EDI – 007
EDI Electrodeionization System


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EDI–SERIES ELECTRODEIONIZATION SYSTEMS

AXEON® EDI – Series Electrodeionization Systems are a superior option to conventional mixed-bed deionization. EDI does not require regeneration and there are no chemicals used for operation. Ultrapure water is processed by taking reverse osmosis permeate water and feeding it into the EDI system which uses electricity to continuously drive ions through deionization resins and ion selective membranes, thus producing a small concentrate stream.

The AXEON EDI – Series Electrodeionization Systems are available in four flow ranges up to 7 gallons per minute (GPM). Additional systems can be arranged in parallel for increased capacities.


FEATURES
  • Easy Operation with Minimal Instrumentation
  • 2 MΩ Dl Sensor with Red/Green Indicator Lights
  • Compact Aluminum Skid
  • Sleek, Clean, Modular Design
  • Operates Independently from RO System
  • Internal Flow Orifices
  • Includes 5-Micron Pre-filter
  • Feed, Product and Concentrate Sample Ports
  • No Concentrate Recirculation or Brine Injection
  • Thin-Cell Efficient Technology
  • Thin-Concentrate Non-Scaling Technology
  • Unique Non-Scaling Electrode System
  • Patented Excellion™ Membrane

BENEFITS
  • No Operator Flow Settings; Flow Control is Internal
  • Reliable, Uninterrupted 24/7 Operation
  • Operating Cost (Electrical) is Pennies Per Day
  • Greatly Reduces Disruptive Customer Site Visits
  • Chemical-Free, Environmentally Friendly
  • Flexible – Easy to Expand Modular EDI System Design
  • Reliable – No Recirculation System Components to Fail
  • Ideal Whenever Ion Exchange Tanks are not Economically or Logistically Feasible
  • Ultrapure Water Quality Greater than 2 mΩ / cm (0.05 µS / cm)
  • High Recovery of 90%+
  • Ideal to Lease for Recurring Revenue and Rapid ROI
SPECIFICATIONS
MODELS EDI – 001 EDI – 003 EDI – 005 EDI – 007
Design
Nominal Capacity (gpm / lpm) 1 / 3.8 3 / 11.3 5 / 18.9 7 / 26.5
Operating Pressure Nominal-Maximum (psi / bar) 40-75 / 3-5 40-75 / 3-5 40-75 / 3-5 40-75 / 3-5
Nominal Discharge Concentrate + Electrode (gpm / lpm) 0.10 / 0.38 0.3 / 1.14 0.5 / 1.9 0.7 / 2.65
Nominal Recovery (%) 90 90 90 90
Feed Water Specifications
Feed ConductivityA Optimum FCE < 9µS / cm Max FCE 33µS / cm
Total CO2 + HCO3 < 5 mgn CO2 + HCO3 · (Optimum < 2 mg / l CO2 + HCO3 )
Hardness < 1.0 ppm @ 90% recovery (ask about higher hardness)
Organics < 0.5 ppm TOC
Metals < 10 ppb
Feed Temp Optimum: 15° C-30° C Range: (5° C-35° C)
Feed pH Optimum: 7.0-7.5 Range: 5.0 -9.5
Feed Chlorine ND
Silica, SiO2 < 0.5 ppm
System Component Specifications
Pressure Gauge At Filter Outlet: Stainless Steel Case, Bronze Internals. Glycerin-filled
Pressure Regulator Nickel Plated Bronze 3/4″. Set at 40 psi (2.7 bar)
Piping 3/4″ PVC, Schedule 80
Valves Inlet Isolation Ball Valve, 2 Sample Valves
Flow Control Product, Concentrate & Electrode Flow Control Orifices
Switches Off/On Switch, Feed Low Pressure Cut-out, Concentrate Low Flow Cut-out
Filters 5 Micron Prefilter, 4.5″ x 10″
Concentrate 1/2″ QC
Feed / Product 3/4″ FNPT
Product Quality 2 MΩ Dl Quality Indicator with Red/Green Indicator & Alarm Typical Product Quality: 5-18.2 MΩ (Depends on FCEA of RO Permeate)
System Electrical
Power Usage –Nominal 200W 300W 400W 600W
Power Usage –Maximum .8kW 1.5kW 1.6kW 1.5kW
Electrical Input 178-264 VAC, 50/60Hz, 1–Phase, FLA 20A
System Dimensions
Approximate DimensionsB L x W x H (in /cm) 25.75 x 25.75 x 60 / 65.41 x 65.41 x 152.40 25.75 x 25.75 x 60 / 65.41 x 65.41 x 152.40 25.75 x 25.75 x 60 / 65.41 x 65.41 x 152.40 25.75 x 25.75 x 60 / 65.41 x 65.41 x 152.40
Approximate Weight (lbs / kg) 125 / 56 137 / 62 145 / 66 161 / 73

Note: EDI Systems must have a reverse osmosis permeate feed at 30 -40 psi and a flow rate that is 10% greater than the rated product flow of the EDI.

A. FCE = Conductivity + 2.79 (CO2 ) + 1.94 (SiO2). Example: Conductivity = 5.0µS / cm, CO2 = 3.5 mg / l, SiO2 = 0.5 mg / l, FCE = 5.0+2.79 (3.5)+1.94 (0.5) = 15.71µS / cm Note: Conductivity (µS / cm) ~ 2.22 TDS (mg / l)
B. Does not include operating space requirements.

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