Application of natural organic residues in the remediation of metals from e-waste
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.eti.2022.102452 http://hdl.handle.net/11449/230587 |
Resumo: | Contaminants, such as potentially toxic metals from e-waste, have been affecting soil, water and ecosystems throughout the world. Thus, the search for low cost natural substances, able to complex such metals, is a matter of both environmental and economic interest. Humic substances (HS) are the main natural organic complexing agents in ecosystems, and their alkaline extraction leads to a poorly soluble residue, which is often discarded, in spite of its great potential for chelating potentially toxic metals. Since both the structure and complexing capacity of HS might be significantly affected by the way of extraction, this study comparatively evaluated the implications of exhaustive and non-exhaustive extractions on physical–chemical and structural properties of different natural organic residues (NOR) obtained. Furthermore, adsorption studies were carried out in order to compare the influence of different extractions on the resulting NOR capacities to retain copper ions. The milder extractions, involving non-exhaustive procedures, led to a NOR with better copper adsorption, which was then selected to test the retention of copper from an e-waste leachate. Results evidenced the potential use of NOR for copper removal (340 μg Cu2+ g−1 of NOR), as well as other potentially toxic metals, such as iron, manganese and chromium, thus showing a promising application of this material in the environmental remediation of soils and waters. |
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Application of natural organic residues in the remediation of metals from e-wastee-wasteHumic substancesPotentially toxic metalsContaminants, such as potentially toxic metals from e-waste, have been affecting soil, water and ecosystems throughout the world. Thus, the search for low cost natural substances, able to complex such metals, is a matter of both environmental and economic interest. Humic substances (HS) are the main natural organic complexing agents in ecosystems, and their alkaline extraction leads to a poorly soluble residue, which is often discarded, in spite of its great potential for chelating potentially toxic metals. Since both the structure and complexing capacity of HS might be significantly affected by the way of extraction, this study comparatively evaluated the implications of exhaustive and non-exhaustive extractions on physical–chemical and structural properties of different natural organic residues (NOR) obtained. Furthermore, adsorption studies were carried out in order to compare the influence of different extractions on the resulting NOR capacities to retain copper ions. The milder extractions, involving non-exhaustive procedures, led to a NOR with better copper adsorption, which was then selected to test the retention of copper from an e-waste leachate. Results evidenced the potential use of NOR for copper removal (340 μg Cu2+ g−1 of NOR), as well as other potentially toxic metals, such as iron, manganese and chromium, thus showing a promising application of this material in the environmental remediation of soils and waters.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Federal University of São Carlos (UFSCar) Postgraduate Program in Biotechnology and Environmental Monitoring, Rodovia João Leme dos Santos, SP-264, km 110Federal University of Alagoas (UFAL) Postgraduate Program in Chemistry and Biotechnology, Av. Manoel Severino Barbosa, s/n, ArapiracaFederal University of São Carlos (UFSCar) Department of Environmental Sciences, Rodovia João Leme dos Santos, SP-264, km 110, SorocabaSão PauloFederal University of São Carlos (UFSCar) Department of Physics Chemistry and Mathematics, Rodovia João Leme dos Santos, SP-264, km 110São Paulo State University (UNESP), Rua Geraldo Alckmin, 519Itapeva, São PauloFCLAr, Rodovia Araraquara-Jaú, km 1São Paulo State University (UNESP), Rua Geraldo Alckmin, 519Itapeva, São PauloCAPES: 11/2014CNPq: 309713/2015-3Universidade Federal de São Carlos (UFSCar)Postgraduate Program in Chemistry and BiotechnologyUniversidade Estadual Paulista (UNESP)FCLArRosa, Luana Maria TavaresBotero, Wander Gustavodo Carmo, Janaina BragaGabriel, Gabriele V.M.Waldman, Walter RuggeriCavagis, Alexandre D.M.Goveia, Danielle [UNESP]de Oliveira, Luciana Camargo2022-04-29T08:40:52Z2022-04-29T08:40:52Z2022-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.eti.2022.102452Environmental Technology and Innovation, v. 27.2352-1864http://hdl.handle.net/11449/23058710.1016/j.eti.2022.1024522-s2.0-85126524927Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental Technology and Innovationinfo:eu-repo/semantics/openAccess2022-04-29T08:40:52Zoai:repositorio.unesp.br:11449/230587Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:40:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Application of natural organic residues in the remediation of metals from e-waste |
