Utilization of Cheese Whey for Energy Generation in Microbial Fuel Cells: Performance Evaluation and Metagenomic Analysis DOI Creative Commons
Segundo Rojas-Flores, Luis Cabanillas-Chirinos, Nélida Milly Otiniano

et al.

Fermentation, Journal Year: 2025, Volume and Issue: 11(4), P. 176 - 176

Published: March 26, 2025

The dairy industry generates large volumes of whey as a byproduct cheese production, with high organic load. Its untreated discharge contaminates water bodies, reduces dissolved oxygen, and damages aquatic ecosystems. In Peru, especially in the rural areas Andes, thousands tons industrial waste are produced annually, representing an environmental economic challenge. lack sustainable technologies for its management drives need innovative solutions, such microbial fuel cells (MFCs), which combine treatment renewable energy generation. This research uses MFC technology substrate to observe potential generate electrical treat contaminants. Three liters from company Trujillo, were used stored at 10 °C. Each contained 800 mL employed activated carbon anode zinc cathode. A maximum voltage 0.867 ± 0.059 V was reached, current 4.114 0.239 mA recorded on 11th day. power density 1.585 0.061 mW/cm2, 4.448 A/cm2, internal resistance MFCs 16.847 0.911 Ω. initial pH approximately 3.0, increasing 4.135 0.264 day, conductivity increased 19.101 1.025 mS/cm first day 170.062 9.511 oxidation-reduction (ORP) 104.287 4.058 mV peak electricity generation (day 11). Additionally, 70% reduction chemical oxygen demand (COD) achieved, dropping 4650.52 10.54 mg/L 1400.64 23.25 last Metagenomic analysis identified two dominant bacterial phyla: Bacteroidota 48.47% Proteobacteria 29.83%. most abundant families Bacteroidaceae (38.58%) Acetobacteraceae (33.39%). study validates transform into resource, aligning sustainability circular economy goals, regions like Peru.

Language: Английский

Effects of Retention Time, pH, Temperature and Type of Fruit Wastes on the Bioelectricity Generation Performance of Microbial Fuel Cell during the Biotreatment of Pharmaceutical Wastewater: Experimental Study, Optimization and Modelling DOI
O. D. Akinwumi, Ebenezer Olujimi Dada,

S. E. Agarry

et al.

Environmental Processes, Journal Year: 2024, Volume and Issue: 11(4)

Published: Sept. 18, 2024

Language: Английский

Citations

4
Electrochemically active biofilms responses to gadolinium stress during wastewater treatment in bioelectrochemical systems DOI

Nyambane Clive Ontita,

Richmond Anaman, Emmanuel Konadu Sarkodie

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 137941 - 137941

Published: March 1, 2025

Language: Английский

Citations

0
Utilization of Cheese Whey for Energy Generation in Microbial Fuel Cells: Performance Evaluation and Metagenomic Analysis DOI Creative Commons
Segundo Rojas-Flores, Luis Cabanillas-Chirinos, Nélida Milly Otiniano

et al.

Fermentation, Journal Year: 2025, Volume and Issue: 11(4), P. 176 - 176

Published: March 26, 2025

The dairy industry generates large volumes of whey as a byproduct cheese production, with high organic load. Its untreated discharge contaminates water bodies, reduces dissolved oxygen, and damages aquatic ecosystems. In Peru, especially in the rural areas Andes, thousands tons industrial waste are produced annually, representing an environmental economic challenge. lack sustainable technologies for its management drives need innovative solutions, such microbial fuel cells (MFCs), which combine treatment renewable energy generation. This research uses MFC technology substrate to observe potential generate electrical treat contaminants. Three liters from company Trujillo, were used stored at 10 °C. Each contained 800 mL employed activated carbon anode zinc cathode. A maximum voltage 0.867 ± 0.059 V was reached, current 4.114 0.239 mA recorded on 11th day. power density 1.585 0.061 mW/cm2, 4.448 A/cm2, internal resistance MFCs 16.847 0.911 Ω. initial pH approximately 3.0, increasing 4.135 0.264 day, conductivity increased 19.101 1.025 mS/cm first day 170.062 9.511 oxidation-reduction (ORP) 104.287 4.058 mV peak electricity generation (day 11). Additionally, 70% reduction chemical oxygen demand (COD) achieved, dropping 4650.52 10.54 mg/L 1400.64 23.25 last Metagenomic analysis identified two dominant bacterial phyla: Bacteroidota 48.47% Proteobacteria 29.83%. most abundant families Bacteroidaceae (38.58%) Acetobacteraceae (33.39%). study validates transform into resource, aligning sustainability circular economy goals, regions like Peru.

Language: Английский

Citations

0