Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion

[EN] This study explores the impact of incorporating conductive materials and bioelectrochemical systems (BES) on the efficiency of anaerobic digestion (AD) of sewage sludge. The research consists of two phases: biodegradability tests using 3D-printed polylactic acid-based conductive fillers (PLA/Ca...

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Detalhes bibliográficos
Autores: Mur Gorgas, Alberto, Garcia Triviño, Antonio Vicente, Mateos González, Raúl, Escapa González, Adrián, Morán Palao, Antonio
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Recursos:Universidad de León
Repositorio:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/23690
Acesso em linha:https://www.mdpi.com/2076-3417/15/1/143
https://hdl.handle.net/10612/23690
Access Level:acceso abierto
Palavra-chave:Energía
Ingeniería química
Anaerobic digestion
Bioelectrochemical systems
Methane production
Polymeric fillers
3308.10 Tecnología de Aguas Residuales
3302.90 Ingeniería Bioquímica
3303.09 Operaciones Electroquímicas
3322.05 Fuentes no Convencionales de Energía
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oai_identifier_str oai:buleria.unileon.es:10612/23690
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spelling Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic DigestionMur Gorgas, AlbertoGarcia Triviño, Antonio VicenteMateos González, RaúlEscapa González, AdriánMorán Palao, AntonioEnergíaIngeniería químicaAnaerobic digestionBioelectrochemical systemsMethane productionPolymeric fillers3308.10 Tecnología de Aguas Residuales3302.90 Ingeniería Bioquímica3303.09 Operaciones Electroquímicas3322.05 Fuentes no Convencionales de Energía[EN] This study explores the impact of incorporating conductive materials and bioelectrochemical systems (BES) on the efficiency of anaerobic digestion (AD) of sewage sludge. The research consists of two phases: biodegradability tests using 3D-printed polylactic acid-based conductive fillers (PLA/Carbon Black and PLA/Graphene) and semi-continuous assays integrating an external BES into the AD process. Results from biodegradability tests indicate that conductive fillers enhance around 50% methane production during the start-up phase, with microbial communities adapting over time to reduce variability in methane yields. Moreover, as the experiment progressed, the methane yields of the digesters with and without fillers became equal. Semi-continuous experiments demonstrate that BES integration improves process stability and methane production by achieving a 5–10% improvement in the amount of methane in the biogas throughout the entire operation, even under high organic loads, by facilitating diverse electron transfer pathways. The challenges of BES operation highlight the need for optimized designs to ensure scalability. Microbial analyses reveal that BES application shifts methanogenic pathways, favouring acetoclastic methanogenesis. Overall, the findings underscore the potential of conductive materials and BES to improve biogas quality and production, contributing to sustainable wastewater management and renewable energy generation.SIThis research was funded by the Ministerio de Ciencia e Innovación (Spain Government), project ref: PID2020-115948RB-I00 funded by MCIN/AEI/10.13039/501100011033. We would also like to thank the staff of the WWTP in León (Spain).Agencia Estatal de InvestigaciónMDPIIngenieria QuimicaFacultad de Ciencias Biologicas y Ambientales2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://www.mdpi.com/2076-3417/15/1/143https://hdl.handle.net/10612/23690reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad de LeónInglésinfo:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/PID2020-115948RB-I00http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/236902026-06-24T12:43:27Z
dc.title.none.fl_str_mv Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
title Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
spellingShingle Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
Mur Gorgas, Alberto
Energía
Ingeniería química
Anaerobic digestion
Bioelectrochemical systems
Methane production
Polymeric fillers
3308.10 Tecnología de Aguas Residuales
3302.90 Ingeniería Bioquímica
3303.09 Operaciones Electroquímicas
3322.05 Fuentes no Convencionales de Energía
title_short Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
title_full Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
title_fullStr Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
title_full_unstemmed Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
title_sort Influence of Adding Conductive Materials and Integrating Bio Electrochemical Systems on the Efficiency of Anaerobic Digestion
dc.creator.none.fl_str_mv Mur Gorgas, Alberto
Garcia Triviño, Antonio Vicente
Mateos González, Raúl
Escapa González, Adrián
Morán Palao, Antonio
author Mur Gorgas, Alberto
author_facet Mur Gorgas, Alberto
Garcia Triviño, Antonio Vicente
Mateos González, Raúl
Escapa González, Adrián
Morán Palao, Antonio
author_role author
author2 Garcia Triviño, Antonio Vicente
Mateos González, Raúl
Escapa González, Adrián
Morán Palao, Antonio
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingenieria Quimica
Facultad de Ciencias Biologicas y Ambientales
dc.subject.none.fl_str_mv Energía
Ingeniería química
Anaerobic digestion
Bioelectrochemical systems
Methane production
Polymeric fillers
3308.10 Tecnología de Aguas Residuales
3302.90 Ingeniería Bioquímica
3303.09 Operaciones Electroquímicas
3322.05 Fuentes no Convencionales de Energía
topic Energía
Ingeniería química
Anaerobic digestion
Bioelectrochemical systems
Methane production
Polymeric fillers
3308.10 Tecnología de Aguas Residuales
3302.90 Ingeniería Bioquímica
3303.09 Operaciones Electroquímicas
3322.05 Fuentes no Convencionales de Energía
description [EN] This study explores the impact of incorporating conductive materials and bioelectrochemical systems (BES) on the efficiency of anaerobic digestion (AD) of sewage sludge. The research consists of two phases: biodegradability tests using 3D-printed polylactic acid-based conductive fillers (PLA/Carbon Black and PLA/Graphene) and semi-continuous assays integrating an external BES into the AD process. Results from biodegradability tests indicate that conductive fillers enhance around 50% methane production during the start-up phase, with microbial communities adapting over time to reduce variability in methane yields. Moreover, as the experiment progressed, the methane yields of the digesters with and without fillers became equal. Semi-continuous experiments demonstrate that BES integration improves process stability and methane production by achieving a 5–10% improvement in the amount of methane in the biogas throughout the entire operation, even under high organic loads, by facilitating diverse electron transfer pathways. The challenges of BES operation highlight the need for optimized designs to ensure scalability. Microbial analyses reveal that BES application shifts methanogenic pathways, favouring acetoclastic methanogenesis. Overall, the findings underscore the potential of conductive materials and BES to improve biogas quality and production, contributing to sustainable wastewater management and renewable energy generation.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.mdpi.com/2076-3417/15/1/143
https://hdl.handle.net/10612/23690
url https://www.mdpi.com/2076-3417/15/1/143
https://hdl.handle.net/10612/23690
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/PID2020-115948RB-I00
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad de León
instname_str Universidad de León
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.228081

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