QUANTITATIVE EVALUATION AND HYDROGEOCHEMICAL PROPERTIES OF GROUNDWATERS FROM PRECAMBRIAN ROCKS OF SAN PEDRO AREA (SOUTHWESTERN CÔTE D’IVOIRE)
Journal Title: Larhyss Journal - Year 2015, Vol 23, Issue 23
Abstract
San Pedro area covers 6,912 km2 at southwestern Côte d’Ivoire. Its rural population returns to use surface waters for domestic and agricultural needs because of many drillings previously established were damaged. This study aims to contribute best knowledge of quantity and quality groundwater from basement aquifers of this area. Database includes monthly temperatures, rainfalls, outflows and groundwater samples. The calculation of pluviometrical indexes through reduced centered data led to identify climate variability. Recharge of aquifers was calculated by hydrological balance following Thornthwaithe and GR2M methods. Hydrogeochemical properties were determined through the calculation of ions exchange indexes and chemical classification with Korjinski and Riverside diagrams. During last three decades (1977-2007), climate variability presented consecutively humid, dry and humid periods. Aquifers recharge was evaluated to 701 m3/ hectare and 1008 m3/ hectare respectively through Thornthwaite and GR2M methods. Surface and groundwater levels are influenced by climate variability. Groundwaters are healthy for drinking water and agricultural irrigation. Hydrolysis of primary silicate minerals is the major process of groundwater mineralization. Groundwaters develop stability with kaolinite. During interaction between groundwater and surrounding-rocks, waters exchange their ions Mg2+ and Ca2+.
Authors and Affiliations
DE LASME O. Z. | Department of Geosciences, Faculty of Biological Sciences, University Pelefero Gon Coulibaly of Korhogo, BP 1328 Korhogo, Côte d’Ivoire, YOUAN TA M. | Department of Technical Sciences of Water and Environmental Engineering, Faculty of Earth Sciences and Mining Resources, University Felix Houphouet-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire, BAKA D. | Department of Technical Sciences of Water and Environmental Engineering, Faculty of Earth Sciences and Mining Resources, University Felix Houphouet-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire, ADOPO K. L. | Department of Technical Sciences of Water and Environmental Engineering, Faculty of Earth Sciences and Mining Resources, University Felix Houphouet-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire, LASM T. | Department of Technical Sciences of Water and Environmental Engineering, Faculty of Earth Sciences and Mining Resources, University Felix Houphouet-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire, OGA M. S. | Department of Marine Geology and Sedimentology, Faculty of Earth Sciences and Mining Resources, University Felix Houphouet-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire
Keywords
Related Articles
- EP ID EP15163
- DOI -
- Views 356
- Downloads 13
APPROCHE MULTICRITERE POUR L’ETUDE DE LA GENESE DES NAPPES D’EAUX SALEES, JEFFARA NORD (S-E TUNISIE)
A multi-disciplinary study comprising boreholes, geophysical and geochemical analyses are used to outline a conceptual hydrogeochemical model of northern Jeffara groundwater, largely influenced by tectonic. The study o...
THE USE OF A NEURAL NETWORK TECHNIQUE FOR THE PREDICTION OF SLUDGE VOLUME INDEX IN MUNICIPAL WASTEWATER TREATMENT PLANT
Modeling Sludge volume index of activated sludge process in municipal WWTP is a difficult task to accomplish due to the high nonlinearity of the plant and the non-uniformity and variability of influent quantity, qualit...
DIAGNOSTIC DE LA QUALITÉ DES EAUX PLUVIALES DES TOITURES EN VUE DE LEUR RÉUTILISATION PAYSAGÈRE: CAS D’UN ÉTABLISSEMENT D’ENSEIGNEMENT PUBLIC À CASABLANCA (MAROC)
This study enters in the use recoverable rainwater approach as an alternative water resource of drinking water Indeed, the collection and reuse of rainwater can help to fill the water deficit and relieves pressure on w...
GESTION DE L'EAU DANS LES PAYS ARABES
Les ressources naturelles des pays arabes sont insuffisantes pour leurs besoins mais la non matrise de la gestion et surtout des techniques d’irrigation a accentu le gaspillage de l’eau dont les consquences sur la...
MEAN DYNAMIC TOPOGRAPHY DETERMINATION OVER THE WESTERN MEDITERRANEAN SEA USING ALTIMETRY MEASUREMENTS AND GOCE GRAVITY MODEL
The ocean surface must be surveyed in order to determine the dynamic topography, tides, time-variations etc… The Mean Ocean Dynamic Topography (MDT), which is the distance between the Geoid and the Mean Sea Surface H...