Hydrogeochemical Modelling for Groundwater in Neyveli Aquifer, Tamil Nadu, India, Using PHREEQC: A Case Study

被引：3
作者：
Chidambaram S. [1 ]
Anandhan P. [1 ]
Prasanna M.V. [2 ]
Ramanathan A.L. [3 ]
Srinivasamoorthy K. [4 ]
Kumar G.S. [5 ]
机构：
[1] Department of Earth Sciences, Annamalai University
[2] Department of Applied Geology, School of Engineering and Science, Curtin University, 98009 Miri, Sarawak
[3] School of Environmental Sciences, Jawaharlal Nehru University, New Delhi
[4] Department of Earth Sciences, School of Physical, Chemical and Applied Sciences, Pondicherry University, Puducherry
[5] Department of Geology, HNB Garwhal University, Srinagar, Uttarakhand
来源：
Natural Resources Research | 2012年 / 21卷 / 3期
关键词：
Hydrogeochemistry; inverse modelling; Neyveli aquifer; saturation index; silicate stability;
D O I：
10.1007/s11053-012-9180-6
中图分类号：
学科分类号：
摘要：
Sophisticated geochemical models have been used to describe and predict the chemical behaviour of complex natural waters and also to protect the groundwater resources from future contamination. One such model is used to study the hydrogeochemical complexity in a mine area. Extraction of groundwater from the coastal aquifer has been in progress for decades to mine lignite in Neyveli. This extraction has developed a cone of depression around the mine site. This cone of depression is well established by the geochemical nature of groundwater in the region. 42 groundwater samples were collected in a definite pattern and they were analysed for major cations, anions and trace elements. The saturation index (SI) of the groundwater for carbonate, sulphate and silica minerals was studied and it has been correlated with the recharge and the discharge regions. The SI of alumino silicates has been used to decipher the stage of weathering. The SI Gibbsite - SI K-feldspar has been spatially distributed and the regions of discharge and recharge were identified. Then two flow paths A1 and A2 were identified and inverse modelling using PHREEQC were carried out to delineate the geochemical process that has taken place from recharge to discharge. The initial and final solutions in both the flow paths were correlated with the thermodynamic silicate stability diagrams of groundwater and it was found that the state of thermodynamic stability of the end solutions along the flow path were approaching similar states of equilibrium at the discharge. © 2012 International Association for Mathematical Geology.
引用
收藏
页码：311 / 324
页数：13
相关论文
共 35 条
  • [1] Anandhan P., Hydrogeochemical studies in and around Neyveli mining region, Tamil Nadu, India, (2005)
  • [2] Standard Methods for the Examination of Water and Wastewater, (1995)
  • [3] Report of the working group on the estimation of ground resources and irrigation potential of Periyar district, Tamil Nadu, (1992)
  • [4] Chidambaram S., Hydrogeochemical studies of groundwater in Periyar district, Tamil Nadu, India, (2000)
  • [5] Deutsch W.J., Ground Water Geochemistry: Fundamentals and Application to Contamination, (1997)
  • [6] Drever I.J., The geochemistry of natural waters, (1988)
  • [7] Elangovan K., Hydrogeochemistry of groundwater forming heavy scales in water supply system of Salem district, Tamil Nadu, (1997)
  • [8] Elangovan K., Balasubramanian A., Thirugnana Sambandam R., Rengarajan R., Satish P.N., Janardhan A.S., Geochemical modeling of crystalline aquifers of Salem district, Tamil Nadu, Indian J Geochem, 14, pp. 1-17, (1999)
  • [9] Felmy A.R., Bervin D.C., Jenne E.A., MINTEQ. A computer program for calculating aqueous geochemical equilibria, (1984)
  • [10] Garrels R.M., Christ C.L., Solutions minerals and equilibria, (1965)
1234