Abstract
The scientific community has focused many research efforts on finding natural materials suitable for the most efficient wastewater purification. Our contribution is removing organic contaminants by exploiting the natural properties of clay and organo-clay materials. Two raw clayey materials (MIC and NC) were collected from the Basilicata region (South Italy), and another one was a Wyoming Na-montmorillonite (MMT) supplied by the Clay Minerals Society. Octadecyl-trimethyl-ammonium (Br) (ODTMA) was the organic cation used for modifying the clay surface to micelle-clay status. Unfortunately, MIC and NC could not retain a sufficient amount of surfactant. The MMT-ODTMA system, prepared using a concentration of the organic cation higher than the critical micelle concentration (CMC), was very effective in removing from water the herbicide atrazine, selected as the model contaminant for this study. This result encourages us to continue investigations to offer a low-cost and straightforward system to purify water even at home or small settlement levels.
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Scrano, L., Pallara, M., Buccioni, R., Mongelli, G., Bufo, S.A., Laviano, R. (2023). Characterization of Natural and Modified Clay Used for a Filtration System Aiming at the Removal of Contaminants from Surface Water. In: Çiner, A., et al. Recent Research on Environmental Earth Sciences, Geomorphology, Soil Science, Paleoclimate, and Karst. MedGU 2021. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-031-42917-0_9
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