Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement
In this work, we have tested a photocatalytic material consisting of a core of SiO<sub>2</sub>/Fe<sub>3</sub>O<sub>4</sub> coated with TiO<sub>2</sub> (Magnox) for plausible tertiary wastewater treatment. For this, a pilot plant of 45 L equipped with a...
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MDPI AG
2021-01-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/3/329 |
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| author | Iván Sciscenko Sergio Mestre Javier Climent Francisco Valero Carlos Escudero-Oñate Isabel Oller Antonio Arques |
| author_facet | Iván Sciscenko Sergio Mestre Javier Climent Francisco Valero Carlos Escudero-Oñate Isabel Oller Antonio Arques |
| author_sort | Iván Sciscenko |
| collection | DOAJ |
| description | In this work, we have tested a photocatalytic material consisting of a core of SiO<sub>2</sub>/Fe<sub>3</sub>O<sub>4</sub> coated with TiO<sub>2</sub> (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 <i>Escherichia coli</i> and <i>Clostridium perfringens</i>). 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 (H<sub>2</sub>O<sub>2</sub>/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 pH<sub>0</sub> 2.8). However, Magnox/UVC has shown great pollutant abatement effectiveness under neutral conditions, with the additional advantage of no acid or H<sub>2</sub>O<sub>2</sub> addition, as well as its plausible reuse and simple separation due to its magnetic properties. |
| first_indexed | 2024-03-09T03:20:39Z |
| format | Article |
| id | doaj.art-a5600ef127774ebb8372a44fb0bedb97 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T03:20:39Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-a5600ef127774ebb8372a44fb0bedb972023-12-03T15:12:02ZengMDPI AGWater2073-44412021-01-0113332910.3390/w13030329Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin AbatementIván Sciscenko0Sergio Mestre1Javier Climent2Francisco Valero3Carlos Escudero-Oñate4Isabel Oller5Antonio Arques6Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, SpainInstituto Universitario de Tecnología Cerámica/Departamento de Ingeniería Química, Universitat Jaume I, Campus Universitario Riu Sec, Av. Vicent Sos Baynat s/n, 12006 Castellón, SpainSociedad Fomento Agrícola Castellonense S.A. (FACSA), c/mayor, 82-84, 12001 Castellón, SpainSociedad Fomento Agrícola Castellonense S.A. (FACSA), c/mayor, 82-84, 12001 Castellón, SpainInstitute for Energy Technology (IFE), Instituttveien 18, 2007 Kjeller, NorwayPlataforma Solar de Almería (PSA)-CIEMAT, Ctra Senés km 4, Tabernas, 04200 Almería, SpainDepartamento de Ingeniería Textil y Papelera, Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, SpainIn this work, we have tested a photocatalytic material consisting of a core of SiO<sub>2</sub>/Fe<sub>3</sub>O<sub>4</sub> coated with TiO<sub>2</sub> (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 <i>Escherichia coli</i> and <i>Clostridium perfringens</i>). 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 (H<sub>2</sub>O<sub>2</sub>/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 pH<sub>0</sub> 2.8). However, Magnox/UVC has shown great pollutant abatement effectiveness under neutral conditions, with the additional advantage of no acid or H<sub>2</sub>O<sub>2</sub> addition, as well as its plausible reuse and simple separation due to its magnetic properties.https://www.mdpi.com/2073-4441/13/3/329advanced oxidation processenrofloxacin degradationphotocatalysisphoto-Fentonwastewater treatment |
| spellingShingle | Iván Sciscenko Sergio Mestre Javier Climent Francisco Valero Carlos Escudero-Oñate Isabel Oller Antonio Arques Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement Water advanced oxidation process enrofloxacin degradation photocatalysis photo-Fenton wastewater treatment |
| title | Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement |
| title_full | Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement |
| title_fullStr | Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement |
| title_full_unstemmed | Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement |
| title_short | Magnetic Photocatalyst for Wastewater Tertiary Treatment at Pilot Plant Scale: Disinfection and Enrofloxacin Abatement |
| title_sort | magnetic photocatalyst for wastewater tertiary treatment at pilot plant scale disinfection and enrofloxacin abatement |
| topic | advanced oxidation process enrofloxacin degradation photocatalysis photo-Fenton wastewater treatment |
| url | https://www.mdpi.com/2073-4441/13/3/329 |
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