MONOCHLORAMINE WATER DISINFECTION SYSTEM AND METHOD

A water disinfection system that generates monochloramine through the reaction of a chlorine source, such as sodium hypochlorite, and an ammonium source, such as ammonium sulfate that is intended to be used in the distal ends of a water supply system. The system measures the total water flow rate of the water stream. The system also comprises a controller that controls the feed rate of the chlorine source and ammonium source based on the total water flow rate. The system also comprises various sensors such as an oxidation-reduction potential sensor, a free chlorine sensor and a total chlorine sensor. The system allows simple management of the generation of monochloramine and is particularly suitable for use in commercial or residential buildings.