Destruction of Cyanide in Aqueous Solution by Electrochemical Oxidation Method

作者：Xu Haiqing^*; Li Aiping; Feng Liangdong; Cheng Xiaochun; Ding Shijie

来源：International Journal of Electrochemical Science, 2012, 7(8): 7516-7525.

• Electrochemical oxidation
• Destruction of Cyanide
• pH
• Current density

This work was to investigate the electrolytic oxidation of cyanide solution with the Ti/SnO2-Sb-Ce anode under different conditions, such as initial pH, current density and flow rate. The results show that the destruction of cyanide on the anode is more favorably and completely conducted in strong alkaline solution. The conversion of cyanide and COD removal are 98.2 % and 84.2 % at initial pH 13 at reaction time of 4 h, but 69.5 % and 48.2 % at initial pH 6, respectively. The conversion of cyanide, COD removal and current efficiency (CE) increase as the flow rate and applied current density increase, respectively, but the higher flow rate, the smaller is the increment extent of conversion of cyanide, COD removal and CE. The CE for destruction of cyanide was proved to be inversely proportional to the applied current density.

• 出版日期2012-8
• 单位淮阴工学院