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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