Real-time control of urban wastewater systems – where do we stand today?

摘要

This paper presents a review of the current state of the art of real time control (RTC) of urbanrnwastewater systems. Control options not only of the sewer system, but also of the wastewater treatmentrnplant and of receiving water bodies are considered. One section of the paper provides conciserndefinitions of terms frequently used in the literature. Recent developments in the field of RTC include thernconsideration of the urban wastewater system in its entirety. This allows information from all parts of thernwastewater system to be used for control decisions and can lead to a significant improvement of thernperformance of the wastewater system. Some fundamental concepts of this approach are outlined.rnParticular emphasis in this paper is laid on methodologies of how to derive a control procedure for arngiven system. As an example of an RTC operational in practice, the Québec Urban Community globalrnpredictive RTC system is presented. The paper concludes with an outlook into current and futurerndevelopments in the area of real time control.