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Removal of Non-Steroidal Drug from Waste Water Using Synthetic Zeolites from Illito-Kaolinitic clays

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Abstract

Pure Na-P1 and FAU-X zeolites were successfully synthesised from illito-kaolinitic clays by alkaline fusion process. Starting materials have been provided from Tejra and, unprecedentedly, from Douiret regions located in the south-east of Tunisia. The mineralogical composition of original materials and the synthetic products were identified with XRD and IR techniques. Clays and zeolites were used as eco-friendly adsorbents for diclofenac sodium (DIC), non-steroidal anti-inflammatory drug, from water media. Results showed that Na-P1 and FAU-X zeolites start to appear after 8 h and 4 h of crystallisation at 110 °C, successively. The synthesised zeolite samples showed significant shape uniformity with a cation exchange capacity reaching more than 300 meq/100 g. Batch experiments of DIC removal showed that the kinetic data could be well described by the pseudo-second-order model. The Langmuir model provides the best fit for the adsorption equilibrium data, and the monolayer adsorption capacity up to 308.9 mg/g for FAU-X zeolite.

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The data sets used in this study are available from the corresponding author on reasonable request.

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Funding

This work was supported by the Tunisian Ministry of Higher Education and Scientific Research.

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Correspondence to Noureddine Hamdi.

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Amri, I., Ouakouak, A., Hamdi, W. et al. Removal of Non-Steroidal Drug from Waste Water Using Synthetic Zeolites from Illito-Kaolinitic clays. Water Air Soil Pollut 233, 369 (2022). https://doi.org/10.1007/s11270-022-05846-9

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  • DOI: https://doi.org/10.1007/s11270-022-05846-9

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