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3X - EDI cell

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  • 3X - EDI cell
E-Cell StackTM  Modello 3X

E-Cell StackTM Modello 3X

3X - EDI cell

The MK-3E module is an EDI cell capable of producing demineralised water with a very high level of purity. The ions are removed by means of an ion exchange resin, which in turn is regenerated on a continuous basis by means of electric current. Interruptions of the process and regenerating chemicals are thus not necessary to restore functionality.

Technical data:

Design pressure of the E-CellTMmodule 6.9 Bar
Working pressure 4.1-6.9 Bar
Pressure drop 1.4-2.8 Bar
Operating temperature 5-40 ºC
Membrane Asahi Glass Corporation (AGC)
Ion-exchange resin Mitsubishi Chemical
Anode materila IrOx/TiO2 su Ti
Cathode material stainless steel
Dimensions 310 x 710 x h 610 mm
Weight 150 kg
Connections TC (1" for feed - 3/4" for concentrate)
Performance:
Minimum flow rate 2.27 m3/h
Maximun flow rate 6.36 m3/h
Normal flow 5 m3/h
Recovery 90-95%
Supply Voltage 400 V or 600 V DC (maximum)
Current 0.5 - 4.5 A
Produced water quality resistivity >16 MΩ-cm
Silica < 5 ppb
Sodium < 3 ppb
Boron removal > 95%


The water supplied must meet the following requirements:

Constituent Unit Power supply
TEA* ppm CaCO3 < 25@5 m3/h
Conductivity uS/cm <43
pH from 5 to 9
Hardness ppm CaCO3 < 1
Silica (reactive) ppm < 1
TOC ppm < 0.5
Total chlorine ppm < 0.05
Fe, Mn, H2S ppm < 0.01
SDI 15min. < 1.0
Turbidity NTU < 1.0
Oil and fats Not detectable
Oxidizing agents Not detectable
Colour APHA < 5

* TEA represents the total anionic load, thus including CO2

The module must under all circumstances be protected against components which might damage the resin or the membranes. The module must also be protected against excess pressure and water-hammer phenomena.

Note: the feed to the module must be a reverse-osmosis permeate or water presenting equivalent characteristics. In any case, the parameters indicated above are to be considered maximum values for each individual contaminant and the quality of the inlet water compatible with a specific application must be determined for each individual case. 


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