In order to find out the rule of pressure distribution of landfill gas (LFG) in landfill with single vertical extraction well, a comprehensive three-dimensional (3D) model of gas generation and transport in landfills is developed based on Monod equation, hydrodynamics in porous media, and seepage theory of gases. The governing non-linear equation of mass transport and reaction is solved by finite deference method. Simulation results show that under the condition of single extraction well with negative pressure, landfill gas gathers around extraction well, where there is a prominent pressure in...
