Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous Solution
Atrazine is one of the most used pesticides, although it is extremely toxic for living organisms. In spite of that, the control, removal, and elimination of this agrochemical are still deficient in water treatment plants (just over 25%). For this reason, the main objective of this study was to eval...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Mato Grosso do Sul
2021-06-01
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| Series: | Orbital: The Electronic Journal of Chemistry |
| Subjects: | |
| Online Access: | https://periodicos.ufms.br/index.php/orbital/article/view/15624 |
| _version_ | 1828057811176652800 |
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| author | Pedro Luis Sanabria Florez Suellen Aparecida lves Patricia Los Weinert Elaine Regina Lopes Tiburtius |
| author_facet | Pedro Luis Sanabria Florez Suellen Aparecida lves Patricia Los Weinert Elaine Regina Lopes Tiburtius |
| author_sort | Pedro Luis Sanabria Florez |
| collection | DOAJ |
| description |
Atrazine is one of the most used pesticides, although it is extremely toxic for living organisms. In spite of that, the control, removal, and elimination of this agrochemical are still deficient in water treatment plants (just over 25%). For this reason, the main objective of this study was to evaluate atrazine degradation efficiency in aqueous solution using the photo-Fenton system assisted by a light-emitting diode (LED) lamp. The degradation results of 30 mg L-1 atrazine evidenced that our approach presented an efficiency of approximately 98% in only 240 minutes of reaction, and the observed mineralization was 60% of total organic carbon (TOC). Several byproducts were identified (such as HA, DEA, DIA, HDEA, HDIA, and HDEDIA), and the degradation mechanism followed dechlorination and hydroxylation pathways that produce HDEDIA or ammelide. In this way, the photo-Fenton system under an LED lamp showed to be highly efficient at removing atrazine from aqueous solutions, offering several advantages compared to the traditional system, such as lower energy consumption and more environmentally friendly features.
DOI: http://dx.doi.org/10.17807/orbital.v13i2.1531
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| first_indexed | 2024-04-10T21:18:08Z |
| format | Article |
| id | doaj.art-0c52685b0f0a4e648342c2dd524b5fc2 |
| institution | Directory Open Access Journal |
| issn | 1984-6428 |
| language | English |
| last_indexed | 2024-04-10T21:18:08Z |
| publishDate | 2021-06-01 |
| publisher | Universidade Federal de Mato Grosso do Sul |
| record_format | Article |
| series | Orbital: The Electronic Journal of Chemistry |
| spelling | doaj.art-0c52685b0f0a4e648342c2dd524b5fc22023-01-20T10:49:00ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282021-06-01132Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous SolutionPedro Luis Sanabria Florez0Suellen Aparecida lves1Patricia Los Weinert2Elaine Regina Lopes Tiburtius31. Chemistry Department, State University of Ponta Grossa 2. Facultad de Química Ambiental, Universidad Santo Tomás, A.A. 1076 Bucaramanga, ColombiaChemistry Department, State University of Ponta GrossaChemistry Department, State University of Ponta GrossaUniversidade Estadual de Ponta Grossa Atrazine is one of the most used pesticides, although it is extremely toxic for living organisms. In spite of that, the control, removal, and elimination of this agrochemical are still deficient in water treatment plants (just over 25%). For this reason, the main objective of this study was to evaluate atrazine degradation efficiency in aqueous solution using the photo-Fenton system assisted by a light-emitting diode (LED) lamp. The degradation results of 30 mg L-1 atrazine evidenced that our approach presented an efficiency of approximately 98% in only 240 minutes of reaction, and the observed mineralization was 60% of total organic carbon (TOC). Several byproducts were identified (such as HA, DEA, DIA, HDEA, HDIA, and HDEDIA), and the degradation mechanism followed dechlorination and hydroxylation pathways that produce HDEDIA or ammelide. In this way, the photo-Fenton system under an LED lamp showed to be highly efficient at removing atrazine from aqueous solutions, offering several advantages compared to the traditional system, such as lower energy consumption and more environmentally friendly features. DOI: http://dx.doi.org/10.17807/orbital.v13i2.1531 https://periodicos.ufms.br/index.php/orbital/article/view/15624AOPAgrotoxicLed-visiblePhoto-Fenton |
| spellingShingle | Pedro Luis Sanabria Florez Suellen Aparecida lves Patricia Los Weinert Elaine Regina Lopes Tiburtius Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous Solution Orbital: The Electronic Journal of Chemistry AOP Agrotoxic Led-visible Photo-Fenton |
| title | Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous Solution |
| title_full | Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous Solution |
| title_fullStr | Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous Solution |
| title_full_unstemmed | Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous Solution |
| title_short | Assessment of UV-Vis LED-assisted Photo-Fenton Reactor for Atrazine Degradation in Aqueous Solution |
| title_sort | assessment of uv vis led assisted photo fenton reactor for atrazine degradation in aqueous solution |
| topic | AOP Agrotoxic Led-visible Photo-Fenton |
| url | https://periodicos.ufms.br/index.php/orbital/article/view/15624 |
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