This paper presents results of an assessment of dominant hydro-geochemical processes controlling groundwater chemical composition, using an integrated application of cluster analysis and factor analysis. The area is located in south of saline playa and in Arak city. Clu More
This paper presents results of an assessment of dominant hydro-geochemical processes controlling groundwater chemical composition, using an integrated application of cluster analysis and factor analysis. The area is located in south of saline playa and in Arak city. Cluster analysis classified samples into two main clusters according to their dominant chemical composition: cluster A (dominant composition: Ca, Cl and SO4) and cluster B (dominant composition: Ca–HCO3). These clusters were in turn described by factor analysis. Results of factor analysis and geochemical interpretation suggest that spatial variation of groundwater quality in the area is influenced by different processes: Analyses revealed three major sources of variation in groundwater composition: carbonat and silicate mineral weathering, saltwater intrusion and anthropogenic contamination. Factor 1 shows processes of dissolution of C and SO4 evaporative salts (for samples close to Arak playa). Factor 2 exhibits strong positive correlation in Zn and Cu and show anthropogenic or industrial sources. Factor 3 exhibits HCO3 and NO3 and is resulted from weathering of carbonate and silicat minerals by percolating water and disposal of domestic wastes.
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Water is one the most important resource used by human in the daily life. Iran due to locating in the arid and semi-arid area has a limited water resource. Quality and quantity of water is important in various consumption among drinking, agricultural, industry and sanit More
Water is one the most important resource used by human in the daily life. Iran due to locating in the arid and semi-arid area has a limited water resource. Quality and quantity of water is important in various consumption among drinking, agricultural, industry and sanitation, therefor studying its quality seems essential from a hydrogeochemical viewpoint. In this study data of 38 samples of Gonbad Kavoos and its surrounding has used. The obtained hydrochemical data using graphical diagrams (Piper, Wilcox and scholler diagram) and multivariate statistical analysis (Principal components analysis and clustering analysis) interpreted along the Arc GIS software. Based on Piper diagram most of samples fallen in section 5 (mixing zone) and section 3 (sulfate-chloride and sodium-potassium (saline)). From Wilcox viewpoint (assessment of water quality for agriculture) samples related with west part of Gonbad Kavoos showed the moderate and bad quality. Most of samples related with western part of Gonbad Kavoos from scholler diagram viewpoint (investigation of water quality for drinking) were with inappropriate and completely unpleasant. Clustering analysis led to extraction of two cluster, two first cluster mainly located in eastern part of Gonbad plain with better quality rather than cluster 3 and 4. Cluster 3 and 4 in western part of plain having the worst quality. With regarding observed problems especially in western part of plain, it is recommended a detailed study to improving the management of quality and quantity of water resources in the villages located west part of Gonbad Kavoos.
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The main aim of this paper is the hydrochemical evaluation of groundwater and Its impact on the quality of groundwater resources in order to check its suitability for drinking and irrigation In Alut area located in northwestern Iran. Geologically, metamorphism rocks are More
The main aim of this paper is the hydrochemical evaluation of groundwater and Its impact on the quality of groundwater resources in order to check its suitability for drinking and irrigation In Alut area located in northwestern Iran. Geologically, metamorphism rocks are present in most parts of the Alut area for example Gneiss, Green schist, sericite schist, slate and metaryholite. In order to evaluation of groundwater quality and hydrochemical assesment, samples were taken from 50 wells and springs in the study area and the amount of heavy metals as well as its various parameters were measured. In the studied area, the groundwater facies belong to the calcic bicarbonate type and generally hard water due to the total hardness. In terms of EC and sodium adsorption ratio (SAR), Na% and residual sodium carbonate (RSC), the groundwater is totally suitable for irrigation. Moreover, dissolved heavy elements concentrations in the groundwater of the Alut area have the safe limits which recommended by the WHO. Based on the ionic ratios, Gibbs diagram, saturation index and multivariate analysis indicate that silicate sources had a relatively large impact on water chemistry in the Alut area. These calculations also showed that the groundwater source in the Alut area generally originated from weathering and interactions between silicate water and rock. Based on these studies, ground waters in Alut area are suitable for drinking, irrigation and agriculture and are chemically of a calcium bicarbonate type, and hard. Statistical studies show similar results between factor analysis and cluster analysis.
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Hashtrood region is located in the southwest of East Azerbaijan province. The main source of drinking water through underground water supply residents there. In order to evaluate groundwater quality, water resources, including 9 throat of deep wells to a depth of 70 to More
Hashtrood region is located in the southwest of East Azerbaijan province. The main source of drinking water through underground water supply residents there. In order to evaluate groundwater quality, water resources, including 9 throat of deep wells to a depth of 70 to 90 meters in two periods (wet and dry) in compliance with the required standards were sampled for chemical analysis were transferred to specialized laboratories. Data obtained from this evaluation for the purpose of processing and interpretation of the sign were to Rock Works and Geochemistry software’s. In this research, piper diagrams have been used to determine the type and geochemical facies of groundwater. To study and evaluate water for industrial use, the Langelier index has been used in which the criterion of water scaled and corrosive is considered. According to Schuler diagram, the water samples of this area are in the acceptable water range, which indicates that the water quality of the area is desirable for drinking purposes.The water quality of the area for industrial use is in the corrosive category in most samples .Samples of groundwater from Hashtrood city has high hardness ,which is usually influenced by the deceleration of Ca and Mg that there is often bicarbonate ion and chloride sulfate in the water.The corrosive nature of the water in the area leads to the pert of water in the urban supply system, which will cause health problems and material damage
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