The influence of two thermophilic consortia on troilite (FeS) dissolution

Autores
Giaveno Filippa, Maria Alejandra; Pettinari, Gisela Roxana; Gonzalez Toril, Elena; Aguilera, A.; Urbieta, María Sofía; Donati, Edgardo Ruben
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Dissolution of a natural troilite by thermophilic consortia collected from two hot springs placed in Copahue geothermal region (Neuquen - Argentina) and later enriched in specific media for sulphur-oxidisers is reported in this paper. The enrichment was carried out at a temperature (65 °C) far away from those measured in the original hot springs (40.5 °C and 87 °C) in order to analyse the flexibility of the consortia to keep viability under other temperature conditions. Different microscopic techniques (SEM, TEM, fluorescence microscopy) allowed the partial characterisation of the cultures used as inocula in the bioleaching experiments. Results show that, as other metal sulphides, troilite dissolution can be strongly catalysed by sulphur (and iron) wild oxidising microorganisms present in the consortia from Copahue hot springs. According to our results, the addition of sulphur increased the bioleaching rate although the troilite dissolution is not limited by such addition because sulphur is in situ generated by chemical oxidation. Iron solubilised from troilite was partially precipitated mainly as jarosite. An additional and interesting result of our studies indicates that natural consortia can have a wide thermal flexibility and there are some strains among them - especially archaeas from Sulfolobales genus - that are able to survive at temperatures far away from the ones registered in the place where they were collected. © 2010 Elsevier B.V.
Fil: Giaveno Filippa, Maria Alejandra. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gonzalez Toril, Elena. Consejo Superior de Investigaciones Cientificas. Instituto Nacional de Tecnica Aeroespacial.; España
Fil: Aguilera, A.. Consejo Superior de Investigaciones Cientificas. Instituto Nacional de Tecnica Aeroespacial.; España
Fil: Urbieta, María Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; Argentina
Fil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; Argentina
Materia
CONSORTIA
DISSOLUTION
THERMOPHILES
TROILITE
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:11336/144105
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The influence of two thermophilic consortia on troilite (FeS) dissolutionGiaveno Filippa, Maria AlejandraPettinari, Gisela RoxanaGonzalez Toril, ElenaAguilera, A.Urbieta, María SofíaDonati, Edgardo RubenCONSORTIADISSOLUTIONTHERMOPHILESTROILITEhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2Dissolution of a natural troilite by thermophilic consortia collected from two hot springs placed in Copahue geothermal region (Neuquen - Argentina) and later enriched in specific media for sulphur-oxidisers is reported in this paper. The enrichment was carried out at a temperature (65 °C) far away from those measured in the original hot springs (40.5 °C and 87 °C) in order to analyse the flexibility of the consortia to keep viability under other temperature conditions. Different microscopic techniques (SEM, TEM, fluorescence microscopy) allowed the partial characterisation of the cultures used as inocula in the bioleaching experiments. Results show that, as other metal sulphides, troilite dissolution can be strongly catalysed by sulphur (and iron) wild oxidising microorganisms present in the consortia from Copahue hot springs. According to our results, the addition of sulphur increased the bioleaching rate although the troilite dissolution is not limited by such addition because sulphur is in situ generated by chemical oxidation. Iron solubilised from troilite was partially precipitated mainly as jarosite. An additional and interesting result of our studies indicates that natural consortia can have a wide thermal flexibility and there are some strains among them - especially archaeas from Sulfolobales genus - that are able to survive at temperatures far away from the ones registered in the place where they were collected. © 2010 Elsevier B.V.Fil: Giaveno Filippa, Maria Alejandra. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gonzalez Toril, Elena. Consejo Superior de Investigaciones Cientificas. Instituto Nacional de Tecnica Aeroespacial.; EspañaFil: Aguilera, A.. Consejo Superior de Investigaciones Cientificas. Instituto Nacional de Tecnica Aeroespacial.; EspañaFil: Urbieta, María Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; ArgentinaFil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; ArgentinaElsevier Science2011-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/144105Giaveno Filippa, Maria Alejandra; Pettinari, Gisela Roxana; Gonzalez Toril, Elena; Aguilera, A.; Urbieta, María Sofía; et al.; The influence of two thermophilic consortia on troilite (FeS) dissolution; Elsevier Science; Hydrometallurgy (amsterdam); 106; 1-2; 2-2011; 19-250304-386XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.hydromet.2010.11.015info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304386X10003099?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:01:52Zoai:ri.conicet.gov.ar:11336/144105instacron: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:34982025-09-29 10:01:52.923CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The influence of two thermophilic consortia on troilite (FeS) dissolution
title The influence of two thermophilic consortia on troilite (FeS) dissolution
spellingShingle The influence of two thermophilic consortia on troilite (FeS) dissolution
Giaveno Filippa, Maria Alejandra
CONSORTIA
DISSOLUTION
THERMOPHILES
TROILITE
title_short The influence of two thermophilic consortia on troilite (FeS) dissolution
title_full The influence of two thermophilic consortia on troilite (FeS) dissolution
title_fullStr The influence of two thermophilic consortia on troilite (FeS) dissolution
title_full_unstemmed The influence of two thermophilic consortia on troilite (FeS) dissolution
title_sort The influence of two thermophilic consortia on troilite (FeS) dissolution
dc.creator.none.fl_str_mv Giaveno Filippa, Maria Alejandra
Pettinari, Gisela Roxana
Gonzalez Toril, Elena
Aguilera, A.
