采用电导率法研究了电絮凝系统去除重金属锌的效率

N. Al-Rubaiey, Mohammed G. Al-Barazanjy
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引用次数: 7

摘要

电絮凝已成为污水处理的一个快速发展的领域,因为它能够去除通常难以通过过滤或化学处理系统去除的污染物。通过电导率测量,研究了三种电絮凝系统对模拟工业废水中锌的去除效率。系统(1)只有两个循环水平平电极,系统(2)有两个17孔循环水平电极,系统(3)有两个循环水平电极,其中一个由丝网制成。所有的电极都使用了铝金属。研究了外加电压、初始锌浓度、电极间距和温度等参数对去除率的影响。从结果中可以看出,所使用的配置系统类型对去除效率有显著影响。用带孔的铝电极得到了最好的结果。电导率随温度的升高而随时间的变化而降低。最后考察了超声波对电凝过程的影响。综上所述,利用电化学技术可以成功地去除重金属离子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study the efficiency of electrocoagulation system using conductivity measurements for the removal of zinc heavy metal
Electrocoagulation has turned out to be a rapidly growing area of wastewater treatment due to its ability to remove contaminants that are generally more difficult to remove by filtration or chemical treatment systems. The removal efficiency of zinc from a simulated industrial wastewater of three electrocoagulation systems has been studied depending on conductivity measurements. System (1) has only two circulated horizontal flat electrodes, system (2) has two circulated horizontal electrodes with 17 holes and system (3) has two circulated horizontal electrodes and one of them is made of wire mesh. Aluminum metal has been used in all electrodes. The effects of various parameters such as applied voltage, initial Zn concentration, electrodes distance and temperature on the removal efficiency have been investigated. It has been seen from the results that removal efficiency has been significantly affected by the type the configuration system used. The best results obtained using Al-electrodes with holes. The conductivity has been decreased with increasing temperature as a function of time. Finally the ultrasonic effect on the electrocoagulation process has also been examined. In conclusion, the removal of heavy metal ions can be successfully accomplished by using electrochemical technique.
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