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Optimisation of a large WWTP thanks to mathematical modelling
C Printemps1, A Baudin, T Dormoy
1Anjou-Recherche, 1 place de Turenne, 94417 Saint Maurice, France.
Summary
Wastewater treatment plant (WWTP) managers can now use a simplified mathematical model to predict effluent nitrogen and sludge extraction. This tool, developed using WEST software, aids in optimizing plant operations.
Area of Science:
- Environmental Engineering
- Water Treatment Technologies
- Mathematical Modeling
Background:
- Optimizing wastewater treatment plant (WWTP) operations is a key priority for managers.
- Accurate process control and prediction are essential for efficient plant management.
Purpose of the Study:
- To develop a simplified mathematical model for the Tougas WWTP in Nantes, France.
- To create a tool for direct use by WWTP managers to reproduce and anticipate plant behavior.
- To enable optimization of WWTP operations through simulation.
Main Methods:
- Development of a mathematical WWTP model using WEST software.
- Model calibration and validation using site data.
- Implementation of a simplified and a detailed WWTP configuration.
Main Results:
- The simplified model accurately predicted effluent nitrogen (ammonia, nitrate) and daily sludge extraction.
- The detailed model allowed for independent analysis of individual biological trains.
- Good simulation results were achieved during calibration and validation phases.
Conclusions:
- A simplified mathematical model can effectively predict key WWTP performance indicators.
- The developed tool has the potential for direct operational use by WWTP managers.
- Further research will focus on the simulator's application for optimizing Tougas WWTP operations.