Comparative study of Pb (II) adsorption from water on used cardboard and powdered activated carbon

Fouad. Mekhalef Benhafsa, Abdelghani. Bouchama, Aicha. Chadli, Belgacem. Tadjer and Djelloul. Addad

Abstract

In the present study, we compared the adsorption capacity of Pb (II) from contaminated water of used cardboard (UC) and a commercial powdered activated carbon (PAC), the latter has been characterized by different techniques, namely X-ray diffraction (XRD), scanning electron microscopy with energy dispersive spectroscopy (SEM/EDS), wavelength dispersion x-ray fluorescence (WDXRF), infrared spectroscopy (IR) and surface area B.E.T analyzer. The effect of various parameters, such as the pH, the contact time, the amount of adsorbent, and the temperature on the adsorption of Pb (II) on both materials was investigated. The Pb (II) adsorptions are perfectly described by a pseudo-second-order model, while the intraparticle diffusion is a decisive step after the first minutes of contact. The fit to the Langmuir and Redlich-Peterson models seems perfect for these adsorption reactions. (PAC) showed a greater affinity for Pb (II) compared to (UC) and the adsorption of Pb (II) ions is strongly pH-dependent, on the other hand, the increase in temperature doesn't have much influence on the two solids. This study showed that the capacity of (UC) to adsorb Pb (II) from an aqueous solution is greater than two-thirds of that of (PAC).

Key Words

adsorption; modeling; Pb (II); powdered activated carbon; used cardboard

Address

Fouad. Mekhalef Benhafsa: Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria/ Laboratory of Advanced Materials and Physicochemistry for the Environment and Health (MAPES), Djillali Liabes University, P.B. 89 Sidi Bel Abbes 22000, Algeria/ Laboratoire de Structure, Elaboration et Application des Materiaux Moleculaires (SEA2M), Faculte des Sciences et de la Technologie, BP 188, Universite Abdelhamid Benbadis, Mostaganem, Algeria Abdelghani. Bouchama: Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria/ Laboratoire de Structure, Elaboration et Application des Materiaux Moleculaires (SEA2M), Faculte des Sciences et de la Technologie, BP 188, Universite Abdelhamid Benbadis, Mostaganem, Algeria Aicha. Chadli: Biotechnology applied laboratory to agriculture and environmental preservation, higher school of agronomy, Ex-hall of technology kharoubba, Mostaganem (27000), Algeria Belgacem. Tadjer: Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques CRAPC, BP 384, Bou-Ismail, 42004, Tipaza, Algeria Djelloul. Addad: Laboratoire des Eco Materiaux Fonctionnels et Nanostructures, Universite de Mohammed Boudiaf, Oran, Algeria

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