Landfilling is the most common MSW disposal practice in the
world (Gerçel, 2011) likely because it is most economical and does
not required skilled operators. As a result, it is particularly suited
for developing countries where low capital and maintenance cost
depression or closed mining sites are commonly used for landfills
(Daskalopoulos et al., 1998). In the US, modern landfills are wellengineered facilities that are designed, operated, and monitored
in compliance with federal regulations. Some new landfills collect
potentially harmful landfill gas (LFG) and convert the gas into
energy