超声强化Ti/RuO2-IrO2阳极对焦化废水中有机物的深度降解  

Deep degradation of organic compounds in coking wastewater by ultrasound enhanced Ti/RuO2-IrO2 anode electrode

作　　者：刘奕杰 常鑫 王维大[2] LIU Yi-jie;CHANG Xin;WANG Wei-da(Northwest Engineering and Research Incorporation Limited of China Metallurgical Group,Baotou 014010,China;School of Energy and Environment of Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]中冶西北工程技术有限公司,内蒙古包头014010 [2]内蒙古科技大学能源与环境学院,内蒙古包头014010

出　　处：《应用化工》2020年第5期1148-1151,共4页Applied Chemical Industry

基　　金：内蒙古自治区科技计划资助项目(201702100);包头科技计划重点领域技术攻关项目(2017Z1009)。

摘　　要：以Ti/RuO2-IrO2电极为阳极,通过超声-电化学氧化对焦化废水生化出水进行电解处理,探究了电流密度、反应温度、初始pH值等对超声-电化学氧化处理出水中有机物降解程度的影响。结果表明,当电流密度为15 mA/cm2,温度为25℃,pH为7时,超声-电化学氧化处理出水中COD和TOC去除率分别为84.5%和75.0%,比单一使用电化学氧化处理出水COD、TOC去除率分别提高了8.5和6.0个百分点;低温和弱酸性更有利于超声协同电化学反应的高效运行。Ti/RuO2-IrO2 electrode was applied as the anode,the wastewater was treated by ultrasonic-electrochemical oxidation system.The effects of current density,reaction temperature and initial pH on the degradation of organic compounds in the coking wastewater have been investigated.The results showed that the removal rate of COD and TOC in the study treated by ultrasonic-electrochemical oxidation was 84.5%and 75.0%,when the current density was 15 A/cm2,reaction temperature was 25℃,and the pH was 7.And the removal rate of COD and TOC has increased by 8.5 and 6.0 percentage points respectively than that treated by single electrochemical oxidation treatment system.It also found that low temperature and a weak acidity reaction environment were advantageous to the efficient operation of the ultrasound electrochemical reactions system.

关 键 词：焦化废水 电化学氧化:超声强化 

分 类 号：TQ153.6[化学工程—电化学工业] X703.1[环境科学与工程—环境工程]