A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pH
The demand for sustainable and feasible water treatment technologies (WTT) increases with the growing realization of the magnitude of the damage that our indiscriminate wastewater disposal strategy has caused the Environment. Considering the increasing costs of energy, the development of solar-drive...
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Elsevier
2023-05-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821123000303 |
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| author | Bruno Ramos Lívia Babetto Ferreira Priscila Hasse Palharim Patrícia Metolina Carolina de Araújo Gusmão Antonio Carlos Silva Costa Teixeira |
| author_facet | Bruno Ramos Lívia Babetto Ferreira Priscila Hasse Palharim Patrícia Metolina Carolina de Araújo Gusmão Antonio Carlos Silva Costa Teixeira |
| author_sort | Bruno Ramos |
| collection | DOAJ |
| description | The demand for sustainable and feasible water treatment technologies (WTT) increases with the growing realization of the magnitude of the damage that our indiscriminate wastewater disposal strategy has caused the Environment. Considering the increasing costs of energy, the development of solar-driven processes is key to ensuring the economic feasibility of WTT for industries of all sizes. In this direction, this paper reports the development of a photo-Fenton-like system based on the persulfate ion and the use of solar irradiation as its coactivator for use in continuous processes. Using acetaminophen as model contaminant (C0 = 5 ppm), we showed that under optimal conditions and circumneutral pH (pH ∼5.6), a removal of 94% was achievable with a residence time of 3.3 min. Economically, this translates into a collector area per order of 11.4 m2/(m3 order), in line with the best numbers found in the literature. We showed that this was achieved due to the improved concentration of sulfate radicals, SO4•−, formed in the system, when compared to the same process carried out in a small-scale batch reactor. Our results, obtained under controlled conditions using a solar simulator, were validated under natural sunlight, confirming the feasibility of our proposed intensification strategy. |
| first_indexed | 2024-04-09T14:12:11Z |
| format | Article |
| id | doaj.art-a006b429db974885a94336b407ebc738 |
| institution | Directory Open Access Journal |
| issn | 2666-8211 |
| language | English |
| last_indexed | 2024-04-09T14:12:11Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj.art-a006b429db974885a94336b407ebc7382023-05-06T04:39:12ZengElsevierChemical Engineering Journal Advances2666-82112023-05-0114100473A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pHBruno Ramos0Lívia Babetto Ferreira1Priscila Hasse Palharim2Patrícia Metolina3Carolina de Araújo Gusmão4Antonio Carlos Silva Costa Teixeira5Department of Chemical Engineering, Escola Politécnica, University of São Paulo, 05088000, São Paulo, Brazil; Bionanomanufacturing Center, Instituto de Pesquisas Tecnológicas do Estado de São Paulo, 05508901, São Paulo, Brazil; Corresponding author.Department of Chemical Engineering, Escola Politécnica, University of São Paulo, 05088000, São Paulo, BrazilDepartment of Chemical Engineering, Escola Politécnica, University of São Paulo, 05088000, São Paulo, BrazilDepartment of Chemical Engineering, Escola Politécnica, University of São Paulo, 05088000, São Paulo, BrazilDepartment of Chemical Engineering, Escola Politécnica, University of São Paulo, 05088000, São Paulo, BrazilDepartment of Chemical Engineering, Escola Politécnica, University of São Paulo, 05088000, São Paulo, BrazilThe demand for sustainable and feasible water treatment technologies (WTT) increases with the growing realization of the magnitude of the damage that our indiscriminate wastewater disposal strategy has caused the Environment. Considering the increasing costs of energy, the development of solar-driven processes is key to ensuring the economic feasibility of WTT for industries of all sizes. In this direction, this paper reports the development of a photo-Fenton-like system based on the persulfate ion and the use of solar irradiation as its coactivator for use in continuous processes. Using acetaminophen as model contaminant (C0 = 5 ppm), we showed that under optimal conditions and circumneutral pH (pH ∼5.6), a removal of 94% was achievable with a residence time of 3.3 min. Economically, this translates into a collector area per order of 11.4 m2/(m3 order), in line with the best numbers found in the literature. We showed that this was achieved due to the improved concentration of sulfate radicals, SO4•−, formed in the system, when compared to the same process carried out in a small-scale batch reactor. Our results, obtained under controlled conditions using a solar simulator, were validated under natural sunlight, confirming the feasibility of our proposed intensification strategy.http://www.sciencedirect.com/science/article/pii/S2666821123000303Photo-FentonAdvanced oxidation processesPersulfateSolar-driven |
| spellingShingle | Bruno Ramos Lívia Babetto Ferreira Priscila Hasse Palharim Patrícia Metolina Carolina de Araújo Gusmão Antonio Carlos Silva Costa Teixeira A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pH Chemical Engineering Journal Advances Photo-Fenton Advanced oxidation processes Persulfate Solar-driven |
| title | A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pH |
| title_full | A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pH |
| title_fullStr | A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pH |
| title_full_unstemmed | A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pH |
| title_short | A continuous photo-Fenton-like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral pH |
| title_sort | continuous photo fenton like process using persulfate salts for the degradation of acetaminophen under solar irradiation at circumneutral ph |
| topic | Photo-Fenton Advanced oxidation processes Persulfate Solar-driven |
| url | http://www.sciencedirect.com/science/article/pii/S2666821123000303 |
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