School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, PR China.
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, PR China.
Bioresour Technol. 2022 Oct;362:127826. doi: 10.1016/j.biortech.2022.127826. Epub 2022 Aug 25.
The activated sludge process (ASP) is widely used for wastewater treatment, and the aeration efficiency is crucial to the operation of wastewater treatment plants. Recently, microbubble (MB)- and nanobubble (NB)-aeration has attracted much attention as there is growing evidence that it holds a great promise for upgrading the process efficiency of current ASP under conventional macro-bubble-aeration. However, a comprehensive review to elucidate the potential application of MB- and NB-aeration in ASP is still lacking. Therefore, this review will provide a systematic introduction to MB- and NB-aeration (including the unique properties and generation methods of MBs and NBs), and gain mechanistic insights on how MB- and NB-aeration improve gas-liquid mass transfer. The recent advances in MB- and NB-aeration applications to ASP and the resultant effects are also highlighted and discussed in-depth. The review concludes with a brief consideration of future research interests.
活性污泥法（ASP）被广泛应用于污水处理，曝气效率对污水处理厂的运行至关重要。最近，微气泡（MB）和纳米气泡（NB）曝气引起了广泛关注，因为越来越多的证据表明，它有望提高传统大气泡曝气下 ASP 的处理效率。然而，目前仍缺乏对 MB 和 NB 曝气在 ASP 中潜在应用的全面综述。因此，本综述将对 MB 和 NB 曝气（包括 MB 和 NB 的独特性质和产生方法）进行系统介绍，并深入探讨 MB 和 NB 曝气如何改善气液传质的机理。还重点介绍和深入讨论了 MB 和 NB 曝气在 ASP 中的应用的最新进展及其产生的影响。本综述最后简要考虑了未来的研究兴趣。
