S Manoj, M Thirumurugan
The interaction between surface water and groundwater is a complex process and is considered an important component for controlling mining activities. The objective of this study is to understand this interaction around a proposed uranium mining site using geochemical modelling. Surface water and groundwater samples were collected from September 2013 to June 2016 across the uranium mineralised region near Gogi, Karnataka, India. Water samples were analysed for major ions and uranium concentrations, which were then used in the geochemical modelling code PHREEQC to calculate uranium speciation and saturation indices. Inverse geochemical modelling was performed along the flow direction, considering the mineralogical composition of the host rock. Measurements indicated that recharge and discharge in this region were primarily controlled by rainfall. The relationship between rainfall variation and saturation indices revealed various interaction scenarios between surface and groundwater around the mineralised region. Major processes identified include silicate/carbonate weathering, irrigation return flow, and dissolution of evaporites, which control the hydrogeochemical evolution of water in this area. The study demonstrates the effectiveness of geochemical modelling in understanding temporal changes in surface water and groundwater interaction in a uranium mineralised region.
@article{881418eb-c30d-48b3-ab38-aa218c63499b,
title={Hydrogeochemical modelling to understand the surface water–groundwater interaction around a proposed uranium mining site},
author={S Manoj and M Thirumurugan},
year={2019},
language={en}
}TY - JOUR TI - Hydrogeochemical modelling to understand the surface water–groundwater interaction around a proposed uranium mining site AU - S Manoj AU - M Thirumurugan PY - 2019 LA - en ER -
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