Micro level groundwater flow and transport model to predict future spread of pollution for Ambur sub-basin, Tamil Nadu, India. (1st January 2013)

• Record Type: Journal Article
• Authors: Hemamalini, C.G.; Krishnaveni, M.
• Is Part Of: International journal of water. Volume 7:Number 3(2013)
• Page Start: 223
• Page End: 239
• Publication Date: 2013-01-01
• Subjects: micro level -- groundwater -- transport model -- Visual MODFLOW -- pollution prediction -- TDS -- total dissolved solids; Water -- Periodicals; Water resources development -- Periodicals; 553.705
• Languages: English
• ISSNs: 1465-6620

Abstract

Realistic groundwater flow and transport models have greater use in understanding, predicting and managing groundwater systems in water-scarce and polluted areas. In this study, micro-level flow and transport models were developed, using the Visual MODFLOW software, for the highly polluted Ambur sub-basin, Tamil Nadu for the purpose of predicting pollution migration in the next 50 years and providing site-specific insight for remediation action. The study covered 70 villages over the period 2009–2011. The simulation results revealed that in a few villages, the Total Dissolved Solids (TDS) levels increased by 100% to 200% over a 50-year period. Recommendations were made for pollution dilution through water recharge structures and for carrying out further simulation exercises on remediation impact. The model predictions provide a framework to researchers for carrying out similar groundwater modelling exercises for all types of groundwater polluted areas and river basins for the purpose of predictions and preventive remediation actions.