Identification of a wastewater treatment reactor by catalytic ozonation

Abstract This paper deals with the identification of a wastewater treatment pilot process by catalytic ozonation. In general, catalytic ozonation processes operate with a deliberate ozone overproduction to obtain a treated water which respects the discharge standards. But, in this case, the oxygen consumption is not optimal and the operating costs are important. The final objective of this study focuses on the optimization of the catalytic ozonation reactor. The first step, the system identification, is described in this paper. A one-input two-output model is identified to represent the pilot process behavior. The first output is modeled by a nonlinear continuous-time Wiener model, and the second one is given by a linear continuous-time transfer function.