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Polarization potential has no effect on maximum current density produced by Halotolerant bioanodes
MURIEL ELISA GONZALEZ MUÑOZ
XOCHITL DOMINGUEZ BENETTON
Jorge Arturo Domínguez Maldonado
DAVID SERGIO VALDES LOZANO
Daniella Esperanza Pacheco Catalán
BENJAMIN OTTO ORTEGA MORALES
Liliana María Alzate Gaviria
Acceso Abierto
Atribución-NoComercial-SinDerivadas
10.3390/en11030529
POLARIZATION POTENTIAL
HALOTOLERANT BIOANODES
MICROBIAL ELECTROCHEMICAL SYSTEMS
Halotolerant bioanodes are considered an attractive alternative in microbial electrochemical systems, as they can operate under higher conductive electrolytes, in comparison with traditional wastewater and freshwater bioanodes. The dependency between energetic performance and polarization potential has been addressed in several works; however the vast majority discusses its effect when wastewater or freshwater inocula are employed, and fewer reports focus on inocula from highly-saline environments. Moreover, the effect of the polarization potential on current production is not fully understood. To determine if the polarization potential has a significant effect on current production, eight bioanodes were grown by chronoamperometry at positive and negative potentials relative to the reference electrode (+0.34 V/SHE and −0.16 V/SHE), in a three-electrode set-up employing sediments from a hyperhaline coastal lagoon. The maximum current density obtained was the same, despite the differences in the applied potential. Our findings indicate that even if differences in organic matter removal and coulombic efficiency are obtained, the polarization potential had no statistically significant effect on overall current density production.
2018
Artículo
Energies, 11(3), 529, 2018.
Inglés
González-Muñoz, M., Dominguez-Benetton, X., Domínguez-Maldonado, J., Valdés-Lozano, D., Pacheco-Catalán, D., Ortega-Morales, O., & Alzate-Gaviria, L. (2018). Polarization Potential Has No Effect on Maximum Current Density Produced by Halotolerant Bioanodes. Energies, 11(3), 529.
INGENIERÍA Y TECNOLOGÍA
Versión publicada
publishedVersion - Versión publicada
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