Electrodialysis pilot

Electrodialysis pilot

The Convergence Inspector Electrodialysis (ED) pilot system is an ideal lab-scale solution for R&D or quality control testing on ED membranes. Convergence offers two types of systems: Electrodialysis(reversal) (ED(R)) and Reverse Electrodialysis (RED).

Specifications

Feed flow range: 25 – 160 L/h
Feed flow accuracy: < 2 %
Pressure range: up to 2 bar
Pressure accuracy: < 0,1 %
Voltage range: 1 – 32 V
Current range: 0 – 15 A
Temperature range: up to 60°C (higher temperatures optional)
Dimensions: 60 x 50 x 93 cm

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Electrodialysis pilot

The Convergence Inspector Electrodialysis (ED) pilot system is an ideal lab-scale solution for R&D or quality control testing on ED membranes. Convergence offers two types of systems: Electrodialysis(reversal) (ED(R)) and Reverse Electrodialysis (RED).

By default the unit consists of three circulating loops of fluid; the concentrate, diluate and electrolyte. If requested the system can also be fitted to operate three or four chamber ED cells. It is also equipped with a reversible power source for ED(R) testing or a potentionstat for RED measurements. In-line conductivity sensors allow live measurement of retention and scales allow the user to monitor the liquid flux across the membrane. The system can be customized to include in-line pH and temperature measurement.

The user-friendly software interface records flows, conductivities, current, voltage and pressures and allows the creation of individual test scripts. You can for example easily create experiments at constant voltages or currents and also include recurring EDR steps to combat scaling. It also allows automatic calculation of permeability, retention, and other user defined calculations. The system allows you to attach all kinds of ED test cells and thus makes it extremely flexible.

Optionals:

  • In-line pH measurement
  • In-line temperature measurement
  • Customized flow- and pressure range (higher or lower)
  • ED cells and membranes
  • Automated recovery control
  • Heating system (includes heat exchangers and heating bath)
  • Additional inlets for operation of three or four chamber ED cells

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