Urbieta, María Sofía
Donati, Edgardo Ruben
author Giaveno Filippa, Maria Alejandra
author_facet Giaveno Filippa, Maria Alejandra
Pettinari, Gisela Roxana
Gonzalez Toril, Elena
Aguilera, A.
Urbieta, María Sofía
Donati, Edgardo Ruben
author_role author
author2 Pettinari, Gisela Roxana
Gonzalez Toril, Elena
Aguilera, A.
Urbieta, María Sofía
Donati, Edgardo Ruben
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CONSORTIA
DISSOLUTION
THERMOPHILES
TROILITE
topic CONSORTIA
DISSOLUTION
THERMOPHILES
TROILITE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Dissolution of a natural troilite by thermophilic consortia collected from two hot springs placed in Copahue geothermal region (Neuquen - Argentina) and later enriched in specific media for sulphur-oxidisers is reported in this paper. The enrichment was carried out at a temperature (65 °C) far away from those measured in the original hot springs (40.5 °C and 87 °C) in order to analyse the flexibility of the consortia to keep viability under other temperature conditions. Different microscopic techniques (SEM, TEM, fluorescence microscopy) allowed the partial characterisation of the cultures used as inocula in the bioleaching experiments. Results show that, as other metal sulphides, troilite dissolution can be strongly catalysed by sulphur (and iron) wild oxidising microorganisms present in the consortia from Copahue hot springs. According to our results, the addition of sulphur increased the bioleaching rate although the troilite dissolution is not limited by such addition because sulphur is in situ generated by chemical oxidation. Iron solubilised from troilite was partially precipitated mainly as jarosite. An additional and interesting result of our studies indicates that natural consortia can have a wide thermal flexibility and there are some strains among them - especially archaeas from Sulfolobales genus - that are able to survive at temperatures far away from the ones registered in the place where they were collected. © 2010 Elsevier B.V.
Fil: Giaveno Filippa, Maria Alejandra. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gonzalez Toril, Elena. Consejo Superior de Investigaciones Cientificas. Instituto Nacional de Tecnica Aeroespacial.; España
Fil: Aguilera, A.. Consejo Superior de Investigaciones Cientificas. Instituto Nacional de Tecnica Aeroespacial.; España
Fil: Urbieta, María Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; Argentina
Fil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; Argentina
description Dissolution of a natural troilite by thermophilic consortia collected from two hot springs placed in Copahue geothermal region (Neuquen - Argentina) and later enriched in specific media for sulphur-oxidisers is reported in this paper. The enrichment was carried out at a temperature (65 °C) far away from those measured in the original hot springs (40.5 °C and 87 °C) in order to analyse the flexibility of the consortia to keep viability under other temperature conditions. Different microscopic techniques (SEM, TEM, fluorescence microscopy) allowed the partial characterisation of the cultures used as inocula in the bioleaching experiments. Results show that, as other metal sulphides, troilite dissolution can be strongly catalysed by sulphur (and iron) wild oxidising microorganisms present in the consortia from Copahue hot springs. According to our results, the addition of sulphur increased the bioleaching rate although the troilite dissolution is not limited by such addition because sulphur is in situ generated by chemical oxidation. Iron solubilised from troilite was partially precipitated mainly as jarosite. An additional and interesting result of our studies indicates that natural consortia can have a wide thermal flexibility and there are some strains among them - especially archaeas from Sulfolobales genus - that are able to survive at temperatures far away from the ones registered in the place where they were collected. © 2010 Elsevier B.V.
publishDate 2011
dc.date.none.fl_str_mv 2011-02
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/11336/144105
Giaveno Filippa, Maria Alejandra; Pettinari, Gisela Roxana; Gonzalez Toril, Elena; Aguilera, A.; Urbieta, María Sofía; et al.; The influence of two thermophilic consortia on troilite (FeS) dissolution; Elsevier Science; Hydrometallurgy (amsterdam); 106; 1-2; 2-2011; 19-25
0304-386X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/144105
identifier_str_mv Giaveno Filippa, Maria Alejandra; Pettinari, Gisela Roxana; Gonzalez Toril, Elena; Aguilera, A.; Urbieta, María Sofía; et al.; The influence of two thermophilic consortia on troilite (FeS) dissolution; Elsevier Science; Hydrometallurgy (amsterdam); 106; 1-2; 2-2011; 19-25
0304-386X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.hydromet.2010.11.015
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304386X10003099?via%3Dihub
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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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
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