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Ultrafiltration is a separation process that is only usable with molecules of large size. It is also an appropriate technique of choice for sewages treatment containing proteins and other biologic molecules (dairy) .


Teaching objectives

- Study of pressure parameter : Ultrafiltration of distilled water at 20°C while measuring the water flow at different pressures.
- Recuperation of copper : Add Cu2+ under CuSO4 form, dosage of copper by atomic absorption spectrophotometer (not supplied as standard).
- Study of discharge rate : During all tests we work at constant pressure (1bar), and at constant pH .
- Influence of pH on discharge rate : we vary the pH by addition of H2SO4 or NaOH. We work at constant pressure and constant Cu2+ concentration.


Technical specifications

The pilot is composed of :

- A ceramic tubular device with hollow fibres
- A feeding tank in PVC
- A cooling circuit, temperature regulator
- A temperature probe Pt 100 with display and alarm threshold
- A permeate storage tank
- Electrovalve for introduction of cold water
- A multicellular centrifugal pump with a protection device
- Three manometers
- three flowmeters
- Two manual control valves (flow/pressure),
- An inlet filter placed after the pump protecting the cartridges,
- The circuit is made in PVC,
- A control cabinet including the pump protection and the temperature regulator



1500 x 800 x 1900 mm


Essential requirements

Power supply : 220V / single phase / 50 Hz
Water supply and drain

Option : heating resistance in line 1,5 kW


MP90 diagram - click to enlarge :