Low-cost activated carbon for adsorption and heterogeneous ozonation of phenolic wastewater
| Autor: | Marie-Hélène Manero, Romain Richard, Affoué Tindo Sylvie Konan, Caroline Andriantsiferana, Kouassi Benjamin Yao |
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| Přispěvatelé: | Institut national polytechnique Félix Houphouët-Boigny, Institut National Polytechnique Félix Houphouët-Boigny, Laboratoire de Génie Chimique (LGC), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique Felix Houphouët-Boigny - INP-HB (IVORY COAST), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Laboratoire de Génie Chimique - LGC (Toulouse, France), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Ozone
Radical 02 engineering and technology Wastewater treatment 010501 environmental sciences 01 natural sciences Scavenger chemistry.chemical_compound Adsorption [CHIM.GENI]Chemical Sciences/Chemical engineering 020401 chemical engineering Ozonation medicine Organic chemistry Génie chimique 0204 chemical engineering Génie des procédés 0105 earth and related environmental sciences Low-cost activated carbon Chemistry [SDE.IE]Environmental Sciences/Environmental Engineering 2 4-Dimethylphenol 6. Clean water 2 4-Dimethylphenol Catalytic oxidation Wastewater Sewage treatment [CHIM.OTHE]Chemical Sciences/Other Activated carbon medicine.drug |
| Zdroj: | Desalination and Water Treatment Desalination and Water Treatment, FHF, 2019, 163, pp.336-346. ⟨10.5004/dwt.2019.24479⟩ |
| ISSN: | 1944-3994 1944-3986 |
| Popis: | International audience; This work is aimed at elaborating an innovative material from palm tree waste that can be used in industrial applications for adsorption and catalytic oxidation. This low-cost activated carbon, elaborated from Borassus palm tree waste (bpAC) showed textural and chemical properties comparable with common activated carbon. Moreover, it demonstrated interesting behaviour when it was coupled with ozone to remove a phenolic compound, 2,4-dimethylphenol (2,4-DMP). This refractory model molecule was removed two times faster in the presence of bpAC and was achieved in only 7 min. The total organic carbon (TOC) removal by only adsorption on bpAC was satisfactory with a value of 93.8% after 8 h. Nevertheless, the most interesting result concerned the TOC removal during catalytic ozonation which increased from 26% (single ozonation, i.e., without bpAC) to 91% in the presence of bpAC. The addition of a radical scavenger (tert-butanol) showed that hydroxyl radicals were involved during ozonation with bpAC. Moreover, a kinetics study highlighted that both radical and molecular mechanisms were acting in heterogeneous reaction. All the results were finally validated by treating real wastewater spiked with 2,4-DMP, confirming the ability of this bpAC to enhance the treatment of phenolic wastewaters. |
| Databáze: | OpenAIRE |
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