The wastewater from the communes of Champoz, Valbirse, Sorvilier and Court is piped to the Court wastewater treatment plant. Until now, the wastewater fees were charged to the four municipalities according to a defined key. With the new measuring points installed by STEBATEC, the wastewater can now be billed according to the actual quantities.
The four new measuring points
Measuring station Champoz
The first measuring point is in Champoz. In the new shaft built for this purpose, a fully filled stationary flow meter using EMF was installed. The new control cabin contains the electrical panel, the measuring transducer, and a mobile router with SIM card for data communication with the control system of the Court sewage treatment plant.
Measuring station Valbirse
In the second newly constructed measuring point, near the Valbirse community, a partially filled stationary flow measurement of nominal size 600 was installed. Since there was no power connection nearby here, a 300-metre-long cable protection pipe had to be constructed for the supply cable and routed over two bridges on the Birs.
Measuring station Sorvilier
The third measuring point after Sorvilier was also equipped with a partially filled stationary flow measurement, this time of nominal width 300. In addition, a pneumatic control damper was installed. This makes it possible to regulate flow rates in such a way that, in the case of large amounts of water, the existing stormwater basin is filled first instead of overloading the STEP Court. In this way, discharges can be avoided, and a contribution is made to the protection of the water bodies.
Measuring point wastewater treatment plant Court
The fourth measuring station is the inflow measurement of the Court sewage treatment plant. A TF stationary flow measurement of nominal size 700 in the open channel.
All measuring stations were equipped with STEBAnet mobile radio, a system for data transmission that is available integrated in the TF transmitter. They work with SIM cards, as there are no DSL connections at the respective stations. Thus, the stations are always connected to the STEP Court.
The volume settlements are made directly in the process control system. The administrative effort can be kept small in this way.