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The study of azo dye removal from liquid medium by modified clay

Publish Year: 1394
Type: Journal paper
Language: English
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Document National Code:

JR_JAEHR-4-1_002

Index date: 23 July 2018

The study of azo dye removal from liquid medium by modified clay abstract

In this batch study, montmorillonite was modified by a cationic surfactant [hexadecyltrimethylammonium bromide (HDTMA-MMT)] and used as sorbent to remove bromocresol green (BCG) from aqueous solutions. The effect of several factors such as surfactant loading rate onto the clay, contact time, pH, adsorbent dosage, dye concentration, and ion strength were investigated on the sorption. The equilibrium time for BCG sorption was reached at contact time of 20 minutes. Fitting the experimental data to different kinetic and isotherm models showed that the experimental data are well described by pseudo-second-order kinetic (R2 > 0.99) and Freundlich isotherm (R2 > 0.99) models. According to the results of this study, HDTMA-MMT can be considered as a low-cost, eco-friendly, and highly effective option for the sorption of BCG from aqueous solutions.

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The study of azo dye removal from liquid medium by modified clay authors

Yusef Omidi-Khaniabadi

Health Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Ali Jafari

Department of Environmental Health Engineering, School of Health, Lorestan University of Medical Sciences, Khorramabad, Iran

Mehdi Jourvand

Department of Environmental Health Engineering, School of Health, Lorestan University of Medical Sciences, Khorramabad, Iran

Sedigheh Saeedi

Sama Technical and Vocational College, Izeh Branch, Islamic Azad University, Izah, Iran