电化学在含2-氯烟酸废水处理中的应用研究

Application study of electrochemical technology in the treatment of wastewater containing 2-chloronicotinic acid

MEP-凯森电化学技术主要由负载稀有贵金属的阳极、304材质的阴极和载有稀有贵金属的活性炭的第三电极组成。利用该技术对含2-氯烟酸的废水进行处理,通过单一变量法调整电压、pH值、停留时间和第三电极填充量,观察化学需氧量(COD)的去除率和BOD_5/COD比值(B/C)的变化,以确定最优处理条件。研究表明,结合经济效益,电压14 V、pH值3、停留时间60 min、第三电极填充量40%是MEP-凯森电化学技术处理含2-氯烟酸废水的最优条件,COD的去除可达71%以上,B/C提高到0.37。

MEP-KaiSen electrochemical technology,which mainly consists of an anode loaded with rare precious metals,a cathode made of 304 material,and a third electrode with rare precious metal-loaded activated carbon.This technology is used to treat wastewater containing 2-chloro-3-pyridinecarboxylic acid.By adjusting the voltage,pH,residence time,and the filling amount of the third electrode using the single variable method,the changes in the COD removal rate and the B/C are observed to determine the optimal treatment conditions.The study shows that,considering economic benefits,a voltage of 14 V,a pH value of 3,a residence time of 60 minutes,and a 40%filling amount of the third electrode are the optimal conditions for the MEP-KaiSen electrochemical technology to treat wastewater containing 2-chloro-3-pyridinecarboxylic acid,with COD removal of over 71%and an increase in B/C to 0.37.