Mechanisms of Phenol Ozonation—Kinetics of Formation of Primary and Secondary Reaction Products
作者： Maaike K. Ramseier , Urs von Gunten
DOI: 10.1080/01919510902740477
关键词:
摘要: Organic acids are part of assimilable organic carbon (AOC) formed from natural matter (NOM) during ozonation for drinking water production. To elucidate the formation acids, phenol as surrogate compound NOM was ozonated while suppressing reactions ·OH radicals by addition tert-butanol. Batch experiments show benzoquinone (40 and 18%), catechol (33 1%), cis,cis-muconic acid (6 3%), hydroquinone (2 7%) to be most abundant primary products at pH 7 3, respectively. The tertiary product oxalic obtained in similar yields (0.8%) lake (1.6%). Together with other low molecular weight it upon small ozone exposures, shown time-dependent time ranges 0.4–23 0.07–1.0 seconds 3 7.25,
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