Study of the Hydrochemical Characterization of Drinking Water from the Aquifer of the Town of Guitté at Hadjer Lamis
Mahamat Nour Abdallah *
University of N’Djamena, Laboratoire Hydro-Géosciences et Réservoirs, N’Djamena, Chad.
Ahmat Brahim Moursal
University of N’Djamena, Laboratoire Hydro-Géosciences et Réservoirs, N’Djamena, Chad.
Mahamat Adoum Abdraman
Département de Science Technique, University of N’Djamena, N’Djamena, Chad.
Abderamane Hamit
University of N’Djamena, Laboratoire Hydro-Géosciences et Réservoirs, N’Djamena, Chad.
*Author to whom correspondence should be addressed.
Abstract
A hydrogeological study was carried out in and around Guitté. This study aims to contribute to the understanding of the hydrochemical parameters of the waters of the Guitté aquifer. with a view to the sound and sustainable management of available water resources. A field mission to measure and sample borehole water was carried out from March 26 to 28. 2023 in and around Guitté. Physicochemical analyses were carried out on 28 water samples from human-driven pumps). The study showed that the groundwater exploited in this area has an average temperature of 29°C. Overall. the pH values measured in the sampled waters are not very heterogeneous and are around neutral. Electrical conductivity values are highly heterogeneous. Two types of chemical facies have been identified in Guitté groundwater: sodium or potassium bicarbonate facies. and calcium and magnesium bicarbonate facies. The overall quality of the groundwater obtained for consumption is 60.71% rated as good. 39.28% as poor. The origin of the mineralization could be linked. on the one hand. to water/rock contact. due to the dissolution of natron. limestone. gypsum and thenardite and on the other hand. to the phenomenon of intense evaporation.
Keywords: Hydrogeochemical, chemical facies, water quality, aquifer and guitté