The effect of bromide ion on the formation of organohalogen disinfection by-products during ozonation
Journal
Ozone: Science and Engineering
Journal Volume
18
Journal Issue
4
Pages
349-361
Date Issued
1996
Author(s)
Abstract
Abstract Ozonation of water containing bromide ion (Br−) leads to the formation of brominated disinfection byproducts (DBPs). The purpose of this study was to examine the influence of bromide ion upon the distribution and variation of organohalogen DBPs. Bromide ion concentration had a negative effect on chloroform formation as opposed to increased formation of brominated trihalomethanes (THMs). The results of factor analysis lead clearly to the interpretation that the bromide ion was strongly correlated with brominated THMs and less strongly with brominated HANs (haloacetonitriles). Compared to THMs and HANs, brominated HAAs (haloacetic acids) demonstrated a relatively weak correlation to bromide ion concentration. The addition of alkalinity enhanced the formation of chloroform when ozonation time was 10 to 30 minutes, while concentrations of other bromide ion-containing THMs decreased with increasing alkalinity.
SDGs
Type
journal article