3D EAU Studies
Compliance with self-monitoring of wastewater network discharge points
Issues
Order of 21 July 2015 – Estimation or measurement of the discharge rate
Application of the Order of 21 July 2015, amended by the Order of 31 July 2020 on the instrumentation of discharge points (combined sewer overflow, overflow pipe, etc.) and assessment of the reliability of the discharge measured by the self-monitoring systems of wastewater treatment plants and sewerage networks.
Hydraulic expertise of discharge points
Would you like to implement or improve the reliability of your measurement point instrumentation? 3D EAU offers a hydraulic assessment of each measurement site to meet the requirements of self-monitoring of wastewater systems.
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COACHS method (Computations and their Applications in Channel Hydraulics for Sewers)
Evaluate the flow rate discharged by pumping station overflow pipe based on the measurement of water head(s) and generic orifice law formulations resulting from a European research project.
The 3D EAU solution
0D/1D modelling
Estimate flow using a non-contact head of water and 0D modelling (laws from the literature) or 1D modelling (modelling of streamlines) to bring measurement devices into line.
3D modelling
Measure flow using a non-contact water level and 3D modelling of flows to bring the measurement device into compliance.
Below is an example of how 3D modelling can be used to make self-monitoring more reliable:
Benefits
Bringing self-monitoring systems into compliance
Recommendations for instrumentation adapted to the context of each site
Discharge laws based on hydraulic modelling (0D/1D/3D) adapted to the issue at stake
Optimisation of investment and operating costs
Methodology adapted to the expectations of the Water Agency and the Water Police
Would you like to find out more about self-monitoring?
Download the fact sheet