References
Installation of the continuous monitoring of 9 Vichy-Val d'Allier's sewers overflows (Vichy Val d'Allier, 2015)
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Expertise of the Venturi flume of the watewater treatment plant of the town of Chablis (2014)
Expertise of the Venturi flume of the watewater treatment plant of the town of Chablis (2014) The Venturi flume measuring the flow rate being
treated at the Chablis wastewater treatment plant was modeled in 3D. This
allowed to understand the non compliance of the flume observed by the Agence de
l’Eau (Water Agency), without modifying the Venturi flume or carrying out any
works. The flume was recalibrated thanks to the model so as to correct the
water level/flow rate law. The new calibrated law has an uncertainty error of <
5%. |
Hydraulic diagnostic of the overflow chamber upstream of the La Chaînette depollution basin in Auxerre (SAFEGE, 2015)
Hydraulic diagnostic of the overflow chamber upstream of the La Chaînette depollution basin in Auxerre (SAFEGE, 2015) Hydraulic diagnostic of a sewer overflow chamber
connected to a depollution basin tested for various storm intensities. Demonstration of the existence of a hydraulic
jump and the recirculation of the fluid within the chamber. Calculation of maximum levels reached within the
chamber. |
Elaboration of a method to measure the flow rate transiting through the junction gate of sewers VL9 and VL10 (SIAAP, 2014-2015)
Elaboration of a method to measure the flow rate
transiting through the junction gate of sewers VL9 and VL10 (SIAAP, 2014-2015) The SIAAP (Greater Paris Sanitation Authority)
has undertaken the junction of two primary sewers, VL9 and VL10, which are both
very deep and difficult to access. The objective of this study, assigned to
SAFEGE and 3D Eau, was to develop a flow rate measuring device using the
existing sensors in place and avoiding adding new sensors, by:
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Increasing the reliability of the flow rate measurements upstream of the Orge Station (DSEA 94, Conseil Général du Val de Marne, 2015)
Increasing the reliability of the flow rate measurements upstream of the Orge Station (DSEA 94, Conseil Général du Val de Marne, 2015)
The Sanitation Authority of the Conseil Général du Val de Marne wished to improve the reliability of the measurement method in place to measure the inflow into the Orge Station. A technical and economical comparative study was first carried out to help us choose solutions of optimal reliability, increasing the reliability of the measurements while at the same time reducing operational costs. The study covered a wide range of measuring devices (water level measurement only, water level and velocity measurements, ultrasonic transit time measurement methods), all located in complex hydraulic conditions. Among the measuring points that have had their reliability increased as a result of this study, we can mention:
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Study of the Hauts de Montreuil water tank intakes (DEA 93, 2014)
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Diagnosis of the Briche sewer overflow (SIAAP, 2014)
Diagnosis of the Briche sewer overflow (SIAAP, 2014)
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