Based on the hypothesis that the electrodeposition conditions may have effects on the developed electrode’s oxidation performance, the present study aimed at investigating the effects of a graphite/PbO₂ anode preparation conditions (current intensity, Pb(NO₃)₂ concentration, HNO₃ concentration, and temperature) on leachate treatment efficiency. Synthesis conditions were varied to improve the performance of the electrode, and leachate treatment efficiencies were evaluated using anodes prepared at different conditions. The Box–Behnken design was used as an experimental design for achieving the goal. The effect of variables on the system’s outcome was modeled by response surface methodology and artificial neural network. The variation in chemical oxygen demand (COD) removal efficiency from 7.81 to 24.58% for 2 h of electrolysis demonstrates significant influences of anode preparation conditions on its performance. The optimum conditions were attained as 0.64 A of current intensity, 0.16 mol L⁻¹ of Pb(NO₃)₂, 0.16 mol L⁻¹ of HNO₃, and 76.98 °C of temperature. The PbO₂ electrode developed at optimum conditions yielded 79 ± 1.7% COD removal efficiency of leachate at 8 h. The study results show that electrode synthesis conditions affect the oxidation ability of the electrode, and optimization of the same can significantly improve the treatment performance.

中文翻译：

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石墨/ PbO 2阳极的合成：采用RSM和ANN方法的电沉积过程建模，以改善垃圾渗滤液的处理

基于电沉积条件可能对发达电极的氧化性能有影响的假设，本研究旨在研究石墨/ PbO ₂阳极制备条件（电流强度，Pb（NO ₃）₂浓度，HNO ₃浓度和温度）对渗滤液处理效率的影响。改变合成条件以改善电极的性能，并使用在不同条件下制备的阳极评估渗滤液的处理效率。Box-Behnken设计用作实现目标的实验设计。通过响应面方法和人工神经网络对变量对系统结果的影响进行建模。电解2 h的化学需氧量（COD）去除效率从7.81到24.58％的变化表明，阳极制备条件对其性能有重大影响。获得最佳条件为电流强度为0.64 A，Pb（NO ₃）₂为0.16 mol L ^-1，Pb（NO ₃）_2为0.16 mol L ^-1HNO ₃的温度为76.98°C。在最佳条件下开发的PbO ₂电极在8小时内产生了79±1.7％的渗滤液COD去除效率。研究结果表明，电极的合成条件影响电极的氧化能力，对其进行优化可以显着提高电极的处理性能。