Étude comparative de l’adsorption d’un colorant de cuve sur différents adsorbants à base d’un matériau inorganique la Bentonite et l’argile de la région de M’sila

Abstract : The present work aims to reduce the impact of vat dyes by a natural and activated Algerian clay using the adsorption technique. The adsorption experiments show that the clay used is very effective in removing the vat dye at relatively low concentrations in an aqueous medium. The adsorption isotherms of the vat dye on the raw clay are satisfactorily described by the Langmuir model. Adsorption capacities in the range of 55.25 mg. g(-1) for crude bentonite (BB), 55.20 mg. g(-1) for sodium bentonite (BS), 51.78 mg. g(-1) for red clay (AR) and 48.24 mg. g(-1) for Madadid clay (AM) were determined from the Langmuir isotherm. These values show that the raw bentonite has a better adsorption capacity because it contains a large percentage of clay fraction.
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Nadir Deghfel, Azzedine Benyahia, Kamel Guerfi, Abdelhamid Errachid, Kamel Belmokre. Étude comparative de l’adsorption d’un colorant de cuve sur différents adsorbants à base d’un matériau inorganique la Bentonite et l’argile de la région de M’sila. Matériaux & Techniques, EDP Sciences, 2018, 105 (4), pp. Article Number: 405 ⟨10.1051/mattech/2018023⟩. ⟨hal-01859133⟩

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