College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China.
College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China.
Chemosphere. 2022 Jun;296:134017. doi: 10.1016/j.chemosphere.2022.134017. Epub 2022 Feb 17.
Acidic organic wastewater with toxic and carcinogenic properties has long been a tough problem for industrial treatment. To break down the barrier of poor acidic stability as well as the high cost of materials and reactors, a novel strategy of utilizing a high-performance and acid-tolerant TiO/carbon electrocatalytic membrane (TiO/CEM) for acidic organic wastewater treatment was proposed. Study results showed that high concentrations of organic pollutants were separated and degraded by the synergistic effects of membrane separation and electrocatalytic oxidation simultaneously on the TiO/CEM. The great treatment performance with membrane removal efficiency of >97.4% was obtained by treating acidic rhodamine B (RhB) dye wastewater under optimized applied voltage. Treatment experiments under various pH and electrochemical tests demonstrated the outstanding acid-tolerant property and long service life of TiO/CEM. Furthermore, the feasibility of TiO/CEM for industrial application and various acidic organic wastewater treatment was proved by treating typical organic pollutants (phenol, tetracycline and oil) under high acidic circumstances.
具有毒性和致癌性的酸性有机废水一直是工业处理的难题。为了克服酸性稳定性差和材料及反应器成本高的障碍，提出了一种利用高性能耐酸 TiO/碳电催化膜（TiO/CEM）处理酸性有机废水的新策略。研究结果表明，在 TiO/CEM 的协同作用下，膜分离和电催化氧化同时对高浓度有机污染物进行分离和降解。通过在优化的施加电压下处理酸性罗丹明 B（RhB）染料废水，获得了>97.4%的优异处理性能和膜去除效率。在各种 pH 值和电化学测试下的处理实验证明了 TiO/CEM 出色的耐酸性和长使用寿命。此外，通过在高酸性条件下处理典型有机污染物（苯酚、四环素和油），证明了 TiO/CEM 用于工业应用和各种酸性有机废水处理的可行性。