title |
Application of natural organic residues in the remediation of metals from e-waste |
spellingShingle |
Application of natural organic residues in the remediation of metals from e-waste Rosa, Luana Maria Tavares e-waste Humic substances Potentially toxic metals |
title_short |
Application of natural organic residues in the remediation of metals from e-waste |
title_full |
Application of natural organic residues in the remediation of metals from e-waste |
title_fullStr |
Application of natural organic residues in the remediation of metals from e-waste |
title_full_unstemmed |
Application of natural organic residues in the remediation of metals from e-waste |
title_sort |
Application of natural organic residues in the remediation of metals from e-waste |
author |
Rosa, Luana Maria Tavares |
author_facet |
Rosa, Luana Maria Tavares Botero, Wander Gustavo do Carmo, Janaina Braga Gabriel, Gabriele V.M. Waldman, Walter Ruggeri Cavagis, Alexandre D.M. Goveia, Danielle [UNESP] de Oliveira, Luciana Camargo |
author_role |
author |
author2 |
Botero, Wander Gustavo do Carmo, Janaina Braga Gabriel, Gabriele V.M. Waldman, Walter Ruggeri Cavagis, Alexandre D.M. Goveia, Danielle [UNESP] de Oliveira, Luciana Camargo |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Carlos (UFSCar) Postgraduate Program in Chemistry and Biotechnology Universidade Estadual Paulista (UNESP) FCLAr |
dc.contributor.author.fl_str_mv |
Rosa, Luana Maria Tavares Botero, Wander Gustavo do Carmo, Janaina Braga Gabriel, Gabriele V.M. Waldman, Walter Ruggeri Cavagis, Alexandre D.M. Goveia, Danielle [UNESP] de Oliveira, Luciana Camargo |
dc.subject.por.fl_str_mv |
e-waste Humic substances Potentially toxic metals |
topic |
e-waste Humic substances Potentially toxic metals |
description |
Contaminants, such as potentially toxic metals from e-waste, have been affecting soil, water and ecosystems throughout the world. Thus, the search for low cost natural substances, able to complex such metals, is a matter of both environmental and economic interest. Humic substances (HS) are the main natural organic complexing agents in ecosystems, and their alkaline extraction leads to a poorly soluble residue, which is often discarded, in spite of its great potential for chelating potentially toxic metals. Since both the structure and complexing capacity of HS might be significantly affected by the way of extraction, this study comparatively evaluated the implications of exhaustive and non-exhaustive extractions on physical–chemical and structural properties of different natural organic residues (NOR) obtained. Furthermore, adsorption studies were carried out in order to compare the influence of different extractions on the resulting NOR capacities to retain copper ions. The milder extractions, involving non-exhaustive procedures, led to a NOR with better copper adsorption, which was then selected to test the retention of copper from an e-waste leachate. Results evidenced the potential use of NOR for copper removal (340 μg Cu2+ g−1 of NOR), as well as other potentially toxic metals, such as iron, manganese and chromium, thus showing a promising application of this material in the environmental remediation of soils and waters. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-29T08:40:52Z 2022-04-29T08:40:52Z 2022-08-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.eti.2022.102452 Environmental Technology and Innovation, v. 27. 2352-1864 http://hdl.handle.net/11449/230587 10.1016/j.eti.2022.102452 2-s2.0-85126524927 |
url |
http://dx.doi.org/10.1016/j.eti.2022.102452 http://hdl.handle.net/11449/230587 |
identifier_str_mv |
Environmental Technology and Innovation, v. 27. 2352-1864 10.1016/j.eti.2022.102452 2-s2.0-85126524927 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Technology and Innovation |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1803046765866254336 |