电催化耦合紫外光降解活性红(B-3BF)染料废水  

Degradation of Reactive Red(B-3BF)dye wastewater by electrocatalysis coupled with ultraviolet light

作　　者：邱建根 王超 李永强[2] 万军民[3] 胡毅[2] 岑红阳[2] Qiu Jiangen;Wang Chao;Li Yongqiang;Wan Junmin;Hu Yi;Cen Hongyang(Tongxiang Research Institute Co.,Zhejiang Sci-Tech University,Jiaxing 314500,China;College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310018,China;School of Materials Science and Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学桐乡研究院有限公司,浙江嘉兴314500 [2]浙江理工大学纺织科学与工程学院(国际丝绸学院),杭州310018 [3]浙江理工大学材料科学与工程学院,杭州310018

出　　处：《环保科技》2024年第4期16-21,共6页Environmental Protection and Technology

基　　金：浙江理工大学桐乡研究院博士后基金项目(TYY202301)。

摘　　要：针对纺织行业所广泛使用的活性红(B-3BF),相关降解方法仍需要进一步研究。本文研究了电催化耦合紫外光降解B-3BF染料废水的性能,采用具有钛圆柱阴极的圆柱形电解槽,其中185 nm波长紫外光灯位于PbO_(2)网状圆柱阳极的中心,优化了降解时间、槽电压、流速、初始pH和初始Na_(2)SO_(4)浓度。实验结果表明,在Na_(2)SO_(4)初始浓度为24.0 mmol/L、染料初始浓度为20 mg/L的条件下,采用电催化耦合185 nm波长紫外光进行降解,B-3BF染料的降解率可达到96.81%,相应的耗电量为10.50 kWh/kg。此外,电催化耦合185 nm波长紫外光对于B-3BF染料废水的降解效果优于单独电催化降解和单独紫外光降解。因此,电催化耦合紫外光有望在工业应用中降解B-3BF染料废水。As being widely used in textile industry,Reactive Red(B-3BF)still needs further study on the related degradation methods.In order to investigate the performances of degradation of B-3BF dye wastewater by electrocatalysis coupled with ultraviolet light,a cylinder electrolyzer with a titanium cylinder cathode was adopted to optimize degradation time,cell voltage,initial pH,flow rate and initial Na_(2)SO_(4) concentration with a UV lamp at 185 nm located in the center of the PbO_(2) netlike cylinder anode.The experimental results illustrated that the degradation percentage of B-3BF dye could reach 96.81%with the electrical consumption of 10.50 kWh/kg by electrochemical degradation under UV at 185 nm,the initial Na_(2)SO_(4) concentration of 24.0 mmol/L and the initial dye concentration of 20 mg/L.Additionally,removal performances of B-3BF dye wastewater by electrocatalysis coupled with ultraviolet light at 185 nm was more effective than those of electrochemical degradation alone and ultraviolet light at 185 nm alone.Therefore electrocatalysis coupled with ultraviolet light at 185 nm was promising for the degradation of B-3BF dye wastewater in the industrial application.

关 键 词：电催化 紫外光 染料废水 降解率 电耗 

分 类 号：X703.1[环境科学与工程—环境工程]