De-ionization is the removal or reduction of positive ions called cations and negative ions called anions from the water supply. High purity water from 1.0 to 18.3 megaohms/cm and a silica level of .10ppm to 0.01ppm or lower can be produced. The cation resin is converted to the hydrogen form and exchanges positive ions for hydrogen. The Anion resin is converted to the hydroxyl form and exchanges the negative ions for hydroxyl.
Resins are designed specifically for deionizer applications regenerating with approximately 6.4 pounds of 100% of HCI per cubic foot for cation resin and 8.0 pounds of 100% NaOH per cubic foot for anion resin. Lakeside resins provide high chemical and physical stability, lower pressure drop and greater resistance to bead breakage. Type 1 Anion resins are standard to produce the lowest silica leakages and 10% cross-linked cation resins for durability and performance. Standard Cation regeneration is with 32% HCl. Standard systems utilize pressure compensating educators for drawing chemical.
We recommended that the total chloride and sulfate content in the dilution water should be below 25 ppm to minimize the corrosion potential. Hard minerals and salts in dilution water can increase metal corrosion, cause formation of scale and deposits