文档介绍：Effect of ammonia and binations on the
formation of ozonation and chlorination by-products
in bromide-containing water
Huan WANG, Dongmei LIU, FuyiCUI, Qi ZHU, Tongmian LIU
School of Municipal and Environmental Engineering
Harbin Institute of Technology
Harbin , China
e-mail:wh_hit@
Abstract—Ammonia addition and pH depression can inhibit the trihalomethanes (THMs) will be changed in the presence of
formation of bromate in ozonated drinking water by reacting with bromide ions[4]. Further, the presence of a large amount of
-
free bromine (HOBr/OBr ), an intermediate in bromate formation, bromide ions would substitute the chloride to form the
to form bromamines and other anic disinfection hypobromous acid (HOBr), which could also react with
byproducts. This study was performed to assess the effects anic matters to subsequently form the brominated DBP[6,14],
ammonia and pH binations on the formation of bromate
and the reactivity of HOBr is stronger than that of
and THMs during ozonation and chlorination in semi-batch [7]
reactor. The results show that the effects of bromate and THMs HOCl .ic studies also showed similarities in THMs and
formation were more strongly influenced by ammonia bromate formation during chlorination or ozonation of the
concentration than pH value. The addition of ammonia same water source[8].
dramatically dec