Modeling of hydrochemistry evolution in carbonatic–siliciclastic aquifer system in coastal environment

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorTeramoto, Elias Hideo-
Autor(es): dc.creatorStradioto, Marcia Regina-
Autor(es): dc.creatorChang, Hung Kiang-
Data de aceite: dc.date.accessioned2025-08-21T20:44:05Z-
Data de disponibilização: dc.date.available2025-08-21T20:44:05Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2021-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s12665-021-09784-3-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233325-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233325-
Descrição: dc.descriptionCoastal regions are quite populous, causing coastal aquifers to be overexploited, due to which contamination of these aquifers is observed. The municipality of Belém, located on the eastern edge of the Amazon Forest, is severely deficient with respect to sanitation services, resulting in contamination by domestic wastewater becoming a widespread problem. Furthermore, groundwater overexploitation induces the migration of the saline wedge into the continent. To evaluate the natural and anthropic processes controlling the water quality, we conducted a large-scale (152 samples) hydrochemical analysis, stable isotope analysis, 14C dating of the Belém region. We also performed geochemical simulations to assess the mass balance of the identified process governing the water hydrochemistry. We found that the groundwater of the studied area may be classified into eight groups (based on hydrochemistry and sampled aquifer) or five hydrochemical clusters (solely as per hydrochemical affinity). The natural composition of siliciclastic aquifers Post-Barreiras and Barreiras (Cluster 1) is less mineralized, closely resembling rainwater, composed by recent groundwater recharge. In urban areas of Belém, nitrate contamination is quite significant (Cluster 2), while some samples present noticeable salinization induced by excessive groundwater pumping (Cluster 3). The TDS of deep samples of Barreiras and Pirabas (Clusters 4 and 5) increase as depth and groundwater age increases by the dissolution of calcite, dolomite, and pyrite. Our results allowed us to characterize the natural composition of the water and to measure the intense process deterioration of the water quality of the shallow aquifers.-
Descrição: dc.descriptionCenter for Environmental Studies and Basin Studies Laboratory São Paulo State University UNESP-
Descrição: dc.descriptionDepartment of Applied Geology and Basin Studies Laboratory São Paulo State University UNESP-
Descrição: dc.descriptionCenter for Environmental Studies and Basin Studies Laboratory São Paulo State University UNESP-
Descrição: dc.descriptionDepartment of Applied Geology and Basin Studies Laboratory São Paulo State University UNESP-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Earth Sciences-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBarreiras aquifer-
Palavras-chave: dc.subjectCoastal aquifers-
Palavras-chave: dc.subjectGeochemical modeling-
Palavras-chave: dc.subjectPirabas aquifer-
Palavras-chave: dc.subjectSaline intrusion-
Título: dc.titleModeling of hydrochemistry evolution in carbonatic–siliciclastic aquifer system in coastal environment-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.