School of Energy and Environment, Thapar Institute of Engineering and Technology, Patiala, India.
Department of Chemical Engineering, Malaviya National Institute of Technology, Jaipur, Rajasthan, India.
Chemosphere. 2021 Dec;285:131498. doi: 10.1016/j.chemosphere.2021.131498. Epub 2021 Jul 8.
In the present study, the potential application of novel doped-MMO (Ti/IrO/TaO/SnO-SbO) anodes as an alternative source to costly electrodes have been visualized for the EO treatment of urea. Parametric optimization for the treatment of urea through the EO process by doped-MMO has been done successfully. The high R values of both responses i.e. % Degradation and energy consumption for quadratic suggested by BBD under RSM advocates a good correlation between predicted and experimental data. The maximum % Degradation and energy consumption at optimized were found to be 91.2%, 51.53 kWh m for urea respectively. Additionally, efforts were made to minimize treatment time further by implementing a dual effect, namely photo-electrocatalysis. The anode was found to be relatively stable even after 120 runs. The analysis of treated urea solution was verified in terms of total organic carbon (TOC) 90.0% reduction. The average operating cost of the electro-oxidation treatment process is determined to be 1.91 $ m. The results of this study demonstrate the potential of doped-MMO as a promising concept for the treatment of wastewater that can be successfully applied in real life.
在本研究中，我们设想将新型掺杂 MMO（Ti/IrO/TaO/SnO-SbO）阳极作为一种有前途的替代昂贵电极的选择，用于电化学氧化（EO）处理尿素。通过掺杂 MMO 对 EO 处理尿素的工艺进行了参数优化。响应面法（RSM）中的 BBD 提出的二次方的高 R 值，即降解%和能耗，表明预测数据和实验数据之间具有良好的相关性。在优化条件下，尿素的最大降解%和能耗分别为 91.2%和 51.53 kWh m。此外，还通过实施光电催化的双重效应，进一步努力最小化处理时间。即使经过 120 次运行，阳极仍相对稳定。对处理后的尿素溶液进行了总有机碳（TOC）减少 90.0%的分析验证。电氧化处理过程的平均运行成本确定为 1.91 美元 m。本研究的结果表明，掺杂 MMO 作为一种有前途的废水处理概念具有潜力，可成功应用于实际生活中。
