DOI: 10.1016/j.watres.2018.02.037
Scopus记录号: 2-s2.0-85042222532
论文题名: Lindane degradation by electrooxidation process: Effect of electrode materials on oxidation and mineralization kinetics
作者: Dominguez C.M. ; Oturan N. ; Romero A. ; Santos A. ; Oturan M.A.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 135 起始页码: 220
结束页码: 230
语种: 英语
英文关键词: BDD
; Carbon felt
; Electrooxidation
; HydroxyL radicals
; Lindane
Scopus关键词: Anodes
; Boolean functions
; Carbon
; Cathodes
; Cyclohexane
; Doping (additives)
; Electrooxidation
; Felt
; Free radical reactions
; Insecticides
; Oxidation
; Reaction kinetics
; Solutions
; Carbon felts
; Comparative performance
; Dimensionally stable anodes
; Electro-oxidation process
; Hydroxyl radicals
; Lindane
; Organochlorine pesticides
; Pseudo-first order reactions
; Mineralogy
; boron
; carbon
; carboxylic acid
; chlorine
; diamond
; hydroxyl radical
; lindane
; platinum
; stainless steel
; water
; carbon dioxide
; lindane
; pesticide
; aqueous solution
; Article
; chlorination
; controlled study
; current density
; electrolysis
; electrooxidation process
; hydroxylation
; kinetics
; mineralization
; oxidation
; priority journal
; chemistry
; devices
; electrode
; kinetics
; oxidation reduction reaction
; procedures
; water management
; water pollutant
; Boron
; Carbon
; Carbon Dioxide
; Carboxylic Acids
; Diamond
; Electrodes
; Electrolysis
; Hydroxyl Radical
; Kinetics
; Lindane
; Oxidation-Reduction
; Pesticides
; Platinum
; Stainless Steel
; Water
; Water Pollutants, Chemical
; Water Purification
英文摘要: This study focuses on the effect of electrode materials on abatement of lindane (an organochlorine pesticide) by electrooxidation process. Comparative performances of different anodic (platinum (Pt), dimensionally stable anode (DSA) and boron-doped diamond (BDD)) and cathodic (carbon sponge (CS), carbon felt (CF) and stainless steel (SS)) materials on lindane electrooxidation and mineralization were investigated. Special attention was paid to determine the role of chlorine active species during the electrooxidation process. The results showed that better performances were obtained when using a BDD anode and CF cathode cell. The influence of the current density was assessed to optimize the oxidation of lindane and the mineralization of its aqueous solution. A quick (10 min) and complete oxidation of 10 mg L−1 lindane solution and relatively high mineralization degree (80% TOC removal) at 4 h electrolysis were achieved at 8.33 mA cm−2 current density. Lindane was quickly oxidized by in-situ generated hydroxyl radicals, (M(•OH)), formed from oxidation of water on the anode (M) surface following pseudo first-order reaction kinetics. Formation of chlorinated and hydroxylated intermediates and carboxylic acids during the treatment were identified and a plausible mineralization pathway of lindane by hydroxyl radicals was proposed. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112871
Appears in Collections: 气候减缓与适应
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作者单位: Dpto. Ingeniería Química, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria S/N, Madrid, 28040, Spain; Université Paris-Est, Laboratoire Géomatériaux et Environnement, EA 4508, UPEM, 5 Bd Descartes, Cedex 2, Marne-la-Vallée, 77454, France
Recommended Citation:
Dominguez C.M.,Oturan N.,Romero A.,et al. Lindane degradation by electrooxidation process: Effect of electrode materials on oxidation and mineralization kinetics[J]. Water Research,2018-01-01,135