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Article Dans Une Revue Environmental Chemistry Letters Année : 2003

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

Elodie Guivarch
  • Fonction : Auteur
Nihal Oturan
Mehmet A. Oturan

Résumé

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.

Dates et versions

hal-00693391 , version 1 (02-05-2012)

Identifiants

Citer

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