In this study, a flow-through ozone-electrolysis (O₃-electrolysis) process was developed by combining ozonation with an electrolysis using a porous reactive electrochemical membrane (REM) cathode. Due to the convection-enhanced mass transport and fast radial diffusion inside the small pores of REM cathodes, the rate of cathodic O₃ reduction to ozonide radicals (O₃^•−) was significantly enhanced, while the further cathodic O₃^•− reduction to oxygen was inhibited during the flow-through O₃-electrolysis process compared to the conventional mixed-tank O₃-electrolysis process. Consequently, more hydroxyl radicals (•OH) were formed from O₃^•− decay in water during the flow-through O₃-electrolysis process than the mixed-tank O₃-electrolysis process. Corresponding to the higher •OH yields from cathodic O₃ reduction, the flow-through O₃-electrolysis process substantially enhanced the abatement kinetics and efficiency of para-benzoic acid (pCBA, a model compound of ozone-resistant micropollutant) in a groundwater than conventional ozonation and the mixed-tank O₃-electrolysis process. These results suggest that the flow-through O₃-electrolysis process may provide a competitive treatment technology for micropollutant abatement in water treatment.

在这项研究中，通过将臭氧化与使用多孔反应电化学膜 (REM) 阴极的电解相结合，开发了流通式臭氧电解 (O _{3 - 电解) 工艺。}由于 REM 正极小孔内的对流增强传质和快速径向扩散，阴极 O ₃还原为臭氧自由基（O ₃ ^•-）的速率显着提高，而进一步的阴极 O ₃ ^•-还原为与传统的混合槽O ₃ -电解过程相比，在流通式O ₃ -电解过程中氧气受到抑制。因此，更多的羟基自由基（•OH）由O _3形成^•−流通式O ₃ -电解过程中的水中衰减比混合槽O ₃ -电解过程中的衰减。_{与阴极 O 3}还原产生的较高 •OH 产率相对应，流通式 O _{3电解过程显着提高了地下水中}对苯甲酸（p CBA，一种抗臭氧微污染物的模型化合物）的减排动力学和效率优于传统的臭氧化和混合罐O ₃电解工艺。这些结果表明，流通式O ₃电解工艺可以为水处理中的微污染物减排提供有竞争力的处理技术。