Application of Control Theory to Water Quality Management

  • B. Abiola University of Lagos
  • A. Ibiwoye University of Lagos
Keywords: Biochemical Oxygen Demand, Dissolved Oxygen, Control Signals, Uncertainties


This paper considered the concentration of Biochemical Oxygen Demand (B.O.D) and Dissolved Oxygen as the two important indices of water quality management. The effect of uncertainties that could affect the rate of change of B.O.D and D.O. respectively were also considered. We used the model proposed by Streeter and Phelps enunciated in [Chen & Lee 1987], and developed an algorithm according to [Abiola& Ibiwoye 2012], in order to propose control signals that could move the D.O. level to some prescribed desired level.