电解反应器电极排列方式研究

提高电极表面反应物扩散速率以及提高反应器效率是强化电解反应器处理能力、降低电耗的重要途径,安装中心推进式搅拌叶轮、辅射状电极的新型电解反应器可达到这2个目的.数学推导证明,新型电解反应器与同心圆状电极电解反应器效率比大于2.利用研制的反应器效率为9.9 m2/m3的新型电解槽,完成了电镀工业高质量浓度含氰废水处理的工业试验,废水氰化物平均质量浓度为17 000 mg/L,平均电解时间为17.7 h,氰化物去除率为99.6%,处理每kg CN-耗电15.1 kW·h.2年多的工业应用表明,带中心推进式搅拌叶轮的辐射状电极电解槽,具有操作容易、氰化物去除率高、回收金属方便、处理成本低等优点,其性能优于常规的同心圆状电极电解槽. 

Study on the Electrodes Arrangement Styles of Electrolysis Reactor

To increase the reactant diffusing velocity on the electrode’s surfaces and the efficiency of reactor is the important route to enhance the reactor treatment ability and reduce electricity consumption. New style electrolysis reactor can obtain good purpose with propeller stirrer fixed on the reactor center and electrodes arrangement spokewise. The reactor efficiency ratio of the reactor is more than twice that of traditional electrolysis reactor with homocentric circle arrangement electrodes. The new style electrolysis reactor developed with the reactor efficiency 9.9 is used to treat wastewater produced in electroplating industries containing high concentration cyanide, with the average cyanide concentration of 17 000 mg/L, electrolysis time of 17.7 h, cyanide destroying rate of 99.6% and power consumption of 15.1 kW·h per kg CN- treated. More than two years of industrial practice indicates that new style electrolysis reactor has excellent characteristics: easy operation, higher cyanide destroying ratio, convenience for recovered metals collection and low cost. Its performance is better than traditional electrolysis tanks.