Dynamic modeling of suspended growth biological wastewater treatment processes. Mathematical modeling of fixed-film growth. Continuous settler opeation: a dynamic model. Dynamics, stability and control of the anaerobic digestion process. Wastewater treatment and receiving water body interactions. Applications of expert systems in the process industry. Knowledge-based system for the diagnosis of an activated sludge plant. Applications of expert system in environmental engineering. System identification and control. Practical experiences of identification and modeling from experiments. Dynamic modeling and expert systems in wastewater engineering: trends, problems, needs.