MESSAI.iO

AI summary

70% confidence

Researchers isolated an electricity-generating bacteria, Bacillus cereus, from oil sludge MFCs and optimized its adaptability to nitrogen-phosphorus ratio, temperature, and pH.

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

2 extracted values

View extracted values

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

Open in lab →

What they did

System
MFC

What worked

No outcome metrics extracted yet.

Abstract

Abstract Electricity-generating bacteria as biocatalysts for microbial fuel cells (MFCs), and their species and power generation performance determine the performance of the MFC for pollution control and power generation. For that purpose, an electricity-generating bacteria isolated from the oily sludge MFCs, and adjusted the adaptability of nitrogen-to-phosphorus ratio (3.67:1, 4.67:1, 5.67:1, and 6.67:1), temperature (5 ℃, 10 ℃, 15 ℃, 20 ℃, 25 ℃, 30 ℃, 35 ℃) and pH (pH = 6, 6.5, 7, 7.5, 8). The results of this study showed that electricity-generating bacteria was identified as Bacillus cereus , with a rod-shaped cell, about 0.5-1.0 µm in length. The optimal nitrogen-phosphorus ratio, temperature and pH of MFCs were 4.67:1, 25 ℃ and pH = 7, respectively, and its output voltage was up to 168.05 mV. The study of this functional bacteria will provide beneficial assistance for the improvement of oil removal and power generation performance of oily sludge MFCs.

Key findings

  • Optimal nitrogen-phosphorus ratio: 4.67:1
  • Optimal temperature: 25 ℃
  • Optimal pH: 7
  • Maximum output voltage: 168.05 mV

Keywords

AdaptabilityMicrobial fuel cellElectricityBacteriaWaste managementFuel oil

Identifiers

DOI
10.21203/rs.3.rs-1470545/v1
Journal
Research Square
Year
2022