PARAMETER IDENTIFIABILITY IN THE IAWQ MODEL NO-1 FOR MODELING ACTIVATED-SLUDGE PLANTS FOR ENHANCED NITROGEN REMOVAL

The IAWQ Model No. 1 is well accepted and used for dynamic modelling o f activated sludge plants. The model contains many parameters. Some of the model parameters depend on the wastewater and/or plant. In some a pplications, the model has to describe a real plant quite accurately a nd some of the parameters have to be determined. As a consequence, mod el tuning or calibration has become an active area of research during the last few years. This contribution briefly reviews recent literatur e on calibration strategies and methods for assessing parameter identi fiability of the Model. Some identifiability results for full scale pl ants are presented obtained by a combined analysis of the parametric s ensitivity and the Fisher information matrix.