Degradation of Reactive Red(B-3BF)dye wastewater by electrocatalysis coupled with ultraviolet light
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 titani-um cylinder cathode was adopted to optimize degradation time,cell voltage,initial pH,flow rate and initial Na2SO4 concentration with a UV lamp at 185 nm located in the center of the PbO2 netlike cyl-inder 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 Na2SO4 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.