Ecohydraulic-driven real-time control of stormwater basins

Abstract

Control of stormwater basins can be a competitive measure to improve the ecohydraulics of urban rivers by increasing the removal efficiency of particulates and agglomerated contaminants like heavy metals and decrease hydraulic peak flows. In this paper, we present a simulation study that evaluates the potential of ecohydraulic driven real-time control of stormwater basins to improve water quality and river morphology. Thirteen different static and dynamic control scenarios were analyzed based on a detailed hydraulic and quality model of a small urban catchment equipped with a stormwater basin at its outlet. The removal efficiency for suspended solids could be significantly increased by all control strategies. At the same time, the hydraulic peaks were reduced by at least 50%. The developed dynamic control strategies proved to be advantageous as they provide significant higher removal efficiency for suspended solids and a possible flexible adaptation to future demands.

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