Evaluation of Current Output in Pseudomonas Aeruginosa Microbial Fuel Cells Using Glycerol as Susbtrate and Nafion 117 as Proton Exchange Membrane
Adriano S. Gomes, Camilo E. La Rotta, Marcia Nitschke, Ernesto R. González
AI summary
70% confidencePseudomonas aeruginosa MFCs using glycerol as substrate and Nafion 117 as PEM achieved a maximum current output of 15.3 μAcm-2.
Generated by MESSAI extraction pipeline · review against source PDF
Representative MFC — matched on the paper’s system type only, not its reactor or geometry.
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
Microbial fuel cells (MFCs) are devices that use microorganisms to produce electricity. Pseudomonas aeruginosa is a rod-shaped bacterium and the only bacterial species that produces pyocyanin (PYO). In MFCs, the pyocyanin can play an important role as an electron shuttle. PYO production can be improved in glycerol enriched culture media. Glycerol has become a huge market problem because it is de main biodiesel byproduct. Its use as fuel in MFC is being promising. In the present study we evaluated in a MFC the current output achieved by pure cultures of P. aeruginosa cultivated in King broth medium using Nafion® 117 as proton exchange membrane. Results have shown that a maximum current output of 15.3 μAcm-2 can be achieved when using the chosen culture medium. In parallel, experiments involving the oxygen reduction reaction showed that Nafion® membranes can lose the activity due to the medium composition.
Key findings
- P. aeruginosa's pyocyanin production can be improved in glycerol-enriched culture media.
- Nafion 117 membranes can lose activity due to medium composition during oxygen reduction reaction.
- Glycerol is a promising fuel source for MFCs, addressing the market problem of biodiesel byproduct disposal.
Keywords
Identifiers
- Journal
- ECS Transactions
- Year
- 2011