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A review of the factors affecting the performance of anaerobic membrane bioreactor and strategies to control membrane fouling
Reviews in Environmental Science and Bio/Technology ( IF 14.4 ) Pub Date : 2021-06-08 , DOI: 10.1007/s11157-021-09580-2
Roger Jay De Vela

The performance of the different configurations of AnMBRs is affected by operating parameters including solid retention time (SRT), hydraulic retention time (HRT), organic loading rate (OLR), sludge recycle rate, temperature and wastewater characteristics. Generally, the optimum operating condition is characterized by a longer SRT and HRT, higher OLR at a mesophilic temperature range. These parameters also affect the propensity of membrane fouling which is considered as the major challenge limiting its sustainable use. Hence, these parameters need to be understood and optimized. The common fouling control strategies include sub-critical flux operation, membrane relaxation, backwashing, biogas sparging, sludge recycle and use of coagulants and turbulence promoters are inadequate in fully controlling the fouling process. Hence, new and emerging technologies like enzymatic or bacterial degradation through quorum quenching technology are being explored. Moreover, integration of rotary disks/membrane, attached growth system, dynamic membrane, electrochemical membrane and baffled reactor configurations are introduced as modifications to the conventional AnMBR. Review of these strategies reveal that these novel configurations of AnMBR and the use of quorum quenching technology offer a potential sustainable approach to fouling control, and hence should be explored further.



中文翻译:

厌氧膜生物反应器性能影响因素及膜污染控制策略综述

AnMBR 不同配置的性能受操作参数的影响,包括固体停留时间 (SRT)、水力停留时间 (HRT)、有机负载率 (OLR)、污泥回收率、温度和废水特性。通常,最佳操作条件的特点是在中温温度范围内具有更长的 SRT 和 HRT、更高的 OLR。这些参数也影响膜污染的倾向,这被认为是限制其可持续使用的主要挑战。因此,需要了解和优化这些参数。常见的污垢控制策略包括亚临界通量操作、膜松弛、反冲洗、沼气喷射、污泥回收以及使用混凝剂和湍流促进剂不足以完全控制污垢过程。因此,正在探索新兴技术,例如通过群体淬灭技术进行酶促或细菌降解。此外,还引入了旋转盘/膜、附着生长系统、动态膜、电化学膜和挡板反应器配置的集成,作为对传统 AnMBR 的修改。对这些策略的回顾表明,这些 AnMBR 的新配置和群体淬火技术的使用为污染控制提供了一种潜在的可持续方法,因此应进一步探索。作为对传统 AnMBR 的改进,引入了电化学膜和挡板反应器配置。对这些策略的回顾表明,这些 AnMBR 的新配置和群体淬火技术的使用为污染控制提供了一种潜在的可持续方法,因此应进一步探索。作为对传统 AnMBR 的改进,引入了电化学膜和挡板反应器配置。对这些策略的回顾表明,这些 AnMBR 的新配置和群体淬火技术的使用为污染控制提供了一种潜在的可持续方法,因此应进一步探索。

更新日期:2021-06-08
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