Landfill leachate nanofiltration concentrate after ultrafiltration was treated. The experiments were carried out in an electrolytic cell which had an anode chamber and a cathode chamber and could be separated by a proton exchange membrane. Different electrochemical processes combined with peroxydisulfate/Fe³⁺ (PS/Fe³⁺) were compared and the reactions in anode chamber and cathode chamber were discussed. The Anode/PS/Fe³⁺-Cathode/PS/Fe³⁺ process shows the best effect on COD removal and color removal. The 3D-EEMFS results indicate that Anode/PS/Fe³⁺-Cathode/PS/Fe³⁺ process has the best effect on the destruction of organics. In anode chamber, the total COD removal is ascribed to (1) the oxidation by SO₄⁻ produced from PS activation by original metal ions in the target solution, (2) direct and indirect oxidations by anode, and (3) coagulation caused by Fe³⁺ after pH adjustment. In cathode chamber, the total COD removal is due to (1) the oxidation by SO₄⁻ produced from PS activation by the regenerated Fe²⁺ from Fe³⁺ reduction on cathode, and (2) coagulation caused by Fe³⁺ after pH adjustment. An optimal experimental condition with current of 80 mA, Fe³⁺ dosage of 15 mM and PS dosage of 37.5 mM is obtained for Anode/PS/Fe³⁺-Cathode/PS/Fe³⁺ process. The energy consumption between Anode/PS/Fe³⁺-Cathode/PS/Fe³⁺ (4.42 kWh/kgCOD) and (Anode + Cathode)/PS/Fe³⁺ (4.57 kWh/kgCOD) is similar when 55% of COD is removed. However, the toxicity increase in Anode/PS/Fe³⁺-Cathode/PS/Fe³⁺ process is obviously less than that in (Anode + Cathode)/PS/Fe³⁺ process.

处理超滤后的垃圾渗滤液纳滤浓缩液。实验在具有阳极室和阴极室并且可以被质子交换膜隔开的电解池中进行。比较了与过氧二硫酸盐/ Fe ³⁺（PS / Fe ³⁺）结合的不同电化学过程，并讨论了在阳极室和阴极室中的反应。阳极/ PS / Fe ^3+-阴极/ PS / Fe ³⁺工艺显示出对COD去除和颜色去除的最佳效果。3D-EEMFS结果表明阳极/ PS / Fe ^3+-阴极/ PS / Fe ³⁺工艺对破坏有机物的影响最大。在阳极室中，总COD去除是通过SO归因于（1）中的氧化₄ ^-从PS激活由目标溶液原始金属离子产生的，（2）由阳极直接和间接氧化，和（3）凝结引起的pH调整后为Fe ³⁺。在阴极室中，总COD去除率是由于（1）氧化由SO ₄ ^-从PS激活由再生产生的Fe ²⁺选自Fe ³⁺还原阴极上，以及（2）凝聚引起的Fe ³⁺的pH后调整。电流为80 mA，Fe ³⁺的最佳实验条件对于阳极/ PS / Fe ^3+-阴极/ PS / Fe ³⁺工艺，获得了15 mM的剂量和37.5 mM的PS剂量。当化学需氧量的55％时，阳极/ PS / Fe ^3+-阴极/ PS / Fe ³⁺（4.42 kWh / kgCOD）和（阳极+阴极）/ PS / Fe ³⁺（4.57 kWh / kgCOD）之间的能耗相似已移除。然而，阳极/ PS / Fe ^3+-阴极/ PS / Fe ³⁺工艺的毒性增加明显小于（阳极+阴极）/ PS / Fe ³⁺工艺的毒性增加。