Brunauer-Emmett-Teller (B.E.T.), Langmuir and Freundlich Isotherm Studies for the Adsorption of Nickel Ions onto Coal Fly Ash

被引：12

作者：

Agarwal, Ajay K. ^{[1
]}

Kadu, Mahendra S. ^{[1
]}

Pandhurnekar, Chandrashekhar P. ^{[2
]}

Muthreja, Ishwerdas L. ^{[3
]}

机构：

[1] Shri Ramdeobaba Coll Engn & Management, Dept Civil Engn, Nagpur 440013, Maharashtra, India

[2] Shri Ramdeobaba Coll Engn & Management, Dept Chem, Nagpur 440013, Maharashtra, India

[3] Visvesvaraya Natl Inst Technol, Dept Min Engn, Nagpur 440022, Maharashtra, India

来源：

ASIAN JOURNAL OF WATER ENVIRONMENT AND POLLUTION | 2016年 / 13卷 / 02期

关键词：

Fly ash; nickel; BET; Langmuir; Freundlich; adsorption isotherms;

D O I：

10.3233/AJW-160016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The removal of nickel ions by adsorption process using fly ash was investigated in this study. Nickel removal capacity of fly ash was performed by batch mode adsorption experiment using Atomic Absorption Spectroscopy (AAS) technique. The results obtained were fitted to Brunauer-Emmett-Teller (BET), Langmuir and Freundlich adsorption isotherms using least square fit method. The best fit among the isotherm models is assessed by the linear coefficient of regression (R-2) and by non-linear Chi-square test. The theoretical value of q(e) calculated from the best fit linear equation of each adsorption isotherm and the experimental values of q(e) are plotted against C-e, to compare the experimental and theoretical value of q(e). It was observed by linear and non-linear method that BET adsorption isotherm is best fit for the present investigation.

引用

页码：49 / 53

页数：5

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