Removal of organophosphorus pesticides from water by electrogenerated Fenton's reagent

Elodie Guivarch 1 Nihal Oturan 1 Mehmet A. Oturan 1
1 Géomatériaux
G2I - Géomatériaux et géologie de l'ingénieur
Abstract : Aqueous solutions of organophosphorus pesticides were completely mineralized via in-situ generated hydroxyl radicals (HO(center dot)) by the Electro-Fenton process. Formation of Fenton's reagent (H(2)O(2), Fe(2+)) was carried out by simultaneous reduction of O(2) and Fe(3+) on carbon cathode in acidic medium. The electrochemistry combined with Fenton's reagent provides an excellent way to continuously produce the hydroxyl radical, a powerful oxidant. We demonstrate the efficiency of the Electro-Fenton process to degrade three organophosphorus insecticides: malathion, parathion ethyl and tetra-ethyl-pyrophosphate (TEPP). Degradation kinetics and removals of chemical oxygen demand (COD) have been investigated. Here we show that the mineralization efficiency was over 80% for three organophosphorus pesticides.
Type de document :
Article dans une revue
Environmental Chemistry Letters, Springer Verlag, 2003, 1 (3), pp.165--168. 〈10.1007/s10311-003-0029-4〉
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Soumis le : mercredi 2 mai 2012 - 15:42:50
Dernière modification le : lundi 12 février 2018 - 18:26:02

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Elodie Guivarch, Nihal Oturan, Mehmet A. Oturan. Removal of organophosphorus pesticides from water by electrogenerated Fenton's reagent. Environmental Chemistry Letters, Springer Verlag, 2003, 1 (3), pp.165--168. 〈10.1007/s10311-003-0029-4〉. 〈hal-00693391〉

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