Regarding the high levels of bromide ions in wastewater
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I would like to ask: wastewater contains a large amount of bromide ions, and it is alkaline in nature. Is it feasible to use sodium hypochlorite to oxidize the bromide ions?
Both bromine and chlorine are halogens, so it’s not feasible.
Shouldn’t the oxidizing power of sodium hypochlorite be stronger than that of bromine?
In the periodic table, bromine is more reactive than chlorine; chlorine cannot displace bromine. The only method for removing bromine from water is precipitation, but it is too costly.
This post was last edited by qugd on 2015-12-7 14:02. Sodium hypochlorite can oxidize bromide ions, but it is necessary to adjust the pH to an appropriate level as well as use an appropriate concentration. If the bromine content is high, it is best to combine this with a bromine recovery process; bromine is a halogen that is much more expensive than chlorine and possesses high commercial value. If you are interested, you can refer to materials on brine chemicals.