Contribution of multivariate statistical techniques in the hydrochemical evaluation of groundwater from the Ouargla phreatic aquifer in Algeria

Semar, Ahcène; Saibi, Hakim; Medjerab, Abderrahmane

doi:10.1007/s12517-012-0616-4

Cited by 22 publications

(12 citation statements)

References 15 publications

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“…The use of graphical methods such as the Stiff diagram to interpret aquatic chemistry is limited to two dimensions [15]. Factor analysis has been widely employed in several fields including petrography [17], geochemistry [18][19][20], and environmental geology [21,22]. Factor analysis has been widely employed in several fields including petrography [17], geochemistry [18][19][20], and environmental geology [21,22].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, factor analysis was found to effectively interpret the observed relationships among variables; to provide simpler relationships that offer insight into the underlying structure of the variables; and to evaluate controls on groundwater composition [16]. Factor analysis has been widely employed in several fields including petrography [17], geochemistry [18][19][20], and environmental geology [21,22]. For example, Lawrence and Upchurch (1983) used factor analysis to delineate the zones of natural recharge to groundwater in the Floridian aquifer [22].…”

Section: Introductionmentioning

confidence: 99%

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Statistical and analytical evaluation of groundwater quality in Al‐Rawdhatain field

Al‐Harbi

Al-Ruwaih

Alsulaili

2013

Env Prog and Sustain Energy

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In the arid and semi‐arid area, groundwater is a crucial source of water for agricultural and drinking purposes. This study examines the physicochemical parameters of Al‐Rawdhatain groundwater wells (18 wells) between 1990 and 2009. For drinking water purposes, analysis shows that pH falls within the safe limits and Mg2+ and K+ values for all tested wells fall within WHO's (2004) permissible limits. In contrast, there were some exceedances in dissolved anions and cations, and almost all the samples tested exceeded the desirable limit of electrical conductivity (EC) and total dissolved solids (TDS), for drinking water purposes. The suitability of water for irrigation purposes has been assessed and analysis showed that 55–60% of the groundwater wells are suitable for agricultural purposes according to sodium adsorption ratio (SAR), Kelly's ratio (KR), sodium percentage (Na%), permeability index (PI), and total hardness (TH) indices. The correlation coefficient matrix between the hydrochemical parameters was carried out using Pearson's correlation. Moderate‐strong correlation was observed among the major elements, Na+, Ca2+, Mg2+, Cl‐ and EC, which clearly identifies the main elements contributing to the groundwater salinity and their tendency to follow a similar trend. In this study, a factor model was developed and results showed that three major processes control the hydrochemistry of groundwater resources in the area: weathering processes, evaporation of minerals from sedimentary rocks, and salination. The Gibbs's diagrams support the factor analysis results. © 2013 American Institute of Chemical Engineers Environ Prog, 33: 895–904, 2014

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Statistical and analytical evaluation of groundwater quality in Al‐Rawdhatain field

Al‐Harbi

Al-Ruwaih

Alsulaili

2013

Env Prog and Sustain Energy

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“…The presence of a salt lake hydraulically connected to groundwater also changes the water salinity by reversing the flow to groundwater due to overexploitation of the latter [3]. This intrusion of water highly mineralized from a salt lake has been reported in other regions undergoing a semi-arid climate as in Algeria [4]. Temperature also has an important role in controlling the chemical and biological composition of a freshwater body [5,6].…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical and statistical characterization of groundwater in the Chemora area, Northeastern Algeria

Ghodbane

Boudoukha

Benaabidate

2015

Desalination and Water Treatment

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Tel. +213 0 5 55 83 20 05, Tel./Fax: +213 33 86 97 24, Tel. +213 0 5 51 59 37 47, Tel./Fax: +213 33 86 97 24 A B S T R A C TThis work aims to evaluate the hydrochemical characteristics of a shallow aquifer located between carbonated formations and salt lake in the Chemora region in northeastern Algeria. Hydrochemical, multivariate statistical, and the thermodynamics techniques were used to investigate the hydrochemical evolution within the aquifer. Twenty-five water samples were collected during May 2013 in this the aquifer wells. The results indicate that this shallow water is characterized by sulfate-dominant facies representing about 64% of cases, followed by the chloride with 24%, and the remaining (12%) is represented by the bicarbonate facies. The sulfate facies is acquired mainly by the alteration of pyrite. The saturation index showed that all carbonate minerals are supersaturated and all evaporate minerals are undersaturated which suggest that their soluble component Na + , Cl − , Ca 2+ , and SO 2À 4 concentrations are not limited by mineral equilibrium. The application of the cluster analysis and the principal components analysis based on major ion contents defined 3 main chemical water types reflecting different hydrochemical processes with salinity increases along the groundwater flow.

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“…Hussein used the factorial analysis to evaluate the chemistry of groundwater in the basin of the Blue Nile (Sudan). FA allows the identification of the possible factors/sources that influence water systems and reduce the dimensionality of a data set for reliable water resource management . FA is applied to determine hydrogeological and hydrochemical processes using groundwater samples [–5, .…”

Section: Introductionmentioning

confidence: 99%

“…These factors depend on natural environmental conditions, such as geology (lithology and tectonics) on the one hand and, on the other hand, such human actions on the environment as discharges of sewage or fertilizer. Multivariate statistical analysis is advantageous in relation to histogram techniques and line graphs and is a powerful tool for identifying sources .…”

Section: Introductionmentioning

confidence: 99%

Multiparameter cartographic assessment of the hydrochemical groundwater of the Soummam valley (Kabylia, Algeria)

Semar

Saibi

2014

Env Prog and Sustain Energy

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A hydrochemical survey based on an analysis of groundwater data was undertaken in the alluvial aquifer of the lower valley of Soummam (LVS). The LVS reservoir is characterized by a hydrogeologically heterogeneous lithology consisting of gravel, sand, and silt (with occasionally significant levels of clay). Numerous contacts and faults affect the region. Data were derived from a hydrochemical analysis of water by titration and spectrophotometry using 60 groundwater samples. Factor analysis with varimax rotation was applied to these data to reduce their size and to understand the nature of ion associations. The results of this analysis were used for Kriging mapping to pinpoint hydrochemical features of the study area. Four factors explaining ∼92% of the data variability were identified: one related to sodium–potassium (Na‐K), chloride (Cl), and magnesium (Mg); one related to nitrates (NO3); one related to bicarbonate (HCO3); and one related to calcium (Ca) and sulfate (SO4). © 2014 American Institute of Chemical Engineers Environ Prog, 33: 1357–1365, 2014

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Contribution of multivariate statistical techniques in the hydrochemical evaluation of groundwater from the Ouargla phreatic aquifer in Algeria

Cited by 22 publications

References 15 publications

Statistical and analytical evaluation of groundwater quality in Al‐Rawdhatain field

Statistical and analytical evaluation of groundwater quality in Al‐Rawdhatain field

Hydrochemical and statistical characterization of groundwater in the Chemora area, Northeastern Algeria

Multiparameter cartographic assessment of the hydrochemical groundwater of the Soummam valley (Kabylia, Algeria)

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