Reaction pathways and kinetics of butylated hydroxyanisole with UV, ozonation, and UV/O3 processes
作者： T.K. Lau , W. Chu , N. Graham
DOI: 10.1016/J.WATRES.2006.11.021
关键词: Advanced oxidation process 、 Photochemistry 、 Reaction mechanism 、 Chemistry 、 Ultraviolet 、 Kinetics 、 Demethylation 、 Butylated hydroxyanisole 、 Reaction rate constant 、 Chemical decomposition
摘要: The chemical degradation of the endocrine disrupting chemical, butylated hydroxyanisole (BHA), was investigated by different treatment processes including ultraviolet (UV) irradiation, ozonation (O3), and UV/O3. O demethylation, dimerization, oxidation have been found to be main mechanisms. A systematic decay pathway proposed based on ten identified intermediates in studied processes, a unique leading formation precipitates process. An unconventional minimum-type variation BHA rate constants from acidic caustic range has for both UV/O3 processes. formed during can removed process optimize treatment, while offer relatively fast clean degrade its associated intermediates.
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