Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes

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dc.contributor.authorDelgado, Yelitza
dc.contributor.authorTapia, Natalia
dc.contributor.authorLopez, Ester
dc.contributor.authorLlanos, Javier
dc.contributor.authorVargas, Ignacio
dc.contributor.authorFernandez-Morales, Francisco Jesus
dc.date.accessioned2025-01-20T16:04:23Z
dc.date.available2025-01-20T16:04:23Z
dc.date.issued2025
dc.description.abstractThis work investigates the performance of a Microbial Fuel Cell (MFC) for Acid Mine Drainage (AMD) treatment using bare and hydrochar-doped carbon felt (CF) anodes. Hydrochar was synthesized through hydrothermal carbonization of Spergularia rubra, followed by activation at 500 degrees C, resulting in improved O/C and H/C ratios of 0.26 and 0.78, respectively. The study reveals that doping CF anodes with non-activated and activated hydrochar significantly enhances copper recovery and electricity generation. The highest copper recovery rate of 16.0 mg/L h- 1 was achieved with activated hydrochar-doped CF (CFaH) anodes, followed by 10.6 mg/L h- 1 with nonactivated hydrochar-doped CF (CFnaH) anodes, and 7.1 mg/L h- 1 with bare CF anodes. Hydrochar doping also improved the maximum current density to 0.21 mA cm- 2 compared to 0.16 mA cm- 2 with bare CF anodes. These results demonstrate the potential of hydrochar-doped CF anodes for efficient metal and energy recovery from AMD, offering a sustainable and energy-efficient alternative to conventional methods.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.seppur.2024.129095
dc.identifier.eissn1873-3794
dc.identifier.issn1383-5866
dc.identifier.urihttps://doi.org/10.1016/j.seppur.2024.129095
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/89733
dc.identifier.wosidWOS:001291723200001
dc.language.isoen
dc.revistaSeparation and purification technology
dc.rightsacceso restringido
dc.subjectAcid mine drainage
dc.subjectMicrobial fuel cell
dc.subjectHydrochar
dc.subjectCopper recovery
dc.subjectElectricity generation
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleEnergy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
dc.typeartículo
dc.volumen354
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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