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

This 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 °C, resulting in impro...

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Autores: Delgado González, Yelitza, Tapia , Natalia, Vargas , Ignacio, López Fernández, Ester, Llanos López, Javier, Fernández Morales, Francisco Jesús
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/42059
Acceso en línea:https://doi.org/10.1016/j.seppur.2024.129095
https://hdl.handle.net/10578/42059
Access Level:acceso abierto
Palabra clave:Acid mine drainage
Copper recovery
Electricity generation
Hydrochar
Microbial fuel cell
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spelling Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodesDelgado González, YelitzaTapia , NataliaVargas , IgnacioLópez Fernández, EsterLlanos López, JavierFernández Morales, Francisco JesúsAcid mine drainageCopper recoveryElectricity generationHydrocharMicrobial fuel cellThis 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 °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 non-activated 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.This 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 °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 non-activated 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.ELSEVIER202520252025info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1016/j.seppur.2024.129095https://hdl.handle.net/10578/42059reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/420592026-05-27T07:36:41Z
dc.title.none.fl_str_mv Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
title Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
spellingShingle Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
Delgado González, Yelitza
Acid mine drainage
Copper recovery
Electricity generation
Hydrochar
Microbial fuel cell
title_short Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
title_full Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
title_fullStr Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
title_full_unstemmed Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
title_sort Energy and copper recovery from acid mine drainage by microbial fuel cells. Effect of the hydrochar doping on carbon felt anodes
dc.creator.none.fl_str_mv Delgado González, Yelitza
Tapia , Natalia
Vargas , Ignacio
López Fernández, Ester
Llanos López, Javier
Fernández Morales, Francisco Jesús
author Delgado González, Yelitza
author_facet Delgado González, Yelitza
Tapia , Natalia
Vargas , Ignacio
López Fernández, Ester
Llanos López, Javier
Fernández Morales, Francisco Jesús
author_role author
author2 Tapia , Natalia
Vargas , Ignacio
López Fernández, Ester
Llanos López, Javier
Fernández Morales, Francisco Jesús
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Acid mine drainage
Copper recovery
Electricity generation
Hydrochar
Microbial fuel cell
topic Acid mine drainage
Copper recovery
Electricity generation
Hydrochar
Microbial fuel cell
description This 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 °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 non-activated 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.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.seppur.2024.129095
https://hdl.handle.net/10578/42059
url https://doi.org/10.1016/j.seppur.2024.129095
https://hdl.handle.net/10578/42059
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv ELSEVIER
publisher.none.fl_str_mv ELSEVIER
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
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