Abstract
Leachate generated from municipal solid waste landfill site affects the groundwater quality in the adjacent areas through percolation in the subsoil. In this study, Aggregate Index method is applied to determine the quality of groundwater around a municipal solid waste dumping site. As the aggregate index is an increasing function of the distance from the landfill site, the groundwater quality improves as one move away from the landfill site. Aggregate index decreases with increase in time. Thus, water quality goes down with time. It may be due to the reason that with the passage of time the solid waste material gets degraded and the waste constituents percolate down along with rainwater thereby polluting groundwater. Hence, some remedial measures are required to prevent further contamination of groundwater in the vicinity.
Highlights
Landfilling of municipal solid waste is a common waste management practice and one of the cheapest methods for organized waste management in many parts of the world (El-Fadel et al, 1997; Dsakalopoulous et al, 1998, Jhamnani et al, 2009, Longe and Balogun, 2010)
Groundwater contamination is a major concern in landfill operations because of pollution effects of landfill leachate and its potential health risks (Lee and Jones-Lee, 1993; Christensen et al, 2001; Stollenwerk and Colman, 2003)
From the foregoing development, the following conclusions are drawn: 1. The leachate generated from the dumping site affects the groundwater quality in the adjacent areas through percolation in the subsoil
Summary
Landfilling of municipal solid waste is a common waste management practice and one of the cheapest methods for organized waste management in many parts of the world (El-Fadel et al, 1997; Dsakalopoulous et al, 1998, Jhamnani et al, 2009, Longe and Balogun, 2010). The threat to surface and ground waters could be deleterious The scale of this threat depends on the composition and quantity of leachate and the distance of a landfill from water sources (Slomczynska and Slomczynski, 2004). Groundwater contamination is a major concern in landfill operations because of pollution effects of landfill leachate and its potential health risks (Lee and Jones-Lee, 1993; Christensen et al, 2001; Stollenwerk and Colman, 2003). The composition of landfill leachate, the amount generated and the extraction of potential pollutants from the waste depend upon several factors, including waste composition, degree of compaction, absorptive capacity of the waste, age of the waste, the climate, and levels of precipitation, landfill temperature, size, geology, engineering and operational factors of the landfill (Leckie and Pacey, 1979, Kouzeli-Katsiri et al.,1999)
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