Craft Brewery Wastewater Treatment in a Scalable Microbial Fuel Cell Stack
Olivia Zapata-Martínez, Denys Villa-Gomez, Raul Tapia-Tussell, Jorge Dominguez-Maldonado +4
AI summary
70% confidenceCraft breweries release wastewater into the environment, posing serious environmental concerns. Microbial fuel cells (MFCs) are an attractive technology that has been used in industrial wastewater treatment.
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Open in lab →What they did
- System
- MFC
What worked
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Abstract
Craft breweries release wastewater into the environment, posing serious environmental concerns. Microbial fuel cells (MFCs) are an attractive technology that has been used in industrial wastewater treatment. This study used a scalable system of nine MFCs (stacked) to treat 150 L of craft brewery wastewater (CBW). The CBW had 1831 ± 85 mg COD (chemical oxygen demand) L−1. The hydraulic retention time was 5 days, with a COD removal percentage of 93 ± 1.8%. The total internal resistance of the stack was 204.8 ± 5.2 Ω at 26 ± 2 °C without the use of a metal catalyst; the reduction of oxygen was the limiting process. Finally, the sequence of treatments applied with this proposed system demonstrated its self-sustainability, which could be a viable option for the real-life conditions of this kind of wastewater. Further research is needed.
Key findings
- 8%.
- 2 Ω at 26 ± 2 °C without the use of a metal catalyst; the reduction of oxygen was the limiting process.
- Finally, the sequence of treatments applied with this proposed system demonstrated its self-sustainability, which could be a viable option for the real-life conditions of this kind of wastewater.
Keywords
Identifiers
- Journal
- Beverages
- Year
- 2024