Bromine is found in sea water and exists as the bromide ion at a level of about 65 mg/l. Bromine has been used in swimming pools and cooling towers for disinfection. However, adding bromine to drinking water is not recommended. Ethylene bromide is used as an anti-knock additive in gasoline, and methyl bromide is a soil fumigant. Bromine in water is extremely reactive and corrosive, and will produce irritation and burning to exposed tissues. Over 0.05 mg/l of bromide in water may indicate the presence of industrial wastes, possibly from the use of pesticides of biocides containing bromine. Bromide is extensively used in the pharmaceutical industry, and occurs normally in blood in the range of 1.5 to 50 mg/l.
Bromine Water Treatment - Reverse Osmosis Systems will remove 93 -96 % of the bromide from drinking water. Since bromine is a disinfectant, it along with the disinfection by-products can also be removed with activated carbon water filters, Water Ultrafiltration, or Electrodialysis.