| Title |
Comparison of Dye Removal Performance of Direct and Indirect Oxidation Electrode |
| Authors |
김동석 ( Dong Seog Kim ) ; 박영식 ( Young Seek Park ) |
| Keywords |
Direct oxidation; Dye; Electrode; Electrolysis; Indirect oxidation |
| Abstract |
This study has carried out to evaluate the performance of direct and indirect oxidation electrode for the purpose of decolorization of Rhodamine B (RhB) in water. Four kinds of electrodes were used for comparison: Pt and JP202 (indirect oxidation electrode), Pb and boron doping diamond (BDD, direct oxidation electrode). The effect of applied current (0.5~2.5 A), electrolyte type (NaCI, KC1, HCI, Na2SO4 and H2SO4) and electrolyte concentration (0,5~2.5 g/L), solution pH (3~11) and initial RhB concentration (25~125 mg/L) were evaluated. Experimental results showed that RhB removal efficiency were increased with increase of current, NaC1 dosage and decrease of the pH. However, the effect of operating parameter on the RhB removal were different with the electrode type. JP202 electrode was the best electrode from the point of view of performance and energy consumption. The order of removed RhB concentration per energy lie in: JP202>Pt>Pb>BDD. |