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Article

Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement

1
Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, Spain
2
Instituto Universitario de Tecnología Cerámica/Departamento de Ingeniería Química, Universitat Jaume I, Campus Universitario Riu Sec, Av. Vicent Sos Baynat s/n, 12006 Castellón, Spain
3
Sociedad Fomento Agrícola Castellonense S.A. (FACSA), c/mayor, 82-84, 12001 Castellón, Spain
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Institute for Energy Technology (IFE), Instituttveien 18, 2007 Kjeller, Norway
5
Plataforma Solar de Almería (PSA)-CIEMAT, Ctra Senés km 4, Tabernas, 04200 Almería, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Dionysios (Dion) D. Dionysiou
Water 2021, 13(3), 329; https://doi.org/10.3390/w13030329
Received: 2 December 2020 / Revised: 10 January 2021 / Accepted: 26 January 2021 / Published: 29 January 2021
(This article belongs to the Special Issue Industrial and Urban Wastewater Treatment and Reuse)
In this work, we have tested a photocatalytic material consisting of a core of SiO2/Fe3O4 coated with TiO2 (Magnox) for plausible tertiary wastewater treatment. For this, a pilot plant of 45 L equipped with an Ultraviolet light (UVC) lamp was employed to study the degradation of a model contaminant, enrofloxacin (ENR), as well as water disinfection (elimination of Escherichia coli and Clostridium perfringens). The influence of different operational conditions was explored by means of dye (rhodamine-B) decolorization rates, analyzing the effects of photocatalyst quantity, pH and recirculation flow rates. The magnox/UVC process was also compared with other four Advanced Oxidation Processes (AOPs): (i) UVC irradiation alone, (ii) hydrogen peroxide with UVC (H2O2/UVC), (iii) Fenton, and (iv) photo-Fenton. Although UVC irradiation was efficient enough to produce total water disinfection, only when employing the AOPs, significant degradations of ENR were observed, with photo-Fenton being the most efficient process (total enrofloxacin removal in 5 min and c.a. 80% mineralization in 120 min, at pH0 2.8). However, Magnox/UVC has shown great pollutant abatement effectiveness under neutral conditions, with the additional advantage of no acid or H2O2 addition, as well as its plausible reuse and simple separation due to its magnetic properties. View Full-Text
Keywords: advanced oxidation process; enrofloxacin degradation; photocatalysis; photo-Fenton; wastewater treatment advanced oxidation process; enrofloxacin degradation; photocatalysis; photo-Fenton; wastewater treatment
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MDPI and ACS Style

Sciscenko, I.; Mestre, S.; Climent, J.; Valero, F.; Escudero-Oñate, C.; Oller, I.; Arques, A. Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement. Water 2021, 13, 329. https://doi.org/10.3390/w13030329

AMA Style

Sciscenko I, Mestre S, Climent J, Valero F, Escudero-Oñate C, Oller I, Arques A. Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement. Water. 2021; 13(3):329. https://doi.org/10.3390/w13030329

Chicago/Turabian Style

Sciscenko, Iván, Sergio Mestre, Javier Climent, Francisco Valero, Carlos Escudero-Oñate, Isabel Oller, and Antonio Arques. 2021. "Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement" Water 13, no. 3: 329. https://doi.org/10.3390/w13030329

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