Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"

Autores
Areco, María del Mar; Haug, Erika; Curutchet, Gustavo Andres
Año de publicación
2023
Idioma
inglés
Tipo de recurso
conjunto de datos
Estado
Descripción
In the present article the effects of Zn(II) on Botryococcus braunii in terms of growth and the photosynthesisrespiration metabolism and the ability of this microalgae to remove zinc present in wastewaters is described. The photosynthetic and respiration rates are affected by increasing metal concentration in solution, and therefore B. braunii growth rate decreases to a half, nevertheless the maximum value of biomass reached (770 ± 40 mg l−1) is the same and the biomass remains viable throughout the range of concentrations studied (0–80 mg l−1). B. braunii exposed the ability to reverse the acidic conditions of the medium, showing a pH increase from 5.2 till values above 8.0 favoring the precipitation of different zinc compounds. Zn(II) specific removal increases along with initial metal concentration. The net adsorption capacity was determined, and the Freundlich, Langmuir and Hill models were applied. The stoichiometric relationship between H+ release and zinc uptake in slightly acidic conditions is 1:1, and the adsorption kinetics follows a pseudo-second order model. The amount of metal removed increase when metabolic processes are involved. Removal of Zn with successive additions was achieved along 200 days, reaching a value of zinc removal of 3.4 g g−1. The remediation of heavy metals (zinc, nickel and copper) and nitrates present in a leachate obtained from a bioleaching process was successfully performed. The present work represents a new approach on the biotechnological potential of B. braunii to grow in acidic conditions and to remove zinc, while differentiates passive adsorption from metabolically active remediation.
Fil: Areco, María del Mar. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina
Fil: Haug, Erika. Universidad Nacional de San Martín. Instituto de Investigación en Ingeniería Ambiental; Argentina
Fil: Curutchet, Gustavo Andres. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina
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:11336/184867
Acceder
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spelling Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"Areco, María del MarHaug, ErikaCurutchet, Gustavo Andreshttps://purl.org/becyt/ford/2.8https://purl.org/becyt/ford/2In the present article the effects of Zn(II) on Botryococcus braunii in terms of growth and the photosynthesisrespiration metabolism and the ability of this microalgae to remove zinc present in wastewaters is described. The photosynthetic and respiration rates are affected by increasing metal concentration in solution, and therefore B. braunii growth rate decreases to a half, nevertheless the maximum value of biomass reached (770 ± 40 mg l−1) is the same and the biomass remains viable throughout the range of concentrations studied (0–80 mg l−1). B. braunii exposed the ability to reverse the acidic conditions of the medium, showing a pH increase from 5.2 till values above 8.0 favoring the precipitation of different zinc compounds. Zn(II) specific removal increases along with initial metal concentration. The net adsorption capacity was determined, and the Freundlich, Langmuir and Hill models were applied. The stoichiometric relationship between H+ release and zinc uptake in slightly acidic conditions is 1:1, and the adsorption kinetics follows a pseudo-second order model. The amount of metal removed increase when metabolic processes are involved. Removal of Zn with successive additions was achieved along 200 days, reaching a value of zinc removal of 3.4 g g−1. The remediation of heavy metals (zinc, nickel and copper) and nitrates present in a leachate obtained from a bioleaching process was successfully performed. The present work represents a new approach on the biotechnological potential of B. braunii to grow in acidic conditions and to remove zinc, while differentiates passive adsorption from metabolically active remediation.Fil: Areco, María del Mar. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; ArgentinaFil: Haug, Erika. Universidad Nacional de San Martín. Instituto de Investigación en Ingeniería Ambiental; ArgentinaFil: Curutchet, Gustavo Andres. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina2023info:ar-repo/semantics/conjuntoDeDatosv1.0info:eu-repo/semantics/dataSetapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheethttp://hdl.handle.net/11336/184867Areco, María del Mar; Haug, Erika; Curutchet, Gustavo Andres; (2023): Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii". Consejo Nacional de Investigaciones Científicas y Técnicas. (dataset). http://hdl.handle.net/11336/184867CONICET DigitalCONICETenginfo:eu-repo/grantAgreement/Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Científica y Tecnológica/PICT 2014-2386info:eu-repo/grantAgreement/Consejo Nacional de Investigaciones Científicas y Técnicas/PICT 2014-2386info:eu-repo/grantAgreement//PICT 2014-2386info:eu-repo/grantAgreement//PICT 2014-2386info:eu-repo/grantAgreement//PICT 2014-2386info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:37Zoai:ri.conicet.gov.ar:11336/184867instacron: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 09:33:37.674CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
title Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
