Leachate is known with high concentration of organic substances and nitrogen, which are extremely toxic to the environment. Recently, electrochemical oxidation has received much attention on account of its low cost, feasibility, environmental friendliness, and excellent in contaminants removal in wastewater. The present study reported the first time treatment of biologically leachate (after continuous flow sequencing batch reactor (CFSBR) or Intermittent Cycle Extended Aeration System (ICEAS) digestion) electrochemical oxidation using Ti/BDD and Ti/RuO₂ anodes. Effects of varying operational conditions of the electrochemical oxidation process: current density, reaction time, pH, and flow rate on the pollutant removal efficiencies and energy consumptions, were studied. Final results revealed that low pH favors high organic substance removal efficiencies, but restricts low ammonium removal efficiencies, and vice versa. When using a Ti/BDD anode, COD, TOC, NH${}_4^{+}$–N and total Nitrogen (TN) elimination rates achieved highest were 95.17%, 91.89%, 81.18% and 63.54%, respectively; while, with Ti/RuO₂ anode, they were 92.57%, 78.76%, 97.85% and 72.12% at 83 mA cm⁻² and 8 h. Ti/BDD anode showed less energy consumption and better pollutant removal efficiencies than the Ti/RuO₂ anode, except for the NH${}_4^{+}$–N and TN parameters. After treatment, the effluent matched with the Vietnamese discharge standards for landfill leachate effluent QCVN 25:2009/BTNMT.

已知渗滤液具有高浓度的有机物质和氮，它们对环境具有极大的毒性。近来，电化学氧化由于其低成本，可行性，环境友好性以及在废水中的污染物去除方面优异而受到了广泛的关注。本研究报告了首次使用Ti / BDD和Ti / RuO ₂处理生物浸出液（在连续流测序间歇反应器（CFSBR）或间歇循环扩展曝气系统（ICEAS）消化后）电化学氧化阳极。研究了电化学氧化过程的不同操作条件：电流密度，反应时间，pH和流速对污染物去除效率和能耗的影响。最终结果表明，低pH值有利于较高的有机物去除效率，但会限制较低的铵去除效率，反之亦然。使用Ti / BDD阳极时，COD，TOC，NH${}_4^{+}$最高的氮和总氮去除率分别为95.17％，91.89％，81.18％和63.54％；而使用Ti / RuO ₂阳极，在83 mA cm ^-2和8 h时它们分别为92.57％，78.76％，97.85％和72.12％。Ti / BDD阳极比NH / Ti / RuO ₂阳极具有更低的能耗和更好的污染物去除效率${}_4^{+}$-N和TN参数。经过处理后，废水符合越南垃圾填埋场渗滤液排放标准QCVN 25：2009 / BTNMT。