First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.11159/icepr19.163 http://hdl.handle.net/11449/198153 |
Resumo: | The failure of the Fundão dam in Brazil spilled contaminated sediments to the Doce river basin with high levels of pH,ether-amine and sodium. In the present study, it was established a riparian forest over contaminated sediment using two main remediation strategies: phytoremediation with native species to the Atlantic Forest, previously selected for tolerance to the sediment toxicity, and physico-chemical remediation by management of the sediment with incorporation of OM. In the experimental site (ES), 12 native species were cultivated under two treatments: T1- management of the sediments with incorporation of OM and T2- nonmanaged sediment + superficial deposition of OM. The results were compared with a degraded site (DS) affected by the contaminated sediments and a preserved site (PS) composed of a fragment of preserved Atlantic Forest. After 6 month of transplanting, plants from T1 showed a better height growth performance (up to 3m) and survival index in relation to T2, as well as a significant decline of ether- amine and sodium contents. Besides the improvement of soil fertility, the amendment with OM promoted a pH reduction, favoring ether-amine destabilization, sodium sequestration and improvement of soil microbial populations. Soil nitrification was improved as revealed by the significant increase of nitrate which seems to have favoured the rampant growth of tolerant plant species after 6 months of planting. Therefore, it is recommended the incorporation of OM to the sediment and phytoremediation with selected tolerant species to remediate sodium and ether-amine toxicity. |
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First report of field remediation of contaminated tailings from the collapsed Fundão dam in BrazilDam tailingsEther-aminePHPhytoremediationReclamationSodiumThe failure of the Fundão dam in Brazil spilled contaminated sediments to the Doce river basin with high levels of pH,ether-amine and sodium. In the present study, it was established a riparian forest over contaminated sediment using two main remediation strategies: phytoremediation with native species to the Atlantic Forest, previously selected for tolerance to the sediment toxicity, and physico-chemical remediation by management of the sediment with incorporation of OM. In the experimental site (ES), 12 native species were cultivated under two treatments: T1- management of the sediments with incorporation of OM and T2- nonmanaged sediment + superficial deposition of OM. The results were compared with a degraded site (DS) affected by the contaminated sediments and a preserved site (PS) composed of a fragment of preserved Atlantic Forest. After 6 month of transplanting, plants from T1 showed a better height growth performance (up to 3m) and survival index in relation to T2, as well as a significant decline of ether- amine and sodium contents. Besides the improvement of soil fertility, the amendment with OM promoted a pH reduction, favoring ether-amine destabilization, sodium sequestration and improvement of soil microbial populations. Soil nitrification was improved as revealed by the significant increase of nitrate which seems to have favoured the rampant growth of tolerant plant species after 6 months of planting. Therefore, it is recommended the incorporation of OM to the sediment and phytoremediation with selected tolerant species to remediate sodium and ether-amine toxicity.Depto de Botânica/ICB/UFMG, Av Antonio Carlos 6627Escola de Arquitetura UFMG Programa Pós Graduação em Ambiente Construido e Patrimonio Sustentavel, Av Antonio Carlos 6627Dept. Produção Vegetal Universidade do Estado de São Paulo/Unesp, Via Professor Paulo Donato Castelane Castellane S/N - Vila IndustrialDept. Produção Vegetal Universidade do Estado de São Paulo/Unesp, Via Professor Paulo Donato Castelane Castellane S/N - Vila IndustrialUniversidade Federal de Minas Gerais (UFMG)Universidade Estadual Paulista (Unesp)Scotti, Maria RitaAvila, Stephania S.Mendes, LeonardoLacerda, Tomas J.Silva, Samuel Lourenço L.Antão, Arthur C.Gomes, Alessandra R.F.Medeiros, Mirelli B.Alvarenga, StaelSantos, Carlos Henrique B. [UNESP]Rigobelo, Everlon C. [UNESP]2020-12-12T01:00:35Z2020-12-12T01:00:35Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.11159/icepr19.163Proceedings of the World Congress on New Technologies, v. 0.2369-8128http://hdl.handle.net/11449/19815310.11159/icepr19.1632-s2.0-85075132703Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the World Congress on New Technologiesinfo:eu-repo/semantics/openAccess2021-10-23T09:13:50Zoai:repositorio.unesp.br:11449/198153Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T09:13:50Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil |
