Electro-deionization (EDI) is a water treatment process that removes ionizable species from liquids using electrically active media and an electrical potential to effect ion transport. It differs from other water purification technologies such as conventional ion exchange in that it does not require the use of chemicals such as acid and caustic for reactivation. EDI is commonly used as a polishing process to further remove trace ionic salts of the Reverse Osmosis (RO) permeate to high purity water of multi-megohm-cm quality.
Advantages of Electro-Deionization (EDI)
EDI utilizes chemical-free regeneration. This means a safer workplace because there is no need to store or handle hazardous acid and caustic. There are fewer regulation concerns due to the absence of these corrosive chemicals and there is no waste, neutralization or environmental hazards.
EDI is a continuous process. The ion exchange resins are being continuously being regenerated by the DC electric field. There is no "breakthrough" of ions as happens in conventional ion exchange operations, therefore the quality of the water remains at a constant high level of purity. The electric field also provides a bacteriostatic environment inside of the EDI cell, inhibiting the growth of bacteria and other organisms.
EDI has significantly lower operating costs than conventional ion exchange processes. Only a relatively small amount of electric power is needed to provide high purity water. The lack of acid and caustic regeneration means less operator attention and lower labor costs. Capital costs can also expect to be lower, especially because no chemical storage, pumping and neutralization equipment is required.
EDI has a significantly smaller footprint than conventional ion exchange processes. This means less plant space will be required to provide the same quantity of water.
- Consistent and predictable results
- Continuous, simple operation (no DI batch changes)
- EDI is cost effective
- No hazardous waste (and cost associated)
- No regeneration chemicals (and cost and risk)
- Reduced facility requirements
- Adjustable DC Power Supply
- Automatic Low Feed Flow Alarm
- Sediment Prefilter
- Prefilter Pressure Gauges
- 316SS Pressure Gauges
- PVC and Polypropylene Piping and Valves
- Conductivity and Resistivity Meters
- Sample Valves
- Compact, Modular Design
- Product and Feed Flowmeters
- Leak-free design
- pH, Temperature, TOC, Turbidity Instruments
- Special Color or Private Label
- Concentrate Stream Recycling
- CO2 Removal Cartridge
- Clean-in-Place System
- Sanitary Piping and Fittings
AMCO has teamed up with a Major Manufacturer of Electro deionization to bring you Deionized quality water at an affordable price to you. No up-front Capital Costs, Flexible plans, and service options. Flow rates available from 5 gpm to 1000 gpm.
200 gpm RO-EDI process for Power Generation
Please click image for a larger view
120 gpm EDI unit for Power Generation
PRODUCTION OF EDI GPM (m3/hr)
POWER REQTS 60Hz (50Hz) Amps
APPROXIMATE SHIPPING DIMENSIONS (L x W x H) Inches
APPROXIMATE SKID DIMENSIONS (L x W x H) Inches
|AMCO-EDI-0.5||0.5 (0.11)||90-95||1||0.3 (0.4)||24 x 24 x 54||24 x 24 x 54||75|
|AMCO-EDI-1.0||1.0 (0.23)||90-95||1||0.6 (0.7)||24 x 24 x 54||24 x 24 x 54||80|
|AMCO-EDI-4.0||4.0 (0.90)||90-95||1||2.0 (2.0)||24 x 24 x 54||24 x 24 x 54||90|
|AMCO-EDI-7.0||7.0 (1.60)||90-95||1||3.0 (3.0)||24 x 24 x 54||24 x 24 x 54||105|
|AMCO-EDI-10.0||10.0 (2.30)||90-95||1||4.0 (5.0)||76 x 48 x 72||64 x 37 x 60||125|
|AMCO-EDI-14.0||14.0 (3.18)||90-95||2||6.0 (7.0)||76 x 48 x 72||64 x 37 x 60||250|
|AMCO-EDI-20.0||20.0 (4.54)||90-95||2||8.0 (10.0)||76 x 48 x 72||64 x 37 x 60||275|
|AMCO-EDI-30.0||30.0 (6.81)||90-95||3||12.0 (15.0)||76 x 48 x 72||64 x 37 x 60||300|
|AMCO-EDI-40.0||40.0 (9.10)||90-95||4||16.0 (19.0)||76 x 48 x 72||64 x 37 x 60||350|
|AMCO-EDI-60.0||60.0 (13.63)||90-95||6||20.0 (24.0)||76 x 48 x 72||64 x 37 x 60||400|
|AMCO-EDI-80.0||80.0 (18.20)||90-95||8||24.0 (29.0)||76 x 48 x 72||64 x 37 x 60||450|
|AMCO-EDI-100.0||100 (22.71)||90-95||10||28.0 (33.0)||76 x 48 x 72||64 x 37 x 60||500|
|AMCO-EDI-120.0||120 (27.25)||90-95||12||32.0 (39.0)||76 x 48 x 72||64 x 37 x 60||550|
- Feed water must be Reverse Osmosis permeate or equivalent
- Feed water conditions, Conductivity, Flows, and Recovery in accordance with EDI module manufacturer's recommendations
10402 Rodney Street
Pineville, NC, USA 28134
Phone: (704) 889-7281
Fax: (704) 8897270
Proudly manufactured in the USA for over 100 years.