Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater

This study aimed to investigate the recovery of agricultural biostimulants and biogas from microalgae treating wastewater, in the framework of a circular bioeconomy. To this end, municipal wastewater was treated in demonstrative raceway ponds, and microalgal biomass (Scenedesmus sp.) was then harves...

Descripción completa

Detalles Bibliográficos
Autores: Ruales, Evelyn, Gómez-Serrano, Cintia, Morillas-España, Ainoa, González-López, Cynthia, Escolà Casas, Mònica, Matamoros, Víctor, Garfí, Marianna, Ferrer, Ivet
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/365544
Acceso en línea:http://hdl.handle.net/10261/365544
https://api.elsevier.com/content/abstract/scopus_id/85199682276
Access Level:acceso abierto
Palabra clave:Organic micropollutants
Bioenergy
Biogas
Biorefinery
Biostimulant
Microalgae
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Ensure availability and sustainable management of water and sanitation for all
id ES_7d2fae6a1e5a197f566b752f5bbcf07c
oai_identifier_str oai:digital.csic.es:10261/365544
network_acronym_str ES
network_name_str España
repository_id_str
spelling Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewaterRuales, EvelynGómez-Serrano, CintiaMorillas-España, AinoaGonzález-López, CynthiaEscolà Casas, MònicaMatamoros, VíctorGarfí, MariannaFerrer, IvetOrganic micropollutantsBioenergyBiogasBiorefineryBiostimulantMicroalgaehttp://metadata.un.org/sdg/6http://metadata.un.org/sdg/3Ensure healthy lives and promote well-being for all at all agesEnsure availability and sustainable management of water and sanitation for allThis study aimed to investigate the recovery of agricultural biostimulants and biogas from microalgae treating wastewater, in the framework of a circular bioeconomy. To this end, municipal wastewater was treated in demonstrative raceway ponds, and microalgal biomass (Scenedesmus sp.) was then harvested and downstream processed to recover biostimulants and biogas in a biorefinery approach. The effect of microalgal biostimulants on plants was evaluated by means of bioassays, while the biogas produced was quantified in biochemical methane potential (BMP) tests. Furthermore, the fate of contaminants of emerging concern (CECs) over the process was also assessed. Bioassays confirmed the biostimulant effect of microalgae, which showed gibberellin-, auxin- and cytokinin-like activity in watercress seed germination, mung bean rooting, and wheat leaf chlorophyll retention. In addition, the downstream process applied to raw biomass acted as a pre-treatment to enhance anaerobic digestion performance. After biostimulant extraction, the residual biomass represented 91% of the methane yield from the raw biomass (276 mLCH4·g-1VS). The kinetic profile of the residual biomass was 43% higher than that of the unprocessed biomass. Co-digestion with primary sludge further increased biogas production by 24%. Finally, the concentration of CECs in wastewater was reduced by more than 80%, and only 6 out of 22 CECs analyzed were present in the biostimulant obtained. Most importantly, the concentration of those contaminants was lower than in biosolids that are commonly used in agriculture, ensuring environmental safety.This research was funded by the AL4BIO project “RTI2018-099495-B-C21 and RTI2018-099495-A-C22”, and Cyan2Bio project “PID2021-126564OB-C31 and PID2021-126564OB-C32” (MCIU/AEI/FEDER, EU). E. Ruales acknowledges her PhD scholarship from AGAUR – Generalitat de Catalunya (FI SDUR-2020-00592).Peer reviewedElsevier0000-0003-2540-3255Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/365544https://api.elsevier.com/content/abstract/scopus_id/85199682276reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésJournal of environmental managementhttps://doi.org/10.1016/j.jenvman.2024.121950Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3655442026-05-22T06:33:51Z
dc.title.none.fl_str_mv Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
title Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
spellingShingle Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
Ruales, Evelyn
Organic micropollutants
Bioenergy
Biogas
Biorefinery
Biostimulant
Microalgae
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Ensure availability and sustainable management of water and sanitation for all
title_short Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
title_full Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
title_fullStr Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
title_full_unstemmed Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
title_sort Resource recovery and contaminants of emerging concern mitigation by microalgae treating wastewater
dc.creator.none.fl_str_mv Ruales, Evelyn
Gómez-Serrano, Cintia
Morillas-España, Ainoa
González-López, Cynthia
Escolà Casas, Mònica
Matamoros, Víctor
Garfí, Marianna
Ferrer, Ivet
author Ruales, Evelyn
author_facet Ruales, Evelyn
Gómez-Serrano, Cintia
Morillas-España, Ainoa
González-López, Cynthia
Escolà Casas, Mònica
Matamoros, Víctor
Garfí, Marianna
Ferrer, Ivet
author_role author
author2 Gómez-Serrano, Cintia
Morillas-España, Ainoa
González-López, Cynthia
Escolà Casas, Mònica
Matamoros, Víctor
Garfí, Marianna
Ferrer, Ivet
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv 0000-0003-2540-3255
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Organic micropollutants
Bioenergy
Biogas
Biorefinery
Biostimulant
Microalgae
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Ensure availability and sustainable management of water and sanitation for all
topic Organic micropollutants
Bioenergy
Biogas
Biorefinery
Biostimulant
Microalgae
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
Ensure availability and sustainable management of water and sanitation for all
description This study aimed to investigate the recovery of agricultural biostimulants and biogas from microalgae treating wastewater, in the framework of a circular bioeconomy. To this end, municipal wastewater was treated in demonstrative raceway ponds, and microalgal biomass (Scenedesmus sp.) was then harvested and downstream processed to recover biostimulants and biogas in a biorefinery approach. The effect of microalgal biostimulants on plants was evaluated by means of bioassays, while the biogas produced was quantified in biochemical methane potential (BMP) tests. Furthermore, the fate of contaminants of emerging concern (CECs) over the process was also assessed. Bioassays confirmed the biostimulant effect of microalgae, which showed gibberellin-, auxin- and cytokinin-like activity in watercress seed germination, mung bean rooting, and wheat leaf chlorophyll retention. In addition, the downstream process applied to raw biomass acted as a pre-treatment to enhance anaerobic digestion performance. After biostimulant extraction, the residual biomass represented 91% of the methane yield from the raw biomass (276 mLCH4·g-1VS). The kinetic profile of the residual biomass was 43% higher than that of the unprocessed biomass. Co-digestion with primary sludge further increased biogas production by 24%. Finally, the concentration of CECs in wastewater was reduced by more than 80%, and only 6 out of 22 CECs analyzed were present in the biostimulant obtained. Most importantly, the concentration of those contaminants was lower than in biosolids that are commonly used in agriculture, ensuring environmental safety.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/365544
https://api.elsevier.com/content/abstract/scopus_id/85199682276
url http://hdl.handle.net/10261/365544
https://api.elsevier.com/content/abstract/scopus_id/85199682276
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of environmental management
https://doi.org/10.1016/j.jenvman.2024.121950
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411645141286912
score 15,81155

Similares en LA Referencia