Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge

The quantity of sewage sludge generated daily by wastewater treatment plants represents a major environmental problem and a financial burden for plant operators. Valorization strategies focusing on reusing sewage sludge as a raw material are currently developed. Vitrification can help us reduce the...

Descripción completa

Detalles Bibliográficos
Autores: Tarragó Aymerich, Mariona, Royo, I., Martínez Manent, Salvador, Garcia Vallès, Maite, Neuville, D.R.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/176930
Acceso en línea:https://hdl.handle.net/2445/176930
Access Level:acceso abierto
Palabra clave:Basalt
Cristal·lització
Vidre
Crystallization
Glass
id ES_c2aafa803c0931fc075aa9aa79bd2f5c
oai_identifier_str oai:diposit.ub.edu:2445/176930
network_acronym_str ES
network_name_str España
repository_id_str
spelling Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludgeTarragó Aymerich, MarionaRoyo, I.Martínez Manent, SalvadorGarcia Vallès, MaiteNeuville, D.R.BasaltCristal·litzacióVidreBasaltCrystallizationGlassThe quantity of sewage sludge generated daily by wastewater treatment plants represents a major environmental problem and a financial burden for plant operators. Valorization strategies focusing on reusing sewage sludge as a raw material are currently developed. Vitrification can help us reduce the volume of waste and binds the components in the structure of chemically stable glasses and glass‐ceramics. In this study, the vitrification of sewage sludge inside a basaltic rock has been simulated by producing glasses and a glass‐ceramic from basalt enriched in calcium that lie between the stability fields of pyroxene and melilite in the system CaO‐MgO‐SiO2‐Al2O3. CaO addition causes the oxidation of the melt at above the liquidus, increases the crystallization temperature, decreases the melting temperature and improves the microhardness of the glasses Glass‐ceramic processes improves the properties of the Ca‐doped basalt glass. The microhardness of the glass (8.2 GPa) and the glass‐ceramic (8.6 GPa) and leaching tests (in the ppb range) place both the glass and the glass‐ceramics at the high end of the mechanical properties and chemical resistance of ceramic tiles for the building industry.Wiley2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/176930Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1111/ijag.15920International Journal of Applied Glass Science, 2021, Vol. 12, núm. 3, p. 367-380https://doi.org/10.1111/ijag.15920cc by-nc-nd (c) Tarragó Aymerich, Mariona et al, 2021http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1769302026-05-27T06:46:51Z
dc.title.none.fl_str_mv Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
title Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
spellingShingle Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
Tarragó Aymerich, Mariona
Basalt
Cristal·lització
Vidre
Basalt
Crystallization
Glass
title_short Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
title_full Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
title_fullStr Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
title_full_unstemmed Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
title_sort Incorporation of calcium in glasses: a key to understand the vitrification of sewage sludge
dc.creator.none.fl_str_mv Tarragó Aymerich, Mariona
Royo, I.
Martínez Manent, Salvador
Garcia Vallès, Maite
Neuville, D.R.
author Tarragó Aymerich, Mariona
author_facet Tarragó Aymerich, Mariona
Royo, I.
Martínez Manent, Salvador
Garcia Vallès, Maite
Neuville, D.R.
author_role author
author2 Royo, I.
Martínez Manent, Salvador
Garcia Vallès, Maite
Neuville, D.R.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Basalt
Cristal·lització
Vidre
Basalt
Crystallization
Glass
topic Basalt
Cristal·lització
Vidre
Basalt
Crystallization
Glass
description The quantity of sewage sludge generated daily by wastewater treatment plants represents a major environmental problem and a financial burden for plant operators. Valorization strategies focusing on reusing sewage sludge as a raw material are currently developed. Vitrification can help us reduce the volume of waste and binds the components in the structure of chemically stable glasses and glass‐ceramics. In this study, the vitrification of sewage sludge inside a basaltic rock has been simulated by producing glasses and a glass‐ceramic from basalt enriched in calcium that lie between the stability fields of pyroxene and melilite in the system CaO‐MgO‐SiO2‐Al2O3. CaO addition causes the oxidation of the melt at above the liquidus, increases the crystallization temperature, decreases the melting temperature and improves the microhardness of the glasses Glass‐ceramic processes improves the properties of the Ca‐doped basalt glass. The microhardness of the glass (8.2 GPa) and the glass‐ceramic (8.6 GPa) and leaching tests (in the ppb range) place both the glass and the glass‐ceramics at the high end of the mechanical properties and chemical resistance of ceramic tiles for the building industry.
publishDate 2021
dc.date.none.fl_str_mv 2021
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/2445/176930
url https://hdl.handle.net/2445/176930
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/10.1111/ijag.15920
International Journal of Applied Glass Science, 2021, Vol. 12, núm. 3, p. 367-380
https://doi.org/10.1111/ijag.15920
dc.rights.none.fl_str_mv cc by-nc-nd (c) Tarragó Aymerich, Mariona et al, 2021
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc by-nc-nd (c) Tarragó Aymerich, Mariona et al, 2021
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
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
_version_ 1869418707216760832
score 15.301629

Similares en LA Referencia