Brominated-trihalomethane formation from phenolic derivatives as a model of humic materials by the reaction with hypochlorite and hypobromite ions

Among the 21 phenolic derivatives tested for the model system of the disinf ection process in the natural water containing humic acid, 2-hydroxytoluene and 2,6-dihydroxybenzoic acid produced high yields of CHBr3 under the co-e xistence of NaOCl and NaOBr. In the study of distribution of THMs produced, the amount of CHBr3 increased with the relative concentration of NaOCl add ed to NaOBr. These results were similar to the case of halogenation of the humic acid under the co-existence of NaOCl and NaOBr.