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La réaction de Fenton comme procédé de réhabilitation dans le traitement des eaux: application à la dégradation des hydrocarbures aromatiques polycycliques dans les eaux et les boues résiduaires

Abstract : This study is related to the application of Fenton's reagent to remediate matrices contaminated by polycyclic aromatic hydrocarbons (PAHs). In aqueous solution, the choice of the reagent implementation is important, in order to generate enough radicals to oxidate pollutants. Degradation of the organic compounds is possible, but a large difference in reactivity is observed between "alternant" and "nonalternant" PAHs (with a five carbon atoms cycle). Besides, if a few specific precautions are omitted, the PAHs can sorb onto the flask inside surface, and therefore not undergo oxidation. The results on sewage sludges show that under certain conditions (high reagent concentrations), the pollutants can be oxidised although they are adsorbed. Moreover, it appears that the matrix itself plays an important role, as the iron oxides seem to be able to decompose hydrogen peroxide, and thus initiate Fenton reaction. Its application to contaminated soils and sediments is also possible.
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https://pastel.archives-ouvertes.fr/pastel-00001190
Contributor : Ecole Agroparistech <>
Submitted on : Friday, April 8, 2005 - 8:00:00 AM
Last modification on : Sunday, June 7, 2020 - 8:46:34 AM
Long-term archiving on: : Saturday, November 26, 2016 - 9:15:53 PM

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  • HAL Id : pastel-00001190, version 1
  • PRODINRA : 245250

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Vanina Flotron. La réaction de Fenton comme procédé de réhabilitation dans le traitement des eaux: application à la dégradation des hydrocarbures aromatiques polycycliques dans les eaux et les boues résiduaires. Chimie. INAPG (AgroParisTech), 2004. Français. ⟨NNT : 2004INAP0009⟩. ⟨pastel-00001190⟩

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