Geopolymers based on the valorization of municipal solid waste incineration residues

he proper management of Municipal Solid Waste (MSW) has become one of the main environmental commitments for developed countries due to the uncontrolled growth of waste caused by the consumption patterns of modern societies. Nowadays, municipal solid waste incineration (MSWI) is one of the most feas...

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Autores: Giró Paloma, Jessica, Maldonado Alameda, Alex, Formosa Mitjans, Joan, Barbieri, L., Chimenos Ribera, Josep Ma., Lancellotti, I.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/140539
Acceso en línea:https://hdl.handle.net/2445/140539
Access Level:acceso abierto
Palabra clave:Eliminació de residus
Incineració
Polímers inorgànics
Refuse and refuse disposal
Incineration
Inorganic polymers
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spelling Geopolymers based on the valorization of municipal solid waste incineration residuesGiró Paloma, JessicaMaldonado Alameda, AlexFormosa Mitjans, JoanBarbieri, L.Chimenos Ribera, Josep Ma.Lancellotti, I.Eliminació de residusIncineracióPolímers inorgànicsRefuse and refuse disposalIncinerationInorganic polymershe proper management of Municipal Solid Waste (MSW) has become one of the main environmental commitments for developed countries due to the uncontrolled growth of waste caused by the consumption patterns of modern societies. Nowadays, municipal solid waste incineration (MSWI) is one of the most feasible solutions and it is estimated to increase in Europe where the accessibility of landfill is restricted. Bottom ash (BA) is the most significant by-product from MSWI as it accounts for 85-95 % of the solid product resulting from combustion, which is classified as a non-hazardous residue that can be revalorized as a secondary aggregate in road sub-base, bulk lightweight filler in construction. In this way, revalorization of weathered BA (WBA) for the production of geopolymers may be a good alternative to common reuse as secondary aggregate material; however, the chemical process to obtain these materials involves several challenges that could disturb the stability of the material, mainly from the environmental point of view. Accordingly, it is necessary that geopolymers are able to stabilize heavy metals contained in the WBA in order to be classified as non-hazardous materials. In this regard, the SiO2/Al2O3 ratio plays an important role for the encapsulation of heavy metals and other toxic elements. The aim of this research is to formulate geopolymers starting from the 0-2 mm particle size fraction of WBA, as a unique raw material used as aluminumsilicate precursor. Likewise, leaching tests of the geopolymers formulated were performed to assess their environmental impact. The findings show that it is possible to formulate geopolymers using 100 % WBA as precursor, although more investigations are needed to sustain that geopolymer obtained can be considered as non-hazardous materials.IOP Publishing2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/140539Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1088/1757-899X/251/1/012125IOP conference series. Materials science and engineering, 2017, vol. 251, p. 012125https://doi.org/10.1088/1757-899X/251/1/012125cc-by (c) Giró Paloma, Jessica et al., 2017http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1405392026-05-27T06:46:51Z
dc.title.none.fl_str_mv Geopolymers based on the valorization of municipal solid waste incineration residues
title Geopolymers based on the valorization of municipal solid waste incineration residues
spellingShingle Geopolymers based on the valorization of municipal solid waste incineration residues
Giró Paloma, Jessica
Eliminació de residus
Incineració
Polímers inorgànics
Refuse and refuse disposal
Incineration
Inorganic polymers
title_short Geopolymers based on the valorization of municipal solid waste incineration residues
title_full Geopolymers based on the valorization of municipal solid waste incineration residues
title_fullStr Geopolymers based on the valorization of municipal solid waste incineration residues
title_full_unstemmed Geopolymers based on the valorization of municipal solid waste incineration residues
title_sort Geopolymers based on the valorization of municipal solid waste incineration residues
dc.creator.none.fl_str_mv Giró Paloma, Jessica
Maldonado Alameda, Alex
Formosa Mitjans, Joan
Barbieri, L.
Chimenos Ribera, Josep Ma.
Lancellotti, I.
author Giró Paloma, Jessica
author_facet Giró Paloma, Jessica
Maldonado Alameda, Alex
Formosa Mitjans, Joan
Barbieri, L.
Chimenos Ribera, Josep Ma.
Lancellotti, I.
author_role author
author2 Maldonado Alameda, Alex
Formosa Mitjans, Joan
Barbieri, L.
Chimenos Ribera, Josep Ma.
Lancellotti, I.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Eliminació de residus
Incineració
Polímers inorgànics
Refuse and refuse disposal
Incineration
Inorganic polymers
topic Eliminació de residus
Incineració
Polímers inorgànics
Refuse and refuse disposal
Incineration
Inorganic polymers
description he proper management of Municipal Solid Waste (MSW) has become one of the main environmental commitments for developed countries due to the uncontrolled growth of waste caused by the consumption patterns of modern societies. Nowadays, municipal solid waste incineration (MSWI) is one of the most feasible solutions and it is estimated to increase in Europe where the accessibility of landfill is restricted. Bottom ash (BA) is the most significant by-product from MSWI as it accounts for 85-95 % of the solid product resulting from combustion, which is classified as a non-hazardous residue that can be revalorized as a secondary aggregate in road sub-base, bulk lightweight filler in construction. In this way, revalorization of weathered BA (WBA) for the production of geopolymers may be a good alternative to common reuse as secondary aggregate material; however, the chemical process to obtain these materials involves several challenges that could disturb the stability of the material, mainly from the environmental point of view. Accordingly, it is necessary that geopolymers are able to stabilize heavy metals contained in the WBA in order to be classified as non-hazardous materials. In this regard, the SiO2/Al2O3 ratio plays an important role for the encapsulation of heavy metals and other toxic elements. The aim of this research is to formulate geopolymers starting from the 0-2 mm particle size fraction of WBA, as a unique raw material used as aluminumsilicate precursor. Likewise, leaching tests of the geopolymers formulated were performed to assess their environmental impact. The findings show that it is possible to formulate geopolymers using 100 % WBA as precursor, although more investigations are needed to sustain that geopolymer obtained can be considered as non-hazardous materials.
publishDate 2017
dc.date.none.fl_str_mv 2017
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://hdl.handle.net/2445/140539
url https://hdl.handle.net/2445/140539
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1088/1757-899X/251/1/012125
IOP conference series. Materials science and engineering, 2017, vol. 251, p. 012125
https://doi.org/10.1088/1757-899X/251/1/012125
dc.rights.none.fl_str_mv cc-by (c) Giró Paloma, Jessica et al., 2017
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Giró Paloma, Jessica et al., 2017
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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