Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil

Zero valent iron nanoparticles (nZVI) attract interest given their effectiveness in soil remediation. However, little attention has been given to their impacts on plants. Likewise, although fertilizers are commonly used to enhance phytoremediation, their effects on As mobilization, resulting in pote...

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Autores: Sánchez, S., Baragaño, Diego, Rodríguez Gallego, Jose Luis, López-Antón, María Antonia, Forján, Rubén, González Díaz, María Aida|||0000-0002-3487-2806
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universidad de Oviedo (UNIOVI)
Repositorio:RUO. Repositorio Institucional de la Universidad de Oviedo
Idioma:inglés
OAI Identifier:oai:digibuo.uniovi.es:10651/76303
Acesso em linha:https://hdl.handle.net/10651/76303
https://dx.doi.org/10.1016/j.jhazmat.2022.128748
Access Level:acceso abierto
Palavra-chave:Arsenic, Mercury, Phytoremediation, Nanoremediation, Zero valent iron
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spelling Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soilSánchez, S.Baragaño, DiegoRodríguez Gallego, Jose LuisLópez-Antón, María AntoniaForján, RubénGonzález Díaz, María Aida|||0000-0002-3487-2806Arsenic, Mercury, Phytoremediation, Nanoremediation, Zero valent ironZero valent iron nanoparticles (nZVI) attract interest given their effectiveness in soil remediation. However, little attention has been given to their impacts on plants. Likewise, although fertilizers are commonly used to enhance phytoremediation, their effects on As mobilization, resulting in potential toxic effects, require further study. In this context, we examined the impact of As and Hg accumulation on the antioxidative system of Medicago sativa grown in a soil amended with organic fertilizer and/or nZVI. The experiment consisted of 60 pots. Plants were pre-grown and transferred to pots, which were withdrawn along time for monitoring purposes. As and Hg were monitored in the soil-plant system, and parameters related to oxidative stress, photosynthetic pigments, and nonprotein thiol compounds (NPTs) were measured. In general, the application of nZVI immobilized As in soil and increased Hg accumulation in the plant, although it surprisingly decreased oxidative stress. Plants in nZVItreated soil also showed an increase in NPT content in roots. In contrast, the application of the fertilizer mobilized As, thereby improving bioaccumulation factors. However, when combining fertilizer with nZVI, the As accumulation is mitigated. This observation reveals that simultaneous amendments are a promising approach for soil stabilization and the phytomanagement of As/Hg-polluted soils.This work was supported by the Ministerio de Economía y Competitividad (MINECO, Spain) under the project NANOCAREM (AEI/ Spain, FEDER/EU, MCI-20-PID2019-106939GB-I00), and it was also partially financed by LIFE16ENV/ES/000481 (SUBproducts4LIFE). Diego Baraga˜no would like to thank the European Union-NextGenerationEU, Ministerio de Universidades, and Plan de Recuperaci´on, Transformaci´on y Resiliencia, through a call of the Universidad de Oviedo for the Postdoctoral grant (Ref. MU-21-UP2021-030 32892642).Elsevier20222022-03-23journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articlehttps://hdl.handle.net/10651/76303https://dx.doi.org/10.1016/j.jhazmat.2022.128748reponame:RUO. Repositorio Institucional de la Universidad de Oviedoinstname:Universidad de Oviedo (UNIOVI)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:digibuo.uniovi.es:10651/763032026-06-07T06:38:51Z
dc.title.none.fl_str_mv Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
title Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
spellingShingle Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
Sánchez, S.
Arsenic, Mercury, Phytoremediation, Nanoremediation, Zero valent iron
title_short Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
title_full Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
title_fullStr Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
title_full_unstemmed Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
title_sort Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil
dc.creator.none.fl_str_mv Sánchez, S.
Baragaño, Diego
Rodríguez Gallego, Jose Luis
López-Antón, María Antonia
Forján, Rubén
González Díaz, María Aida|||0000-0002-3487-2806
author Sánchez, S.
author_facet Sánchez, S.
Baragaño, Diego
Rodríguez Gallego, Jose Luis
López-Antón, María Antonia
Forján, Rubén
González Díaz, María Aida|||0000-0002-3487-2806
author_role author
author2 Baragaño, Diego
Rodríguez Gallego, Jose Luis
López-Antón, María Antonia
Forján, Rubén
González Díaz, María Aida|||0000-0002-3487-2806
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Arsenic, Mercury, Phytoremediation, Nanoremediation, Zero valent iron
topic Arsenic, Mercury, Phytoremediation, Nanoremediation, Zero valent iron
description Zero valent iron nanoparticles (nZVI) attract interest given their effectiveness in soil remediation. However, little attention has been given to their impacts on plants. Likewise, although fertilizers are commonly used to enhance phytoremediation, their effects on As mobilization, resulting in potential toxic effects, require further study. In this context, we examined the impact of As and Hg accumulation on the antioxidative system of Medicago sativa grown in a soil amended with organic fertilizer and/or nZVI. The experiment consisted of 60 pots. Plants were pre-grown and transferred to pots, which were withdrawn along time for monitoring purposes. As and Hg were monitored in the soil-plant system, and parameters related to oxidative stress, photosynthetic pigments, and nonprotein thiol compounds (NPTs) were measured. In general, the application of nZVI immobilized As in soil and increased Hg accumulation in the plant, although it surprisingly decreased oxidative stress. Plants in nZVItreated soil also showed an increase in NPT content in roots. In contrast, the application of the fertilizer mobilized As, thereby improving bioaccumulation factors. However, when combining fertilizer with nZVI, the As accumulation is mitigated. This observation reveals that simultaneous amendments are a promising approach for soil stabilization and the phytomanagement of As/Hg-polluted soils.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-03-23
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
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 https://hdl.handle.net/10651/76303
https://dx.doi.org/10.1016/j.jhazmat.2022.128748
url https://hdl.handle.net/10651/76303
https://dx.doi.org/10.1016/j.jhazmat.2022.128748
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-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/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-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
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:RUO. Repositorio Institucional de la Universidad de Oviedo
instname:Universidad de Oviedo (UNIOVI)
instname_str Universidad de Oviedo (UNIOVI)
reponame_str RUO. Repositorio Institucional de la Universidad de Oviedo
collection RUO. Repositorio Institucional de la Universidad de Oviedo
repository.name.fl_str_mv
repository.mail.fl_str_mv
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