This is because the photolytic degradation of bromate compounds is dominant degradation mechanism for THMs removal.
"However, bottled water has been recalled due to contamination by arsenic, bromate, cleaning compounds, mold and bacteria". It soon emerged from the witnesses that there was no evidence bottled water is any dirtier than tap water -- and in some cases, such as lead, the bottled water standards are more stringent.
The presence of bromide ions in waters treated with ozone can lead to bromate ions and brominated compounds formation, potentially carcinogenic.
Other polonium compounds include acetate, bromate, carbonate, citrate, chromate, cyanide, formate, hydroxide, nitrate, selenate, monosulfide, sulfate and disulfate.
A local laboratory was using tap water for experiments and had discovered compounds called bromates, which studies have associated with cancer.
Contaminants that have been successfully removed from aqueous solutions in the presence of Fe0 include arsenic, bacteria, bromate, chromate, dyes, halogenated organics, mercury, nitrate, nitroaromatics, pesticides, phenolic compounds, phosphates, selenium, uranium, viruses and zinc (Richardson and Nicklow 2002; Henderson and Demond 2007; Guan et al. 2015; Naidu and Birke 2015; Zou et al. 2016).
Then, bromine solution (1N/ HOAc, 30 mL) was added to oxidize compound 4 in HOAc at refluxing temperature to generate the 8-substituted BBR derivatives bromate 5, which was treated with excessive AgCl in MeOH at room temperature thus converted into the corresponding chloride form.
Thus, various sodium-based compounds were first investigated and three candidate substances satisfying several criteria were selected; sodium bromate (NaBrO3), sodium chlorate (NaClO3), and sodium tetrafluoroborate (NaBF4).
(Bromate, a suspected carcinogen, was discovered in the water).
Alternatively, bromide may be oxidized to bromate by hypochlorous acid.
