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Birla Institute of Technology and Science (2017)

Investigation Mapping and Treatment Techniques for Fluoride Nitrate and TDS in Groundwater of Shekhawati Region Rajasthan India

Singh, Arun Nihal

Titre : Investigation Mapping and Treatment Techniques for Fluoride Nitrate and TDS in Groundwater of Shekhawati Region Rajasthan India

Auteur : Singh, Arun Nihal

Université de soutenance : Birla Institute of Technology and Science

Grade : Doctor of Philosophy (PhD) 2017

Résumé
Only 3% fresh water is available in the earth surface and rest (97%) is saline water which is present in ocean. Groundwater plays a vital role in our environment and economies as it occupies 30% of fresh water. Being a valuable resource, groundwater need regulations to conserve and protect its quality and quantity. Physico-chemical parameters are a major factor that controls the quality of water and ultimately controls the characterization of water and groundwater. In this research study, groundwater analysis of Shekhawati region has been carried out. The samples are collected from 163 villages and town in pre and post monsoon season of year 2012. Sixteen physico-chemical parameters such as Temperature, Colour, Odour, Turbidity, pH, Phenolpthalein alkalinity as CaCO3, Methyl orange alkalinity as CaCO3, Total hardness as CaCO3, Ca Hardness as CaCO3, Magnesium hardness as CaCO3, Chloride as Cl-, Sulphate as SO4 2, Nitrate as NO3 -, Nitrite as NO2-, Fluoride as F-, and Total Dissolved Solids (TDS) are determined in the laboratory using the titration and spectroscopy method. The results show that, the concentrations of newlinethree parameters (Nitrate, Fluoride and TDS) are higher than the acceptable range and affecting the majority of wells. Hence, Nitrate, Fluoride and TDS have been chosen for detailed studies as many diseases (methemoglobin and fluorosis) are associated with these chosen parameters. Following observation has been depicted from water testing report. and#61623 ; 48.5% and 36.2% of wells have shown presence of Nitrate in groundwater within acceptable limit (IS:10500, 2012) during pre and post monsoon respectively. newlineand#61623 ; 26.4% and 38.0% of wells have shown presence of Fluoride in groundwater within newlineacceptable limit during pre and post monsoon respectively. and#61623 ; 46.0% and 51.5% of wells have shown TDS in acceptable range in during pre and post monsoon respectively. The presences of minerals in soil of study area are responsible for higher concentration of Fluoride, Nitrate and TDS in water. The mineral sources are highlight

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Page publiée le 1er mars 2021