Phosphate Adsorption from Aqueous Solutions by Syrian Zeolitic Ore:  Kinetic Study

Zyad Hatem*(1) Leila Habib(1) and Mohammad Ghafar (2)

(1). Department of Water and Soil Sciences, Faculty of Agriculture, Tishreen University, Latakia, Syria.

(2). Department of Environmental Chemistry, High Institute of Environmental Researches, Tishreen University, Latakia, Syria.

* (Corresponding author: Zyad Hatem. E-Mail:

Received: 11/09/2017                                Accepted: 29/10/2017


Kinetic study aimed to describe the performance of natural Syrian zeolitic ore (NSZO) for Phosphate (P) adsorption from aqueous solutions, and the contribution of NSZO components on P- adsorption. Obtained results demonstrated that parameter derived from kinetic models predicted two accompanied mechanisms affected P- adsorption: Intraparticle diffusion mechanism in presence of film diffusion. Besides, carbonate removal promoted P- adsorption more than 40 % comparing with the sample removed carbonate and oxides, this led to fact that the efficiency of NSZO in P adsorption belongs to iron oxides coatings zeolite particles, and it explains the decrease of adsorbed P in samples removed from Fe oxides and carbonate components.

Keywords: Phosphate removal, Zeolite, Kinetics, Purification, Intraparticle diffusion.

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