Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments

Autores
Porzionato, Natalia Florencia; Mellota, Mariangeles; Candal, Roberto Jorge; Curutchet, Gustavo Andres
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sediments from polluted urban streams act as a sink of contaminants. The high content of organic matter and sulphides makes the system appropriate for binding heavy metals. However, changes in the redox potential leads to processes in which sediments acts like a low sulphidic ore in an oxidizing environment, and could generate acid drainages. Human and not human disturbances of the sediments could derive in its oxidation catalyzed by sulphur oxidizing bacteria (SOB). This process leads to acidification and metal release. In this study we analyze the acidification potential of anaerobic sediments of polluted streams near Buenos Aires with static and kinetic methods. The results remark the necessity to consider this process before any sediment management action.
Fil: Porzionato, Natalia Florencia. Universidad Nacional de San Martín. Instituto de Investigación E Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mellota, Mariangeles. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Candal, Roberto Jorge. Universidad Nacional de San Martín. Instituto de Investigación E Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Curutchet, Gustavo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad Nacional de San Martín; Argentina
Materia
Bioleaching
Acidification Potential
Redox Potential Changes
Urban Streams
Heavy Metals
Sediment Oxidation
Reconquista River
Acid Drainage
Sulphur Oxidizing Bacteria
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7887
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/7887
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sedimentsPorzionato, Natalia FlorenciaMellota, MariangelesCandal, Roberto JorgeCurutchet, Gustavo AndresBioleachingAcidification PotentialRedox Potential ChangesUrban StreamsHeavy MetalsSediment OxidationReconquista RiverAcid DrainageSulphur Oxidizing Bacteriahttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Sediments from polluted urban streams act as a sink of contaminants. The high content of organic matter and sulphides makes the system appropriate for binding heavy metals. However, changes in the redox potential leads to processes in which sediments acts like a low sulphidic ore in an oxidizing environment, and could generate acid drainages. Human and not human disturbances of the sediments could derive in its oxidation catalyzed by sulphur oxidizing bacteria (SOB). This process leads to acidification and metal release. In this study we analyze the acidification potential of anaerobic sediments of polluted streams near Buenos Aires with static and kinetic methods. The results remark the necessity to consider this process before any sediment management action.Fil: Porzionato, Natalia Florencia. Universidad Nacional de San Martín. Instituto de Investigación E Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mellota, Mariangeles. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Candal, Roberto Jorge. Universidad Nacional de San Martín. Instituto de Investigación E Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Curutchet, Gustavo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad Nacional de San Martín; ArgentinaTrans Tech Publications2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7887Porzionato, Natalia Florencia; Mellota, Mariangeles; Candal, Roberto Jorge; Curutchet, Gustavo Andres; Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments; Trans Tech Publications; Advanced Materials Research; 825; 8-2013; 496-4991662-8985enginfo:eu-repo/semantics/altIdentifier/url/http://www.scientific.net/AMR.825.496info:eu-repo/semantics/altIdentifier/doi/10.4028/www.scientific.net/AMR.825.496info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T12:04:37Zoai:ri.conicet.gov.ar:11336/7887instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-29 12:04:38.084CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
title Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
spellingShingle Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
Porzionato, Natalia Florencia
Bioleaching
Acidification Potential
Redox Potential Changes
Urban Streams
Heavy Metals
Sediment Oxidation
Reconquista River
Acid Drainage
Sulphur Oxidizing Bacteria
title_short Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
title_full Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
title_fullStr Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
title_full_unstemmed Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
title_sort Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments
dc.creator.none.fl_str_mv Porzionato, Natalia Florencia
Mellota, Mariangeles
Candal, Roberto Jorge
Curutchet, Gustavo Andres
author Porzionato, Natalia Florencia
author_facet Porzionato, Natalia Florencia
Mellota, Mariangeles
Candal, Roberto Jorge
Curutchet, Gustavo Andres
author_role author
author2 Mellota, Mariangeles
Candal, Roberto Jorge
Curutchet, Gustavo Andres
author2_role author
author
author
dc.subject.none.fl_str_mv Bioleaching
Acidification Potential
Redox Potential Changes
Urban Streams
Heavy Metals
Sediment Oxidation
Reconquista River
Acid Drainage
Sulphur Oxidizing Bacteria
topic Bioleaching
Acidification Potential
Redox Potential Changes
Urban Streams
Heavy Metals
Sediment Oxidation
Reconquista River
Acid Drainage
Sulphur Oxidizing Bacteria
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Sediments from polluted urban streams act as a sink of contaminants. The high content of organic matter and sulphides makes the system appropriate for binding heavy metals. However, changes in the redox potential leads to processes in which sediments acts like a low sulphidic ore in an oxidizing environment, and could generate acid drainages. Human and not human disturbances of the sediments could derive in its oxidation catalyzed by sulphur oxidizing bacteria (SOB). This process leads to acidification and metal release. In this study we analyze the acidification potential of anaerobic sediments of polluted streams near Buenos Aires with static and kinetic methods. The results remark the necessity to consider this process before any sediment management action.
Fil: Porzionato, Natalia Florencia. Universidad Nacional de San Martín. Instituto de Investigación E Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mellota, Mariangeles. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Candal, Roberto Jorge. Universidad Nacional de San Martín. Instituto de Investigación E Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Curutchet, Gustavo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad Nacional de San Martín; Argentina
description Sediments from polluted urban streams act as a sink of contaminants. The high content of organic matter and sulphides makes the system appropriate for binding heavy metals. However, changes in the redox potential leads to processes in which sediments acts like a low sulphidic ore in an oxidizing environment, and could generate acid drainages. Human and not human disturbances of the sediments could derive in its oxidation catalyzed by sulphur oxidizing bacteria (SOB). This process leads to acidification and metal release. In this study we analyze the acidification potential of anaerobic sediments of polluted streams near Buenos Aires with static and kinetic methods. The results remark the necessity to consider this process before any sediment management action.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/7887
Porzionato, Natalia Florencia; Mellota, Mariangeles; Candal, Roberto Jorge; Curutchet, Gustavo Andres; Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments; Trans Tech Publications; Advanced Materials Research; 825; 8-2013; 496-499
1662-8985
url http://hdl.handle.net/11336/7887
identifier_str_mv Porzionato, Natalia Florencia; Mellota, Mariangeles; Candal, Roberto Jorge; Curutchet, Gustavo Andres; Acid drainage and metal bioleaching by redox potencial changes in heavy polluted fluvial sediments; Trans Tech Publications; Advanced Materials Research; 825; 8-2013; 496-499
1662-8985
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.scientific.net/AMR.825.496
info:eu-repo/semantics/altIdentifier/doi/10.4028/www.scientific.net/AMR.825.496
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Trans Tech Publications
publisher.none.fl_str_mv Trans Tech Publications
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1847426826346954752
score 13.10058

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