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Potential interplay of Uranium with geochemical variables and mineral saturation states in groundwater

Thivya Chandrasekar, Chidambaram Sabarathinam

2021enuraniumgroundwatergeochemistrysaturationmineral

Abstract

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Uranium (U) is formed by the interaction of groundwater in aquifer and the surrounding rocks. The area chosen for this study is a hard rock terrain of various lithology in South India, which releases U in groundwater and affects the groundwater quality. Hence, this study was conducted to understand the geochemistry and temporal variations of U in groundwater with respect to saturation state of minerals for different seasons, namely Pre-monsoon (PRM), Northeast monsoon (NEM), Southwest monsoon (SWM) and Post-monsoon (POM). A total of 216 groundwater samples were collected, representing various lithologies (Fissile hornblende biotite gneiss, Charnockite, Quartzite, Granite, and Flood Plain Alluvium) in the study area. The collected samples were analyzed for physical parameters such as Electrical conductivity, Total dissolved solids, pH and major ions. U was measured using Laser Fluorimeter. The study infers that weathering in SWM, ion exchange in PRM and POM and anthropogenic processes in NEM were the three major processes that could dominate the hydrogeochemistry of U. The saturation index study was made and calculated for uranium, carbonate, sulfate, silicate, and phosphate minerals using the PHREEQC Programme. Overall, the weathering process and the lithological impact are the sources for higher concentration of U and their minerals occurring in the study area.

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Cite This Work

@article{ca7203ca-af14-46d6-89c6-dfbf39ccc6a1,
  title={Potential interplay of Uranium with geochemical variables and mineral saturation states in groundwater},
  author={Thivya Chandrasekar and Chidambaram Sabarathinam},
  year={2021},
  language={en}
}
TY  - JOUR
TI  - Potential interplay of Uranium with geochemical variables and mineral saturation states in groundwater
AU  - Thivya Chandrasekar
AU  - Chidambaram Sabarathinam
PY  - 2021
LA  - en
ER  -

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