Depth filtration is a key unit operation in water treatment. CE 579 enables this process to be demonstrated.
Raw water contaminated with solids is pumped from above into a filter. The solids are captured and retained as the raw water flows through the filter bed. The water itself passes through the filter bed and emerges at the bottom end of the filter. The treated water (filtrate) flows into a tank. Over time, more and more solids are deposited in the filter bed which increases its flow resistance. This process is detectable by the increasing pressure loss between the filter inlet and outlet. The flow through the filter decreases. Backwashing with treated water cleans the filter bed and reduces the pressure loss again.
The filter is equipped with a differential pressure gauge. The pressure along the filter bed is recorded with several pressure sensors. This can be used to plot Micheau diagrams. The flow rate, temperature, differential pressure and system pressure are also recorded. The flow velocity in the filter bed can be adjusted. Samples can be taken at all relevant points. The height of the filter bed can be read on a scale.
The trainer is controlled via the integrated PLC with touch screen. By means of an integrated router, the trainer can alternatively be operated and controlled via an end device. The user interface can also be displayed on additional end devices (screen mirroring). Via the PLC, the measured values can be stored internally. Access to stored measured values is possible from end devices via WLAN with integrated router/LAN connection to the customer’s own network.
E.g. diatomite can be used to produce the raw water.
