MESSAI.iO

AI summary

70% confidence

A new cathode design with partial air contact improves power performance and COD removal in sediment microbial fuel cells.

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

5 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

Sediment microbial fuel cells (SMFCs) produce electricity through the bacterial oxidation of organic matter contained in the sediment, but the power density is limited and needs to be improved. In this study, a new design of a fined-type cathode with carbon cloth embedded partly, as opposed to completely, in SMFCs were utilized. As a result, the design allowing the cathode to contact air will have a positive effect on the power performance and decrease the resistance of the inner system. The power density in the cases where the cathode was about half soaked was about two folds the case where it was soaked completely. Furthermore, SMFCs would also be seen as a driving force in hastening the COD removal because it was about 1.92-folds the COD removal of the cases where SMFCs where not present. These findings can be applied to sewage treatment and improving the power performance in SMFCs.

Key findings

  • Power density increased by 2 folds when cathode was half-soaked compared to completely soaked.
  • COD removal was 1.92 times higher with SMFCs compared to without.
  • Design allowing cathode to contact air decreases inner system resistance.

Keywords

Microbial fuel cellCathodePower densitySedimentEnvironmental engineeringOrganic matter

Identifiers

DOI
10.4028/www.scientific.net/amm.548-549.855
Journal
Applied Mechanics and Materials
Year
2014