Efficiency of biochars in the removal of heavy metals
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Brasiliensis (Online) |
Texto Completo: | http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/242 |
Resumo: | Toxic metals are naturally present in the environment even if there is no anthropic action. Several methods are used for the removal of these metals from water and effluents, such as: chemical precipitation, oxidation/reduction, filtration, ion exchange, membrane separation, and adsorption. Biosorption stands out as an effective treatment because it has a high rate of renewal in nature, low production costs, and high removal of metals due to the possibility of recovery of the contaminant, either by incinerating the biomass or by desorbing it. Thus, this study identified some biochars used as adsorbents for the removal of copper, lead, chromium, and mercury in water. It can be concluded from this study that adsorption is a very efficient technique for removing or recovering heavy metals from the environment. These biocarbons are alternatives that can replace commercial activated carbon because, besides having a low production cost, they have been shown to efficiently remove metal ions, ensuring an effective treatment in compliance with effluent release standards. |
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Efficiency of biochars in the removal of heavy metals Eficiência de biocarvões na remoção de metais pesadosToxic metals are naturally present in the environment even if there is no anthropic action. Several methods are used for the removal of these metals from water and effluents, such as: chemical precipitation, oxidation/reduction, filtration, ion exchange, membrane separation, and adsorption. Biosorption stands out as an effective treatment because it has a high rate of renewal in nature, low production costs, and high removal of metals due to the possibility of recovery of the contaminant, either by incinerating the biomass or by desorbing it. Thus, this study identified some biochars used as adsorbents for the removal of copper, lead, chromium, and mercury in water. It can be concluded from this study that adsorption is a very efficient technique for removing or recovering heavy metals from the environment. These biocarbons are alternatives that can replace commercial activated carbon because, besides having a low production cost, they have been shown to efficiently remove metal ions, ensuring an effective treatment in compliance with effluent release standards.Os metais pesados estão presentes naturalmente no meio ambiente mesmo que não haja ação antrópica. Vários métodos são utilizados para a remoção desses metais presentes na água e efluentes, tais como: precipitação química, oxidação/redução, filtração, troca iônica, separação por membranas e adsorção. A biossorção se destaca como um tratamento eficaz por possuir alta taxa de renovação na natureza, baixos custos de obtenção, altas remoções de metais e, devido à possibilidade da recuperação do contaminante, seja incinerando a biomassa ou realizando a sua dessorção. Dessa forma, o objetivo deste estudo foi levantar os principais biocarvões que estão sendo utilizados como adsorventes para a remoção de metais pesados na água, a saber, cobre, chumbo, cromo e mercúrio, para uma aplicação futura em sistemas de tratamento de efluentes. O uso de resíduos de cana-de-açúcar como bioadsorvente na adsorção de metais pesados mostrou resultados significativos usando uma biomassa abundante, natural, de origem renovável e de baixo custo, para fins de adsorção de alta eficiência para os íons estudados. Por fim, a presente pesquisa apresenta uma contribuição por demonstrar que esses materiais adsorventes abundantes e de baixo custo podem ser utilizados na remoção de metais pesados em baixas concentrações.Universidade Federal de Campina Grande - UFCG2019-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/24210.22571/2526-4338242Acta Brasiliensis; Vol 3 No 3 (2019): Acta Brasiliensis; 131-138Acta Brasiliensis; Vol 3 No 3 (2019): Acta Brasiliensis; 131-138Acta Brasiliensis; Vol 3 No 3 (2019): Acta Brasiliensis; 131-1382526-43382526-432Xreponame:Acta Brasiliensis (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCGenghttp://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/242/77Copyright (c) 2019 Acta Brasiliensisinfo:eu-repo/semantics/openAccessmartins, Denise domingos dos santosSerra, Juan Carlos ValdésZukowski Junior, Joel CarlosPedroza, Marcelo Mendes2021-07-12T20:03:49Zoai:ActaBra.revistas.ufcg.edu.br:article/242Revistahttp://revistas.ufcg.edu.br/ActaBraPUBhttp://revistas.ufcg.edu.br/ActaBra/index.php/actabra/oaiactabrasiliensis@gmail.com || actabrasiliensis@gmail.com2526-432X2526-4338opendoar:2021-07-12T20:03:49Acta Brasiliensis (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Efficiency of biochars in the removal of heavy metals Eficiência de biocarvões na remoção de metais pesados |
title |
Efficiency of biochars in the removal of heavy metals |
spellingShingle |
Efficiency of biochars in the removal of heavy metals martins, Denise domingos dos santos |
title_short |
Efficiency of biochars in the removal of heavy metals |
title_full |
Efficiency of biochars in the removal of heavy metals |
title_fullStr |
Efficiency of biochars in the removal of heavy metals |
title_full_unstemmed |
Efficiency of biochars in the removal of heavy metals |
title_sort |
Efficiency of biochars in the removal of heavy metals |
author |
martins, Denise domingos dos santos |
author_facet |
martins, Denise domingos dos santos Serra, Juan Carlos Valdés Zukowski Junior, Joel Carlos Pedroza, Marcelo Mendes |
author_role |
author |
author2 |
Serra, Juan Carlos Valdés Zukowski Junior, Joel Carlos Pedroza, Marcelo Mendes |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
martins, Denise domingos dos santos Serra, Juan Carlos Valdés Zukowski Junior, Joel Carlos Pedroza, Marcelo Mendes |
description |
Toxic metals are naturally present in the environment even if there is no anthropic action. Several methods are used for the removal of these metals from water and effluents, such as: chemical precipitation, oxidation/reduction, filtration, ion exchange, membrane separation, and adsorption. Biosorption stands out as an effective treatment because it has a high rate of renewal in nature, low production costs, and high removal of metals due to the possibility of recovery of the contaminant, either by incinerating the biomass or by desorbing it. Thus, this study identified some biochars used as adsorbents for the removal of copper, lead, chromium, and mercury in water. It can be concluded from this study that adsorption is a very efficient technique for removing or recovering heavy metals from the environment. These biocarbons are alternatives that can replace commercial activated carbon because, besides having a low production cost, they have been shown to efficiently remove metal ions, ensuring an effective treatment in compliance with effluent release standards. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-09-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/242 10.22571/2526-4338242 |
url |
http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/242 |
identifier_str_mv |
10.22571/2526-4338242 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/242/77 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Acta Brasiliensis info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Acta Brasiliensis |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Campina Grande - UFCG |
publisher.none.fl_str_mv |
Universidade Federal de Campina Grande - UFCG |
dc.source.none.fl_str_mv |
Acta Brasiliensis; Vol 3 No 3 (2019): Acta Brasiliensis; 131-138 Acta Brasiliensis; Vol 3 No 3 (2019): Acta Brasiliensis; 131-138 Acta Brasiliensis; Vol 3 No 3 (2019): Acta Brasiliensis; 131-138 2526-4338 2526-432X reponame:Acta Brasiliensis (Online) instname:Universidade Federal de Campina Grande (UFCG) instacron:UFCG |
instname_str |
Universidade Federal de Campina Grande (UFCG) |
instacron_str |
UFCG |
institution |
UFCG |
reponame_str |
Acta Brasiliensis (Online) |
collection |
Acta Brasiliensis (Online) |
repository.name.fl_str_mv |
Acta Brasiliensis (Online) - Universidade Federal de Campina Grande (UFCG) |
repository.mail.fl_str_mv |
actabrasiliensis@gmail.com || actabrasiliensis@gmail.com |
_version_ |
1792204524093440000 |