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Industrial Electro-Deionization Systems

Moderate to Large Size Systems 10,800 to 86,400 GPD / 41 to 327 M3/D

EDI removes ions from aqueous streams, typically in conjunction with reverse osmosis (RO) and other purification devices. Our high-quality modules continually produce ultrapure water up to 18 MΩ-cm. The typical application is polishing after a reverse osmosis system which replaces mixed bed polishing and the associated hazardous chemicals used for resin regeneration

Standard Features

  • Simple systems: no concentrate recirculation
  • Small, compact modules (light weight)
  • Produces water up to 18 MΩ-cm
  • No chemicals or exchange services required
  • Control package with monitoring capability
  • Easy and limited maintenance

Benefits of EDI

  • Consistent water quality
  • Continuous operation
  • No regeneration chemicals
  • No hazardous waste
  • Reduces facility requirements
  • Cost effective capital process
  • Simpler system—no concentrate recirculation
  • Simple operation (no batch DI resin changes)
  • Modular system more flexible, easy to expand
  • Multiple module less risky than one large stack
  • Safer-lower voltages
  • Easy to integrate the EDI System
  • Modules compact-smaller system footprint
  • No leaking- proven module design
  • Dial in product water quality (by controlling Amps)

Applications

  • USP Purified Water
  • Laboratory Water
  • Portable Exchange EDI
  • Power Generation Boiler
  • Cosmetics
  • Electronics

 

How the Electro-Dionization System Works

The need to satisfy the increasing demand for high purity water can be achieved using electrodeionization (EDI) equipment. The EDI process replaces conventional DI mixed resin beds to produce deionized water.

Unlike DI resin, EDI does not require shutdowns for replacing resin beds or for resin regeneration using chemicals. Because of this, EDI minimizes water quality upsets and minimizes operating costs.

EDI has become the solution of choice, lower operating expenses and fewer maintenance requirements makes EDI the cost effective choice over mixed bed or dual-bed polishing.

Pure Aqua supplies a full line of standard and fully customizable Electro-Deionization systems, all of which are engineered using advanced 3D computer modeling and process design software for accurate and customized solutions

Model#
Flow Rate (GPM)
Voltage (DC)
Current (Amp)
Product
Conc.
Elect.

Typical

Operation

Max.
Typical (4 ppm RO Feed)
Maximum
(15 ppm RO Feed)
Average
Peak
EDI-1
7.5
10
0.75
0.075
250-300
400
3
8
EDI-2
15
20
1.50
0.150
250-300
400
6
16
EDI-3
22.5
30
2.25
0.225
250-300
400
9
24
EDI-4
30
40
3.00
0.300
250-300
400
12
32
EDI-5
37.5
50
3.75
0.375
250-300
400
15
40
EDI-6
45
60
4.50
0.450
250-300
400
18
48
EDI-7
52.5
70
5.25
0.525
250-300
400
18
48
EDI-9
60
80
6.00
0.600
250-300
400
18
48

All specifications are subject to change without notice

We also supply Custom Engineered Solutions the following:

  • Multi-Media Pretreatment
  • Carbon Pretreatment
  • Water Conditioning
  • Chemical Metering Pumps
  • Ultra-Violet Sterilizers
  • Ozone Sterilization

 

 

       
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