Pasternak Grzegorz, de Rosset Aleksander, Tyszkiewicz Natalia, Widera Bartosz, Greenman John, Ieropoulos Ioannis
Department of Process Engineering and Technology of Polymer and Carbon Materials, Wroclaw University of Science and Technology, 50-344 Wrocław, Poland.
Centre for Research in Biosciences, Department of Applied Sciences, University of the West of England, BS16 1QY Bristol, UK.
iScience. 2022 Jun 2;25(7):104510. doi: 10.1016/j.isci.2022.104510. eCollection 2022 Jul 15.
Bioelectrochemical systems (BESs) have made significant progress in recent years in all aspects of their technology. BESs usually work with a membrane or a separator, which is one of their most critical components affecting performance. Quite often, biofilm from either the anolyte or catholyte forms on the membrane, which can negatively affect its performance. In critical cases, the long-term power performance observed for microbial fuel cells (MFCs) has dropped by over 90%. Surface modification and composite material approaches as well as chemical and physical cleaning techniques involving surfactants, acids, hydroxides, and ultrasounds have been successfully implemented to combat biofilm formation. Surface modifications produced up to 6-7 times higher power performance in the long-term, whereas regeneration strategies resulted in up to 100% recovery of original performance. Further studies include tools such as fluid dynamics-based design and plasma cleaning. The biofouling area is still underexplored in the field of bioelectrochemistry and requires systematic improvement. Therefore, this review summarizes the most recent knowledge with the aim of helping the research and engineering community select the best strategy and discuss further perspectives for combating the undesirable biofilm.
生物电化学系统（BESs）近年来在其技术的各个方面都取得了重大进展。BESs通常与膜或分离器一起工作，这是影响其性能的最关键组件之一。阳极电解液或阴极电解液中的生物膜常常会在膜上形成，这会对其性能产生负面影响。在关键情况下，微生物燃料电池（MFCs）的长期功率性能下降了90%以上。表面改性和复合材料方法以及涉及表面活性剂、酸、氢氧化物和超声波的化学和物理清洁技术已成功用于对抗生物膜的形成。长期来看，表面改性使功率性能提高了6至7倍，而再生策略则使原始性能恢复率高达100%。进一步的研究包括基于流体动力学的设计和等离子体清洁等工具。生物污垢领域在生物电化学领域仍未得到充分探索，需要系统改进。因此，本综述总结了最新知识，旨在帮助研究和工程界选择最佳策略，并讨论对抗不良生物膜的进一步前景。
