Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil

Detalhes bibliográficos
Autor(a) principal: Ferreira, Ana Rita
Data de Publicação: 2019
Outros Autores: Couto, Nazaré, Ribeiro, Alexandra B., Ottosen, Lisbeth M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://doi.org/10.1007/s11270-019-4116-y
Resumo: UID/AMB/04085/2019.
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spelling Electrodialytic Arsenic Removal from Bulk and Pre-treated SoilArsenicSoil contaminationElectrodialytic remediationSoil washingUID/AMB/04085/2019.Arsenic (As) is a well-known highly toxic and carcinogenic element. A combination of electrodialytic remediation (EDR) after soil washing with flocculant addition targeting remediation of a soil polluted with As from wood preservation industry is the focus of this paper. The fine fraction (< 0.063 mm) from the washed soil after dry sieving was also considered. The EDR experiments were carried out in a 2-compartment cell applying 0.01 mA/cm2 during 14, 7 and 3 days. The suspended soil slurry was placed in cathode compartment separated by anion exchange membrane (AEM) of the anolyte where the pH was kept at 10. The soil was highly polluted with As, and the EDR was able to remove between 50 and 80% corresponding to 400–478 mg As/kg of soil. The major part of the As was removed within the first 3 days (63%), and approx. 10% more of As was released doubling the time of the experiment: 72% in 7 days and 80% in 14 days. The pre-treated soil showed higher As initial concentration, but did not show a clear advantage in terms of removal rate as the original soil (not washed or sieved) showed 80% of As removal comparing with 61% and 50% for washed and fine fraction, respectively (although the absolute removed concentration was similar). The sequential extraction results confirmed that As was bound into more mobile fractions in original soil, and the higher removal was mainly due to its larger exchangeable and reducible fractions compared to the oxidizable and residual fraction in pre-treated soil.CENSE - Centro de Investigação em Ambiente e SustentabilidadeDCEA - Departamento de Ciências e Engenharia do AmbienteRUNFerreira, Ana RitaCouto, NazaréRibeiro, Alexandra B.Ottosen, Lisbeth M.2022-03-28T00:31:11Z2019-04-012019-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.1007/s11270-019-4116-yeng0049-6979PURE: 11864747http://link.springer.com/10.1007/s11270-019-4116-yhttps://doi.org/10.1007/s11270-019-4116-yinfo: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:RCAAP2024-03-11T04:30:04Zoai:run.unl.pt:10362/63436Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:33:55.694954Repositório 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 Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
title Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
spellingShingle Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
Ferreira, Ana Rita
Arsenic
Soil contamination
Electrodialytic remediation
Soil washing
title_short Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
title_full Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
title_fullStr Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
title_full_unstemmed Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
title_sort Electrodialytic Arsenic Removal from Bulk and Pre-treated Soil
author Ferreira, Ana Rita
author_facet Ferreira, Ana Rita
Couto, Nazaré
Ribeiro, Alexandra B.
Ottosen, Lisbeth M.
author_role author
author2 Couto, Nazaré
Ribeiro, Alexandra B.
Ottosen, Lisbeth M.
author2_role author
author
author
dc.contributor.none.fl_str_mv CENSE - Centro de Investigação em Ambiente e Sustentabilidade
DCEA - Departamento de Ciências e Engenharia do Ambiente
RUN
dc.contributor.author.fl_str_mv Ferreira, Ana Rita
Couto, Nazaré
Ribeiro, Alexandra B.
Ottosen, Lisbeth M.
dc.subject.por.fl_str_mv Arsenic
Soil contamination
Electrodialytic remediation
Soil washing
topic Arsenic
Soil contamination
Electrodialytic remediation
Soil washing
description UID/AMB/04085/2019.
publishDate 2019
dc.date.none.fl_str_mv 2019-04-01
2019-04-01T00:00:00Z
2022-03-28T00:31:11Z
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 https://doi.org/10.1007/s11270-019-4116-y
url https://doi.org/10.1007/s11270-019-4116-y
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0049-6979
PURE: 11864747
http://link.springer.com/10.1007/s11270-019-4116-y
https://doi.org/10.1007/s11270-019-4116-y
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.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
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