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This pilot complements the gravity filtration on sand unit ref MP31 in order to produce drinking water. It enables filtration with the help of activated charcoal to remove micro-organisms and residual colloids from the water coming from the sand filter and classic chlorine disinfection.


Teaching objectives

- Study of mechanical and chemical filtration
- Study of the parameters of the filtration :
- Sizes of the filter surfaces, shapes of the filtered particles, filtration speed.
- Influence of the feed flow on the filtration efficiency


Technical specifications

- Altuglass column.
- Manometer.
- Feed centrifugal pump.
- Two polyethylene tanks.
- Transparent PVC tank.
- A chlorine measurement pump.
- A feed pump of the chlorine measurement chamber
- Two flowmeters
- Two low level switches for the pumps (high tank security is ensured by overflows).
- Continuous chlorine measuring probe and transmitter with 4-20 mA output and two relay outputs.
- The control panel includes the motor protection of the pumps.
- The unit is mounted on an stainless steel frame with aluminium nuts, the piping is in PVC.
- Two specific activated charcoals



1500 x 800 x 2000 mm


Essential requirements

Power supply : 220 V / single phase / 50 Hz -
Solution of CuSO4 10-3 M with lime (50 mg/l)


MP35 diagram - click to enlarge :