Electrodeionization system (EDI) is a breakthrough water treatment technology to achieve high purity levels with low conductivity to ensure high-efficiency demineralization process. This technology does not use any chemical treatments and often referred to as a water polishing treatment; it is a continuous process to treat the RO permeate.
To ensure efficient electrodeionization process, the feed has to be purified by Reverse Osmosis system and should be with low TDS, which helps in achieving very high purity levels. The ion exchange resins help to retain the ions and facilitates to be transported across the ion exchange membranes. To have increased performance, the feed water should be free from CO2 and other dissolved gases.
An Electrodeionization System has multiple electrochemical cells which in turn consists of an electrode and an electrolyte. At the anode, the electrons leave the cell and oxidation occurs and at the cathode, the electrons enter the cell and reduction occurs. Electrolytes or Ionic solutions contain free ions which is an electrically conductive medium. When the feed water from the RO is passed through the cells, the ion-selective membranes allow the positive ions to separate from the water toward the cathode and the negative ions toward the anode, thereby highly pure deionized water is produced.EDI is a continuous process and utilizes chemical-free regeneration.
1. Innovative design prevents internal and external leaks
2. Allows easy cleaning of chambers
3. Continuous Operation
4. Total elimination of chemicals for regeneration
5. Low Power Consumption
6. No Pollution
7. Very less space for installation
Austro Water Tech’s EDI systems facilitate superior performance by size reduction and maintaining reliable continuous product quality for ultra-pure industrial water applications. Our innovative designs ensure easy electrodeionization troubleshooting.