spellingShingle Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
Areco, María del Mar
title_short Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
title_full Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
title_fullStr Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
title_full_unstemmed Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
title_sort Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii"
dc.creator.none.fl_str_mv Areco, María del Mar
Haug, Erika
Curutchet, Gustavo Andres
author Areco, María del Mar
author_facet Areco, María del Mar
Haug, Erika
Curutchet, Gustavo Andres
author_role author
author2 Haug, Erika
Curutchet, Gustavo Andres
author2_role author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.8
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In the present article the effects of Zn(II) on Botryococcus braunii in terms of growth and the photosynthesisrespiration metabolism and the ability of this microalgae to remove zinc present in wastewaters is described. The photosynthetic and respiration rates are affected by increasing metal concentration in solution, and therefore B. braunii growth rate decreases to a half, nevertheless the maximum value of biomass reached (770 ± 40 mg l−1) is the same and the biomass remains viable throughout the range of concentrations studied (0–80 mg l−1). B. braunii exposed the ability to reverse the acidic conditions of the medium, showing a pH increase from 5.2 till values above 8.0 favoring the precipitation of different zinc compounds. Zn(II) specific removal increases along with initial metal concentration. The net adsorption capacity was determined, and the Freundlich, Langmuir and Hill models were applied. The stoichiometric relationship between H+ release and zinc uptake in slightly acidic conditions is 1:1, and the adsorption kinetics follows a pseudo-second order model. The amount of metal removed increase when metabolic processes are involved. Removal of Zn with successive additions was achieved along 200 days, reaching a value of zinc removal of 3.4 g g−1. The remediation of heavy metals (zinc, nickel and copper) and nitrates present in a leachate obtained from a bioleaching process was successfully performed. The present work represents a new approach on the biotechnological potential of B. braunii to grow in acidic conditions and to remove zinc, while differentiates passive adsorption from metabolically active remediation.
Fil: Areco, María del Mar. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina
Fil: Haug, Erika. Universidad Nacional de San Martín. Instituto de Investigación en Ingeniería Ambiental; Argentina
Fil: Curutchet, Gustavo Andres. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina
description In the present article the effects of Zn(II) on Botryococcus braunii in terms of growth and the photosynthesisrespiration metabolism and the ability of this microalgae to remove zinc present in wastewaters is described. The photosynthetic and respiration rates are affected by increasing metal concentration in solution, and therefore B. braunii growth rate decreases to a half, nevertheless the maximum value of biomass reached (770 ± 40 mg l−1) is the same and the biomass remains viable throughout the range of concentrations studied (0–80 mg l−1). B. braunii exposed the ability to reverse the acidic conditions of the medium, showing a pH increase from 5.2 till values above 8.0 favoring the precipitation of different zinc compounds. Zn(II) specific removal increases along with initial metal concentration. The net adsorption capacity was determined, and the Freundlich, Langmuir and Hill models were applied. The stoichiometric relationship between H+ release and zinc uptake in slightly acidic conditions is 1:1, and the adsorption kinetics follows a pseudo-second order model. The amount of metal removed increase when metabolic processes are involved. Removal of Zn with successive additions was achieved along 200 days, reaching a value of zinc removal of 3.4 g g−1. The remediation of heavy metals (zinc, nickel and copper) and nitrates present in a leachate obtained from a bioleaching process was successfully performed. The present work represents a new approach on the biotechnological potential of B. braunii to grow in acidic conditions and to remove zinc, while differentiates passive adsorption from metabolically active remediation.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:ar-repo/semantics/conjuntoDeDatos
v1.0
info:eu-repo/semantics/dataSet
format dataSet
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/184867
Areco, María del Mar; Haug, Erika; Curutchet, Gustavo Andres; (2023): Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii". Consejo Nacional de Investigaciones Científicas y Técnicas. (dataset). http://hdl.handle.net/11336/184867
CONICET Digital
CONICET
url http://hdl.handle.net/11336/184867
identifier_str_mv Areco, María del Mar; Haug, Erika; Curutchet, Gustavo Andres; (2023): Datos paper "Studies on bioremediation of Zn and acid waters using Botryococcus braunii". Consejo Nacional de Investigaciones Científicas y Técnicas. (dataset). http://hdl.handle.net/11336/184867
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/grantAgreement//PICT 2014-2386
info:eu-repo/grantAgreement//PICT 2014-2386
info:eu-repo/grantAgreement//PICT 2014-2386
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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