Abstract:

A three-dimensional electrode system is constructed to treat landfill leachate nanofiltration concentrate by electrocatalytic oxidation, and the mechanism of catalytic reaction is discussed. Nanofiltration concentrate is treated by two-dimensional and three-dimensional electrode systems at 5.5 V. The results show that the COD removal rate of the three-dimensional electrode system is 70.35%, which is significantly better than that of the two-dimensional electrode system(58.58%) under the same condition. The content of dissolved organic matter in the effluent from the three-dimensional electrode system is significantly reduced. The addition of the particle electrode increases the amount of H₂O₂ and·OH in the system, and has better efficiency in the degradation and removal of pollutants.

Key words: three-dimensional electrode, leachate, nanofiltration concentrate, electrocatalysis oxidation

摘要：

构建了三维电极系统，对垃圾渗滤液纳滤浓缩液进行电催化氧化处理，并探讨催化反应机理。在5.5 V电压下用二维和三维电极系统对纳滤浓缩液进行处理，结果表明，三维电极系统的COD去除率为70.35%，显著优于相同条件下的二维电极系统（58.58%），三维电极系统出水中的可溶性有机物含量明显降低。粒子电极的加入提高了系统中H₂O₂和·OH的生成量，在污染物的降解和去除上有更优异的效能。

关键词: 三维电极, 垃圾渗滤液, 纳滤浓缩液, 电催化氧化

CLC Number: 

• X703