Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge

Detalhes bibliográficos
Autor(a) principal: Pires, Adriana Marlene Moreno
Data de Publicação: 2004
Outros Autores: Mattiazzo, Maria Emília, Berton, Ronaldo Severiano
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6824
Resumo: An efficient extraction method to estimate concentrations of phytoavailable heavy metals has not been established yet, because the extractors used do not simulate reactions close to the roots. The objective of this work was to evaluate the use of a rhizospheric acid organic solution as an extractor of phytoavailable heavy metal from soils (Oxisols) treated with sewage sludge. Three Oxisols with different textures cultivated with banana, peach palm and coffee were studied. The extractor (solution composed by acetic, citric, lactic and oxalic acids with concentrations of 1.00, 0.72, 0.49 and 0.12 mol L-1, respectively) evaluation was performed from correlation analyzes between heavy metals (Cd, Cr, Cu, Ni, Pb e Zn) concentrations extracted from the soil, and plant tissue concentrations. The correlation was significant, indicating the extractant efficiency in all studied cases. Comparing the studied elements, the Pb amount extracted correlated better with its phytoavailability on the three situations investigated.
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spelling Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludgeÁcidos orgânicos como extratores de metais pesados fitodisponíveis em solos tratados com lodo de esgotobiosolid; trace elementsbiossólido; elementos traçoAn efficient extraction method to estimate concentrations of phytoavailable heavy metals has not been established yet, because the extractors used do not simulate reactions close to the roots. The objective of this work was to evaluate the use of a rhizospheric acid organic solution as an extractor of phytoavailable heavy metal from soils (Oxisols) treated with sewage sludge. Three Oxisols with different textures cultivated with banana, peach palm and coffee were studied. The extractor (solution composed by acetic, citric, lactic and oxalic acids with concentrations of 1.00, 0.72, 0.49 and 0.12 mol L-1, respectively) evaluation was performed from correlation analyzes between heavy metals (Cd, Cr, Cu, Ni, Pb e Zn) concentrations extracted from the soil, and plant tissue concentrations. The correlation was significant, indicating the extractant efficiency in all studied cases. Comparing the studied elements, the Pb amount extracted correlated better with its phytoavailability on the three situations investigated.Ainda não foi desenvolvido um método de extração eficiente para estimar teores fitodisponíveis de metais pesados, porque os extratores utilizados não simulam reações semelhantes às que ocorrem próximo às raízes. O objetivo deste trabalho foi avaliar uma solução de ácidos orgânicos rizosféricos como extratora de teores fitodisponíveis de metais pesados presentes em solos tratados com lodo de esgoto. Os solos utilizados foram: Latossolo Amarelo distrófico, Neossolo Quartzarênico e Latossolo Vermelho distrófico, cultivados com plantas de banana, pupunha e café, respectivamente. A avaliação do extrator (solução composta por ácido acético, cítrico, lático e oxálico em concentrações de 1,00, 0,72, 0,49 e 0,12 mol L-1, respectivamente) foi feita a partir da análise da correlação entre teores de metais pesados (Cd, Cr, Cu, Ni, Pb e Zn) extraídos do solo e os teores nas plantas. As correlações foram significativas, indicando a eficiência do extrator para todos os casos estudados. Entre os metais avaliados, as quantidades extraídas de Pb correlacionaram-se melhor com teor fitodisponível nas três situações investigadas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraPires, Adriana Marlene MorenoMattiazzo, Maria EmíliaBerton, Ronaldo Severiano2004-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6824Pesquisa Agropecuaria Brasileira; v.39, n.7, jul. 2004; 671-676Pesquisa Agropecuária Brasileira; v.39, n.7, jul. 2004; 671-6761678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6824/3880info:eu-repo/semantics/openAccess2014-08-04T19:39:20Zoai:ojs.seer.sct.embrapa.br:article/6824Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-04T19:39:20Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
Ácidos orgânicos como extratores de metais pesados fitodisponíveis em solos tratados com lodo de esgoto
title Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
spellingShingle Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
Pires, Adriana Marlene Moreno
biosolid; trace elements
biossólido; elementos traço
title_short Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
title_full Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
title_fullStr Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
title_full_unstemmed Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
title_sort Organic acids as extractors of phytoavailable heavy metals in soils treated with sewage sludge
author Pires, Adriana Marlene Moreno
author_facet Pires, Adriana Marlene Moreno
Mattiazzo, Maria Emília
Berton, Ronaldo Severiano
author_role author
author2 Mattiazzo, Maria Emília
Berton, Ronaldo Severiano
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Pires, Adriana Marlene Moreno
Mattiazzo, Maria Emília
Berton, Ronaldo Severiano
dc.subject.por.fl_str_mv biosolid; trace elements
biossólido; elementos traço
topic biosolid; trace elements
biossólido; elementos traço
description An efficient extraction method to estimate concentrations of phytoavailable heavy metals has not been established yet, because the extractors used do not simulate reactions close to the roots. The objective of this work was to evaluate the use of a rhizospheric acid organic solution as an extractor of phytoavailable heavy metal from soils (Oxisols) treated with sewage sludge. Three Oxisols with different textures cultivated with banana, peach palm and coffee were studied. The extractor (solution composed by acetic, citric, lactic and oxalic acids with concentrations of 1.00, 0.72, 0.49 and 0.12 mol L-1, respectively) evaluation was performed from correlation analyzes between heavy metals (Cd, Cr, Cu, Ni, Pb e Zn) concentrations extracted from the soil, and plant tissue concentrations. The correlation was significant, indicating the extractant efficiency in all studied cases. Comparing the studied elements, the Pb amount extracted correlated better with its phytoavailability on the three situations investigated.
publishDate 2004
dc.date.none.fl_str_mv 2004-07-01
dc.type.none.fl_str_mv
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 https://seer.sct.embrapa.br/index.php/pab/article/view/6824
url https://seer.sct.embrapa.br/index.php/pab/article/view/6824
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6824/3880
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.39, n.7, jul. 2004; 671-676
Pesquisa Agropecuária Brasileira; v.39, n.7, jul. 2004; 671-676
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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