Caracterisation Physico-Chimique Des Eaux Souterraines (original) (raw)
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Caracterisation Physico-Chimique Des Eaux Du Bassin Hydrographique Cotier Algerois
The objective of our work is to assess the quality of the dam Foum El-Khanga (east of Algéria) monthly during the year 2014. This study planned to make a physico-chemical characterization to highlight several parameters which come into play the determination of the quality of this water such as: temperature; pH; conductivity; turbidity; dissolved oxygen; title hydrotimetric; calcium; magnesium; title alcalimetric complet; nitrate; nitrite; ammoniacal nitrogen; sulfate; chloride; bicarbonate; phosphate; iron; biological oxygen demand (BOD) and chemical oxygen demands (COD). The results of physico-chemical analysis show that the water of this dam is characterized by a significant mineralization as indicated by high values of electrical conductivity and chloride. The results of principal component analysis (PCA) clearly showed a stronger relation between the hot season and temperature. However, the cold season was strongly correlated with mineralization and pollution parameters.
Agriculture and livestock are the main socioeconomic activities of the population of the Zinder region (Niger). However, these activities have negative impacts on groundwater quality, which is the main source of water supply for this population. In this work, the physicochemical quality of the waters of the Socle of the Zinder region was studied during the rainy and dry seasons. Twenty-four samples were the subject of a physico-chemical analysis. The data obtained were processed by the hydrochemical method by the Diagram software and the principal component analysis by the XLSTAT (42%) during the rainy season, calci-magnesian bicarbonate (41.7%) and calci-magnesium chloride (41.7%) during the dry season. The residence time by hydrolysis and alteration of silicate rocks and the pluviolessivage of soils are the main mechanisms that govern the mineralization of these waters. These grades, call for remediation treatments. Clays could be promoters for this treatment because they are very available and less expensive.
E ´ tude et caracte ´risation physico-chimique des eaux de l’oued Soummam (Alge ´rie)
Vous trouverez ci-après le tiré à part de votre article en format électronique (pdf) : Étude et caractérisation physico-chimique des eaux de l'oued Soummam (Algérie) paru dans Sécheresse, 2009, Volume 20, Numéro 4 John Libbey Eurotext Ce tiré à part numérique vous est délivré pour votre propre usage et ne peut être transmis à des tiers qu'à des fins de recherches personnelles ou scientifiques. En aucun cas, il ne doit faire l'objet d'une distribution ou d'une utilisation promotionnelle, commerciale ou publicitaire. Tous droits de reproduction, d'adaptation, de traduction et de diffusion réservés pour tous pays. Tirés à part : L. Mouni
The surface water resources of Divo’s department are subjected to strong anthropic pressures caused by the development. With this intention, this study was initiated to determine the physicochemical characteristics of water of the department and those located near the sites mines. To this end, thirteen physicochemical parameters were studied. These are the major ions (Ca2+, Mg2+, Na +, K +, Cl-, SO42-, HCO3-), pH, Eh, temperature, turbidity, electrical conductivity (EC) and NO3-. The analyzed ions and the field parameters were compared with the standards raw water. The results were treated on the one hand using the hydrochemic method (diagram of piper) to determine the typology of water and on the other hand using the multivariate statistical analysis (Normed Principal component Analysis (NPCA) to underline the origin of the mineralization of water. The results show that most of the waters are close to neutrality. The nitrate concentrations are sometimes high, they have as a maximum value 164.8 mg/l. water is moderately mineralized with an average conductivity of 608.4 µS/cm. water near the mining sites is the most mineralized. This water is strongly characterized by a hydrofacies of the calcic and magnesian chlorinated type. The phenomena behind the mineralization of water of Divo are mainly linked to agriculture and urban rejections. This study enabled us to characterize the physicochemical parameters of surface water of the department. A more detailed study must be carried out in order to characterize precisely the origin of the mineralization of water.
LARHYSS Journal, 2015
This paper is about groundwater’s quality in Ghassira which is located in El-Abiod valley in eastern Algeria. The water is used for human consumption and irrigation. The different layers belong to several types of rocks (limestone and evaporate ...). To study the behaviour of dissolved salts in this water, we have used geology of the aquifers and statistics. This combination gives us information about minerals those are responsible of water’s quality. 80% of analyzed samples are influenced by evaporate rocks (gypsum, halite…) and 20% by limestone. Many processes have generated these two classes and are relating, especially, with the rocks of aquifers.
The aim behind this study is to determine the quality of the groundwater surrounding the landfill that has taken place in MohammediaBenslimane since 2012. It is a matter of seven wells dedicated to irrigation and/or daily use. The results obtained are compared to Moroccan standards and clearly show that the chlorides levels are abnormally high amongst all the wells (158.2 to 845.6 mg/L) and go well beyond the irrigation’s standards (105 mg/L). The chemical oxygen demand (COD) varies between (34.6 and 67.2 mg O2/L) in five of the wells: values that exceed the allowed drinking water’s value (25 mg O2/L). The recorded concentrations of the Cu, Fe, Mn, Zn and the Ni are well aligned with the standards of irrigation and drinking water quality. However, the Pb levels, which exceed the standards of potability (0.05 mg/L) range from (0.07 and 0.14 mg/L). The highest chromium concentrations were recorded in three of the wells upstream from the landfill and a single one amongst the ones located downstream. Even though the Cadmium levels are aligned with the standards of potability and irrigation in six of the wells, it remains exceeding the standards of the drinking water quality by (0.001 mg/L). As a conclusion, the overall quality of the studied groundwater would probably be linked to the human activities on the surroundings, as well as to the nature of the ground crossed by the stormwater not to the landfill.
Caracterisation Physico-Chimique Des Eaux Du Barrage Foum El-Khanga (Region De Souk-Ahras, Algerie)
The objective of our work is to assess the quality of the dam Foum El-Khanga (east of Algéria) monthly during the year 2014. This study planned to make a physico-chemical characterization to highlight several parameters which come into play the determination of the quality of this water such as: temperature; biological oxygen demand (BOD) and chemical oxygen demands (COD). The results of physico-chemical analysis show that the water of this dam is characterized by a significant mineralization as indicated by high values of electrical conductivity and chloride. The results of principal component analysis (PCA) clearly showed a stronger relation between the hot season and temperature. However, the cold season was strongly correlated with mineralization and pollution parameters.