Chlorine dioxide (ClO2) is a disinfectant / oxidizer commonly used in the treatment of potable and waste water as an alternative to the use of chlorine gas. Apart from having a disinfectant and oxidizing power superior to chlorine, ClO2 does not react with water, nor combine with the organic matter, which means that trihalomethanes (THM) are not generated by its use. In addition, its oxidizing / disinfecting power is stable over a wide pH range.
Chlorine dioxide is normally generated on-site using different technologies. Apliclor Water Solutions has chlorine dioxide generators based on the oxidation of sodium chlorite by hydrochloric acid or by chlorine gas. The concentrations of the reagents used depend in each case, on the generation capacity of each unit, and for both technologies the generation process can be manual or fully automatic, based on the available field signals.