Abstract
Leachate is a hazardous liquid which percolates through the landfills and extracts dissolved and suspended hazardous matter from it. Large quantities of municipal solid waste which consist of chemical, industrial and biomedical wastes are received by dump yards, which creates environmental problems such as pollution of soil and groundwater. In the present study, the laboratory test was conducted on both contaminated and uncontaminated (collected soil sample from college campus) lateritic soils to determine the effect of landfill leachate on the performance of subgrade soil. The contaminated soil samples were prepared by mixing the soils with MSW leachate in the increments of 0%, 5%, 10% and 20% by weight. Finally, all subgrade soil properties were analyzed. For contaminated soil, Atterberg’s limits increase with the increase in the leachate content. The MDD is maximum till 10%, and after that, it is decreased. The results showed that the MSW leachate affects the compaction characteristics, shear strength and Atterberg’s limits of the lateritic soil.
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