Activated Sludge Design (Complete Mix Reactor). Activated Sludge Principles . Wastewater is aerated in a tank Bacteria are encouraged to grow by providing Oxygen Food (BOD) Nutrients Correct temperature Time As bacteria consume BOD, they grow and multiply
Where m is the specific growth rate constant (d-1). This represents the mass of cells produced/mass of cells per unit of time.
Where Y is the yield factor (mg of biomass produced/mg of food consumed)
Mass balance of biomass production