Nabi Mohammad, Liang Hong, Zhou Qixiang, Cao Jiashuo, Gao Dawen
Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; Collaborative Innovation Center of Energy Conservation & Emission Reduction and Sustainable Urban-Rural Development in Beijing, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; Collaborative Innovation Center of Energy Conservation & Emission Reduction and Sustainable Urban-Rural Development in Beijing, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
Sci Total Environ. 2023 Mar 20;865:161262. doi: 10.1016/j.scitotenv.2022.161262. Epub 2022 Dec 29.
Anaerobic membrane bioreactor (AnMBR) is a promising treatment technique for various types of wastewaters, and is preferred over other conventional aerobic and anaerobic methods. However, membrane fouling is considered a bottleneck in AnMBR system, which technically blocks membrane pores by numerous inorganics, organics, and other microbial substances. Various materials can be added in AnMBR to control membrane fouling and improve anaerobic digestion, and studies reporting the materials addition for this purpose are hereby systematically reviewed. The mechanism of membrane fouling control including compositional changes in extracellular polymeric substances (EPSs) and soluble microbial products (SMPs), materials properties, stimulation of antifouling microbes and alteration in substrate properties by material addition are thoroughly discussed. Nonetheless, this study opens up new research prospects to control membrane fouling of AnMBR, engineered by material, including compositional changes of microbial products (EPS and SMP), replacement of quorum quenching (QQ) by materials, and overall improvement of reactor performance. Regardless of the great research progress achieved previously in membrane fouling control, there is still a long way to go for material-mediated AnMBR applications to be undertaken, particularly for materials coupling, real scale application and molecular based studies on EPSs and SMPs, which were proposed for future researches.
厌氧膜生物反应器（AnMBR）是一种用于处理各类废水的很有前景的处理技术，比其他传统的好氧和厌氧方法更具优势。然而，膜污染被认为是AnMBR系统的一个瓶颈，它会在技术上被大量的无机物、有机物和其他微生物物质堵塞膜孔。可以在AnMBR中添加各种材料来控制膜污染并改善厌氧消化，在此对为此目的添加材料的相关研究进行系统综述。深入讨论了膜污染控制的机制，包括胞外聚合物（EPS）和可溶性微生物产物（SMP）的成分变化、材料特性、抗污染微生物的刺激以及通过添加材料对底物特性的改变。尽管如此，本研究为通过材料控制AnMBR的膜污染开辟了新的研究前景，包括微生物产物（EPS和SMP）的成分变化、用材料替代群体感应淬灭（QQ）以及整体提高反应器性能。尽管此前在膜污染控制方面取得了巨大的研究进展，但材料介导的AnMBR应用仍有很长的路要走，特别是在材料耦合、实际规模应用以及针对EPS和SMP的基于分子的研究方面，这些被提议作为未来的研究方向。
