Abstract
The objective of this study is the valorization of certain local natural clays by their use in treatment of industrial wastewater. For this purpose, we carried out discoloration tests of effluents by adsorption using two natural clays from two different deposits, one located in Maghnia (MC) and the other in the region of Bechar (BC). The adsorption tests were conducted on a basic dye methylene blue (MB). The effects of temperature, initial dye concentration, contact time, and solution pH on adsorption were studied. The adsorption capacity increased with an increase in adsorbate dosage and a decrease in ionic strength. The equilibrium time was found to be 90 min for full equilibration. Langmuir isotherm model fitted well the equilibrium data for the two sorbents (BC and MC) comparing to the Freundlich isotherm models. The monolayer adsorption capacity of AB and AM for methylene blue (MB) was found to be 223.714 and 510.204 mg/g, respectively. Also, the adsorption processes were endothermic and spontaneous in nature.
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Belbekiri, H., Belhachemi, M. (2015). Adsorption of Methylene Blue from Aqueous Solution by Natural Clays. In: Dincer, I., Colpan, C., Kizilkan, O., Ezan, M. (eds) Progress in Clean Energy, Volume 1. Springer, Cham. https://doi.org/10.1007/978-3-319-16709-1_59
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DOI: https://doi.org/10.1007/978-3-319-16709-1_59
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