Formation Of Aldehydes During Ozonation
作者:
Daniel S. Schechter,
Philip C. Singer,
期刊:
Ozone: Science & Engineering
(Taylor Available online 1995)
卷期:
Volume 17,
issue 1
页码: 53-69
ISSN:0191-9512
年代: 1995
DOI:10.1080/01919519508547577
出版商: Taylor & Francis Group
关键词: Ozone;Formaldehyde;Aldehydes;Assimilable Organic Carbon;Byproducts of Ozonation;Acetaldehyde;Glyoxal;Methyl Glyoxal;Drinking Water Treatment
数据来源: Taylor
摘要:
This study investigated the formation of aldehydes after ozonation of three real and three model waters reconstituted from hydrophobic organic material. The four main aldehyde species formaldehyde, acetaldehyde, glyoxal, and methyl glyoxal were analyzed. Formaldehyde was the dominant species formed as a result of ozonation. The different waters varied greatly with respect to aldehyde production under similar treatment conditions. Studies conducted with model waters allowed for exploring aldehyde formation as a function of various water quality parameters. Overall, the hydrophobic organic extracts appeared to have greater aldehyde formation potential than the hydrophilic organics. Aldehydes were formed in direct proportion to the total organic carbon (TOC) concentration of the water at a 1:1 ozone-to-TOC ratio. Greater aldehyde formation was observed at lower ozonation pH values. Bromide ion and inorganic carbon added to model waters appeared to have no effect on aldehyde production. Finally, Assimilable Organic Carbon (AOC) measurements exhibited a strong correlation between aldehyde production and AOC production.
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