deltawave for wastewater

The waste water treatment plant Geiselbullach near Munich has been designed for a population equivalent (PE) of 250,000. Due to its continuously optimized measurement and control systems, Geiselbullach is one of Germany’s state-of-the-art facilities. The management’s first priority is to ensure a efficient water treatment process for the public. Therefore they are also open-minded about modern measurement techniques to reach their targets. After an extensive testing deltawave has been working successfully in the internal recycle.

Because of the high turbidity up to 9 gramms/litre the flow-monitoring of The internal recycle is one of the most challenging and critical measurement tasks within the plant. Thus the plant operator decided to install two deltawave flow-systems which provide a reliable and user-friendly measurement even in case of high turbidity rates. For that application the ultrasonic transducers are mounted on special mounting rails thus providing an easy access for start-up as well as service during normal operating conditions.

In open channels, deltawave works due to the ISO6416. Because of that and the high resolution of the transducers a measurement accuracy of 1.5% of reading is reached at those two measurment sites. The current measurement data is transferred to the process control system using a 4..20mA current signal. Additionally, the data is stored in the internal storage at the same time and could be easily transferred to a PC using a USB-Memory-Stick. So measurement data will not get lost during inspection.

Flume type: open channel (2x)
Medium: concentrated wastewater
Number of paths: 4 for each site
Transducer type: 500 kHz
Mounting: Mounting rails
Level-metering: Ultrasonic
Typical flow: 1800 m3/h

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