Department of Civil and Architectural Engineering, College of Engineering, Qatar University, 2713, Doha, Qatar.
Algal Technologies Program, Center for Sustainable Development, College of Arts and Sciences, Qatar University, 2713, Doha, Qatar.
Environ Sci Pollut Res Int. 2020 Jul;27(19):23888-23898. doi: 10.1007/s11356-020-08678-4. Epub 2020 Apr 16.
In this paper, the removal of total organic carbon (TOC) from a primary treated municipal wastewater using a new electrode configuration in electrocoagulation was evaluated. The used electrode configuration induces a dielectrophoretic (DEP) force by using an asymmetrical aluminum electrode with an alternating current power supply. The impact of applied current, electrolysis time, and interelectrode distance on the removal efficiency of TOC were evaluated. The experimental results showed that the maximum removal efficiency of TOC was obtained at 30 min electrolysis time, 600 mA applied current, and 0.5 cm interelectrode distance. Under these operating conditions, the TOC removal was 87.7% compared to 80.5% using symmetrical aluminum electrodes with no DEP effect. The energy consumption at the selected operating conditions was 3.92 kWh/m. The experimental results were comparable with the simulation results done by COMSOL Multiphysics software.
本文评估了在电絮凝中使用新型电极结构去除原处理城市废水中的总有机碳 (TOC)。所使用的电极结构通过使用带有交流电源的不对称铝电极产生介电泳 (DEP)力。评估了施加电流、电解时间和电极间距离对 TOC 去除效率的影响。实验结果表明,在 30 分钟的电解时间、600 mA 的施加电流和 0.5 cm 的电极间距离下,TOC 的去除效率最高。在这些操作条件下,TOC 的去除率为 87.7%,而使用没有 DEP 效应的对称铝电极时为 80.5%。在选定的操作条件下,能耗为 3.92 kWh/m。实验结果与 COMSOL Multiphysics 软件的模拟结果相当。