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Enhanced degradation of benzo[a]pyrene and toxicity reduction by microbubble ozonation

Authors
Nam, GwiwoongMohamed, Mohamed M.Jung, Jinho
Issue Date
2021
Publisher
TAYLOR & FRANCIS LTD
Keywords
Acute toxicity; benzo[a]pyrene; degradation; microbubble; ozonation
Citation
ENVIRONMENTAL TECHNOLOGY, v.42, no.12, pp.1853 - 1860
Indexed
SCIE
SCOPUS
Journal Title
ENVIRONMENTAL TECHNOLOGY
Volume
42
Number
12
Start Page
1853
End Page
1860
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/138463
DOI
10.1080/09593330.2019.1683077
ISSN
0959-3330
Abstract
The microbubble technique has drawn great attention for efficient utilization of ozone for advance oxidation processes. Therefore, in this study, microbubble ozonation was investigated to evaluate the removal efficiency and toxicity reduction of benzo[a]pyrene. Compared with conventional macrobubble ozonation, microbubble ozonation produced higher concentrations of hydroxyl radicals and ozone in aqueous solutions, resulting in more efficient and persistent degradation of benzo[a]pyrene. Moreover, microbubble ozonation completely removed the acute toxicity of benzo[a]pyrene to Daphnia magna, whereas the toxicity reduction by macrobubble ozonation was not consistent owing possibly to toxic degradation products. These findings suggest that microbubble ozonation is a promising technique in terms of both chemical degradation and toxicity reduction of organic pollutants.
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College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles

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JUNG, Jin ho
생명과학대학 (환경생태공학부)
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