REAL-TIME CONTROL OF WASTE-WATER SYSTEMS

The application of real time control (RTC) within a wastewater system may be useful if operational problems exist which vary in time and spa ce and if idle capacity in the system is simultaneously available. In a first section in this paper general features of RTC systems are disc ussed. Typically a RTC system requires hardware that can work under ha rsh conditions. In addition simulation programs are very useful when t he RTC systems and their respective control strategies are to be devel oped. Finally, in a second section the development of the Malmo-Klagsh amn RTC system is described in more detail. This is one of the few was tewater systems where integrated RTC of, both, the sewer system and th e treatment plant is applied in full-scale.