Analytical expressions for the concentration of nitric oxide removal in the gas and biofilm phase in a biotrickling filter

In this paper, a mathematical model of nitric oxide removal using biotrickling filter (BTF) packed with uniform ceramic particles under thermophilic condition is discussed. The model proposed here is based on the mass transfer in gas-biofilm interface and chemical oxidation in the gas phase. Analytical expressions pertaining to the nitric oxide (NO) concentration in the gas and bio-film phase have been derived using the Adomian decomposition method (ADM) for all possible values of parameters. Furthermore, in this work the numerical simulation of the problem is also reported using Matlab program to investigate the dynamics of the system. Graphical results are presented and discussed quantitatively to illustrate the solution. Good agreement between the solutions is presented in this paper and numerical data are obtained.