A comparison between the reaction rates in biofilm reactors and free suspended cells bioreactors

A theoretical equation for comparison of the bioreaction rates in a biofilm reactor and in a bioreactor with free suspended cells at different input substrate concentrations and substrate conversions is proposed. The main assumption is that there is no kinetic change after fixation of the cells. Some previously published experimental data are used for verification of this equation. It is shown that difference between the experimental and calculated data is within 19%.