The ultrafiltration system is used for the treatment of pre-filtered or pre-precipitated surface or well water. The equipment with PLC Siemens S7-1200 allows a comfortable operation via touch screen and a fully automatic operation with cyclic backwash.The optionally available CEB dosing pumps also enable chemically assisted backwashing (CEB).
Benefits
- Considerable reduction of operating costs by using raw water (e.g. surface water or well water) instead of city water
- Fully automatic operation with cyclic backwash of the UF membranes with ultrafiltrate
- Equipped with PLC Siemens S7-1200 with comfortable operation via touch screen
- Backwash tank / cleaning tank with frequency-controlled backwash pump included
Applications
- Advantageous for raw water of fluctuating quality (e.g. surface water)
- Use for raw water with a large proportion of particles in the range 20 to 0.2 μm and turbidity > 1 NTU
- Ultrafiltration is an ideal pre-treatment for reverse osmosis
- Controller :
- PLC Siemens S7-1200
- Filtrate recovery :
- 95 %
- Pressure fluctuation:
- ± 0.5 bar
- Cut-off point approx.:
- 0.02 µm
- Operating pressure:
- 1 – 5 bar
- Operating temperature:
- 0 – 35 °C
- Filtrate backpressure:
- 0.1 – 2.0 bar
- Operating pressure backwash approx.:
- 2.5 bar
- Feed water pressure :
- 2.5 – 4.0 bar
- Conditions of use:
- Filtrate flux depends on the quality of raw water. Raw water has to be supplied with a pressure of at least 2,5 bar. In case of insufficient inlet pressure, the raw water supply can optionally be realised with a frequency-controlled centrifugal pump. Moreover, the system is designed for free outlet on the product and wastewater side. We recommend the use of FeCl3-based flocculants for pre-treatment (especially with COD values >2 mg/l) and a disc filter from the DISC-UF series to separate coarse dirt. CEB 30 or CEB 50 dosing systems (available as an option) enable a chemically enhanced backwash (CEB) to be carried out. The need to neutralize the resulting wastewater when using cleaning chemicals must be checked.
- Feed water temperature:
- 5 – 35 °C
- Turbidity:
- < 5 NTU
- pH-value operation:
- 6.5 – 9.5
- pH-value cleaning:
- 1 – 13
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