Abstract
The inflow rate and the concentration of an inlet wastewater treatment plant are not
constant and may vary very much. This variation affects the micro organisms in the secondary
treatment. The equalization basin is used to provide a constant flow. But what is the best way to
control the water in the equalization basin? The paper presents an attempt to change the strategy
proposed in "Dynamics of Environmental bioprocesses" by J. Snape, I. Dunn, J. Ingham, and J. Prenosil
and introduces two fuzzy control strategies for wastewater treatment.
