Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter

Mixed plastic fraction (MPF) from marine litter was investigated as a pore-forming agent in formulations with kaolin and a rejected Mg-clay (rich in smectite and sepiolite) to obtain innovative zeolitic lightweight aggregates. Round granules of ~10 mm in diameter were shaped and fired at 600 ºC (mix...

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Autores: Moreno Maroto, José Manuel, Govea, Julia M., Poza, Pablo, Ruiz García, Ana Isabel, Regadío García, Mercedes, Cuevas Rodríguez, Jaime Fernando, Fernández Martín, Raúl, Alonso-Azcárate, Jacinto
Tipo de documento: artigo
Data de publicação:2024
País:España
Recursos:Universidad Autónoma de Madrid
Repositório:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglês
OAI Identifier:oai:repositorio.uam.es:10486/715788
Acesso em linha:http://hdl.handle.net/10486/715788
https://dx.doi.org/10.3390/app14177674
Access Level:Acceso aberto
Palavra-chave:Hydrothermal treatment
zeolitic construction materials
lightweight aggregates
marine plastic litter
clay
Geología
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spelling Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic LitterMoreno Maroto, José ManuelGovea, Julia M.Poza, PabloRuiz García, Ana IsabelRegadío García, MercedesCuevas Rodríguez, Jaime FernandoFernández Martín, RaúlAlonso-Azcárate, JacintoHydrothermal treatmentzeolitic construction materialslightweight aggregatesmarine plastic litterclayGeologíaMixed plastic fraction (MPF) from marine litter was investigated as a pore-forming agent in formulations with kaolin and a rejected Mg-clay (rich in smectite and sepiolite) to obtain innovative zeolitic lightweight aggregates. Round granules of ~10 mm in diameter were shaped and fired at 600 ºC (mixtures of kaolin with 0, 5, 10, and 20 wt.% MPF) and 900 ºC (mixtures of rejected Mgclay: kaolin (1:0, 2:1, 1:2; 0:1) with 10 wt.% MPF). The fired specimens were hydrothermally treated in a 3M NaOH solution at 150 ºC for 24 h. Mixtures containing 20 wt.% MPF led to specimen crumbling, while those with 5 and, especially, 10 wt.% MPF favored a significant crystallization of zeolites and feldspathoids (50–80%), highlighting cancrinite, nepheline, zeolite A, and analcime. The resulting materials were lightweight (1.5–1.8 g/cm3) and their crushing strength increased substantially with the hydrothermal treatment, from 0.04–0.5 MPa to 2.3–5.5 MPa after zeolitization. High content of rejected Mg-clay in the mixture (>67%) negatively affected the zeolitization and the properties of the final aggregate, while 33 wt.% was adequate, increasing slightly the crushing strength (3.4 vs. 3.1 MPa). These findings contribute to plastic waste circularity and sustainability/technological progress in materials productionThis research was conducted as a part the project “Aplicación de residuos plásticos marinos como componentes tecnológicos en la fabricación de cerámicas zeolitizadas (OZEONIC)” framed within the 6th Edition of the Premios Mares Circulares (Circular Seas Awards) in its Research Projects 2023 modality, funded by Asociación Chelonia and promoted by Coca-Cola Europacific PartnersMultidisciplinary Digital Publishing Institute (Mdpi)Departamento de Geología y GeoquímicaFacultad de Ciencias20242024-08-30research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/715788https://dx.doi.org/10.3390/app14177674reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7157882026-06-23T12:46:27Z
dc.title.none.fl_str_mv Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
title Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
spellingShingle Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
Moreno Maroto, José Manuel
Hydrothermal treatment
zeolitic construction materials
lightweight aggregates
marine plastic litter
clay
Geología
title_short Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
title_full Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
title_fullStr Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
title_full_unstemmed Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
title_sort Hydrothermal Manufacture of Zeolitic Lightweight Aggregates from Clay and Marine Plastic Litter
dc.creator.none.fl_str_mv Moreno Maroto, José Manuel
Govea, Julia M.
Poza, Pablo
Ruiz García, Ana Isabel
Regadío García, Mercedes
Cuevas Rodríguez, Jaime Fernando
Fernández Martín, Raúl
Alonso-Azcárate, Jacinto
author Moreno Maroto, José Manuel
author_facet Moreno Maroto, José Manuel
Govea, Julia M.
Poza, Pablo
Ruiz García, Ana Isabel
Regadío García, Mercedes
Cuevas Rodríguez, Jaime Fernando
Fernández Martín, Raúl
Alonso-Azcárate, Jacinto
author_role author
author2 Govea, Julia M.
Poza, Pablo
Ruiz García, Ana Isabel
Regadío García, Mercedes
Cuevas Rodríguez, Jaime Fernando
Fernández Martín, Raúl
Alonso-Azcárate, Jacinto
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Geología y Geoquímica
Facultad de Ciencias
dc.subject.none.fl_str_mv Hydrothermal treatment
zeolitic construction materials
lightweight aggregates
marine plastic litter
clay
Geología
topic Hydrothermal treatment
zeolitic construction materials
lightweight aggregates
marine plastic litter
clay
Geología
description Mixed plastic fraction (MPF) from marine litter was investigated as a pore-forming agent in formulations with kaolin and a rejected Mg-clay (rich in smectite and sepiolite) to obtain innovative zeolitic lightweight aggregates. Round granules of ~10 mm in diameter were shaped and fired at 600 ºC (mixtures of kaolin with 0, 5, 10, and 20 wt.% MPF) and 900 ºC (mixtures of rejected Mgclay: kaolin (1:0, 2:1, 1:2; 0:1) with 10 wt.% MPF). The fired specimens were hydrothermally treated in a 3M NaOH solution at 150 ºC for 24 h. Mixtures containing 20 wt.% MPF led to specimen crumbling, while those with 5 and, especially, 10 wt.% MPF favored a significant crystallization of zeolites and feldspathoids (50–80%), highlighting cancrinite, nepheline, zeolite A, and analcime. The resulting materials were lightweight (1.5–1.8 g/cm3) and their crushing strength increased substantially with the hydrothermal treatment, from 0.04–0.5 MPa to 2.3–5.5 MPa after zeolitization. High content of rejected Mg-clay in the mixture (>67%) negatively affected the zeolitization and the properties of the final aggregate, while 33 wt.% was adequate, increasing slightly the crushing strength (3.4 vs. 3.1 MPa). These findings contribute to plastic waste circularity and sustainability/technological progress in materials production
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-08-30
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/715788
https://dx.doi.org/10.3390/app14177674
url http://hdl.handle.net/10486/715788
https://dx.doi.org/10.3390/app14177674
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 4.0 International
http://creativecommons.org/licenses/by/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 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (Mdpi)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (Mdpi)
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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