Solutions / Industrial processes
Electrodeionization (EDI)
Continuous final polishing, with no acids or caustic soda. Continuous ultrapure water without chemical regeneration. Ideal for pharmaceuticals, laboratories and microelectronics.
EDI module at QualipharmUSP purified water
What it is and how it works
Electrodeionization (EDI or CEDI) combines ion exchange resins, selective membranes and an electric field. Ions remaining after reverse osmosis are captured by the resin and pulled by the electric current into a concentrate stream. Because electricity continuously regenerates the resin, the unit produces high-purity water without stopping and without regeneration chemicals.
- 1The resin captures the ionsThose remaining after reverse osmosis.
- 2The current pulls them awaySelective membranes move them into the concentrate stream.
- 3Continuous regenerationElectricity regenerates the resin, without chemicals or shutdowns.
Benefits
- Stable ultrapure water quality 24 hours a day.
- No chemical regenerations or handling of acids and caustics.
- Lower operating cost than ion exchange beds.
- Compact, modular design.
- Simple operation with integrated monitoring.
Technical features
- Generation of purified water (PW) and water for injection (WFI).
- Installed after the reverse osmosis.
- Control panel with data monitoring.
- Configuration based on flow and required quality.
Quick facts
- ProducesPurified water (PW) and WFI
- RegenerationElectrical and continuous
- LocationAfter the reverse osmosis
- DesignCompact and modular
Applications
Industries and uses where this technology solves process water.
- Pharmaceutical industry (USP purified water)
- Laboratories
- Healthcare
- Microelectronics
- High-pressure boilers
Projects where we use it
Works well with
Every technology performs better within a well-designed treatment train.
- MembranesReverse osmosisMembranes that remove dissolved salts, metals, bacteria and viruses to obtain high-purity water.View solution
- Polishing and disinfectionUV disinfectionUltraviolet lamps that inactivate bacteria, viruses and other microorganisms without altering the water.View solution
- ControlOnline monitoringSensors, controllers and monitoring systems to measure and control water quality and plant operation in real time.View solution
Need electrodeionization (EDI) for your process?
Send us your water analysis and the flow you need. We will propose the right equipment, with local installation and technical service.
Contact us
Office in EcuadorDe los Eucaliptos E8-70 y calle E9, Quito 170307
Phone+593 99 871 1330
+593 2 280 8126
Emailinfo@sanitronec.com
Office hoursMonday to Friday
9:00 a.m.–12:00 p.m. and 1:00–6:00 p.m.
Office in the United States9995 NW 9th St. Circle, Suite 3, Miami, FL 33172
+1 786 972 2008