三维电极电化学反应器对有机废水的降解研究  

Electrochemical Degradation of Organic Wastewater by Three-Dimensional Electrode Reactor

作　　者：何春[1] 安太成[1] 熊亚[1] 舒东[2] 胡慧玲[1] 朱锡海[1] 

机构地区：[1]中山大学化学与化学工程学院,广东广州510275 [2]肇庆学院化学系,广东肇庆526061

出　　处：《电化学》2002年第3期327-332,共6页Journal of Electrochemistry

基　　金：国家自然科学基金 (2 99770 30 );广东省自然科学基金 (990 2 74 );广东省攻关项目 (A30 30 5 0 2 );河南省环境科学与工程重点学科开放实验室资助

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 .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.

关 键 词：电化学反应器 三维电极 电化学降解 有机废水 羟基自由基 废水处理 

分 类 号：X703[环境科学与工程—环境工程]