Enhanced processing of exhaust gas and power generation by connecting mini-tubular microbial fuel cells in series with a biotrickling filter

Shu-Hui Liu, Sih-Hua Fu, Chia-Ying Chen and Chi-Wen Lin

Renewable Energy, 2020, vol. 156, issue C, 342-348

Abstract: Tubular microbial fuel cells (Tube-MFCs) were placed on top of a biotrickling filter-microbial fuel cell (BTF-MFC) to form a tubular biotrickling filter microbial fuel cell (Tube-BTF-MFC) system. Adding Tube-MFCs greatly increased the power output of a Tube-BTF-MFC in treating ethyl acetate (EA). With a progressive water flow pattern generated by circulating water spray, the Tube-MFC can reduce the sharing of electrolyte between anode chambers of MFCs and improve the power output of Tube-BTF-MFC. With 129.8 g/m3·h of EA, the Tube-BTF-MFC exhibited an EA removal efficiency of 93% and a closed circuit voltage (186.5 mV). The maximum elimination capacity of EA by the Tube-BTF-MFC was 1.47 times greater than that of the BTF-MFC, while the highest generated power density was 2.13 times greater. Adding Tube-MFCs to a BTF-MFC system can effectively improve its removal efficiency for EA and increase its power output. The proposed Tube-BTF-MFC can be used to treat industrially emitted gaseous volatile organic compounds while generating electricity.

Keywords: Electricity generation; Elimination capacity; Ethyl acetate; Removal efficiency; Tubular biotrickling filter microbial fuel cell (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:156:y:2020:i:c:p:342-348

DOI: 10.1016/j.renene.2020.04.028

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