Algerian Journal of Renewable Energy and Sustainable Development
Volume 2, Numéro 1, Pages 60-66
2020-06-15

Elimination Of Methylene Blue By Low-cost Biomaterial Preparedfrom Local Natural Residue



Authors : Fatma Lansari . Meryem Edjekouane . Omar Khelifi . Ishak Boukheteche . Hamza Laksaci .

Abstract

This study aims to assess the use of natural waste (fruitkernels) for the preparation of a bimaterialin order to use it as a natural support for the elimination of a dye (methylene blue) from aqueous solutionsfor environmental protection. The biomaterial was characterized physicochemically and the determination of methylene blue concentration was carried out by a UV-Visible spectrophotometer. In order to clarify the adsorption process, experiments in a batch system were carried out to study the effect of operating parameters such as the initial concentration ofmethylene blue (2-10 mg·L-1), biomaterial(0.1-1 g)and the contact time (10-120 min). Todescribe the adsorption equilibrium, the experimental data were analyzed by the Langmuir isotherm and the Freundlich isotherm. The equilibrium is perfectly described by the Freundlich model (R2>0.99) and the adsorption process is multilayer. Theresults of the present study suggest that washingtonia seed (WS)can be advantageously used as a low-cost biosorbent for water discoloration

Keywords

BiomaterialNatural residueAdsorptionMethylene blue

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