Background and Objective: A model for the activated sludge aeration reactor is
developed to study the effect of operating conditions on biodegradable organic pollutants
Methods: The model was developed and fitted using an experimental study conducted for
wastewater collected from meat processing industrial units in Egypt. Inlet biomass and substrate
concentrations are the operating parameters considered in our study.
Results: After treatment; biomass outlet concentration was reduced substantially. After
reaching steady-state operation, outlet biomass concentration was not affected by the inlet
biomass concentration, while outlet substrate concentration showed great dependency on the
inlet substrate concentration. The model agrees well with the experimental data collected
from an industrial activated sludge treatment unit.
Conclusion: By varying process parameters, the model can be used effectively to predict and
optimize the system behavior under different operating conditions. Varying the substrate
concentration may lead to optimizing the process conditions for the system under study.