Production of aqueous chlorine diozide using un-divided electrochemical cell
Electrochemical generation of aqueous chlorine dioxide (ClO2) using an un-divided electrochemical cell with IrO2/Ti and RuO2/Ti anodes were performed under the laboratory-scale conditions. Effects of various operating parameters such as feed flow rate, feed solution pH, sodium chloride (NaCl) concentration, sodium chlorite (NaClO2) concentration, and the applied current density on the formation of ClO2 from NaClO2 and NaCl mixture were investigated. Around 350 ppm of ClO2 formed under optimized operating conditions of both IrO2/Ti and RuO2/Ti anode systems. Observed optimum conditions of IrO2/Ti anode system were; NaClO2=4.7 mM, NaCl=100 mM, initial feed pH=2.3, feed flow rate=60 ml/min and applied current density=0.05 A/cm2, and RuO2/Ti anode system were NaClO2=4.7 mM, NaCl=100 mM, initial feed pH=2.3, feed flow rate=90 ml/min and applied current density=0.05 A/cm2.The evaluated cell current efficiencies of IrO2/Ti and RuO2/Ti anodes were around 79.5 and 119%, and measured the energy consumptions were around 1.50 and 1.10 Wh/g, respectively.
Chlorine diozide electrochemical generation IrO2/Ti RuO2/Ti electrode un-divided cell
T. O. Kwon H. C. Roh B. B. Park I. S. Moon
JA Construction Co. Ltd., 1437-2, Younhyang-dong, Suncheon, Cheonnam, 540-951, Republic of Korea Department of Chemical Engineering, Sunchon National University, #315 Maegok-dong, Suncheon, 540-742
国际会议
2009 Beijing International Environmental Technology Conference(2009北京国际环境技术会议暨第五届“中、德、波环境技术研讨会)
北京
英文
683-691
2009-10-16（万方平台首次上网日期，不代表论文的发表时间）