In this study, electrocoagulation was evaluated for landfill leachate as a complex wastewater. Effects of all significant parameters including inter-electrode gap, current density, electrode material, time, pH, electrode numbers, salinity, and concentration were investigated. This study reports the changing patterns for chemical xxygen demand (COD) removal, temperature, voltage, and pH during EC for both Fe and Al electrodes under different conditions. According to the results, the best COD removals were achieved at shortest inter-electrode distance (0.5 cm), highest current density (1000 A m⁻²), highest number of electrodes (6 plates), longest time (60 min), and within acidic pH. Furthermore, for different NaCl concentrations (0–16 g l⁻¹), both falling and rising patterns were observed. This study also provides separate results for the effect of operational parameters on pH, voltage, temperature, and energy consumption during EC. With higher inter-electrode distances, voltage and temperature rose to larger values, whereas pH fell. Besides, increases in initial pH caused rises in all voltage, temperature and pH parameters during EC. Experiments also displayed that higher values of voltage, temperature, and pH occurred at larger current densities. Additionally, with time, pH increased to more basic measures, and voltage similarly increased. Results also reported that although addition of NaCl into medium could drop the voltage and temperature, it formed both falling and rising patterns for pH at different NaCl concentrations. Plus, according to the results, voltage, temperature, and pH all experienced rising patterns in accordance with the increase in the number of electrodes. Finally, a comparative study of energy consumption was performed to analyse the operation parametric effect.

在这项研究中，对电渗析法评估了垃圾渗滤液作为复杂废水的情况。研究了所有重要参数的影响，包括电极间隙，电流密度，电极材料，时间，pH，电极数，盐度和浓度。这项研究报告了在不同条件下，Fe和Al电极在EC期间化学需氧量（COD）去除，温度，电压和pH的变化模式。根据结果​​，在最短的电极间距离（0.5 cm），最大的电流密度（1000 A m ^-2），最大的电极数（6个板），最长的时间（60分钟）和最大的电极距离下获得了最佳的COD去除率。在酸性pH范围内。此外，对于不同的NaCl浓度（0–16 g l ^-1），同时观察到下降和上升模式。这项研究还为EC期间操作参数对pH，电压，温度和能耗的影响提供了单独的结果。随着电极间距离的增加，电压和温度上升到更大的值，而pH下降。此外，初始pH的升高会导致EC期间所有电压，温度和pH参数的升高。实验还表明，在更大的电流密度下会出现更高的电压，温度和pH值。另外，随着时间的流逝，pH值增加到更多的基本指标，电压也类似地增加。结果还报告说，尽管向介质中添加NaCl可以降低电压和温度，但在不同NaCl浓度下，pH都会形成下降和上升模式。另外，根据结果，电压，温度，随着电极数量的增加，pH和pH都经历了上升模式。最后，对能耗进行了比较研究，以分析运行参数效果。