Pilot-scale Microbial Fuel Cells (MFCs): A meta-analysis study to inform full-scale design principles for optimum wastewater treatment
Pilot-scale Microbial Fuel Cells (MFCs): A meta-analysis study to inform full-scale design principles for optimum wastewater treatment
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DOI：
10.1016/j.jclepro.2022.131227
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发表时间：
2022-03-18
影响因子：
11.1
通讯作者：
Theodosiou, Pavlina
中科院分区：
文献类型：
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作者：
Bird, Hannah;Heidrich, Elizabeth Susan;Theodosiou, Pavlina
微生物燃料电池（MFC）将废水直接转化为电能，降低化学需氧量（COD），从而同时处理废水。在过去的25年里，全球对清洁水和能源的需求不断增长，推动了对MFC的研究兴趣，从实验室创新转变为中试规模的示范，甚至一些商业单位。然而，该技术仍然缺乏现有处理工艺所具有的适当设计框架。为了解决这一差距，本文系统地分析了中试规模的MFC数据，表明尽管环境/气候，操作参数，废水类型，建筑和性能在当前生产方面存在很大的变化，但废水处理的量和速率之间存在很强的相关性。使用这些相关性，开发了一个框架，设计MFC给反应器的大小和水力停留时间处理任何给定的废水在任何规模。在这项荟萃分析中，对不同的研究进行了比较，标准化了所提供的数据，并使用这些数据来概括MFC的设计和性能。改进一致的报告可以进一步加强这一框架，使数据更容易获得，并最终有助于未来的研究和微生物燃料作为一种废水处理技术的商业化。
Microbial Fuel Cells (MFCs) directly convert wastewater into electricity, reducing its chemical oxygen demand (COD), thus concomitantly treating it. Increasing global demands for clean water and energy has driven research interest in MFCs over the last 25 years, transitioning from a laboratory innovation into pilot-scale demonstrations, and even some commercial units. However, the technology still lacks the proper framework for design that existing treatment processes have. To address this gap, this paper systematically analyses pilot-scale MFC data, showing that despite large variation in environments/climates, operational parameters, wastewater types, architecture, and performance in terms of current production, strong correlations exist between both the amount and the rate of wastewater treatment. Using these correlations, a framework was developed for designing MFCs to give reactor size and hydraulic retention time for treating any given wastewater at any scale. In this meta-analysis, vastly different studies have been compared standardising the data presented and using this to draw generalisations about MFC design and performance. Improved consistent reporting could further strengthen this framework, making data more accessible and ultimately aid future research and commercialisation of MFCs as a wastewater treatment technology.