Technologies - Electrodeionisation for ultra pure water Download The PDF

Why our Continuous Electrodeionisation?

Our Continuous Electrodeionisation (CEDI) products are the most advanced generation of Ion Exchange technology. CEDI is a chemical-free process that uses ion exchange resins and electricity to produce ultra pure water (deionised). Our products are environmentally friendly, operate with continuous production, and have extremely low operating costs when compared to chemically regenerated ion exchange technology. We currently offer three lines of electrodeionisation modules: the VNX, the LX and the MX series. We also offer supplementary equipment ranging from DC Power Controllers to Piping Adapters to fit your system requirements.

Essentially different from conventional ion exchange resin purification systems.

Our continuous electrodeionisation modules utilize ion exchange resins primarily as a bridge to allow electric current to pass through the electrodeionisation cell. This allows us to operate the modules without any brine injection or concentrate recycle (unlike alternative systems). Additionally, the ion exchange resins are used to 'polish' the purified water stream by removing minute quantities of silica, carbon dioxide and other contaminants. The ion exchange resins are continually being regenerated by the dissociated hydrogen and hydroxyl ions that have been created by the electric current. Electrodeionisation utilizes no chemical regenerants and creates no hazardous wastes and produces very high purity water.

CEDI Product Range

The CEDI product range includes the following:

1. MX series (low flow lab/commercial)
2. LX (medium flow industrial)
3. VNX series (high flow industrial)

The LX range is consist of the following specialist purpose series of models:
LX series (Industrial), LX-HI series (Pharmaceutical), LX-MK series (E-Cell replacement), LX-Z (PVC version), LX-SP series (specialty process module), LXMP180 (upgrade for P180 module)
MX Series
SizesMX30MX60MX125MX250MX500
Min0.060.130.270.551.1
Gpm (lph)-15-30-62.5-125-250
Nom0.130.260.551.12.2
Gpm (lph)-30-60-125-250-500
Max0.190.390.8251.653.3
Gpm (lph))-45-90-187-375-750
LX Series
SizesLX-04LX-10LX-18LX-24LX-30
Min12.54.56.257.5
Gpm (lph)-0.22-0.57-62.5-1.1-1.7
Nom25912.515
(use to design)-0.44-1.14-2-2.84-3.4
Max37.513.518.7522.5
Gpm (lph))-0.67-1.7-3.1-4.26-5

VNX Series

Modules are building blocks that allow flexibility in system design. Modules can be oriented horizontally or vertically where up to 3 modules can be connected inline.

A CEDI module has a flow rate of 50 gpm (11 m3/h) with current distribution. Uses a plate and frame construction and Fiberglass housing with integral Flexmount end block for leak-free operation up to 100 psig (7 bar).

Equal to or better than Ionpure LX modules in:
  • Feed water requirements
  • Module performance
  • Reliability

  • Lower overall system costs
  • Reduce piping cost
  • Reduce frame cost
  • Easier assembly
  • O-ring seals for guaranteed leak-free operation
  • Continuous operation up to 100 psig (7 bar), 113°F (45°C)
  • Resin filled concentrate and electrode compartments to avoid concentrate brine injection
  • Concentrate recirculation not required
  • Cost-effective thick cell (membrane utilization)

  • We can supply:
    The best product for your application The experience to know how to use the product correctly The support you when you need help

    Product: The most robust CEDI device with the simplest operation and maintenance producing very high purity water
    Experience: Ionpure has the most experience in CEDI with proven reliability worldwide in Power, Microelectronics, Pharmaceutical etc.
    Support: Local support via our local OEM network with Ionpure factory and technical expert