Produce 99.99% pure water by simply attaching this convenient deionisation filter with RO unit. Convenient post RO filtration DI unit (RO/DI unit) provides crucial supplemental filtration to remove most impurities for pure polished product water. Produce 99.99% pure water. It will produce water with a TDS of 0 ppm and conductivity less than 0.1uS/cm.
In Deionisation two types of synthetic resins are used, one to remove positively charged ions (cations) and another to remove negatively charged ions (anions). Cation deionisation (DI) resins remove cations, such as calcium, magnesium and sodium and replace them with the hydrogen (H+) ion. Anion deionisation resins remove anions, such as chloride, sulfate and bicarbonate and replace them with the hydroxide (OH-) ion.
In Deionisation, the displaced H+ and OH- combine to form H2O.