The integrated fixed‐film activated sludge (IFAS) process is considered one of the cutting‐edge solutions to the traditional wastewater treatment challenges, allowing suspended sludge and attached biofilm to grow in the same system. In addition, the coupling of IFAS with anaerobic ammonium oxidation (Anammox) can further improve the efficiency of biological denitrification. This paper summarises the research progress of IFAS coupled with the anammox process, including partial nitrification anammox, simultaneous partial nitrification anammox and denitrification, and partial denitrification anammox technologies, and describes the factors that limit the development of related processes. The effects of dissolved oxygen, influent carbon source, sludge retention time, temperature, microbial community, and nitrite‐oxidising bacteria inhibition methods on the anammox of IFAS are presented. At the same time, this paper gives an outlook on future research focus and engineering practice direction of the process.

中文翻译：

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基于集成固定膜活性污泥（IFAS）的厌氧氨氧化（Anammox）工艺研究进展

集成固定膜活性污泥 (IFAS) 工艺被认为是应对传统废水处理挑战的尖端解决方案之一，它允许悬浮污泥和附着的生物膜在同一系统中生长。此外，IFAS与厌氧氨氧化（Anammox）的耦合可以进一步提高生物反硝化的效率。本文综述了IFAS与厌氧氨氧化工艺耦合的研究进展，包括部分硝化厌氧氨氧化、部分硝化厌氧氨氧化与反硝化同时进行、部分反硝化厌氧氨氧化技术，并阐述了限制相关工艺发展的因素。介绍了溶解氧、进水碳源、污泥停留时间、温度、微生物群落和亚硝酸盐氧化菌抑制方法对 IFAS 厌氧氨氧化的影响。同时，本文对该过程的未来研究重点和工程实践方向进行了展望。