Abstract
This study investigates the impact of reactor architecture and biocompatibility of anode material on wastewater treatment and power generation in single-chamber (SC) and dual-chamber (DC) microbial fuel cells (MFCs) by utilizing different bacterial food cultures. Comparison between graphite-coated Cu (composite) and 304L stainless steel (SS) anodes is presented under optimized pH (7.13) and temperature (34 °C). Food cultures, especially buttermilk with an acetic acid substrate, significantly enhanced power density (PD), achieving 2.17 W/m2 using composite anode and 1.67 W/m2 using SS in SCMFCs. Mixed food cultures raised performance by ∼50 % achieving 3.31 W/m2 and 2.97 W/m2 using composite and SS anodes respectively. High chemical oxygen demand (COD) removal rates (>68 %) confirm effective wastewater treatment. These findings suggest that macroporous composite anodes can improve microbial compatibility and power output in MFCs, with optimal performance observed at neutral pH and ambient temperatures.
| Original language | English |
|---|---|
| Article number | 107706 |
| Journal | Biomass and Bioenergy |
| Volume | 195 |
| Early online date | 17 Feb 2025 |
| DOIs | |
| Publication status | Published - Apr 2025 |
Keywords
- Composite anode
- Food cultures
- Microbial fuel cell
- Power generation
- Reactor optimization
- Wastewater
ASJC Scopus subject areas
- Forestry
- Renewable Energy, Sustainability and the Environment
- Agronomy and Crop Science
- Waste Management and Disposal