Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product

Phosphorus recovery through struvite precipitation has gained interest due to the potential use of struvite as a fertiliser, with fluidised bed reactors being a popular technology for carrying out the process. Struvite precipitation requires a magnesium source and an alkaline reagent. This research...

ver descrição completa

Detalhes bibliográficos
Autores: Aguilar Pozo, Verónica-Belén, Chimenos Ribera, Josep Ma., Peña Picola, Sergi, Olaciregui-Arizmendi, K., Elduayen-Echave, B., Ayesa Iturrate, Eduardo José, Astals Garcia, Sergi
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/210206
Acesso em linha:https://hdl.handle.net/2445/210206
Access Level:acceso abierto
Palavra-chave:Digestió anaeròbia
Òxid de magnesi
Fòsfor
Anaerobic digestion
Magnesium oxide
Phosphorus
id ES_edbca0f7ebbab431715c39d054e799fa
oai_identifier_str oai:diposit.ub.edu:2445/210206
network_acronym_str ES
network_name_str España
repository_id_str
spelling Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-productAguilar Pozo, Verónica-BelénChimenos Ribera, Josep Ma.Peña Picola, SergiOlaciregui-Arizmendi, K.Elduayen-Echave, B.Ayesa Iturrate, Eduardo JoséAstals Garcia, SergiDigestió anaeròbiaÒxid de magnesiFòsforAnaerobic digestionMagnesium oxidePhosphorusPhosphorus recovery through struvite precipitation has gained interest due to the potential use of struvite as a fertiliser, with fluidised bed reactors being a popular technology for carrying out the process. Struvite precipitation requires a magnesium source and an alkaline reagent. This research uses a low-grade magnesium oxide (LG-MgO) industrial by-product with a 56 wt% of MgO as magnesium source and an alkaline reagent to lower operating costs and value-add an industrial by-product. LG-MgO is poorly soluble in water, but its solubility increases significantly when dissolved in anaerobic digestion supernatants due to its circumneutral pH and high buffer capacity. Phosphorus precipitation was carried out in a laboratory-scale fluidised bed reactor where three operating variables (i.e. P:Mg molar ratio, feed inlet position, and recirculation flow rate) were studied to determine the LG-MgO impact on precipitate struvite content. Experimental results showed a high struvite content in all precipitates, close to the values reported for pure magnesium sources. The P:Mg molar ratio influenced precipitate composition. The percentage of struvite in the precipitate were 75–82 wt%, 85–88 wt%, and 75–76 wt% for the P:Mg ratio of 1:0.5, 1:1 and 1:3, respectively. The feed inlet position (side or bottom) also had an impact on precipitate struvite content when the P:Mg molar ratio was 1:3, but not for the other molar ratios. The recirculation flow rate did not have a significant impact on precipitate struvite content.Elsevier Ltd2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/210206Articles publicats en revistes (Enginyeria Química i Química Analítica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1016/j.jece.2024.112764Journal of Environmental Chemical Engineering, 2024, vol. 12, num.3, p. 1-9https://doi.org/10.1016/j.jece.2024.112764cc-by-nc-nd (c) Aguilar Pozo, Verónica Belén, et al., 2024http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2102062026-05-27T06:46:51Z
dc.title.none.fl_str_mv Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
title Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
spellingShingle Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
Aguilar Pozo, Verónica-Belén
Digestió anaeròbia
Òxid de magnesi
Fòsfor
Anaerobic digestion
Magnesium oxide
Phosphorus
title_short Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
title_full Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
title_fullStr Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
title_full_unstemmed Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
title_sort Process performance and precipitate quality of phosphorus recovery by struvite precipitation in a fluidized bed reactor using a MgO industrial by-product
dc.creator.none.fl_str_mv Aguilar Pozo, Verónica-Belén
Chimenos Ribera, Josep Ma.
Peña Picola, Sergi
Olaciregui-Arizmendi, K.
Elduayen-Echave, B.
Ayesa Iturrate, Eduardo José
Astals Garcia, Sergi
author Aguilar Pozo, Verónica-Belén
author_facet Aguilar Pozo, Verónica-Belén
Chimenos Ribera, Josep Ma.
Peña Picola, Sergi
Olaciregui-Arizmendi, K.
Elduayen-Echave, B.
Ayesa Iturrate, Eduardo José
Astals Garcia, Sergi
author_role author
author2 Chimenos Ribera, Josep Ma.
Peña Picola, Sergi
Olaciregui-Arizmendi, K.
Elduayen-Echave, B.
Ayesa Iturrate, Eduardo José
Astals Garcia, Sergi
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Digestió anaeròbia
Òxid de magnesi
Fòsfor
Anaerobic digestion
Magnesium oxide
Phosphorus
topic Digestió anaeròbia
Òxid de magnesi
Fòsfor
Anaerobic digestion
Magnesium oxide
Phosphorus
description Phosphorus recovery through struvite precipitation has gained interest due to the potential use of struvite as a fertiliser, with fluidised bed reactors being a popular technology for carrying out the process. Struvite precipitation requires a magnesium source and an alkaline reagent. This research uses a low-grade magnesium oxide (LG-MgO) industrial by-product with a 56 wt% of MgO as magnesium source and an alkaline reagent to lower operating costs and value-add an industrial by-product. LG-MgO is poorly soluble in water, but its solubility increases significantly when dissolved in anaerobic digestion supernatants due to its circumneutral pH and high buffer capacity. Phosphorus precipitation was carried out in a laboratory-scale fluidised bed reactor where three operating variables (i.e. P:Mg molar ratio, feed inlet position, and recirculation flow rate) were studied to determine the LG-MgO impact on precipitate struvite content. Experimental results showed a high struvite content in all precipitates, close to the values reported for pure magnesium sources. The P:Mg molar ratio influenced precipitate composition. The percentage of struvite in the precipitate were 75–82 wt%, 85–88 wt%, and 75–76 wt% for the P:Mg ratio of 1:0.5, 1:1 and 1:3, respectively. The feed inlet position (side or bottom) also had an impact on precipitate struvite content when the P:Mg molar ratio was 1:3, but not for the other molar ratios. The recirculation flow rate did not have a significant impact on precipitate struvite content.
publishDate 2024
dc.date.none.fl_str_mv 2024
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/2445/210206
url https://hdl.handle.net/2445/210206
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/10.1016/j.jece.2024.112764
Journal of Environmental Chemical Engineering, 2024, vol. 12, num.3, p. 1-9
https://doi.org/10.1016/j.jece.2024.112764
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Aguilar Pozo, Verónica Belén, et al., 2024
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Aguilar Pozo, Verónica Belén, et al., 2024
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Química i Química Analítica)
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_ 1869423530834132992
score 15.300724

Registos relacionados