Removal of Cr(VI) from Aqueous Environments Using Micelle-Clay Adsorption

Mohannad Qurie; Mustafa Khamis; Adnan Manassra; Ibrahim Ayyad; Shlomo Nir; Laura Scrano; Sabino A. Bufo; Rafik Karaman

doi:10.1155/2013/942703

The Scientific World Journal (Jan 2013)

Removal of Cr(VI) from Aqueous Environments Using Micelle-Clay Adsorption

Mohannad Qurie,
Mustafa Khamis,
Adnan Manassra,
Ibrahim Ayyad,
Shlomo Nir,
Laura Scrano,
Sabino A. Bufo,
Rafik Karaman

Affiliations

Mohannad Qurie: Department of Chemistry and Chemical Technology, Faculty of Science and Technology, Al-Quds University, 20002 Jerusalem, Palestine
Mustafa Khamis: Department of Chemistry and Chemical Technology, Faculty of Science and Technology, Al-Quds University, 20002 Jerusalem, Palestine
Adnan Manassra: Department of Chemistry and Chemical Technology, Faculty of Science and Technology, Al-Quds University, 20002 Jerusalem, Palestine
Ibrahim Ayyad: Department of Chemistry and Chemical Technology, Faculty of Science and Technology, Al-Quds University, 20002 Jerusalem, Palestine
Shlomo Nir: Department of Soil and Water Sciences, The R. H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 76100 Rehovot, Israel
Laura Scrano: Department of European Cultures (DICEM), University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
Sabino A. Bufo: Department of Science, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
Rafik Karaman: Department of Chemistry and Chemical Technology, Faculty of Science and Technology, Al-Quds University, 20002 Jerusalem, Palestine

DOI: https://doi.org/10.1155/2013/942703
Journal volume & issue: Vol. 2013

Abstract

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Removal of Cr(VI) from aqueous solutions under different conditions was investigated using either clay (montmorillonite) or micelle-clay complex, the last obtained by adsorbing critical micelle concentration of octadecyltrimethylammonium ions onto montmorillonite. Batch experiments showed the effects of contact time, adsorbent dosage, and pH on the removal efficiency of Cr(VI) from aqueous solutions. Langmuir adsorption isotherm fitted the experimental data giving significant results. Filtration experiments using columns filled with micelle-clay complex mixed with sand were performed to assess Cr(VI) removal efficiency under continuous flow at different pH values. The micelle-clay complex used in this study was capable of removing Cr(VI) from aqueous solutions without any prior acidification of the sample. Results demonstrated that the removal effectiveness reached nearly 100% when using optimal conditions for both batch and continuous flow techniques.

Published in The Scientific World Journal

ISSN: 2356-6140 (Print); 1537-744X (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Technology; Medicine; Science
Website: https://onlinelibrary.wiley.com/journal/8086

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