Analysis of Ground Water Quality and Leachate of Surrounding Mavallipura Msw Site Bangalore

Abstract

The experiment was conducted in Mavallipura MSW dumping site, located at N 13º O6' 36" and East 77º 31' 38.8" longitude, Bangalore North covering an area of 300 Ha Bangalore North. Due to the industrialization and urbanization, various types of wastes produced from the city are dumped in low lying areas and outside the cities without proper treatment and engineering controls. As water percolates through MSW, it makes leachate that consists of decomposing organic matter combined with iron, mercury, lead, zinc, nickel, cadmium, copper, and Manganese, which is cause for the groundwater contamination in the nearby areas of the dumpsite. So there is a need for groundwater analysis around the dumpsite to know what extent groundwater has been contaminated. The wastes may solid, liquid, @ semisolids, from industries and domestic areas. Leachate and groundwater samples were collected from municipal solid waste dumpsite of Mamallapuram which comes under Bruhat Bangalore Mahanagara like Bangalore. The water samples are collected within the radius of 2 km around the solid waste dumping site for study. The results of physicochemical analysis of the subsurface water samples indicated that the normal water suitable for drinking needs magnesium 50mg/l and whereas the samples drawn from this site was 495.97mg/l. The electrical conductivity of sample water was reached up to 4720 μs/cm as against 2500 for normal water. The total hardness in sample water was 510.48mg/l against the 350mg/l in normal water. Similarly for other parameters assess were sodium, nitrate, and TDS which were found to be 1906.5mg/l, 141.67mg/l and 2734mg/l respectively against the normal water contents 200,50 and 500mg/l respectively. The leachate was also analyzed and it was found that magnesium was reached at 740mg/l, electrical conductivity is very high to the tune of 46400 μs/cm. The total hardness in the leachate was 1300mg/l and nitrate was reached to 257mg/l based on this study it is concluded that the underground water is fully contaminated which is not fit for drinking in future days.