MESSAI.iO
Generic MFCRepresentative model
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Representative MFC — matched on the paper’s system type only, not its reactor or geometry.

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What they did

System
MFC

What worked

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Abstract

In this study, for the first time, the conduction-based model is extended, and then combined with Genetic Algorithm to estimate the design parameters of a MFC treating dairy wastewater. The optimized parameters are, then, validated. The estimated half-saturation potential of -0.13 V (vs. SHE) is in good agreement while the biofilm conductivity of 8.76×10⁻⁴ mS cm⁻¹ is three orders of magnitude lower than that previously-reported for pure-culture biofilm. Simulations show that the ohmic and concentration overpotentials contribute almost equally in dropping cell voltage in which the concentration film and biofilm conductivity comprise the main resistances, respectively. Thus, polarization analysis and determining the controlling steps will be possible through that developed extension. This study introduces a reliable method to estimate the design parameters of a particular MFC and to characterize it.

Keywords

Microbial fuel cellWastewaterOhmic contactSaturation (graph theory)Biological systemConductivity

Identifiers

DOI
10.1016/j.biortech.2013.07.054
PubMed
23941707
Journal
Bioresource Technology
Year
2013