Good modeling practice of water treatment processes

Models for water treatment processes include simulation, i.e., modelling of water quality, flow hydraulics, process controls and design. Water treatment processes are inherently dynamic because of the large variations in the influent water flow rate, concentration and composition. Moreover, these variations are to a large extent not possible to control.Mathematical models and computer simulations are essential to describe, predict and control the complicated interactions of the water treatment processes. An accurate description of such systems can therefore result in highly complex models, whichmay not be very useful froma practical, operational point of view. The main objective is to combine knowledge of the process dynamics with mathematical methods for processes estimation and identification.Goodmodelling practice isway to obtain this objective and to improvewater treatment processes (its understanding, design, control and performance- efficiency). By synthesize of existing knowledge and experience on good modelling practices and principles the aim is to help address the critical strategic gaps and weaknesses inwater treatmentmodels application.