Enhancement of biodegradability of o-toluidine effluents by electro-assisted photo-Fenton treatment

doi:10.1016/j.psep.2016.12.011

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標題:	Enhancement of biodegradability of o-toluidine effluents by electro-assisted photo-Fenton treatment
作者:	Garcia-Segura, Sergi Anotai, Jin Singhadech, Somporn Lu, Ming-Chun
貢獻者:	Chia Nan Univ Pharm & Sci, Dept Environm Resources Management King Mongkuts Univ Technol Thonburi, Faulty Engn, Dept Environm Engn, Natl Ctr Excellence Environm & Hazardous Waste Ma Chulalongkorn Univ, Dept Int Postgrad Programs Environm Management Ha, Bangkok 10330, Thailand
關鍵字:	Photo-Fenton Anodic oxidation RuO2/IrO2 Dimensional Stable Anodes (DSA) Water treatment technologies Persistent organic pollutants Electrochemical advanced oxidation processes o-toluidine reaction pathway
日期:	2017-02
上傳時間:	2018-11-30 15:56:09 (UTC+8)
出版者:	Inst Chemical Engineers
摘要:	The treatment of highly recalcitrant and non-biodegradable solutions of 1 mM of o-toluidine has been comparatively treated by different water treatment technologies based on Fenton's reaction: conventional Fenton process, electro-assisted Fenton process and electro-assisted photo-Fenton process. The pollutant was mainly oxidized by the homogeneous (OH)-O-center dot released in situ by the Fenton's reaction. The electro-assisted photo-Fenton technology demonstrated better performance due to the faster electro-regeneration of iron(II) and the coupled photolysis of several by-products such carboxylic acids attaining complete o-toluidine removal in 60 min of treatment. The study of the biodegradability enhancement after the treatment achievieng values near to 0.4 of BOD5/COD ratio assessed the feasible application of electro-assisted photo-Fenton process as pre-biological treatment. In addition, a reaction pathway for o-toluidine mineralization by electro-assisted photo-Fenton's reaction is proposed. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
關聯:	Process Safety and Environmental Protection, v.106, pp.60-67
显示于类别:	[環境資源管理系(所)] 期刊論文

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