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The main objective of the research is to develop a mathematical describing denitrification process within a Fluidized Bed Biofilm (FBBR). The developed model consists of the following sud-model:
- Fluidization sub - model;
- Transport sub - model;
- Bio - particle sub - model;
Model inputs consist of influent charactristics, physical and biological constrants, and design parameters, while the outputs are equilibrium biofilm thickness, bed porosity, biomass concentration, effectiveness factor (a factor through which mass transfer resistance is incorporated into the reaction term), and finally substrate concentration along the reactor.
The model is a steady state one, and considers as the only substance controlling denitrification rate. The model shows to have acceptable accuracy in predicting longitudinal nitrate profile, when compared to the exprimental results in The literature. (1)