The assessment of the quality of groundwater in Rapur area of Nellore District has been carried out with an objective to determine the hydrogeochemical validity. A total of 30 samples of groundwater were collected fro...The assessment of the quality of groundwater in Rapur area of Nellore District has been carried out with an objective to determine the hydrogeochemical validity. A total of 30 samples of groundwater were collected from wells occurring in the study area. The analyzed physicochemical parameters such as pH, electrical conductivity, total dissolved solids, silica, calcium, magnesium, sodium, potassium, bicarbonate, carbonate, sulfate, and chloride are used to characterize the ground-water quality and its suitability for drinking and irrigational uses. Based on the analytical results, chemical indices like sodium absorption ratio (SAR), adjusted SAR, percent sodium (Na %), potential salinity, residual sodium carbonate (RSC), permeability index (PI), chloroalkaline indices, Kelly’s ratio, magnesium ratio and Gibbs ratios have been calculated. Chadha rectangular and diagram for geochemical classification and hydrochemical processes of groundwater indicated that most of the waters are Na-Cl and Ca-Mg-Cl types. The Gibb’s plot indicates that the groundwater chemistry of the study area is mainly controlled by rock-water interaction.展开更多
文摘The assessment of the quality of groundwater in Rapur area of Nellore District has been carried out with an objective to determine the hydrogeochemical validity. A total of 30 samples of groundwater were collected from wells occurring in the study area. The analyzed physicochemical parameters such as pH, electrical conductivity, total dissolved solids, silica, calcium, magnesium, sodium, potassium, bicarbonate, carbonate, sulfate, and chloride are used to characterize the ground-water quality and its suitability for drinking and irrigational uses. Based on the analytical results, chemical indices like sodium absorption ratio (SAR), adjusted SAR, percent sodium (Na %), potential salinity, residual sodium carbonate (RSC), permeability index (PI), chloroalkaline indices, Kelly’s ratio, magnesium ratio and Gibbs ratios have been calculated. Chadha rectangular and diagram for geochemical classification and hydrochemical processes of groundwater indicated that most of the waters are Na-Cl and Ca-Mg-Cl types. The Gibb’s plot indicates that the groundwater chemistry of the study area is mainly controlled by rock-water interaction.
