Title of article :
Removal of formaldehyde from aqueous solution by adsorption on kaolin and bentonite: a comparative study
Author/Authors :
SALMAN, Muhammad University of the Punjab - Institute of Chemistry, PAKISTAN , ATHAR, Makshoof University of the Punjab - Institute of Chemistry, PAKISTAN , SHAFIQUE, Umer University of the Punjab - Center of Undergraduate of Studies, PAKISTAN , REHMAN, Rabia University of the Punjab - Institute of Chemistry, PAKISTAN , AMEER, Sadia University of the Punjab - Institute of Chemistry, PAKISTAN , ALI, Sana Zulfiqar University of the Punjab - Institute of Chemistry, PAKISTAN , AZEEM, Muhammad University of the Punjab - Institute of Chemistry, PAKISTAN
Abstract :
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.
Keywords :
Adsorption , formaldehyde , isotherms , kaolin , bentonite
Journal title :
Turkish Journal of Engineering and Environmental Sciences
Journal title :
Turkish Journal of Engineering and Environmental Sciences
