Flow measurement
Measurement of flow of effluent from a treatment plant makes it able to calculate load and mass balance. Measurement could be performed with different methods like magnetic flow meters or open channels like Parshall flume or weirs, in which the flow is calculated as a function of liquid depth.
Immersion Sensor Cerlic FLX measue flow as a function of liquid depth in open channels. Two sensors can be connected to the same BB2 central unit, so flow can be measured in two different flumes/weirs simultaneously, e.g. effluent and by-pass flow.
Sampling
Reliable and representative sampling with built in cleaning – Cerlic COW
Effluent water contains nutrients, both soluble and particles. To get a representative sample, the sampling device needs to be able to cope with both small and big particles. Sampling with lift head between 3 – 6 meters requires good velocity in the inlet hose to avoid that heavier particles settles, which may jeopardize the sample representativeness. Cerlic COW utilizes pre-vacuum of sample chamber to lift sample rapidly when suction height exceeds 3 meters.
The built in flushing prevents dirt and grease to build up in the sample chamber and will reduce manual maintenance.
