Groundwater salinization in a coastal multilayer aquifer: Preliminary results on origins and mechanisms. Example of Recife (Brazil)

Lise Cary (1) , Emmanuelle Petelet-Giraud (1) , Suzana Maria Gico Lima Montenegro (2) , Ricardo Hirata (3) , Veridiana Martins (3) , Axel Aurouet (4) , Hélène Pauwels (1) , Wolfram Kloppmann (1) , Luc Aquilina (5)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 Departamento de Engenharia Civil
3 USP - Universidade de São Paulo = University of São Paulo
4 Société GéoHyd
5 GR - Géosciences Rennes

The Recife Metropolitan Region (PE, Brazil) appears as a typical "hot spot" illustrating the problems of southern countries such as urbanization or rapid industrial and touristic development. All these factors induce high pressures on water resources both on quantity and quality in the context of global social and environmental changes. This paper focuses on the groundwater geochemistry in a costal multilayer aquifer aiming at investigating the sources and processes of salinization. The preliminary results of 62 groundwater samples from the five main aquifers are reported.

Mots clés: salinization; groundwater; mechamisms; Recife; Brazil

Domaines: Planète et Univers [physics]; Sciences de la Terre; Géochimie; Sciences de l'environnement; Milieux et Changements globaux

Lise Cary, Emmanuelle Petelet-Giraud, Suzana Maria Gico Lima Montenegro, Ricardo Hirata, Veridiana Martins, et al.. Groundwater salinization in a coastal multilayer aquifer: Preliminary results on origins and mechanisms. Example of Recife (Brazil). 14th International Symposium on Water-Rock Interaction, WRI 14, Jun 2013, Avignon, France. pp.118-122, ⟨10.1016/j.proeps.2013.03.164⟩. ⟨hal-00772976⟩