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.
机构:
Department of Civil Engineering, Indian Institute of Technology, Roorkee, 247667, UttarakhandDepartment of Civil Engineering, Malviya National Institute of Technology, Jaipur, 302017, Rajasthan
机构:
Anna Univ, AC Coll Technol, Dept Chem Engn, Madras 600025, Tamil Nadu, IndiaAnna Univ, AC Coll Technol, Dept Chem Engn, Madras 600025, Tamil Nadu, India
机构:
Univ Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, CameroonUniv Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, Cameroon
Tchuifon, Donald Raoul Tchuifon
Ndifor-Angwafor, George Nche
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机构:
Univ Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, CameroonUniv Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, Cameroon
Ndifor-Angwafor, George Nche
Bopda, Aurelien
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机构:
Univ Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, CameroonUniv Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, Cameroon
Bopda, Aurelien
Anagho, Solomon Gabche
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机构:
Univ Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, Cameroon
Univ Bamenda, Fac Sci, Dept Chem, Bambili, CameroonUniv Dschang, Fac Sci, Dept Chem, Res Unit Noxious Chem & Environm Engn, POB 67, Dschang, Cameroon