Dynamic sewer system control significantly reduces discharge quantities

Reinhalteverband Mühltal & Region Böhmerwald, A-Auberg

The Reinhalteverband Mühltal & Region Böhmerwald in Upper Austria consists of 24 municipalities, looks after around 1.000 km of sewer, 18.000 sewer shafts, 300 pumping stations, 60 storm waterbasins and 6 sewage treatment plants. Despite its size, however, the drainage system reached its limits. The individually operated storm waterbasins, for example, relieved the load rigidly into the recipient in the event of overload. The fixed outflow rate to the sewage treatment plant also proved not to be optimal, as the catchment areais often irrigated unevenly. In order to reduce the untreated discharge quantities, additional storage basins could have been built or the existing basin volumes could have been increased. However,these measures are associated with considerable costs, which is why the Reinhalteverband decided to coordinate the control of the basins.

Products in use

Software for safe and efficient sewer network optimization
Intelligent management of the storage capacity in the sewer system makes a major contribution to water pollution control: it reduces overflows, makes optimum use of the storage volume in the sewer system and ensures the hydraulic capacity utilization of the wastewater treatment plant. Scientific studies show,
The reliable discharge control for wastewater and rainwater
Precise and easy to maintain throttle system for stormwater tanks and wastewater structures. The fast, almost self-cleaning and remotely controllable butterfly valve with pneumatic actuator is based on the flow measurement integrated in the system and limits the flow to an arbitrarily adjustable quantity. As long as the maximum flow is not reached, the flap remains open, while the flow measurement system measures precisely even when partially filled.
Ultrasonic transit time difference flow measurement for wastewater, raw wastewater and rainwater
Highly precise flow value acquisition. The LDM is a calibrated measuring device for backflow-free flow measurement of waste water in open channels or open channels. 10 flow velocity measuring sections distributed over the entire cross section provide most accurate flow values when the sensor is partially or fully filled. The level measurement is integrated in the device housing.
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