| Title |
Electrochemical treatment the dyeing wastewater by an Ti/IrO2 electrode |
| Authors |
유재정 ( Yu Jae Jeong ) ; 민경석 ( Min Gyeong Seog ) ; 박정민 ( Park Jeong Min ) ; 황동진 ( Hwang Dong Jin ) |
| Keywords |
Electrochemical treatment; dyeing wastewater; reactive dyes; COD reduction |
| Abstract |
Reactive dyeing wastewater, a toxic and refractory pollutant, was treated by an electrochemical method using Ti/IrO₂ as anode and Stainless Steel 316 as cathode. A number of experiments were carried out in a batch and continuous system. Artificial samples and samples from mill were used for the treatment. Operation parameters, such as electrode shape(net or plate), the content of free chlorine evolution, effect of electrolyte, the effect of supporting electrolyte concentration, current density, pH and electrode gab were investigated for their influences on COD and color removal efficiencies during electrolysis. Finally, a continuous system using wastewater sampled from mill was operated. Results show that important factors for the increase in the pollutants removal efficiency were electrical properties of the electrode, the kind and concentration of electrolyte, and current density. The result indicate that the electrochemical treatment method is effective for the removal of color and COD from reactive dyeing wastewater. |