Caractérisation physico-chimique et source de la minéralisation des eaux souterraines des départements de Daloa et Zoukougbeu, Côte d’Ivoire
| Autor: | Bintou Kone, Natchia Aka, Brou Dibi, Ibrahim Djabakate, Oi Adjiri Adjiri |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | International Journal of Biological and Chemical Sciences; Vol 13, No 4 (2019); 2388-2401 |
| ISSN: | 1991-8631 1997-342X |
| Popis: | Cette etude vise a faire la caracterisation hydrogeochimique et a identifier les facteurs de mineralisation des eaux souterraines. Pour y parvenir, 14 echantillons de sols et 17 echantillons d’eaux de sources et puits ont ete preleves dans 12 localites differentes. Ils ont ete conditionnes respectivement dans des sachets alimentaires et dans des bouteilles en PET de 1L. Ces dernieres ont ete conditionnees dans des glacieres a 4 ± 2 °C. Auparavant, les parametres temperature, pH, conductivite electrique, TDS et turbidite, des eaux ont ete mesures in situ. Les valeurs moyennes sont respectivement : 27,63 °C ; 4,81 ; 84,67 μS/cm ; 38,45 mg/L et 27,22 UTN. Les analyses physico-chimiques realisees sur les sols, indiquent un pH moyen de 4,84 et des concentrations moyennes de NO3-, NO2- et NH4+ respectives de 93,19 ; 0,20 et 0,54 ppm. Le dosage chimique des eaux a donne des teneurs moyennes de HCO3-, Cl-, NO3- et SO42- respectives de 10,73; 8,42; 8,05 et 5,31 mg/L et de Ca2+, Mg2+, K+ et Na+ respectives de 2,21; 1,03; 1,84 et 5,18 mg/L. Les simulations PHREEQC et diagramme indiquent un systeme ferme a l’atmosphere, des eaux sous-saturees par rapport aux carbonates et evaporites et donc, agressives et de temps de sejour court.© 2019 International Formulae Group. All rights reserved.Mots cles: Daloa, Zoukougbeu, parametres hydrogeochimiques, diagramme 5.0, mineralisation, PHREEQCEnglish Title: Physico-chemical characterization and source of groundwater mineralization of the Daloa and Zoukougbeu departments, Ivory CoastEnglish AbstractThis study aims to perform hydrogeochemical characterization and to identify groundwater mineralization factors. To achieve this, 14 soil samples and 17 spring and well water samples were collected from 12 different locations. They were packaged in food bags and in PET bottles of 1L respectively. The water samples were packaged in coolers at 4 ± 2 °C. Before, temperature, pH, electrical conductivity, TDS and turbidity of water were measured in situ. The average values were 27.63 °C; 4.81; 84.67 μS / cm; 38.45 mg / L and 27.22 NTU respectively. Physico-chemical analyzes of soils showed mean values of pH, NO3-, NO2- and NH4+ were 4.84, 93.19 ppm, 0.20 ppm and 0.54 ppm respectively. The chemical analyses of water showed that the concentrations of HCO3-, Cl-, NO3- and SO42- were 10.73; 8.42; 8.05 and 5.31 mg / L respectively and those of Ca2+, Mg2+, K+ and Na+ were 2.21; 1.03; 1.84 and 5.18 mg / L respectively. The PHREEQC and Diagram simulations indicated a closed system to the atmosphere and undersaturated water with respect to carbonates and evaporites. These characteristics indicate aggressive waters and short residence time.© 2019 International Formulae Group. All rights reserved.Keywords: Daloa, Zoukougbeu, hydrogeochemical parameters, diagramme 5.0, mineralization, PHREEQC |
| Databáze: | OpenAIRE |
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