A New Approach of Solving the Nonlinear Equations in Biofiltration of Methane in a Closed Biofilter

In this paper, a new mathematical steady state model which describes the methane biofiltration process is discussed. The model involves the impact of various parameters, such as the inlet methane concentration, the gas superficial velocity and the packing bed average temperature, on the methane biofilter efficiency. Simple and an approximate expression of concentrations and elimination capacity are derived for general non-linear Monod kinetics models. The analytical results are compared with the numerical results and are found to be in good agreement. This analytical result helps as to estimate the overall biofilter efficiency in terms of the conversion, elimination capacity and carbon dioxide production.