Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil

Detalhes bibliográficos
Autor(a) principal: Da Costa Neto, A.
Data de Publicação: 2003
Outros Autores: Bonotto, Daniel Marcos [UNESP], Mesquita, F. L A
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.2495/EHR030011
http://hdl.handle.net/11449/67524
Resumo: This investigation was carried out at the Madeira River basin, located in the state of Rondônia, Brazilian Amazon. Sediments from Madeira River between Teotônio and Santo Antônio waterfalls along 25 km upstream from Porto Velho, the capital of Rondônia state, and from nine lakes located around Porto Velho municipality were chemically analyzed for Se (IV) in order to evaluate the main factors affecting the Se(IV) distribution in the environment, Selenite ion was chosen to investigate the selenium behavior in the area, because acid conditions are dominant there. The importance of clays, iron oxides, organic matter and minor refractory minerals was considered in order to explain most of the obtained data.
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spelling Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, BrazilEnamelsEnvironmental impactLakesMembranesNutritionPigmentsRedox reactionsRefractory materialsSedimentsSelenium compoundsToxicityWastewaterAcid conditionsGeogenic factorsMadeira River basinwaterfallsRiver basin projectsThis investigation was carried out at the Madeira River basin, located in the state of Rondônia, Brazilian Amazon. Sediments from Madeira River between Teotônio and Santo Antônio waterfalls along 25 km upstream from Porto Velho, the capital of Rondônia state, and from nine lakes located around Porto Velho municipality were chemically analyzed for Se (IV) in order to evaluate the main factors affecting the Se(IV) distribution in the environment, Selenite ion was chosen to investigate the selenium behavior in the area, because acid conditions are dominant there. The importance of clays, iron oxides, organic matter and minor refractory minerals was considered in order to explain most of the obtained data.Depto. de Ciências Exatas Fund. Univ. Fed. de Rondônia UNIRDepartamento de Petrologia Inst. Geociências/Cie. Exatas UNESP, Rio ClaraCurso de Zootecnia Univ. Estadual Vale do Acaraú UVA, SobralDepartamento de Petrologia Inst. Geociências/Cie. Exatas UNESP, Rio ClaraUNIRUniversidade Estadual Paulista (Unesp)UVADa Costa Neto, A.Bonotto, Daniel Marcos [UNESP]Mesquita, F. L A2014-05-27T11:20:57Z2014-05-27T11:20:57Z2003-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject3-14http://dx.doi.org/10.2495/EHR030011Sustainable World, v. 8, p. 3-14.http://hdl.handle.net/11449/6752410.2495/EHR0300112-s2.0-29426918997430102726026121Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSustainable Worldinfo:eu-repo/semantics/openAccess2021-10-23T21:37:55Zoai:repositorio.unesp.br:11449/67524Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T21:37:55Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
title Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
spellingShingle Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
Da Costa Neto, A.
Enamels
Environmental impact
Lakes
Membranes
Nutrition
Pigments
Redox reactions
Refractory materials
Sediments
Selenium compounds
Toxicity
Wastewater
Acid conditions
Geogenic factors
Madeira River basin
waterfalls
River basin projects
title_short Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
title_full Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
title_fullStr Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
title_full_unstemmed Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
title_sort Geogenic factors affecting the selenium(IV) distribution in sediments from Madeira River Basin, Brazil
author Da Costa Neto, A.
author_facet Da Costa Neto, A.
Bonotto, Daniel Marcos [UNESP]
Mesquita, F. L A
author_role author
author2 Bonotto, Daniel Marcos [UNESP]
Mesquita, F. L A
author2_role author
author
dc.contributor.none.fl_str_mv UNIR
Universidade Estadual Paulista (Unesp)
UVA
dc.contributor.author.fl_str_mv Da Costa Neto, A.
Bonotto, Daniel Marcos [UNESP]
Mesquita, F. L A
dc.subject.por.fl_str_mv Enamels
Environmental impact
Lakes
Membranes
Nutrition
Pigments
Redox reactions
Refractory materials
Sediments
Selenium compounds
Toxicity
Wastewater
Acid conditions
Geogenic factors
Madeira River basin
waterfalls
River basin projects
topic Enamels
Environmental impact
Lakes
Membranes
Nutrition
Pigments
Redox reactions
Refractory materials
Sediments
Selenium compounds
Toxicity
Wastewater
Acid conditions
Geogenic factors
Madeira River basin
waterfalls
River basin projects
description This investigation was carried out at the Madeira River basin, located in the state of Rondônia, Brazilian Amazon. Sediments from Madeira River between Teotônio and Santo Antônio waterfalls along 25 km upstream from Porto Velho, the capital of Rondônia state, and from nine lakes located around Porto Velho municipality were chemically analyzed for Se (IV) in order to evaluate the main factors affecting the Se(IV) distribution in the environment, Selenite ion was chosen to investigate the selenium behavior in the area, because acid conditions are dominant there. The importance of clays, iron oxides, organic matter and minor refractory minerals was considered in order to explain most of the obtained data.
publishDate 2003
dc.date.none.fl_str_mv 2003-12-01
2014-05-27T11:20:57Z
2014-05-27T11:20:57Z
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/10.2495/EHR030011
Sustainable World, v. 8, p. 3-14.
http://hdl.handle.net/11449/67524
10.2495/EHR030011
2-s2.0-2942691899
7430102726026121
url http://dx.doi.org/10.2495/EHR030011
http://hdl.handle.net/11449/67524
identifier_str_mv Sustainable World, v. 8, p. 3-14.
10.2495/EHR030011
2-s2.0-2942691899
7430102726026121
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sustainable World
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 3-14
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
_version_ 1799964531686899712

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