Removal of formaldehyde from aqueous solution by adsorption on kaolin and bentonite: A comparative study

被引：28
|
作者：
Salman, Muhammad [1 ]
Athar, Makshoof [1 ]
Shafique, Umer [2 ]
Rehman, Rabia [1 ]
Ameer, Sadia [1 ]
Ali, Sana Zulfiqar [1 ]
Azeem, Muhammad [1 ]
机构：
[1] Institute of Chemistry, University of the Punjab, Lahore, 54590, Pakistan
[2] Center of Undergraduate of Studies, University of the Punjab, Lahore, 54590, Pakistan
来源：
Turkish Journal of Engineering and Environmental Sciences | 2012年 / 36卷 / 03期
关键词：
Adsorbents - Solutions - Adsorption isotherms - Formaldehyde - Water pollution - Bentonite - Organic pollutants;
D O I：
10.3906/muh-1109-8
中图分类号：
学科分类号：
摘要：
The adsorption of formaldehyde on bentonite and kaolin was studied in batch mode. Parameters like adsorbent dose, pH, contact time and agitation speed were investigated. Langmuir, Freundlich and Temkin isotherms were employed for describing adsorption equilibrium. The maximum amounts of formaldehyde adsorbed (qmax), as evaluated by Langmuir isotherm, were 3.41 and 5.03 milligrams per gram of ground kaolin and bentonite, respectively. The study results led to the conclusion that kaolin and bentonite, vastly available inorganic clays, have good potential as adsorbents to remove toxic organic pollutants such as formaldehyde from water. © TÜBITAK.
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页码：263 / 270
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