Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, China; Key Laboratory of Pollution Process and Environmental Criteria (MOE), College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, PR China.
Key Laboratory of Pollution Process and Environmental Criteria (MOE), College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, PR China.
Chemosphere. 2021 Jul;274:129983. doi: 10.1016/j.chemosphere.2021.129983. Epub 2021 Feb 16.
A flow-through reactor with integration of electrosorption (ES) and peroxi-coagulation (PC) processes was designed for organics removal. Impacts of key parameters (solution pH, flow rate, initial concentration of organics, applied voltage) on the removal efficiency of Orange II were explored. Under the optimized conditions, 93% removal efficiency and 1043 mg g removal capacity of Orange II could be obtained with an energy consumption of 31.9 kWh m order. Controlled experiments of ES for pollutants removal, and the detections of dissolved irons and the generated hydroxyl radicals (OH) were conducted, demonstrating the coupling effect and contribution ratio of ES and PC for organics removal in this flow-through system. The spatiotemporal efficiency of the integrated flow-through system was more than 10 times of conventional ES system, providing more potential for practical application of wastewater treatment. The flow-through system was also verified to be advantageous for removal of other organic pollutants including 2,4-dichlorophenoxyacetic acid, phenol and methylene blue with high removal efficiencies. This study proved that the integrated flow-through process was an efficient, comparative and applicable method for wastewater treatment.
一种将电吸附 (ES) 和过氧凝聚 (PC) 工艺集成的流动反应器被设计用于去除有机物。考察了关键参数（溶液 pH 值、流速、有机物初始浓度、施加电压）对橙 II 去除效率的影响。在优化条件下，橙 II 的去除效率可达 93%，去除容量可达 1043mg g，能耗为 31.9kWh m order。进行了 ES 去除污染物的对照实验，以及溶解铁和生成的羟基自由基 (OH) 的检测，证明了 ES 和 PC 在该流动系统中对有机物去除的耦合效应和贡献比。集成流动系统的时空效率是传统 ES 系统的 10 倍以上，为废水处理的实际应用提供了更多的潜力。该流动系统还被证明有利于去除其他有机污染物，包括 2,4-二氯苯氧乙酸、苯酚和亚甲基蓝，去除效率高。本研究证明了集成流动过程是一种高效、可比和适用的废水处理方法。
