You Keqin, Liu Enlong, Wu Xidao, Cheng Daizhong
State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China E-mail:
State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China.
Water Sci Technol. 2025 Jul;92(2):340-362. doi: 10.2166/wst.2025.103. Epub 2025 Jul 16.
Ozonation has become a well-established process in the field of water treatment, especially in disinfection and organic pollutant removal. However, the practical application of this technology is often limited by low mass transfer efficiency, high reaction selectivity, and by-product generation. The introduction of micro-nano bubbles provides an innovative solution to these limitations - its large specific surface area, excellent gas-liquid mass transfer, and long-lasting aqueous phase stability can significantly enhance ozone dissolution efficiency and promote the generation of reactive oxygen species. Recent studies have shown that this micro-nano bubbles synergistic ozone oxidation system exhibits excellent performance in complex water treatment scenarios such as pharmaceutical wastewater treatment and membrane bioreactor maintenance. This paper systematically discusses the synergistic mechanism of ozone and micro-nano bubbles, focusing on the four dimensions of bubbles generation technology, system characterization method, reaction mechanism research, and current technological bottlenecks, which not only provides a theoretical basis for the relevant basic research, but also promotes the large-scale application of this composite technology in the field of water treatment and points to the key scientific issues that need to be broken through.
臭氧化已成为水处理领域中一项成熟的工艺，尤其是在消毒和去除有机污染物方面。然而，该技术的实际应用常常受到传质效率低、反应选择性高和副产物生成的限制。微纳米气泡的引入为这些限制提供了一种创新解决方案——其大比表面积、优异的气液传质性能以及持久的水相稳定性能够显著提高臭氧溶解效率并促进活性氧的生成。最近的研究表明，这种微纳米气泡协同臭氧氧化系统在制药废水处理和膜生物反应器维护等复杂水处理场景中表现出优异性能。本文系统地探讨了臭氧与微纳米气泡的协同作用机制，重点关注气泡产生技术、系统表征方法、反应机理研究和当前技术瓶颈这四个维度，这不仅为相关基础研究提供了理论依据，还推动了这种复合技术在水处理领域的大规模应用，并指出了需要突破的关键科学问题。
