摘要
为提升低浓度COD废水处理效果,介绍了一种基于三维电化学原理的低浓度COD废水电化学处理方法。研究发现,随着粒子电极负载量的提高,COD去除率整体呈先上升再下降的趋势,能耗整体呈先下降再提高的趋势,粒子电极负载量为7.72%时,COD去除率与能耗最佳;随着粒子电极质量的提高,COD去除率整体呈先上升再下降的趋势,能耗整体呈先下降再上升的趋势,粒子电极质量为12 g时,COD去除率与能耗综合效果最佳;随着电流密度的提高,COD去除率与能耗整体呈先上升再下降的趋势,能耗整体呈先下降再提高的趋势,电流密度为10m A/cm^(2)时,COD去除率与能耗综合效果最佳;随着电解时间的提高,COD去除率呈逐渐提高的趋势,当电解时间达到150 min时,COD去除率可以达到93%左右。
In order to improve the treatment effect of low concentration COD wastewater,a low concentration COD wastewater electrochemical treatment method based on three-dimensional electrochemical principle is introduced.Research has found that with the increase of particle electrode loading,the COD removal rate shows an overall trend of first increasing and then decreasing,and the energy consumption shows an overall trend of first decreasing and then increasing.When the particle electrode loading is 7.72%,the COD removal rate and energy consumption are optimal.With the improvement of particle electrode quality,the COD removal rate shows an overall trend of first increasing and then decreasing,and the energy consumption shows an overall trend of first decreasing and then increasing.When the particle electrode quality is 12 g,the comprehensive effect of COD removal rate and energy consumption is the best;With the increase of current density,the COD removal rate and energy consumption show an overall trend of first increasing and then decreasing,and the energy consumption shows an overall trend of first decreasing and then increasing.When the current density is 10 mA/cm^(2),the comprehensive effect of COD removal rate and energy consumption is the best.With the increase of electrolysis time,the COD removal rate shows a gradually increasing trend.When the electrolysis time reaches 150 minutes,the COD removal rate can reach about 93%.
作者
闫旭平
Yan Xuping(State-owned Assets Registration Center of Mount Wutai Scenic Area,Xinzhou Shanxi 035515,China)
出处
《山西化工》
2025年第9期263-265,共3页
Shanxi Chemical Industry
关键词
COD
电化学处理
三维电化学
粒子电极
COD
electrochemical treatment
three-dimensional electrochemistry
particle electrode
