دورية أكاديمية
Degradation of chlordecone and beta-hexachlorocyclohexane by photolysis, (photo-)fenton oxidation and ozonation
| العنوان: | Degradation of chlordecone and beta-hexachlorocyclohexane by photolysis, (photo-)fenton oxidation and ozonation |
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| المؤلفون: | Cruz González, Germán, Julcour-Lebigue, Carine, Chaumat, Hélène, Bourdon, Valérie, Ramon-Portugal, Felipe, Gaspard, Sarra, Jáuregui-Haza, Ulises J., Delmas, Henri |
| المساهمون: | Centre National de la Recherche Scientifique - CNRS (FRANCE), Ecole Nationale Supérieure de Formation de l'Enseignement Agricole - ENSFEA (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Universidad de La Habana - UH (CUBA), Université des Antilles et de la Guyane (FRANCE), Connaissance et Valorisation : Chimie des matériaux Environnement, Energie - COVACHIM - M2E (Pointe à Pitre, Antilles) |
| بيانات النشر: | Taylor & Francis Online |
| سنة النشر: | 2018 |
| المجموعة: | OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse) |
| مصطلحات موضوعية: | Génie chimique, Génie des procédés, Water treatment, Advanced oxidation process, UV treatment, Fenton reaction, Ozonation, Pesticide, Micropollutant, Chlordecone, HCH |
| الوصف: | Intensive use of chlorinated pesticides from the 1960s to the 1990s has resulted in a diffuse contamination of soils and surface waters in the banana-producing areas of the French West Indies. The purpose of this research was, for the first time, to examine the degradation of two of these persistent pollutants – chlordecone (CLD) and beta-hexachlorocyclohexane (β-HCH) in 1 mg L−1 synthetic aqueous solutions by means of photolysis, (photo-) Fenton oxidation and ozonation processes. Fenton oxidation is not efficient for CLD and yields less than 15% reduction of β-HCH concentration in 5 h. Conversely, both molecules can be quantitatively converted under UV-Vis irradiation reaching 100% of degradation in 5 h, while combination with hydrogen peroxide and ferrous iron does not show any significant improvement except in high wavelength range (>280 nm). Ozonation exhibits comparable but lower degradation rates than UV processes. Preliminary identification of degradation products indicated that hydrochlordecone was formed during photo-Fenton oxidation of CLD, while for β-HCH the major product peak exhibited C3H3Cl2 as most abundant fragment. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://oatao.univ-toulouse.fr/21147/1/Cruz_21147.pdfTest; HAL : hal-01950009; Cruz González, Germán and Julcour-Lebigue, Carine and Chaumat, Hélène and Bourdon, Valérie and Ramon-Portugal, Felipe and Gaspard, Sarra and Jáuregui-Haza, Ulises J. and Delmas, Henri. Degradation of chlordecone and beta-hexachlorocyclohexane by photolysis, (photo-)fenton oxidation and ozonation. (2018) Journal of Environmental Science and Health, Part B, 53 (2). 121-125. ISSN 0360-1234 |
| DOI: | 10.1080/03601234.2017.1388682 |
| الإتاحة: | https://doi.org/10.1080/03601234.2017.1388682Test https://oatao.univ-toulouse.fr/21147Test/ https://oatao.univ-toulouse.fr/21147/1/Cruz_21147.pdfTest |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.92827EAF |
| قاعدة البيانات: | BASE |
| DOI: | 10.1080/03601234.2017.1388682 |
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