non-linear method for estimating the isotherm parameters was made using the experimental equilibrium data of safranin onto activated carbon at two different solution temperatures 305 and 313 K. Equilibrium data were fitted to Freundlich, Langmuir and Redlich-Peterson isotherm equations. All the three isotherm equations showed a better fit to the experimental equilibrium data. The results showed that non-linear method could be a better way to obtain the isotherm parameters. Redlich-Peterson isotherm is a special case of Langmuir isotherm when the Redlich-Peterson isotherm constant g was unity. (c) 2005 Elsevier B.V All rights reserved.

引用

页码：288 / 292

页数：5

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