Hydrogeochemical analysis was carried out to assess the suitability of groundwater for drinking, domestic, agriculture and industrial purposes in Sivagangai district, which is economically backward district of Tamil Nadu, India. Seventy ground water samples were collected during pre and postmonsoon season in the year 2017 from all over the district and analyzed for hydrogen ion activity, electrical conductivity, total dissolved solids, total hardness, Ca, Mg, Na, K, Cl, CO3, HCO3, SO4, total nitrate, and F. All the analytical results are compared with the corresponding guideline values of drinking water standards and the results show that groundwater in most part of the study area is potable except for a few locations in both seasons. The groundwater geochemistry is mostly controlled by rock water interaction and evaporation processes in both seasons as revealed from the Gibbs plot. The irrigation water quality parameters such as SAR, Na% and RSC results show that some of the groundwater samples are fit for agriculture. It is ascertained through hydrogeochemical analysis that the quality of groundwater is appropriate for drinking, domestic use, agriculture as well as industrial purpose and it can be utilized for industrial development to improve the socioeconomic status of the study area.
This study focused on hydrogeochemical characterisation and groundwater quality deterioration based on drinking, irrigation purposes in Pudukottai district. Eighty-seven groundwater samples were collected from the bore and dug wells during pre and post monsoon seasons in the year 2019. The order of mean abundance of ions is followed as C l > HCO3 > Na > SO4 > Mg > Ca > K (325.5 > 182.2 > 181.4 > 83.2 > 51.1 > 35.8> 9.1 > 8.6 > o.9 > 0.3) and Cl > Na > HCO3 > SO4 > Mg > Ca > K (415.7 > 230.3 > 198.2 > 82.9 > 53.8 > 43.4 > 14.9) in both seasons. Analytical results are used in Piper, Gibbs, Na% vs. EC, USSL, and PI to evaluate the hydrogeochemical processes. Rock water interaction and evaporation processes causing variations in hydrogeochemistry of the study area during pre and postmonsoon. Nearly 15 % of the groundwater samples were not permissible for drinking based on the standard, which is distributed in south eastern region of the study area. It is revealed from Na%, SAR, RSC, MgC and KR results that majority of the groundwater samples are fit for irrigation uses. The higher concentration of EC, TDS, Cl and Na values noted in south region due to the sea water intrusion that attributed by excess pumping in the coastal regions. The drinking water quality index (DWQI) and irrigation water quality index (IRWQI) are calculated to identify the suitability of groundwater for drinking and irrigation purposes. However, this research concludes that the groundwater quality of maximum part in the district is appropriate for drinking as well as agriculture which can be used for the sustainable growth. It is also recommended implementing the artificial recharge techniques to improve the groundwater quality.
The purpose of this study is to evaluate the quality of groundwater for drinking and irrigation in the Avudaiyarkoil block of the Pudukottai district, which is a drought-prone region. Samples were collected from 20 wells on January 2021 and analysed for the water quality parameters, such as pH, EC, TDS, Ca2+, Mg2+, Na+, K+, Cl-, HCO3, SO4, NO3 and F-. The analysis revealed that SO4 is the dominant ion followed by Cl-, HCO3-, Na+, Ca2+, Mg2+, K+, NO3- and F- with respect to the mean value 292>234>208.4>125>100>24.75>18>16.15>0.2. The analytical results were compared with WHO and BIS guideline values to know the groundwater potability and TH, TA, SAR, Na%, RSC, PI, MgC and KI were calculated using the analytical results to identify the suitability of groundwater for irrigation purposes.
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