Document Type

Journal Article

Publisher

Hindawi Publishing Corporation

Faculty

Faculty of Health, Engineering and Science

School

School of Engineering

RAS ID

16428

Comments

This article was originally published as: Mohammadi-Moghadam, F., Amin, , M., Khiadani, M. , Momenbeik, F., Nourmoradi , H., & Hatamipour, M. (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, 2013, Article 986083. Original article available here

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.

Creative Commons License

Creative Commons Attribution 3.0 License
This work is licensed under a Creative Commons Attribution 3.0 License.

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