Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery

Hydrothermal carbonization allows material valorization and energy recovery from wet biomass waste. In this study, the hydrothermal treatment of dewatered waste-activated sludge (DWAS) was evaluated at several temperatures (170–230 °C) and reaction times (5–60 min) in an acid-free medium or in media...

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Detalles Bibliográficos
Autores: Sarrión Pérez, Andrés, Rubia Romero, María de los Ángeles de la, Coronella, Charles, Fernández Mohedano, Ángel, Díaz Nieto, Elena
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/703407
Acceso en línea:http://hdl.handle.net/10486/703407
https://dx.doi.org/10.1016/j.scitotenv.2022.156494
Access Level:acceso abierto
Palabra clave:Biofuel
Biomass treatment
Hydrothermal carbonization
Nutrients and energy recovery
Waste-activated sludge
Química
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spelling Acid-mediated hydrothermal treatment of sewage sludge for nutrient recoverySarrión Pérez, AndrésRubia Romero, María de los Ángeles de laCoronella, CharlesFernández Mohedano, ÁngelDíaz Nieto, ElenaBiofuelBiomass treatmentHydrothermal carbonizationNutrients and energy recoveryWaste-activated sludgeQuímicaHydrothermal carbonization allows material valorization and energy recovery from wet biomass waste. In this study, the hydrothermal treatment of dewatered waste-activated sludge (DWAS) was evaluated at several temperatures (170–230 °C) and reaction times (5–60 min) in an acid-free medium or in media such as citric acid or HCl (0.1–0.5 mol/L). Compared with the DWAS, an increase in the fixed carbon content (>45 wt%) and heating value (18.9–22.9 MJ/kg) was observed in the hydrochar; however, their ash content remained high, which is the main drawback hindering their direct use as a biofuel. The addition of acids during hydrothermal treatment favored the solubilization of N and P in the process water, which required strict control of the reaction time to avoid the recrystallization of P in the hydrochar. Under optimum operating conditions (230 °C, 15 min, 0.5 mol/L HCl), 94 % of P (as of PO4) and almost 100 % of N (14 % as NH4-N) present in the feedstock were concentrated in the process waterThe authors greatly appreciate funding from the Spanish MICINN (Project PID2019-108445RB-I00; PDC2021-120755-I00), Madrid Regional Government (Project S2018/EMT-4344), and US National Science Foundation (NSF #CBET-1856009). A. Sarrion wishes to thank the Spanish MICINN and ESF for a research grant (BES-2017-081515)ElsevierDepartamento de Ingeniería QuímicaFacultad de CienciasUAM. Departamento de Ingeniería Química20222022-06-03research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/703407https://dx.doi.org/10.1016/j.scitotenv.2022.156494reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7034072026-06-23T12:46:27Z
dc.title.none.fl_str_mv Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
title Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
spellingShingle Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
Sarrión Pérez, Andrés
Biofuel
Biomass treatment
Hydrothermal carbonization
Nutrients and energy recovery
Waste-activated sludge
Química
title_short Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
title_full Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
title_fullStr Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
title_full_unstemmed Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
title_sort Acid-mediated hydrothermal treatment of sewage sludge for nutrient recovery
dc.creator.none.fl_str_mv Sarrión Pérez, Andrés
Rubia Romero, María de los Ángeles de la
Coronella, Charles
Fernández Mohedano, Ángel
Díaz Nieto, Elena
author Sarrión Pérez, Andrés
author_facet Sarrión Pérez, Andrés
Rubia Romero, María de los Ángeles de la
Coronella, Charles
Fernández Mohedano, Ángel
Díaz Nieto, Elena
author_role author
author2 Rubia Romero, María de los Ángeles de la
Coronella, Charles
Fernández Mohedano, Ángel
Díaz Nieto, Elena
author2_role author
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 Biofuel
Biomass treatment
Hydrothermal carbonization
Nutrients and energy recovery
Waste-activated sludge
Química
topic Biofuel
Biomass treatment
Hydrothermal carbonization
Nutrients and energy recovery
Waste-activated sludge
Química
description Hydrothermal carbonization allows material valorization and energy recovery from wet biomass waste. In this study, the hydrothermal treatment of dewatered waste-activated sludge (DWAS) was evaluated at several temperatures (170–230 °C) and reaction times (5–60 min) in an acid-free medium or in media such as citric acid or HCl (0.1–0.5 mol/L). Compared with the DWAS, an increase in the fixed carbon content (>45 wt%) and heating value (18.9–22.9 MJ/kg) was observed in the hydrochar; however, their ash content remained high, which is the main drawback hindering their direct use as a biofuel. The addition of acids during hydrothermal treatment favored the solubilization of N and P in the process water, which required strict control of the reaction time to avoid the recrystallization of P in the hydrochar. Under optimum operating conditions (230 °C, 15 min, 0.5 mol/L HCl), 94 % of P (as of PO4) and almost 100 % of N (14 % as NH4-N) present in the feedstock were concentrated in the process water
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-06-03
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/10486/703407
https://dx.doi.org/10.1016/j.scitotenv.2022.156494
url http://hdl.handle.net/10486/703407
https://dx.doi.org/10.1016/j.scitotenv.2022.156494
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
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
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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