title: Occurrence and Removal of Organic Micropollutants in Landfill Leachates Treated by Electrochemical Advanced Oxidation Processes.
abstract: In recent years, electrochemical advanced oxidation processes have been shown to be an effective alternative for the removal of refractory organic compounds from water. This study is focused on the effective removal of recalcitrant organic matter (micropollutants, humic substances, etc.) present in municipal solid waste landfill leachates. A mixture of eight landfill leachates has been studied by the electro-Fenton process using a Pt or boron-doped diamond (BDD) anode and a carbon felt cathode or by the anodic oxidation process with a BDD anode. These processes exhibit great oxidation ability due to the in situ production of hydroxyl radicals ((•)OH), a highly powerful oxidizing species. Both electrochemical processes were shown to be efficient in the removal of dissolved total organic carbon (TOC) from landfill leachates. Regarding the electro-Fenton process, the replacement of the classical anode Pt by the anode BDD allows better performance in terms of dissolved TOC removal. The occurrence and removal yield of 19 polycyclic aromatic hydrocarbons, 15 volatile organic compounds, 7 alkylphenols, 7 polychlorobiphenyls, 5 organochlorine pesticides, and 2 polybrominated diphenyl ethers in landfill leachate were also investigated. Both electrochemical processes allow one to reach a quasicomplete removal (about 98%) of these organic micropollutants.
authors.affiliation: Laboratoire Géomatériaux et Environnement, Université Paris-Est, EA 4508, UPEM , 5 Boulevard Descartes, Marne-la-Vallée 77454 Cedex 2, France.
authors.forename: Nihal
authors.initials: N
authors.lastname: Oturan
authors.affiliation: Laboratoire Géomatériaux et Environnement, Université Paris-Est, EA 4508, UPEM , 5 Boulevard Descartes, Marne-la-Vallée 77454 Cedex 2, France.
authors.forename: Eric D
authors.initials: ED
authors.lastname: van Hullebusch
authors.affiliation: Department of Environmental Engineering, Wuhan University , P.O. Box C319 Luoyu Road 129#, Wuhan 430079, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Hydrosystems and Bioprocesses Research Unit, IRSTEA , 1 Rue Pierre-Gilles de Gennes, CS 10030, Antony F-92761 Cedex, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Mazeas
authors.affiliation: Environnements et Paléoenvironnements Océaniques et Continentaux, EPOC-UMR 5805 CNRS, Laboratoire de Physico-et Toxico-Chimie de l'environnement (LPTC), Université de Bordeaux, Bâtiment A12, 351 Cours de la Libération, 33405 Talence, France.
authors.forename: Hélène
authors.initials: H
authors.lastname: Budzinski
authors.affiliation: Environnements et Paléoenvironnements Océaniques et Continentaux, EPOC-UMR 5805 CNRS, Laboratoire de Physico-et Toxico-Chimie de l'environnement (LPTC), Université de Bordeaux, Bâtiment A12, 351 Cours de la Libération, 33405 Talence, France.
authors.forename: Karyn
authors.initials: K
authors.lastname: Le Menach
authors.affiliation: Laboratoire Géomatériaux et Environnement, Université Paris-Est, EA 4508, UPEM , 5 Boulevard Descartes, Marne-la-Vallée 77454 Cedex 2, France.
authors.forename: Mehmet A
authors.initials: MA
authors.lastname: Oturan
mesh_terms: D002244:Carbon / Q000302:isolation & purification; D004560:Electricity; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D005374:Filtration; D006861:Hydrogen Peroxide / Q000737:chemistry; D007501:Iron / Q000737:chemistry; D009930:Organic Chemicals / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*
chemical_list: C045076:Fenton's reagent; D009930:Organic Chemicals; D014874:Water Pollutants, Chemical; D002244:Carbon; D006861:Hydrogen Peroxide; D007501:Iron