Study of Processing of Municipal Solid Waste Landfill Leachate | Original Article

ABSTRACT:

The release of leachate poses a serious risk to both surface water and groundwater from MSW dumps. Leachate is any liquid that percolates through a landfill and collects the solids and liquids that have been stored there. When garbage has moisture, it attracts rainwater, which then seeps into the landfill and forms leachate. In this paper, we present the findings of an analysis of an aerobic treatment process applied to leachate from Ghazipur (Delhi) landfill, by way of coagulation flocculation theory, with the aid of coagulant and accelerator substances to speed up and improve coagulation and flocculation performance. The primary objective of this research was to utilise a naturally occurring, low-cost material as an accelerator addition to improve the chemical treatment process using Alum coagulant, with the accelerator ingredients being Perlite and Bentonite. The accelerator chemicals, including Alum at a constant concentration of 90 mgl, significantly improved the efficacy of the chemical therapy. We found that the performance of perlite effluent was superior than that of bentonite. At a concentration of 40 mgl, the removal ratios for Perlite were 86.7 for conductivity, 87.4 for turbidity, 89.9 for biological oxygen demand (BOD), and 92.8 for chemical oxygen demand (COD). For Bentonite, these values were 83.5 for conductivity, 85.0 for turbidity, 86.5 for BOD, and 85.0 for BOD.