Because it does not form TTHM or HAA disinfection byproducts (DBP), chlorine dioxide is ideal for pre-oxidation of surface water for drinking water applications. Chlorine dioxide oxidizes iron and manganese, is effective over a wide pH range, and does not react with ammonia. It is used for Legionella control, membrane pre-treatment and biofouling control, algae control, and disinfection/oxidation of ammonia-rich waters such as fish farming.
The Capital Controls® L30 series generators use commercially available 25-31% sodium chlorite and 31% hydrochloric acid to produce chlorine dioxide for water treatment. The underwater design employs a submerged reaction chamber and inline configuration, providing maximum yield and safety, without requiring chlorine gas or sodium hypochlorite (bleach).
The CAPITAL CONTROLS® L30 chlorine dioxide generator is a two-chemical system, utilizing 31 wt % hydrochloric acid and 25 – 31 wt % sodium chlorite in the production of chlorine dioxide. Standard chlorine dioxide generator units are available in a range of capacities from 250 lb/day to 1500 lb/day (5 kg/h to 30 kg/h) of chlorine dioxide