MESSAI.iO

AI summary

70% confidence

This study explores the potential of biogas liquid waste as a renewable energy source using microbial fuel cell (MFC) technology, achieving maximum voltages of 1302.2 mV, 1084.3 mV, and 1675.8 mV in different MFC configurations.

Generated by MESSAI extraction pipeline · review against source PDF

Generic MFCRepresentative model
Click to animate flow
loading 3D model…

Representative MFC — matched on the paper’s system type only, not its reactor or geometry.

Extraction

Reported parameters

34 extracted values

View extracted values

Open in lab for full controls, parameter editing, and template overlays.

Open in lab →

What they did

System
MFC
Substrate
real wastewater

What worked

No outcome metrics extracted yet.

Abstract

This study examines the potential of biogas liquid waste as a source of electrical energy through microbial fuel cell (MFC) technology. The results showed that biogas effluent in one-room MFC produced a maximum voltage of 1302.2 mV. In the two-room MFC with KMnO4 electrolyte, the voltage reached 1084.3 mV with an electric current of 0.1 mA. At the same time, the two-chamber MFC with K2Cr2O4 advanced a maximum voltage of 1675.8 mV and an electric current of 0.99 mA. Characterization of the MFC substrate showed a decrease in organic matter of biogas liquid waste, with C-organic content of 2.20%, total nitrogen of 1.85%, and C/N ratio of 1.19. The COD value decreased to 500.96 mg/L, while the BOD level decreased to 300.23 mg/L. Bacteria in MFC from biogas effluent are dominantly Gram-positive with rod and Sarcina forms, except for one Gram-negative isolate in the form of Spirillum.

Key findings

  • Biogas effluent in one-room MFC produced a maximum voltage of 1302.2 mV.
  • Two-room MFC with KMnO4 electrolyte reached a voltage of 1084.3 mV with an electric current of 0.1 mA.
  • Two-chamber MFC with K2Cr2O4 advanced a maximum voltage of 1675.8 mV and an electric current of 0.99 mA.
  • Characterization of MFC substrate showed a decrease in organic matter, C-organic content, total nitrogen, and C/N ratio.
  • COD value decreased to 500.96 mg/L, while the BOD level decreased to 300.23 mg/L.
  • Bacteria in MFC from biogas effluent are dominantly Gram-positive with rod and Sarcina forms, except for one Gram-negative isolate in the form of Spirillum.

Keywords

BiogasRenewable energyMicrobial fuel cellWaste managementRenewable resourceAnimal waste

Identifiers

DOI
10.26877/asset.v6i2.17931
Journal
Advance Sustainable Science, Engineering and Technology
Year
2024