Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/16819 |
Resumo: | Interest in soil contamination has been growing in recent years due to the ongoing degradation of soil environments. Therefore, the development of remediation techniques and the study of contaminant sorption and migration are areas of intense research. In this study, the authors sought to evaluate the scenario of co-contamination of a loamy sand soil by multiple heavy metals. To that end, the sorption and transport of five metals—Cr, Pb, Cd, Cu and Zn—was evaluated using representative samples of a soil from the north of Portugal. The tests were conducted in batch and continuous systems using single- and multiple-metal acid solutions to evaluate the effect of metal competition. In accordance with the type of assay—batch or continuous—Langmuir or Convection Dispersion Two-Site Nonequilibrium models were adjusted to explain the sorption/transport data. FTIR analyses were performed on the final samples of the continuous systems. Generally, the results revealed good fitting of the tested models for the metals in competitive and noncompetitive scenarios, with the exception of Zn that was originally present in soil samples at higher concentrations. As expected, the influence of competition was observed in both batch and continuous systems, but with different tendencies. The FTIR spectra also revealed a strong influence of clay minerals and organic matter on the sorption of the metals. |
id |
RCAP_f9cb47f89bd449ca86a1d911fbc5f5dc |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/16819 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative studyHeavy metalsSoilsSorptionConvection–dispersionEquilibriumScience & TechnologyInterest in soil contamination has been growing in recent years due to the ongoing degradation of soil environments. Therefore, the development of remediation techniques and the study of contaminant sorption and migration are areas of intense research. In this study, the authors sought to evaluate the scenario of co-contamination of a loamy sand soil by multiple heavy metals. To that end, the sorption and transport of five metals—Cr, Pb, Cd, Cu and Zn—was evaluated using representative samples of a soil from the north of Portugal. The tests were conducted in batch and continuous systems using single- and multiple-metal acid solutions to evaluate the effect of metal competition. In accordance with the type of assay—batch or continuous—Langmuir or Convection Dispersion Two-Site Nonequilibrium models were adjusted to explain the sorption/transport data. FTIR analyses were performed on the final samples of the continuous systems. Generally, the results revealed good fitting of the tested models for the metals in competitive and noncompetitive scenarios, with the exception of Zn that was originally present in soil samples at higher concentrations. As expected, the influence of competition was observed in both batch and continuous systems, but with different tendencies. The FTIR spectra also revealed a strong influence of clay minerals and organic matter on the sorption of the metals.The PhD grants of Bruna Fonseca and Hugo Figueiredo and the research grant of Joana Rodrigues were financially supported by Fundacao para a Ciencia e Tecnologia, Ministerio da Ciencia e Tecnologia, Portugal and Fundo Social Europeu (FSE).Elsevier Science BVUniversidade do MinhoFonseca, BrunaFigueiredo, HugoRodrigues, Joana Lúcia Lima CorreiaQueiroz, A.Tavares, M. T.2011-07-162011-07-16T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/16819eng0016-706110.1016/j.geoderma.2011.06.016info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:17:47Zoai:repositorium.sdum.uminho.pt:1822/16819Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:10:27.046921Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study |
title |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study |
spellingShingle |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study Fonseca, Bruna Heavy metals Soils Sorption Convection–dispersion Equilibrium Science & Technology |
title_short |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study |
title_full |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study |
title_fullStr |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study |
title_full_unstemmed |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study |
title_sort |
Mobility of Cr, Pb, Cd, Cu and Zn in a loamy sand soil : a comparative study |
author |
Fonseca, Bruna |
author_facet |
Fonseca, Bruna Figueiredo, Hugo Rodrigues, Joana Lúcia Lima Correia Queiroz, A. Tavares, M. T. |
author_role |
author |
author2 |
Figueiredo, Hugo Rodrigues, Joana Lúcia Lima Correia Queiroz, A. Tavares, M. T. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Fonseca, Bruna Figueiredo, Hugo Rodrigues, Joana Lúcia Lima Correia Queiroz, A. Tavares, M. T. |
dc.subject.por.fl_str_mv |
Heavy metals Soils Sorption Convection–dispersion Equilibrium Science & Technology |
topic |
Heavy metals Soils Sorption Convection–dispersion Equilibrium Science & Technology |
description |
Interest in soil contamination has been growing in recent years due to the ongoing degradation of soil environments. Therefore, the development of remediation techniques and the study of contaminant sorption and migration are areas of intense research. In this study, the authors sought to evaluate the scenario of co-contamination of a loamy sand soil by multiple heavy metals. To that end, the sorption and transport of five metals—Cr, Pb, Cd, Cu and Zn—was evaluated using representative samples of a soil from the north of Portugal. The tests were conducted in batch and continuous systems using single- and multiple-metal acid solutions to evaluate the effect of metal competition. In accordance with the type of assay—batch or continuous—Langmuir or Convection Dispersion Two-Site Nonequilibrium models were adjusted to explain the sorption/transport data. FTIR analyses were performed on the final samples of the continuous systems. Generally, the results revealed good fitting of the tested models for the metals in competitive and noncompetitive scenarios, with the exception of Zn that was originally present in soil samples at higher concentrations. As expected, the influence of competition was observed in both batch and continuous systems, but with different tendencies. The FTIR spectra also revealed a strong influence of clay minerals and organic matter on the sorption of the metals. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07-16 2011-07-16T00:00:00Z |
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://hdl.handle.net/1822/16819 |
url |
http://hdl.handle.net/1822/16819 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0016-7061 10.1016/j.geoderma.2011.06.016 |
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 |
Elsevier Science BV |
publisher.none.fl_str_mv |
Elsevier Science BV |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799132533449818112 |