废水脉冲电解处理节能高效的原因分析  

Analysis of causes of energy conservation and high efficiency of pulse-electrolysis in wastewater treatment

作　　者：陈彬[1] 朱又春[1] 李彦旭[1] 陈江耀[1] 

机构地区：[1]广东工业大学环境科学与工程学院,广州510090

出　　处：《环境工程学报》2008年第1期23-26,共4页Chinese Journal of Environmental Engineering

基　　金：广州市科技计划资助项目(2002Z3-E0301)

摘　　要：将脉冲电源和直流电源分别作为废水电解处理的电源，试验探明其对废水电解处理的电能消耗和COD去除率的影响，并分析废水脉冲电解处理节能高效的原因。试验结果表明，脉冲电流相对直流电流能够更加有效减缓电极的极化，降低电极过电位，使电能消耗降低15%-35%；在脉冲电解处理废水过程中电流效率稳定、Fe^2＋能够有效扩散到废水中，使去污效果增强5%-7%。The influence of the pulse power and the direct-current power on the power consumption and the COD removal in wastewater electrolysis process was studied, and the causes of energy conservation and high efficiency of pulse-electrolysis in wastewater treatment were analyzed. The result shows that the pulse-current is more efficient than the direct-current to slow down the polarization of electrode, reduce the over voltage of electrode, and then reduce 15% -35% of the power consumption. And contrast to the direct current electrolysis, the pulse-electrolysis can make electrolysis decontaminating efficiency increase by 5% -7% , because the current efficiency is stabile and the Fe^2＋ can spread to the wastewater effectively.

关 键 词：脉冲电解 电能消耗 COD去除率 极化 过电位 

分 类 号：X703.1[环境科学与工程—环境工程]