Please use this identifier to cite or link to this item: http://earsiv.odu.edu.tr:8080/xmlui/handle/11489/2504
Title: Electrochemical oxidation of carbaryl on platinum and boron-doped diamond anodes using electro-Fenton technology
Authors: Celebi, Mutlu Sonmez
Hamdani, Mohamed
Oturan, Mehmet A.
Oturan, Nihal
Zazou, Hicham
Ordu Üniversitesi
0000-0002-8041-1090
0000-0002-8816-6763
0000-0002-8816-6763
Keywords: Advanced oxidation processesElectro-FentonCarbarylMineralizationWater treatment
AQUEOUS-MEDIUMTOXICITY EVOLUTIONFELT CATHODEBDD ANODEDEGRADATIONWATERREMOVALDYESAMOXICILLINPESTICIDE
Issue Date: 2015
Publisher: ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
Abstract: This study reports the degradation of carbaryl, the second most frequently found insecticide in water, by electro-Fenton process using Pt or boron-doped diamond (BDD) anodes coupled with a carbon felt cathode. The method is based on the reaction of electrochemically produced hydroxyl radicals with carbaryl molecules leading to oxidative degradation and mineralization of the pesticide. Kinetic studies revealed that the reaction of carbaryl with hydroxyl radicals was pseudo-first order under operating conditions of the process. The second order rate constant of the oxidation of carbaryl with hydroxyl radical was then determined as of 4.60 x 10(9) M-1 s(-1). Mineralization of the pesticide solutions were monitored using total organic carbon (TOC) analysis. Under optimum conditions, over 90% TOC removal rates were obtained in 2 h. Degradation products such as aromatic intermediates, short chain carboxylic acids and inorganic ions were identified and quantified using HPLC and GC-MS analyses. Based on these analyses and TOC measurements, a plausible mineralization pathway was proposed. (C) 2015 Elsevier B.V. All rights reserved.
URI: http://doi.org/10.1016/j.seppur.2015.07.025
http://earsiv.odu.edu.tr:8080/xmlui/handle/11489/2504
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