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MFC research in electrode, bacteria. This work presents a Monod-based mathematical model able to predict the performance of a bio...

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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
Substrate
pure compound
Inoculum
two different microbial populations performing electrogenic and non-electrogenic metabolisms

What worked

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Abstract

This work presents a Monod-based mathematical model able to predict the performance of a bioelectrochemical system (BES) treating Acid Mine Drainage (AMD). The BES was operated as a microbial fuel cell (MFC), in order to recover not only the metals but also all the chemical energy contained. The model was based on two different microbial populations performing electrogenic and non-electrogenic metabolisms respectively. During the MFC operation the metal contained in the AMD were the electron acceptors at the cathode. Because of that, Cu2+ and Fe3+ were reduced to Cu0 and Fe2+. The model formulation was based on a set of differential equations describing the simultaneous evolution of the main chemical components in the system. The model developed accurately predicted the concentration of the acetate and biomass at the anode, the metals at the cathode as well as the electrical current generated.

Keywords

Microbial fuel cellCathodeAnodeAcid mine drainageChemical energyMetal

Identifiers

DOI
10.30955/gnc2023.00462
Journal
Global NEST International Conference on Environmental Science & Technology
Year
2023