title |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil |
spellingShingle |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil Scotti, Maria Rita Dam tailings Ether-amine PH Phytoremediation Reclamation Sodium |
title_short |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil |
title_full |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil |
title_fullStr |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil |
title_full_unstemmed |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil |
title_sort |
First report of field remediation of contaminated tailings from the collapsed Fundão dam in Brazil |
author |
Scotti, Maria Rita |
author_facet |
Scotti, Maria Rita Avila, Stephania S. Mendes, Leonardo Lacerda, Tomas J. Silva, Samuel Lourenço L. Antão, Arthur C. Gomes, Alessandra R.F. Medeiros, Mirelli B. Alvarenga, Stael Santos, Carlos Henrique B. [UNESP] Rigobelo, Everlon C. [UNESP] |
author_role |
author |
author2 |
Avila, Stephania S. Mendes, Leonardo Lacerda, Tomas J. Silva, Samuel Lourenço L. Antão, Arthur C. Gomes, Alessandra R.F. Medeiros, Mirelli B. Alvarenga, Stael Santos, Carlos Henrique B. [UNESP] Rigobelo, Everlon C. [UNESP] |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Minas Gerais (UFMG) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Scotti, Maria Rita Avila, Stephania S. Mendes, Leonardo Lacerda, Tomas J. Silva, Samuel Lourenço L. Antão, Arthur C. Gomes, Alessandra R.F. Medeiros, Mirelli B. Alvarenga, Stael Santos, Carlos Henrique B. [UNESP] Rigobelo, Everlon C. [UNESP] |
dc.subject.por.fl_str_mv |
Dam tailings Ether-amine PH Phytoremediation Reclamation Sodium |
topic |
Dam tailings Ether-amine PH Phytoremediation Reclamation Sodium |
description |
The failure of the Fundão dam in Brazil spilled contaminated sediments to the Doce river basin with high levels of pH,ether-amine and sodium. In the present study, it was established a riparian forest over contaminated sediment using two main remediation strategies: phytoremediation with native species to the Atlantic Forest, previously selected for tolerance to the sediment toxicity, and physico-chemical remediation by management of the sediment with incorporation of OM. In the experimental site (ES), 12 native species were cultivated under two treatments: T1- management of the sediments with incorporation of OM and T2- nonmanaged sediment + superficial deposition of OM. The results were compared with a degraded site (DS) affected by the contaminated sediments and a preserved site (PS) composed of a fragment of preserved Atlantic Forest. After 6 month of transplanting, plants from T1 showed a better height growth performance (up to 3m) and survival index in relation to T2, as well as a significant decline of ether- amine and sodium contents. Besides the improvement of soil fertility, the amendment with OM promoted a pH reduction, favoring ether-amine destabilization, sodium sequestration and improvement of soil microbial populations. Soil nitrification was improved as revealed by the significant increase of nitrate which seems to have favoured the rampant growth of tolerant plant species after 6 months of planting. Therefore, it is recommended the incorporation of OM to the sediment and phytoremediation with selected tolerant species to remediate sodium and ether-amine toxicity. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-12T01:00:35Z 2020-12-12T01:00:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.11159/icepr19.163 Proceedings of the World Congress on New Technologies, v. 0. 2369-8128 http://hdl.handle.net/11449/198153 10.11159/icepr19.163 2-s2.0-85075132703 |
url |
http://dx.doi.org/10.11159/icepr19.163 http://hdl.handle.net/11449/198153 |
identifier_str_mv |
Proceedings of the World Congress on New Technologies, v. 0. 2369-8128 10.11159/icepr19.163 2-s2.0-85075132703 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the World Congress on New Technologies |
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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1799964524409782272 |