Zero-valent iron (ZVI) was used as the iron source for the advanced Fenton treatment of landfill leachate in an electrochemical cell. In this process, Fe⁰ was dissolved from the surface of ZVI powder and then the generated Fe²⁺ would activate the added H₂O₂ to produce hydroxyl radical (OH), which is a strong oxidant and can lead to the removal of COD from landfill leachate. The effect of initial pH, H₂O₂ dosage, Fe⁰ dosage, current density and inter-electrode gap on the COD removal of landfill leachate was investigated. The results indicate that COD removal followed pseudo-second order kinetic model. The rate constant and efficiency of COD removal increased with Fe⁰ dosage being increased from 0.524 to 1.745 g/L, but decreased when initial pH rose from 2 to 4. The optimal conditions of H₂O₂ dosage, current density and inter-electrode gap were determined to be 0.187 mol/L, 20.6 mA/cm² and 1.8 cm, respectively. The humic acid-like organics in the leachate were effectively degraded and over 70% of COD could be removed from the leachate, showing high efficiency of the electro-advanced Fenton process.

零价铁（ZVI）用作铁源，用于电化学池中先进的Fenton处理垃圾填埋场渗滤液。在此过程中，Fe ⁰从ZVI粉末的表面溶解，然后生成的Fe ²⁺会激活添加的H ₂ O ₂以产生羟自由基（OH），后者是强氧化剂，可导致COD的去除从垃圾渗滤液中提取。初始pH，H ₂ O ₂剂量，Fe ^0的影响研究了垃圾渗滤液中COD的去除剂量，电流密度和电极间间隙。结果表明，COD去除遵循伪二级动力学模型。COD去除的速率常数和效率增加的Fe ⁰剂量从0.524增加至1.745克/ L，但下降时初始pH为2上升到4 H的最佳条件₂ ö ₂剂量，电流密度和电极间间隙分别确定为0.187 mol / L，20.6 mA / cm ²和1.8 cm。有效地降解了渗滤液中的腐殖酸样有机物，可以从渗滤液中去除超过70％的COD，显示了电推进Fenton工艺的高效率。