三维电极电化学反应器对有机废水的降解研究

电化学（中英文） ›› 2002, Vol. 8 ›› Issue (3): 327-332.

三维电极电化学反应器对有机废水的降解研究

何春,安太成,熊亚,舒东,胡慧玲,朱锡海

中山大学化学与化学工程学院,中山大学化学与化学工程学院,中山大学化学与化学工程学院,肇庆学院化学系,中山大学化学与化学工程学院,中山大学化学与化学工程学院广东广州510275,肇庆学院化学系,广东肇庆526061 ,广东广州510275 ,广东广州510275 ,广东肇庆526061 ,广东广

收稿日期:2002-08-28 修回日期:2002-08-28 出版日期:2002-08-28 发布日期:2002-08-28

Electrochemical Degradation of Organic Wastewater by Three-Dimensional Electrode Reactor

HE Chun 1,2* ,AN Tai_cheng 1,XIONG Ya 1* ,SHU Dong 2,HU Hui_ling 1,ZHU Xi_hai 1

(1.School of Chemistry and Chemical Engineering,Zhongshan University, Guangzhou 510275,China; 2.Department of Chemistry,Zhaoqing College, Zhaoqing 526061,Chin

Received:2002-08-28 Revised:2002-08-28 Published:2002-08-28 Online:2002-08-28

摘要/Abstract

摘要： 本文提出一种基于三维电极电化学反应器处理有机废水的新技术 ,结果表明 :该反应器能有效地去除苯胺 ,但其去除率受外加电压、溶液中Fe2 +的浓度、pH值及处理时间 (t)的影响较大 .该项技术处理有机废水效果明显 ,主要是基于电致过氧化氢 ,在Fe2 +存在情况下迅速生成对有机物有很强氧化作用的羟基自由基 .通过ESR法测出了在该电化学反应器处理废水过程中产生的羟基自由基

关键词: 三维电极, 电化学降解, 有机废水, 羟基自由基

Abstract: The electrochemical degradation of aniline was investigated using a novel electrochemical reactor, three_dimensional electrode reactor. The experimental results indicated that the reactor could efficiently remove aniline. The removal efficiency could be attributed to a combination of direct and indirect electrochemical reactions,that is,anodic oxidation and oxidation of electrogenerated H 2O 2 and hydroxyl radicals generated in electro_Fenton process. It was also observed that the removal efficiency was significantly dependent on applied voltage,Fe 2+ concentration,pH value and electrolysis time. In the experimental range they all have a positive effect on the removal efficiency except for pH value. Furthermore,hydroxyl radicals generated in electro_Fenton process was confirmed whith the method of spin_trapping ESR.

Key words: Three_dimensional electrode, Electrochemical degradation, Organic waste water, OH radicals.

中图分类号:

X703

何春,安太成,熊亚,舒东,胡慧玲,朱锡海. 三维电极电化学反应器对有机废水的降解研究[J]. 电化学（中英文）, 2002, 8(3): 327-332.

HE Chun 1,2* ,AN Tai_cheng 1,XIONG Ya 1* ,SHU Dong 2,HU Hui_ling 1,ZHU Xi_hai 1 . Electrochemical Degradation of Organic Wastewater by Three-Dimensional Electrode Reactor[J]. Journal of Electrochemistry, 2002, 8(3): 327-332.

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