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Integrated modelling as an analytical and optimisation tool for urban watershed management
V Erbe1, T Frehmann, W F Geiger
1Wupperverband, Wuppertal, Germany.
Summary
Integrated numerical modeling optimizes urban wastewater systems by analyzing sewer, wastewater treatment plant, and receiving water interactions. This approach enhances operational efficiency and pollution control for better environmental management.
Area of Science:
- Environmental Engineering
- Water Resource Management
- Computational Fluid Dynamics
Background:
- Numerical modeling is standard for urban wastewater systems but often treats subsystems independently.
- Lack of integrated models hinders a holistic view of sewer systems, wastewater treatment plants (WWTPs), and receiving waters.
- Synergistic benefits arise from analyzing interactions across system interfaces.
Purpose of the Study:
- To demonstrate the potential of integrated numerical models for urban wastewater systems.
- To analyze fluxes and pollution control across the entire wastewater system.
- To optimize the interface between sewer systems and WWTPs through predictive simulations.
Main Methods:
- Development and application of integrated numerical models combining various software.
- Case studies in Germany showcasing integrated modeling approaches.
- Analysis of system-wide fluxes and pollution dynamics.
Main Results:
- Integrated models enable analysis of fluxes through the total wastewater system.
- Pollution-based control can be integrated upstream, managing retention tanks based on WWTP or receiving water states.
- Predictive simulations optimize sewer-WWTP interface, maximizing combined water flow based on treatment process dynamics.
Conclusions:
- Integrated modeling offers significant potential for optimizing urban wastewater systems design and operation.
- Further development of integrated models is ongoing.
- Holistic system analysis leads to improved efficiency and environmental protection.