A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues

Olive mill residues have been valorized by chemical modification with amines to improve their adsorption capacity and to be used as a low-cost bioadsorbent for nitrate removal. The Taguchi method was used to optimize the process. By performing a three-factor analysis with three levels, it was possib...

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Autores: Moreno Angosto, José Manuel, Obón de Castro, José María, Roca Hernández, María José, Alacid Cárceles, Mercedes, Fernández López, José Antonio
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2023
País:España
Recursos:Universidad Politécnica de Cartagena(UPCT)
Repositório:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/12911
Acesso em linha:http://hdl.handle.net/10317/12911
https://www.mdpi.com/2073-4395/13/5/1325
Access Level:Acceso aberto
Palavra-chave:Nitrate adsorption
Modified biomass
Agrifood waste
Taguchi design
Bioadsorption
Ingeniería Química
Tecnologías del Medio Ambiente
3101 Agroquímica
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spelling A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill ResiduesMoreno Angosto, José ManuelObón de Castro, José MaríaRoca Hernández, María JoséAlacid Cárceles, MercedesFernández López, José AntonioNitrate adsorptionModified biomassAgrifood wasteTaguchi designBioadsorptionIngeniería QuímicaTecnologías del Medio Ambiente3101 AgroquímicaOlive mill residues have been valorized by chemical modification with amines to improve their adsorption capacity and to be used as a low-cost bioadsorbent for nitrate removal. The Taguchi method was used to optimize the process. By performing a three-factor analysis with three levels, it was possible to significantly reduce the number of experiments to be performed and to obtain the best working conditions. The results of the Taguchi method showed that the highest adsorption capacity was 110 mg·g −1 with a functionalized biomass dose of 1 g·L −1 using an initial nitrate concentration of 500 mg·L −1 . Field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FTIR) were used to characterize the surface morphology and study the chemical changes that occurred in the biomass. For the best conditions of the Taguchi approach, the kinetic and equilibrium aspects of the adsorption process were analyzed. The adsorption isotherms obtained were successfully fitted to the Freundlich (R2 = 0.98) and Langmuir (R2 = 0.97) models. The kinetics of the process were studied, and the data obtained fit very well to the pseudo-second-order model (R2 = 0.99). The adsorption values obtained suggest that it is a bioadsorbent with great potential for nitrate retention in aqueous solutions.This research was funded by the Project 2I20SAE00081 through the Call for Public Grants to finance the strategic projects included in the Research and Innovation Strategy for Smart Specialisation-RIS3MUR Strategy by the Autonomous Community of the Region of Murcia (CARM), Spain, within the framework of the FEDER Operational Program Region of Murcia 2014–2020 under the thematic objective 1: Strengthen research, technological development and innovation by 80% and with CARMs own funds by 20%.MDPIFondo Europeo de Desarrollo Regional‏202320232023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/10317/12911https://www.mdpi.com/2073-4395/13/5/1325reponame:Repositorio Digital UPCTinstname:Universidad Politécnica de Cartagena(UPCT)Inglés2I20SAE00081info:eu-repo/semantics/openAccessoai:repositorio.upct.es:10317/129112026-05-15T06:39:02Z
dc.title.none.fl_str_mv A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
title A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
spellingShingle A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
Moreno Angosto, José Manuel
Nitrate adsorption
Modified biomass
Agrifood waste
Taguchi design
Bioadsorption
Ingeniería Química
Tecnologías del Medio Ambiente
3101 Agroquímica
title_short A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
title_full A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
title_fullStr A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
title_full_unstemmed A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
title_sort A Promising, Highly Effective Nitrate Sorbent Derived from Solid Olive Mill Residues
dc.creator.none.fl_str_mv Moreno Angosto, José Manuel
Obón de Castro, José María
Roca Hernández, María José
Alacid Cárceles, Mercedes
Fernández López, José Antonio
author Moreno Angosto, José Manuel
author_facet Moreno Angosto, José Manuel
Obón de Castro, José María
Roca Hernández, María José
Alacid Cárceles, Mercedes
Fernández López, José Antonio
author_role author
author2 Obón de Castro, José María
Roca Hernández, María José
Alacid Cárceles, Mercedes
Fernández López, José Antonio
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Fondo Europeo de Desarrollo Regional‏
dc.subject.none.fl_str_mv Nitrate adsorption
Modified biomass
Agrifood waste
Taguchi design
Bioadsorption
Ingeniería Química
Tecnologías del Medio Ambiente
3101 Agroquímica
topic Nitrate adsorption
Modified biomass
Agrifood waste
Taguchi design
Bioadsorption
Ingeniería Química
Tecnologías del Medio Ambiente
3101 Agroquímica
description Olive mill residues have been valorized by chemical modification with amines to improve their adsorption capacity and to be used as a low-cost bioadsorbent for nitrate removal. The Taguchi method was used to optimize the process. By performing a three-factor analysis with three levels, it was possible to significantly reduce the number of experiments to be performed and to obtain the best working conditions. The results of the Taguchi method showed that the highest adsorption capacity was 110 mg·g −1 with a functionalized biomass dose of 1 g·L −1 using an initial nitrate concentration of 500 mg·L −1 . Field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FTIR) were used to characterize the surface morphology and study the chemical changes that occurred in the biomass. For the best conditions of the Taguchi approach, the kinetic and equilibrium aspects of the adsorption process were analyzed. The adsorption isotherms obtained were successfully fitted to the Freundlich (R2 = 0.98) and Langmuir (R2 = 0.97) models. The kinetics of the process were studied, and the data obtained fit very well to the pseudo-second-order model (R2 = 0.99). The adsorption values obtained suggest that it is a bioadsorbent with great potential for nitrate retention in aqueous solutions.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
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 http://hdl.handle.net/10317/12911
https://www.mdpi.com/2073-4395/13/5/1325
url http://hdl.handle.net/10317/12911
https://www.mdpi.com/2073-4395/13/5/1325
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv 2I20SAE00081
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositorio Digital UPCT
instname:Universidad Politécnica de Cartagena(UPCT)
instname_str Universidad Politécnica de Cartagena(UPCT)
reponame_str Repositorio Digital UPCT
collection Repositorio Digital UPCT
repository.name.fl_str_mv
repository.mail.fl_str_mv
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