Bromate In Water Ozonation
The bromate ion, BrO3-, can be formed from a reaction of bromide, Br-, and ozone, O3, now an expected reaction during ozonation as a process of water disinfection. Recently, cities have substituted ozone for chlorine as a disinfectant. Bromide is a natural constituent of sea water, which becomes commingled with numerous freshwater estuarine rivers serving as sources of municipal water supply on the ocean coasts of the United States and in other parts of the world. Bromate has been named an expected carcinogen to humans, and it must be minimized — EPA wishes to zero — during water treatment and distribution.
Bromate and Other Bromine-Ion Dangers
Ozone has shown promise as a substitute for chlorine as a …