Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Application of Glycyrrhiza glabra root as a novel adsorbent in the removal of toluene vapors: Equilibrium, kinetic, and thermodynamic study

(2013) Application of Glycyrrhiza glabra root as a novel adsorbent in the removal of toluene vapors: Equilibrium, kinetic, and thermodynamic study. Journal of environmental and public health. ISSN 16879805 (ISSN)

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

The aim of this paper is to investigate the removal of toluene from gaseous solution through Glycyrrhiza glabra root (GGR) as a waste material. The batch adsorption experiments were conducted at various conditions including contact time, adsorbate concentration, humidity, and temperature. The adsorption capacity was increased by raising the sorbent humidity up to 50 percent. The adsorption of toluene was also increased over contact time by 12 h when the sorbent was saturated. The pseudo-second-order kinetic model and Freundlich model fitted the adsorption data better than other kinetic and isotherm models, respectively. The Dubinin-Radushkevich (D-R) isotherm also showed that the sorption by GGR was physical in nature. The results of the thermodynamic analysis illustrated that the adsorption process is exothermic. GGR as a novel adsorbent has not previously been used for the adsorption of pollutants. © 2013 Fazel Mohammadi-Moghadam et al.

Item Type: Article
Keywords: adsorbent toluene solvent adsorption adsorption kinetics article concentration (parameters) equilibrium constant Glycyrrhiza glabra humidity nonhuman plant root pollutant priority journal temperature thermodynamics vapor waste component removal chemistry gas Glycyrrhiza human isolation and purification kinetics theoretical model Gases Humans Models, Theoretical Plant Roots Solvents
Divisions:
Journal or Publication Title: Journal of environmental and public health
Journal Index: Scopus
Volume: 2013
Identification Number: https://doi.org/10.1155/2013/986083
ISSN: 16879805 (ISSN)
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/1590

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