Sharif Digital Repository

For several decades, tubular bioreactors have been used in many microbiological processes such as wastewater treatment and biopesticide production. The use of biofilm in bioreactors has positive effects on their technical characteristics, which include increasing the concentration of biomass, preventing depletion and increasing the resistance of cells against the inhibitory effect of toxic compounds. The existing mathematical models for biofilms can be divided into two general categories: analytical and numerical. In this project, the goal is to simulate the removal process of phenol by aerobic microorganisms in a tubular bioreactor with a biofilm layer on its inner wall, using numerical...