Comparative Microbial Communities of Anode Associated Soils in Sediment Microbial Fuel Cells of Rice Field and Drainage Ditch Soils
Jimmy Kuo 2,3
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Department of Bioresources, Da-Yeh University, 168 University Road, Dacun, Changhua 51591, Taiwan
Department of Planning and Research, National Museum of Marine Biology and Aquarium, Pingtung 94450, Taiwan
Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 94450, Taiwan
Department of Biomedical sciences, Da-Yeh University, 168 University Road, Dacun, Changhua 51591, Taiwan
Submission date: 2021-04-21
Final revision date: 2021-06-14
Acceptance date: 2021-06-17
Online publication date: 2021-11-16
Publication date: 2021-12-23
Corresponding author
Chorng-Horng Lin   

DaYeh University, Taiwan
Pol. J. Environ. Stud. 2022;31(1):179-188
In this study, the microbial community of the anode-associated soil in sediment microbial fuel cells (MFCs) was investigated. Sediments from the drainage ditch (D) and rice field (RF) were treated with or without autoclaving for single-chamber and mediator-free MFCs. Without sterilization, the voltage output reached a maximum of 124 and 120 mV for the sediments from D and RF on days 30 and 56, respectively. By day 40, the voltage output of the MFCs with sterilization became positive and continued to increase. The microbial communities of the different sediments were clustered together, indicating that the voltage release correlated positively with the presence of soil microbes. Spearman rank correlation analysis showed that the genus Geobacter was positively correlated with Defluviicoccus, Desulfatiglans, Sulfurimonas, Synthrophobacter, Thiobacillus, and Thermodesulfovibrio and negatively correlated with Holophaga, Opitutus, Paludibacter, and Pseudomonas. The genera Geothrix showed the dominant changes in the sediments with sterilization. These results indicate that the sediment MFC device could change the microbial composition adapted to the anodic environment.
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