Adsorption kinetics and column operations for the removal and recovery of malachite green from wastewater using bottom ash

被引：317

作者：

Gupta, VK ^{[1
]}

Mittal, A

Krishnan, L

Gajbe, V

机构：

[1] Indian Inst Technol, Dept Chem, Roorkee 247667, Uttar Pradesh, India

[2] Maulana Azad Natl Inst Technol, Dept Appl Chem, Bhopal 462007, India

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2004年 / 40卷 / 01期

关键词：

malachite green; bottom ash; adsorption; waste material; kinetics;

D O I：

10.1016/j.seppur.2004.01.008

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The thermal power plant waste material, 'bottom ash' was utilized as a potential adsorbent for the toxic textile dye 'malachite green'. Preliminary information was gathered by batch adsorption studies, which include effect of pH, adsorbent dose, contact time, adsorbate concentration and temperature. Plausible mechanism of the on-going adsorption process and thermodynamic parameters involved were obtained by carrying Out kinetic measurements. The data obtained was successfully used to equate Langmuir and Freundlich adsorption isotherm models. A fixed-bed column was designed and necessary parameters were calculated by applying mass transfer kinetic approach. Attempts were also made to recover dye and regenerate the column. (C) 2004 Elsevier B.V All rights reserved.

引用

页码：87 / 96

页数：10

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