One-dimensional gas migration in multi-layered landfills of municipal solid wastes

A calculation method is presented for determining the change of gas generation rate and gas permeability with depth in a MSW landfill.One-dimensional model of gas migration in multi-layered landfills is established on the basis of the flow theory in porous media.The influences of gas generation rate,gas permeability of MSW and cap cover on gas pressure distribution are investigated.The influences of fill age of MSW on gas pressure distribution are also analyzed.The analytic results show that the gas pressur...