Hydrogeochemical characterization of reservoir waters undergoing salinization processes in Northeastern Brazil

IF 0.9 Q4 WATER RESOURCES
J. Alves, Maria Hortência Rodrigues Lima, Josefa Raimunda Dória, Igor Santos Silva, A. Monteiro
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引用次数: 4

Abstract

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.
巴西东北部经历盐渍化过程的水库水的水文地球化学特征
摘要采用Gibbs图、相关分析、离子比和地球化学模型对巴西东北部Sergipe州3个储层水体化学特征的地球化学过程进行了评价。对每个储层的两个水样进行的反向地球化学模拟结果与相关分析和离子比的观察结果一致,表明海盐溶解、硅酸盐风化以及较小程度上的碳酸盐溶解是三个储层水化学特征的主要地球化学过程。也证实了离子交换对Macela和Ribeirópolis水库的重要性。因此,这些发现表明,水库的盐渍化过程主要受水岩相互作用的控制,也可能受到蒸发和人为输入的影响。
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来源期刊
CiteScore
1.60
自引率
12.50%
发文量
18
审稿时长
16 weeks
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