Investigation of Hydro Geochemical Changes in Groundwater Case Study: Hamedan-Bahar Plain
Subject Areas :
Sajad
Fazel Tavasol
1
(PhD in Groundwater Orientation, Dezab Consulting Engineering Company)
Ali
Ahmadi
2
(Groundwater majors, Dezab Consulting Engineering Company)
Mostafa
Safari Komil
3
(Master of Geology, Groundwater, Hamedan Regional Water)
Reza
Dehghani
4
(PhD student in Civil Engineering, majoring in Water Structures, Lorestan University.)
Keywords: Cluster analysis, Hydro geochemistry, Saturation Index, Hamedan –Bahar plain,
Abstract :
Investigating of the changes in groundwater quality in the planning and management of water resources in each region is of great importance. In order to analyze the water quality hydro chemical analysis of 26 shallow wells has been. The major ions and the physical parameters of the water samples were measured. With the aim of analyzing the concentration changes of ions, cluster analysis methods and saturation indices along with statistical analysis and spatial graphic methods were investigated. Results indicate that this plain encounters negative budget and a decrease in the quality of groundwater; and the chemical type and facies of water in this field is (ca-Hco3). Plain water resources are divided into three groups in terms of quality. Due to the influence of artificial recharge dams in areas of aquifer discharge, water quality has improved. All measured samples are under saturated with respect to anhydrite, and s upersaturated with respect to calcite and dolomite.
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