A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)

PCBs constitute a residue rich in metals, among which copper stands out due to its majority content, much higher than that found in natural deposits, so that it is a potential secondary resource. Many attempts have been made to recover copper via biohydrometallurgy because it is an environmentally f...

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Autores: Iglesias González, Nieves, Dorado Castaño, Antonio David|||0000-0003-0238-5867, Ramírez del Amo, Pablo, Mazuelos Rojas, Alfonso
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/396665
Acesso em linha:https://hdl.handle.net/2117/396665
https://dx.doi.org/10.1016/j.mineng.2023.108459
Access Level:acceso abierto
Palavra-chave:Copper industry and trade
PCBs
Biohydrometallurgy
Copper
Bioreactor
Solvent extraction
Electrowinning
Coure--Indústria i comerç
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines::Processament de minerals
Àrees temàtiques de la UPC::Enginyeria química::Química orgànica::Compostos orgànics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
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spelling A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)Iglesias González, NievesDorado Castaño, Antonio David|||0000-0003-0238-5867Ramírez del Amo, PabloMazuelos Rojas, AlfonsoCopper industry and tradePCBsBiohydrometallurgyCopperBioreactorSolvent extractionElectrowinningCoure--Indústria i comerçÀrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines::Processament de mineralsÀrees temàtiques de la UPC::Enginyeria química::Química orgànica::Compostos orgànicsÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residusPCBs constitute a residue rich in metals, among which copper stands out due to its majority content, much higher than that found in natural deposits, so that it is a potential secondary resource. Many attempts have been made to recover copper via biohydrometallurgy because it is an environmentally friendly route, however, one of its main drawbacks is the low productivity achieved. A global process based on circularity for obtaining copper cathodes from PCBs is proposed. First, PCBs from end-of-life mobile phones are shred to sizes between 800 and 2000 µm. Copper is leached from these pieces in a continuous stirred tank reactor (CSTR) at high ferric concentration, at a moderate temperature of 60 °C reaching dissolution rate higher than 1 g/L·h and a yield of 99 %. The solution that leaves the CSTR with concentrations of up to 10 g/L of Cu is passed through a high-performance bioreactor for the regeneration of Fe(III). A biooxidation rate of 1.3 g/L·h was achieved, and no inhibition was observed. Concurrently, copper is recovered in metallic state by solvent extraction and electrowinning with recirculation streams becoming a more profitable and sustainable complete global process.The experimental work was carried out at University of Sevilla, with exception of the research related with electrolysis and collection of EoL mobiles and mechanical pretreatment which was carried out at Universitat Politècnica de Catalunya and funded by project PID2020-117520RA-I00 of MCIN/AEI/10.13039/501100011033.Peer Reviewed20242024-01-0120232023-11-20journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/396665https://dx.doi.org/10.1016/j.mineng.2023.108459reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3966652026-05-27T15:37:01Z
dc.title.none.fl_str_mv A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
title A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
spellingShingle A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
Iglesias González, Nieves
Copper industry and trade
PCBs
Biohydrometallurgy
Copper
Bioreactor
Solvent extraction
Electrowinning
Coure--Indústria i comerç
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines::Processament de minerals
Àrees temàtiques de la UPC::Enginyeria química::Química orgànica::Compostos orgànics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
title_short A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
title_full A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
title_fullStr A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
title_full_unstemmed A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
title_sort A high productivity bioprocess for obtaining metallic copper from printed circuit boards (PCBs)
dc.creator.none.fl_str_mv Iglesias González, Nieves
Dorado Castaño, Antonio David|||0000-0003-0238-5867
Ramírez del Amo, Pablo
Mazuelos Rojas, Alfonso
author Iglesias González, Nieves
author_facet Iglesias González, Nieves
Dorado Castaño, Antonio David|||0000-0003-0238-5867
Ramírez del Amo, Pablo
Mazuelos Rojas, Alfonso
author_role author
author2 Dorado Castaño, Antonio David|||0000-0003-0238-5867
Ramírez del Amo, Pablo
Mazuelos Rojas, Alfonso
author2_role author
author
author
dc.subject.none.fl_str_mv Copper industry and trade
PCBs
Biohydrometallurgy
Copper
Bioreactor
Solvent extraction
Electrowinning
Coure--Indústria i comerç
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines::Processament de minerals
Àrees temàtiques de la UPC::Enginyeria química::Química orgànica::Compostos orgànics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
topic Copper industry and trade
PCBs
Biohydrometallurgy
Copper
Bioreactor
Solvent extraction
Electrowinning
Coure--Indústria i comerç
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines::Processament de minerals
Àrees temàtiques de la UPC::Enginyeria química::Química orgànica::Compostos orgànics
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
description PCBs constitute a residue rich in metals, among which copper stands out due to its majority content, much higher than that found in natural deposits, so that it is a potential secondary resource. Many attempts have been made to recover copper via biohydrometallurgy because it is an environmentally friendly route, however, one of its main drawbacks is the low productivity achieved. A global process based on circularity for obtaining copper cathodes from PCBs is proposed. First, PCBs from end-of-life mobile phones are shred to sizes between 800 and 2000 µm. Copper is leached from these pieces in a continuous stirred tank reactor (CSTR) at high ferric concentration, at a moderate temperature of 60 °C reaching dissolution rate higher than 1 g/L·h and a yield of 99 %. The solution that leaves the CSTR with concentrations of up to 10 g/L of Cu is passed through a high-performance bioreactor for the regeneration of Fe(III). A biooxidation rate of 1.3 g/L·h was achieved, and no inhibition was observed. Concurrently, copper is recovered in metallic state by solvent extraction and electrowinning with recirculation streams becoming a more profitable and sustainable complete global process.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-11-20
2024
2024-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/396665
https://dx.doi.org/10.1016/j.mineng.2023.108459
url https://hdl.handle.net/2117/396665
https://dx.doi.org/10.1016/j.mineng.2023.108459
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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