Publication

Abstract

Pollution caused by combined sewer overflows has become a global threat to the environment. Under this challenge, quality-based real-time control (RTC) is considered as an effective approach to minimize pollution through generating optimal operation strategies for the sewer infrastructure. To suit the fast computation requirement of RTC implementation, simplified quality models are required. However, due to the hydrological complexity, it is not easy to develop simplified quality models which are amenable to be used in real-time computations. Under this context, this paper contributes 1) a preliminary analysis of influencing factors for the quality models of sewer networks in order to give supportive knowledge for both model developing and applying. Conceptual quality models which were proposed previously by the authors, with total suspended solid (TSS) as quality indicator, are used in this study. 2) Clustering algorithm is used for exploratory analysis. Further analysis about the correlations between different factors and model performance is also carried out. 3) All the study and analysis are demonstrated on a real pilot based on Louis Fargue urban catchment in Bordeaux. Conclusive results about the influencing factors, flow rate, rain intensity and pipe length, as well as their correlations with the TSS models are elaborated.

Categories

pattern recognition.

Scientific reference

C. Sun, B. Parellada, J. Feng, V. Puig and G. Cembrano. Factors influencing the stormwater quality model of sewer networks and a case study of Louis Fargue urban catchment in Bordeaux, France. Water Science & Technology, 2020, to appear.