Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil

ABSTRACT The geochemical processes that potentially control the chemical characteristics of the waters of three reservoirs located in the state of Sergipe, Northeastern Brazil, were evaluated using the Gibbs diagram, correlation analysis, ionic ratios and geochemical modeling. The results of the rev...

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Main Authors: José do Patrocinio Hora Alves, Maria Hortência Rodrigues Lima, Josefa Raimunda Dória, Igor Santos Silva, Adnivia Santos Costa Monteiro
Format: Article
Language:English
Published: Associação Brasileira de Recursos Hídricos 2021-07-01
Series:Revista Brasileira de Recursos Hídricos
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312021000100220&tlng=en
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author José do Patrocinio Hora Alves
Maria Hortência Rodrigues Lima
Josefa Raimunda Dória
Igor Santos Silva
Adnivia Santos Costa Monteiro
author_facet José do Patrocinio Hora Alves
Maria Hortência Rodrigues Lima
Josefa Raimunda Dória
Igor Santos Silva
Adnivia Santos Costa Monteiro
author_sort José do Patrocinio Hora Alves
collection DOAJ
description ABSTRACT The geochemical processes that potentially control the chemical characteristics of the waters of three reservoirs located in the state of Sergipe, Northeastern Brazil, were evaluated using the Gibbs diagram, correlation analysis, ionic ratios and geochemical modeling. The results of the reverse geochemical modeling applied between two water samples from each reservoir were in agreement with the observations of the correlation analysis and ionic ratios, which indicated sea salt dissolution, silicate weathering and, to a lesser extent, carbonate dissolution, as the main geochemical processes responsible for the chemical characteristics of the waters of the three reservoirs, also confirming the importance of ion exchange for the Macela and Ribeirópolis reservoirs. These findings therefore suggest that the growing salinization process of the reservoirs is mainly controlled by water-rock interactions and may also be influenced by contributions from evaporation and anthropogenic inputs.
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spelling doaj.art-1cd24549ded44f069042fc52644c27222022-12-21T19:21:43ZengAssociação Brasileira de Recursos HídricosRevista Brasileira de Recursos Hídricos2318-03312021-07-012610.1590/2318-0331.262120210043Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern BrazilJosé do Patrocinio Hora Alveshttps://orcid.org/0000-0001-9752-5935Maria Hortência Rodrigues Limahttps://orcid.org/0000-0002-7866-737XJosefa Raimunda Dóriahttps://orcid.org/0000-0003-1998-3054Igor Santos Silvahttps://orcid.org/0000-0001-9322-6735Adnivia Santos Costa Monteirohttps://orcid.org/0000-0002-7139-898XABSTRACT The geochemical processes that potentially control the chemical characteristics of the waters of three reservoirs located in the state of Sergipe, Northeastern Brazil, were evaluated using the Gibbs diagram, correlation analysis, ionic ratios and geochemical modeling. The results of the reverse geochemical modeling applied between two water samples from each reservoir were in agreement with the observations of the correlation analysis and ionic ratios, which indicated sea salt dissolution, silicate weathering and, to a lesser extent, carbonate dissolution, as the main geochemical processes responsible for the chemical characteristics of the waters of the three reservoirs, also confirming the importance of ion exchange for the Macela and Ribeirópolis reservoirs. These findings therefore suggest that the growing salinization process of the reservoirs is mainly controlled by water-rock interactions and may also be influenced by contributions from evaporation and anthropogenic inputs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312021000100220&tlng=enMultivariate analysisHydrogeochemistryWater-rock interactionsGeochemical modelingPHREEQC
spellingShingle José do Patrocinio Hora Alves
Maria Hortência Rodrigues Lima
Josefa Raimunda Dória
Igor Santos Silva
Adnivia Santos Costa Monteiro
Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil
Revista Brasileira de Recursos Hídricos
Multivariate analysis
Hydrogeochemistry
Water-rock interactions
Geochemical modeling
PHREEQC
title Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil
title_full Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil
title_fullStr Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil
title_full_unstemmed Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil
title_short Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil
title_sort hydrogeochemical characterization of reservoir waters undergoing salinization processes in northeastern brazil
topic Multivariate analysis
Hydrogeochemistry
Water-rock interactions
Geochemical modeling
PHREEQC
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312021000100220&tlng=en
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