Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure Water
Different advanced oxidation processes (AOPs) (ultraviolet radiation, hydrogen peroxide photolysis and photo-Fenton) were applied to test the degradation of terbuthylazine in three types of water: (a) ultrapure water, (b) surface water from the Gaditana area (Los Hurones reservoir, Cádiz, Spain) and...
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MDPI AG
2022-07-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/14/4507 |
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| author | José Antonio Andrades Manuel Lojo-López Agata Egea-Corbacho José María Quiroga |
| author_facet | José Antonio Andrades Manuel Lojo-López Agata Egea-Corbacho José María Quiroga |
| author_sort | José Antonio Andrades |
| collection | DOAJ |
| description | Different advanced oxidation processes (AOPs) (ultraviolet radiation, hydrogen peroxide photolysis and photo-Fenton) were applied to test the degradation of terbuthylazine in three types of water: (a) ultrapure water, (b) surface water from the Gaditana area (Los Hurones reservoir, Cádiz, Spain) and (c) groundwater from the Tempul spring in Jerez de la Frontera (Cádiz, Spain). The experiments were carried out on a laboratory scale, using two different types of reactors, batch and semi-continuous. In batch reactors, the most efficient process for the experiments carried out with both ultrapure water and underground groundwater was ultraviolet radiation, whereas for surface water from the Gaditana area, the process that obtained the best results was the photolysis of hydrogen peroxide with 2.5 mg L<sup>−1</sup> of H<sub>2</sub>O<sub>2</sub>. In semi-continuous reactors, the most efficient process was the photolysis of hydrogen peroxide with 2.5 mg L<sup>−1</sup> of H<sub>2</sub>O<sub>2</sub> for all the matrices studied. In both types of reactors, terbuthylazine degradation percentages higher than 90% were achieved; the main difference was in the reaction time, which varied from minutes in the batch reactor to seconds in the semi-continuous reactor. In all the applied AOPs, N-terbutyl-6-hydroxy-N′ethyl-1,3,5-triazine-2,4-diamine (TBA-212) was generated as a reaction intermediate. |
| first_indexed | 2024-03-09T13:17:32Z |
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| id | doaj.art-7aa08c345db94a1188e533313781e9e2 |
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| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T13:17:32Z |
| publishDate | 2022-07-01 |
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| series | Molecules |
| spelling | doaj.art-7aa08c345db94a1188e533313781e9e22023-11-30T21:33:49ZengMDPI AGMolecules1420-30492022-07-012714450710.3390/molecules27144507Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure WaterJosé Antonio Andrades0Manuel Lojo-López1Agata Egea-Corbacho2José María Quiroga3Department of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cadiz, Puerto Real, 11510 Cadiz, SpainDepartment of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cadiz, Puerto Real, 11510 Cadiz, SpainDepartment of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cadiz, Puerto Real, 11510 Cadiz, SpainDepartment of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cadiz, Puerto Real, 11510 Cadiz, SpainDifferent advanced oxidation processes (AOPs) (ultraviolet radiation, hydrogen peroxide photolysis and photo-Fenton) were applied to test the degradation of terbuthylazine in three types of water: (a) ultrapure water, (b) surface water from the Gaditana area (Los Hurones reservoir, Cádiz, Spain) and (c) groundwater from the Tempul spring in Jerez de la Frontera (Cádiz, Spain). The experiments were carried out on a laboratory scale, using two different types of reactors, batch and semi-continuous. In batch reactors, the most efficient process for the experiments carried out with both ultrapure water and underground groundwater was ultraviolet radiation, whereas for surface water from the Gaditana area, the process that obtained the best results was the photolysis of hydrogen peroxide with 2.5 mg L<sup>−1</sup> of H<sub>2</sub>O<sub>2</sub>. In semi-continuous reactors, the most efficient process was the photolysis of hydrogen peroxide with 2.5 mg L<sup>−1</sup> of H<sub>2</sub>O<sub>2</sub> for all the matrices studied. In both types of reactors, terbuthylazine degradation percentages higher than 90% were achieved; the main difference was in the reaction time, which varied from minutes in the batch reactor to seconds in the semi-continuous reactor. In all the applied AOPs, N-terbutyl-6-hydroxy-N′ethyl-1,3,5-triazine-2,4-diamine (TBA-212) was generated as a reaction intermediate.https://www.mdpi.com/1420-3049/27/14/4507advanced oxidation processes (AOPs)terbuthylazinenatural watersUV reactorsUPLC-MS |
| spellingShingle | José Antonio Andrades Manuel Lojo-López Agata Egea-Corbacho José María Quiroga Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure Water Molecules advanced oxidation processes (AOPs) terbuthylazine natural waters UV reactors UPLC-MS |
| title | Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure Water |
| title_full | Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure Water |
| title_fullStr | Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure Water |
| title_full_unstemmed | Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure Water |
| title_short | Comparative Effect of UV, UV/H<sub>2</sub>O<sub>2</sub> and UV/H<sub>2</sub>O<sub>2</sub>/Fe on Terbuthylazine Degradation in Natural and Ultrapure Water |
| title_sort | comparative effect of uv uv h sub 2 sub o sub 2 sub and uv h sub 2 sub o sub 2 sub fe on terbuthylazine degradation in natural and ultrapure water |
| topic | advanced oxidation processes (AOPs) terbuthylazine natural waters UV reactors UPLC-MS |
| url | https://www.mdpi.com/1420-3049/27/14/4507 |
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