Geochemical investigation of groundwater contamination in Perungudi dumpsite,South India |
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Authors: | K Parameswari B V Mudgal |
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Institution: | 1. Centre for Water Resources, College of Engineering Guindy, Anna University, Chennai, 600 025, India
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Abstract: | Unscientific disposal of municipal solid waste causes groundwater contamination. The migration of leachate from the solid waste dumpsite to the aquifer varies according to the geohydrological profile of the dumpsite. A detailed study of the mechanism of leachate percolation to the groundwater helps to design a proper groundwater remediation technique. Multilevel boreholes were drilled in the periphery of the Perungudi dumpsite, Chennai, India. The major lithological layers and the geochemical analysis of the contaminant migrated from the dumpsite to the underlying aquifer has been studied. The distribution of heavy metals such as Pb, Fe, Zn, Cr, and Cd follows a similar trend in the pollutant source, groundwater samples around the dumpsite, and at various litho units beneath the dumpsite. The analysis thus helps to find an appropriate groundwater remediation technique to remove the specific contaminant and thereby provide a safe drinking water for the surrounding community. |
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