A review of anaerobic membrane bioreactors for municipal wastewater treatment with a focus on multicomponent biogas and membrane fouling control
A review of anaerobic membrane bioreactors for municipal wastewater treatment with a focus on multicomponent biogas and membrane fouling control
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DOI：
10.1039/d0ew00528b
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
Yisong Hu;Yisong Hu;H. Cheng;Jiayuan Ji;Y. Li
中科院分区：
文献类型：
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作者：
Yisong Hu;Yisong Hu;H. Cheng;Jiayuan Ji;Y. Li
厌氧膜生物反应器（AnMBR）是近年来发展起来的一种新型的厌氧消化技术。然而，由于膜污染问题和低生物能回收效率，AnMBR在环境温度下处理大量低至中等强度废水（如城市废水（MWW））的实际使用仍然是一个挑战。在这篇综述中，AnMBR工艺的膜和生物反应器配置的基础知识进行了介绍。然后，与污染物去除和沼气生产方面的AnMBR的性能进行了讨论，特别强调分析的起源和命运的多组分沼气在液-气相的基础上的理论预测和报告的实验结果。综述了膜污染机理的研究，并概述了支持AnMBR长期可持续运行的常用污染控制措施。最后，从一些不同的角度指出了在提高AnMBR的发展的技术挑战。应用AnMBR处理低浓度废水应进一步优化，以提高全面运行的技术经济可行性，并应给予更多的研究关注有机物和营养物质的重定向，以实现更经济的工艺，提高环境效益。
Among the various anaerobic digestion technologies developed for wastewater treatment and resource recovery, the anaerobic membrane bioreactor (AnMBR) stands out as a viable alternative to traditional processes. However, the practical use of the AnMBR to treat a huge amount of low to moderate strength wastewater, like municipal wastewater (MWW), at ambient temperature, remains a challenge due to the membrane fouling issue and a low bioenergy recovery efficiency. In this review, the basics of the AnMBR process regarding membrane and bioreactor configurations are introduced. Then, the performance of the AnMBR with regard to pollutant removal and biogas production is discussed with special emphasis on analyzing the origin and fate of multicomponent biogas in the liquid–gaseous phases based on theoretical predictions and reported experimental results. A review of the studies on the mechanisms of membrane fouling is included together with an overview of the commonly used fouling control measures to support long-term sustainable AnMBR operation. Lastly, the technical challenges in enhancing AnMBR development from a number of different perspectives are pointed out. Applying AnMBR for the treatment of low-strength wastewater should be further optimized to enhance the techno-economic feasibility for full-scale operation, and more research attention should be given to the redirection of organics and nutrients to achieve a more economical process with improved environmental benefits.