 Landfill gas (LFG) is generated by degradation of the biodegradable waste fraction, and is influenced by waste physicochemical composition and environmental variables.Studies have shown that the actual rate of gas production in a landfill is a function of waste composition (organic content), age (or time since placement), climate variables, moisture content, particle size, compaction and buffering capacity.LFG mainly consists of carbon dioxide (CO2), methane (CH4) and numerous trace components.