Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor

In this work, dewatered waste activated sludge (DWAS) was subjected to hydrothermal carbonization to obtain hydrochars that can be used as renewable solid fuels or activated carbon precursors. A central composite rotatable design was used to analyze the effect of temperature (140–220 ◦C) and reactio...

Descripción completa

Detalles Bibliográficos
Autores: Villamil, J. A., Díaz Nieto, Elena, Rubia Romero, María de los Ángeles de la, Fernández Mohedano, Ángel
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/720779
Acceso en línea:http://hdl.handle.net/10486/720779
https://dx.doi.org/10.3390/molecules25153534
Access Level:acceso abierto
Palabra clave:Activated carbon
adsorption
chemical activation
hydrochar
hydrothermal carbonization
low-cost adsorbent
physical activation
Química
id ES_99c5276f6e01ac1c288c4be5fb3e2f86
oai_identifier_str oai:repositorio.uam.es:10486/720779
network_acronym_str ES
network_name_str España
repository_id_str
spelling Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursorVillamil, J. A.Díaz Nieto, ElenaRubia Romero, María de los Ángeles de laFernández Mohedano, ÁngelActivated carbonadsorptionchemical activationhydrocharhydrothermal carbonizationlow-cost adsorbentphysical activationQuímicaIn this work, dewatered waste activated sludge (DWAS) was subjected to hydrothermal carbonization to obtain hydrochars that can be used as renewable solid fuels or activated carbon precursors. A central composite rotatable design was used to analyze the effect of temperature (140–220 ◦C) and reaction time (0.5–4 h) on the physicochemical properties of the products. The hydrochars exhibited increased heating values (up to 22.3 MJ/kg) and their air-activation provided carbons with a low BET area (100 m2/g). By contrast, chemical activation with K2CO3, KOH, FeCl3 and ZnCl2 gave carbons with a well-developed porous network (BET areas of 410–1030 m2/g) and substantial contents in mesopores (0.079–0.271 cm3/g) and micropores (0.136–0.398 cm3/g). The chemically activated carbons had a fairly good potential to adsorb emerging pollutants such as sulfamethoxazole, antipyrine and desipramine from the liquid phase. This was especially the case with KOH-activated hydrochars, which exhibited a maximum adsorption capacity of 412, 198 and 146 mg/g, respectively, for the previous pollutantsThis research was funded by Spain’s MINECO (Project PID2019-108445RB-I00) and the Madrid Regional Government (BIOTRES Project S2018/EMT-4344). M. A. de la Rubia acknowledges additional funding by the Spanish Ministry of Economy and Competitiveness (Project RYC-2013-12549)MDPIDepartamento de Ingeniería QuímicaFacultad de CienciasUAM. Departamento de Ingeniería Química20202020-08-01research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/720779https://dx.doi.org/10.3390/molecules25153534reponame: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:10486/7207792026-06-23T12:46:27Z
dc.title.none.fl_str_mv Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
title Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
spellingShingle Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
Villamil, J. A.
Activated carbon
adsorption
chemical activation
hydrochar
hydrothermal carbonization
low-cost adsorbent
physical activation
Química
title_short Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
title_full Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
title_fullStr Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
title_full_unstemmed Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
title_sort Potential use of waste activated sludge hydrothermally treated as a renewable fuel or activated carbon precursor
dc.creator.none.fl_str_mv Villamil, J. A.
Díaz Nieto, Elena
Rubia Romero, María de los Ángeles de la
Fernández Mohedano, Ángel
author Villamil, J. A.
author_facet Villamil, J. A.
Díaz Nieto, Elena
Rubia Romero, María de los Ángeles de la
Fernández Mohedano, Ángel
author_role author
author2 Díaz Nieto, Elena
Rubia Romero, María de los Ángeles de la
Fernández Mohedano, Ángel
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Química
Facultad de Ciencias
UAM. Departamento de Ingeniería Química
dc.subject.none.fl_str_mv Activated carbon
adsorption
chemical activation
hydrochar
hydrothermal carbonization
low-cost adsorbent
physical activation
Química
topic Activated carbon
adsorption
chemical activation
hydrochar
hydrothermal carbonization
low-cost adsorbent
physical activation
Química
description In this work, dewatered waste activated sludge (DWAS) was subjected to hydrothermal carbonization to obtain hydrochars that can be used as renewable solid fuels or activated carbon precursors. A central composite rotatable design was used to analyze the effect of temperature (140–220 ◦C) and reaction time (0.5–4 h) on the physicochemical properties of the products. The hydrochars exhibited increased heating values (up to 22.3 MJ/kg) and their air-activation provided carbons with a low BET area (100 m2/g). By contrast, chemical activation with K2CO3, KOH, FeCl3 and ZnCl2 gave carbons with a well-developed porous network (BET areas of 410–1030 m2/g) and substantial contents in mesopores (0.079–0.271 cm3/g) and micropores (0.136–0.398 cm3/g). The chemically activated carbons had a fairly good potential to adsorb emerging pollutants such as sulfamethoxazole, antipyrine and desipramine from the liquid phase. This was especially the case with KOH-activated hydrochars, which exhibited a maximum adsorption capacity of 412, 198 and 146 mg/g, respectively, for the previous pollutants
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-08-01
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/10486/720779
https://dx.doi.org/10.3390/molecules25153534
url http://hdl.handle.net/10486/720779
https://dx.doi.org/10.3390/molecules25153534
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 MDPI
publisher.none.fl_str_mv 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
_version_ 1869414316161105920
score 15,81155

Similares en LA Referencia