A review on anaerobic membrane bioreactors for enhanced valorization of urban organic wastes: Achievements, limitations, energy balance and future perspectives
A review on anaerobic membrane bioreactors for enhanced valorization of urban organic wastes: Achievements, limitations, energy balance and future perspectives
复制标题
用于增强城市有机废物价值的厌氧膜生物反应器综述：成就、局限性、能量平衡和未来前景
DOI：
10.1016/j.scitotenv.2022.153284
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发表时间：
2022
影响因子：
9.8
通讯作者：
Yu-You Li
中科院分区：
文献类型：
--
作者：
(4)Yisong Hu;Xuli Cai;Runda Du;Yuan Yang;Chao Rong;Yu Qin;Yu-You Li
可持续城市发展受到迫在眉睫的能源危机和市政部门产生的大量有机废物等的威胁。传统的废物管理方法涉及温室气体排放和有限的资源回收，因此需要先进的技术将这些废物转化为生物能源、生物肥料和增值产品。不同规模应用的研究和应用经验表明，厌氧膜生物反应器（AnMBR）工艺是一种高效厌氧消化池，可实现餐厨垃圾和污泥等城市有机废弃物的资源化，但其研究现状还不够全面。本文通过对近年来国内外研究成果的整理，从膜生物反应器的处理性能和膜污染、技术局限性、能量平衡和技术经济评价等方面进行了综述，并展望了其发展前景。AnMBR可以通过完全保留功能性微生物和悬浮固体，及时分离产物和潜在的抑制物质来增强有机废物的处理，从而提高消化效率，提高有机物降解率，沼气产量和低足迹的工艺稳健性。当处理高固体有机废物时，膜污染和传质问题可能是限制AnMBR应用于湿式消化的挑战，因此需要采取对策来实现扩展实施。提出了一个概念框架，考虑到各种有机废物的处置和最终产品（渗透，沼气和生物固体）的利用，这将有助于发展AnMBR为基础的废物资源化设施，可持续废物管理和更多的经济环境效益输出。
Sustainable urban development is threatened by an impending energy crisis and large amounts of organic wastes generated from the municipal sector among others. Conventional waste management methods involve greenhouse gas (GHG) emission and limited resource recovery, thus necessitating advanced techniques to convert such wastes into bioenergy, bio-fertilizers and valuable-added products. Research and application experiences from different scale applications indicate that the anaerobic membrane bioreactor (AnMBR) process is a kind of high-rate anaerobic digester for urban organic wastes valorization including food waste and waste sludge, while the research status is still insufficiently summarized. Through compiling recent achievements and literature, this review will focus on the following aspects, including AnMBR treatment performance and membrane fouling, technical limitations, energy balance and techno-economic assessment as well as future perspectives. AnMBR can enhance organic wastes treatment via complete retention of functional microbes and suspended solids, and timely separation of products and potential inhibitory substances, thus improving digestion efficiency in terms of increased organics degradation rates, biogas production and process robustness at a low footprint. When handling high-solid organic wastes, membrane fouling and mass transfer issues can be the challenges limiting AnMBR applications to a wet-type digestion, thus countermeasures are required to pursue extended implementations. A conceptual framework is proposed by taking various organic wastes disposal and final productions (permeate, biogas and biosolids) utilization into consideration, which will contribute to the development of AnMBR-based waste-to-resource facilities towards sustainable waste management and more economic-environmental benefits output.