Performance study of microbial fuel cell stack system for treating fine chemical wastewater

IF 9 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2025-09-30 DOI:10.1016/j.biortech.2025.133419

Hongwei Chen , Ao Lei , Yangfan Song , Yanmin Li , Qianyun Wu , Liuping He , Chao Han , Pei Wu , Xin Yang

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Abstract

This study developed a stacked anaerobic fluidized bed microbial fuel cell (SAFB-MFC) system for treating refractory fine chemical wastewater containing high concentrations of benzene compounds, while simultaneously generating electricity. The system integrated 45 air–cathode MFC units within a shared anode chamber using a three-dimensional layout, achieving high integration density. Experimental results demonstrated that the total power output increased linearly with the number of connected units, peaking when all are connected. Units in the middle and upper sections exhibited superior performance to those at the bottom, whereas horizontal performance was uniform. Increasing superficial velocity enhanced mass transfer, raising the maximum power density by 18.3 ± 2.1 %. Parallel operation increased the chemical oxygen demand (COD) removal rate by 9.1 % and total power output by 43.5 times compared to a single unit. The system demonstrates significant potential for scalable and efficient application in real industrial wastewater treatment.

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微生物燃料电池堆处理精细化工废水的性能研究。

本研究开发了一种叠式厌氧流化床微生物燃料电池（SAFB-MFC）系统，用于处理含高浓度苯化合物的难处理精细化工废水，同时发电。该系统采用三维布局将45个空气阴极MFC单元集成在一个共用阳极腔内，实现了高集成密度。实验结果表明，总输出功率随连接单元的数量线性增加，当所有单元都连接时达到峰值。中上段的单位表现出优于底部的单位，而水平段的单位表现一致。增加表面速度可以增强传质，使最大功率密度提高18.3% ± 2.1 %。与单机组相比，并联运行使化学需氧量（COD）去除率提高了9.1% %，总输出功率提高了43.5倍。该系统显示了在实际工业废水处理中可扩展和有效应用的巨大潜力。

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.