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An optimized sono-heterogeneous Fenton degradation of olive-oil mill wastewater organic matter by new magnetic glutarlaldehyde-crosslinked developed cellulose

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Abstract

The present study highlights the olive mill wastewater (OMW) treatment characteristics through a sono-heterogeneous Fenton process using new designed [GTA-(PDA-g-DAC) @Fe3O4] and characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), magnetic properties measurements, and point of zero charge (pH pzc) analysis. A preliminary removal study showed significant degradation efficiency (75%) occurred combining the magnetic synthesized catalyst [GTA-(PDA-g-DAC)@Fe3O4] ([catalyst] = 2 g/L) with US /H2O2 and maintaining 500WL−1 ultrasonic power (US). The values obtained by US only were (13%), H2O2/US (18%), US/Fe3O4 (28%), and US /Fe3O4/H2O2(35%). The catalytic findings have shown that [GTA-(PDA-g-DAC)@Fe3O4] exhibited good properties for OMW compound’s degradation. The sonocatalytic process coupling and extra oxidant addition resulted in the degradation substantial levels. For instance, the concomitant effect of degradation optimized parameters; H2O2 10 mM, [GTA-(PDA-g-DAC) @Fe3O4] nanocomposites 2.5 g/L, at pH 3, and T 35 °C for 70 min resulted in an almost complete mineralization of aqueous OMW solution followed by a significant decolorization. Oxidation results exhibited efficient degradation rates in total phenolic compounds (TPC), total amino compounds (TAC), and chemical oxygen demand (COD) oxidation rate were 89.88, 92.75, and 95.66 respectively following the optimized sono-heterogeneous catalytic Fenton process. The prepared magnetic catalyst exhibited a good stability during repeated cycles. The gathered findings gave the evidence that sono-heterogeneous catalytic Fenton process is a promising treatment technology for OMW effluents.

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The data that support the findings of this study are available upon request from the corresponding author.

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Funding

This work was supported by Tunisian-Morocco cooperation Recherche Programme through the research group No 17/TM10.

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Authors and Affiliations

  1. Research Unit Materials and Organic Synthesis (UR17ES31), Preparatory Institute for Engineering Studies of Monastir, University of Monastir, Avenue of the Environment, 5000, Monastir, Tunisia

    Rahma Mehdaoui, Soumaya Agren & Mohamed Hassen V Baouab

  2. Department of Inorganic Chemistry, Instituto de Ciencias de Los Materiales de la Universitad de Valencia, Calle Catedratico José Beltran 2, 46980, Paterna, Valencia, Spain

    Soumaya Agren & Jamal El Haskouri

  3. Department of Material’s Engineering, Université Lyon 1, UMR CNRS5223, Ingénierie des Matériaux Polymères, Villeurbanne, France

    Emmanuel Beyou

  4. Laboratory of organometallic and macromolecular chemistry-composites Materials, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelhakim Elkhattabi, BP549, 40000, Marrakech, Morocco

    Mohammed Lahcini

  5. Mohamed VI Polytechnic University, Lot 660, Hay Moulay Rachid, 43150, Ben Guerir, Morocco

    Mohammed Lahcini

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  1. Rahma Mehdaoui
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  2. Soumaya Agren
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  4. Emmanuel Beyou
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  6. Mohamed Hassen V Baouab
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Contributions

All authors contributed to the study conception and design. Conceptualization; software: Rahma Mehdaoui. Conceptualization; software; writing original draft: Soumaya Agren. Formal analysis: Jamal El Haskouri. Methodology; validation: Emmanuel Beyou. Project administration: Mohammed Lahcini. Funding acquisition; methodology: Mohamed Hassen V Baouab. All authors read and approved the final manuscript.

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Correspondence to Mohamed Hassen V Baouab.

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Mehdaoui, R., Agren, S., El Haskouri, J. et al. An optimized sono-heterogeneous Fenton degradation of olive-oil mill wastewater organic matter by new magnetic glutarlaldehyde-crosslinked developed cellulose. Environ Sci Pollut Res 30, 20450–20468 (2023). https://doi.org/10.1007/s11356-022-23276-2

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