赤泥基粒子电极制备及三维电催化氧化预处理焦化废水应用  

Preparation of Red Mud Based Particle Electrode and Application of Three Dimensional Electrocatalytic Oxidation in Coking Wastewater Pretreatment

作　　者：安路阳[1] 张立涛[1] 付俐俐 韩洪庆 崔晓东 卫皇曌[3] AN Luyang;ZHANG Litao;FU Lili;HAN Hongqing;CUI Xiaodong;WEI Huangzhao(Engineering Research Center for Iron and Steel Industry Wastewater Advanced Treatment Technology of Liaoning Province,Sinosteel Anshan Research Institute of Thermo-Energy Co.,Ltd.,Anshan 114044,China;Anshan Municipal Bureau of Industry and Information Technology,Anshan 114002,China;Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China)

机构地区：[1]中钢集团鞍山热能研究院有限公司,辽宁省钢铁行业废水深度处理技术工程研究中心,辽宁鞍山114044 [2]鞍山市工业和信息化局,辽宁鞍山114002 [3]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《净水技术》2024年第11期116-124,156,共10页Water Purification Technology

基　　金：辽宁省自然科学基金(2019-ZD-0894)。

摘　　要：利用赤泥、田菁粉和碳粉在高温焙烧条件下制备电催化性能良好的赤泥基粒子电极。文章探讨了赤泥基粒子电极在三维电催化处理焦化废水过程中的电催化特性。研究结果表明:350℃焙烧温度制备的粒子电极在填充量为废水体积80%、电流密度为100 A/m^(2)、反应时间为75 min的三维电催化条件下,对焦化废水COD_(Cr)和挥发酚的去除率分别达到66.60%和81.79%,处理1 m^(3)焦化废水耗电量为0.11 k W·h。该三维电催化系统经过480 h连续运行,COD_(Cr)的去除率大于60%,挥发酚的去除率大于76%,稳定性较好,电催化性能优于二维电催化氧化体系。Red mud based particle electrode with good electrocatalytic performance was prepared by red mud,sesbania powder and carbon dust under high temperature.The electrocatalytic characteristics of red mud based particle electrode in three-dimensional electrocatalytic oxidation treatment of coking wastewater were investigated.The results showed that the removal rate of COD_(Cr) and volatile phenol were 66.60%and 81.79%under the current density of 100 A/m^(2),reaction time of 75 min and the particle electrode filling amount was 80%of the wastewater volume by the three-dimensional electrocatalytic oxidation system using the particle electrode which was prepared at roasting temperature of 350℃.The power consumption was 0.11 kW·h/m^(3) coking wastewater.The threedimensional electrocatalytic oxidation system after 480 h continuous operation,the COD_(Cr) removal rate was greater than 60%and volatile phenol was greater than 76%,the stability and the electrocatalytic performance were superior to the two-dimensional electrocatalytic oxidation system.

关 键 词：赤泥 粒子电极 焦化废水 预处理 三维电催化 

分 类 号：TQ09[化学工程]