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Environmental Chemistry Letters

, Volume 1, Issue 3, pp 165–168 | Cite as

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

  • Elodie Guivarch
  • Nihal Oturan
  • Mehmet A. OturanEmail author
Original Paper

Abstract

Aqueous solutions of organophosphorus pesticides were completely mineralized via in-situ generated hydroxyl radicals (HO·) by the Electro-Fenton process. Formation of Fenton's reagent (H2O2, Fe2+) was carried out by simultaneous reduction of O2 and Fe3+ 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.

Keywords

AOP Electro-Fenton Fenton's reagent Hydroxyl radical Organophosphorus pesticides 

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Elodie Guivarch
    • 1
  • Nihal Oturan
    • 1
  • Mehmet A. Oturan
    • 1
    Email author
  1. 1.Equipe chimie de l'environnement, Laboratoire des Géomatériaux, CNRS FRE 2455Université de Marne-La-Vallée, Bât IFIMarne-La-Vallée France

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