The present work investigates the photocatalytic degradation efficiency of biorecalcitrant macrolide antibiotics in a circulating tubular photoreactor. As target pollutants, spiramycin (SPM) and tylosin (TYL) were considered in this study. The photoreactor leads to the use of an immobilized titanium dioxide on non-woven paper under artificial UV-lamp irradiation. Maximum removal efficiency was achieved at the optimum conditions of natural pH, low pollutant concentration and a 0.35 L min−1 flow rate. A Langmuir–Hinshelwood model was used to fit experimental results and the model constants were determined. Moreover, the total organic carbon analysis reveals that SPM and TYL mineralization is not complete. In addition, the study of the residence time distribution allowed us to investigate the flow regime of the reactor. Electrical energy consumption for photocatalytic degradation of macrolides using circulating TiO2-coated paper photoreactor was lower compared with some reported photoreactors used for the elimination of pharmaceutic compounds. A repetitive reuse of the immobilized catalyst was also studied in order to check its photoactivity performance.
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Research Article|
February 22 2016
Macrolide antibiotics removal using a circulating TiO2-coated paper photoreactor: parametric study and hydrodynamic flow characterization
Amel Ounnar;
1Centre de Développement des Energies Renouvelables (CDER), 16340 Algiers, Algeria
2Université des Sciences et de la Technologie Houari Boumediene, Faculté de Génie Mécanique et de Génie des Procédés, Laboratoire des Phénomènes de Transfert, Bab-Ezzouar, 16111 Algiers, Algeria
3Laboratoire «Chimie et Ingénierie des Procédés», Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 35708 Rennes, France
E-mail: [email protected]; [email protected]
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Abdelkrim Bouzaza;
Abdelkrim Bouzaza
3Laboratoire «Chimie et Ingénierie des Procédés», Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 35708 Rennes, France
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Lidia Favier;
Lidia Favier
3Laboratoire «Chimie et Ingénierie des Procédés», Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 35708 Rennes, France
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Fatiha Bentahar
Fatiha Bentahar
2Université des Sciences et de la Technologie Houari Boumediene, Faculté de Génie Mécanique et de Génie des Procédés, Laboratoire des Phénomènes de Transfert, Bab-Ezzouar, 16111 Algiers, Algeria
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Water Sci Technol (2016) 73 (11): 2627–2637.
Article history
Received:
June 01 2015
Accepted:
February 05 2016
Citation
Amel Ounnar, Abdelkrim Bouzaza, Lidia Favier, Fatiha Bentahar; Macrolide antibiotics removal using a circulating TiO2-coated paper photoreactor: parametric study and hydrodynamic flow characterization. Water Sci Technol 27 May 2016; 73 (11): 2627–2637. doi: https://doi.org/10.2166/wst.2016.096
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