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Characterization of Clay Materials from Ivory Coast for Their Use as Adsorbents for Wastewater Treatment

Journal of Minerals and Materials Characterization and Engineering 2022年第4期10卷 319-337页

作者： Lucas Moses Kouadio Seif El Islam Lebouachera Sylvie Blanc Joseph Sei Christelle Miqueu florence pannier Hervé Martinez Laboratory of Constitution and Reaction of Matter (LCRM) UFR SSMT Félix Houphou&#235 t-Boigny University Abidjan Ivory Coast Université de Pau et des pays de l’Adour E2S UPPA CNRS Total Energies LFCR Parc Montaury Anglet France Université de Pau et des pays de l’Adour E2S UPPA CNRS UMR 5254 IPREM Pau France Ecole Centrale Casablanca ECC Centre Systèmes Complexes et Interaction Bouskoura Morocco Electrochemical Energy Storage Network (RS2E) CNRS FR3459 33 Rue Saint Leu Amiens Cedex France

In order to contribute to the valorisation of the clay materials of Ivory Coast in the depollution of wastewater, the physicochemical and mineralogical characterization of three clay samples taken in Agboville (AGB), Bingerville (BIN) and Katiola (KAT) was carried out. The objective of this work was to compare the properties of the clays in order to identify the one that is likely to have interesting adsorptive capacities to clean up contaminated water. These clays were studied by chemical analysis, X-ray diffraction, scanning electron microscopy and thermal analysis. In addition, their specific surface areas and cation exchange capacities were determined. The AGB clay is composed of 75.51% kaolinite, 14.20% illite and 9.26% quartz. The BIN clay contains 52.21% kaolinite, 6.23% illite, 17.50% quartz and 15.71% goethite. As for the KAT clay, it contains 48.08% kaolinite, 3.55% illite, 20.14% smectite, 6.11% quartz and 16.86% goethite. Their thermal behavior and microstructure are in agreement with their mineralogy. The measured specific surface areas and cation exchange capacities are consistent with literature values. The KAT clay has the highest specific surface and cation exchange capacity. In the light of the results obtained, the KAT clay appears to be more effective in depolluting water than the BIN and AGB clays.

关键词： Insert Clay Characterization Depollution of Water Kaolinite Smectite

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