Title : Estimation of methane generation from Municipal Solid Waste (MSW) of gujranwala city (Pakistan)
Waste landfill sites are the source of methane generation which is biggest contributor to global warming. The main purpose of this study is to determine the concentration of methane gas from Municipal Solid Waste (MSW) at the site of Bakhrewali in the Rahwali Cantonment area, Gujranwala city, Pakistan and to estimate the amount of energy that could be recovered from the MSW site. The waste samples were collected to analyze the composition, energy content, and concentration of methane. The results from the characterization of MSW showed that the main component of Bahrewali site, Gujranwala MSW is organic waste. Methane concentration from sites 1, 2 and 3 were recorded to be 118.45, 35.32, 48.26 ppm methane/g waste. The calorific value of the waste samples was measured to be 13.45, 12.24, and 11.01 MJ/kg. These findings affirm that the formation of methane gas at the waste sites could be used for energy recovery. Also, the calorific value of the waste samples suggests that these samples can be combusted and be utilized as feedstock for electricity generation.