Optimisation of operational management practices for the detention basins

Area of Science:

• Environmental Engineering
• Hydrology
• Water Resource Management

Background:

• Detention basins are crucial for managing urban stormwater runoff.
• Current operational practices often fail to optimize pollutant removal and flood control.
• There is a need for improved management strategies for existing detention structures.

Purpose of the Study:

• To develop novel operational management practices for detention basins during rainfall events.
• To enhance flood risk mitigation and reduce pollutant discharges through optimized settling.
• To integrate stormwater treatment into existing detention structures.

Main Methods:

• Developed a methodology for integrating stormwater treatment into detention basins.
• Conducted studies on current basin operations and "on/off" regulation to assess control flexibility.
• Elaborated and tested new operational rules using a hydraulic model on experimental basins.

Main Results:

• Quantified the operational flexibility of existing detention basins.
• New "on/off" based operational rules were developed and validated.
• Assessed the efficiency of the new rules in reducing flooding and pollutant loads.

Conclusions:

• The developed operational practices effectively limit flooding risk.
• Optimized settling processes significantly reduce pollutant discharges.
• The study provides a framework for improving stormwater management in existing detention basins.