Removal of Iopromide and Its Intermediates from Ozone-Treated Water Using Granular Activated Carbon
- Authors
- Ahn, Yong-Tae; Cho, Dong-Wan; Kabra, Akhil N.; Ji, Min-Kyu; Yoon, Yeojoon; Choi, Jaewon; Choi, Il-Hwan; Kang, Joon-Wun; Kim, Jung Rae; Jeon, Byong-Hun
- Issue Date
- Oct-2015
- Publisher
- SPRINGER INTERNATIONAL PUBLISHING AG
- Keywords
- Iopromide; Natural organic matter; Granular activated carbon; Adsorption; Ozonation
- Citation
- WATER AIR AND SOIL POLLUTION, v.226, no.10, pp.1 - 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- WATER AIR AND SOIL POLLUTION
- Volume
- 226
- Number
- 10
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156221
- DOI
- 10.1007/s11270-015-2594-0
- ISSN
- 0049-6979
- Abstract
- The potential of granular activated carbon (GAC) to remove iopromide and its intermediates from ozone- treated river water was evaluated. Mass spectrum analysis showed that ozone treatment lead to partial removal of iopromide (m/z 791.8) with generation of various intermediates. GAC demonstrated a lower iopromide adsorption (1.60 mu g/g) in the presence of natural organic matter (NOM) compared to NOM-free water (12.54 mu g/g), indicating the inhibitory effect of NOM on iopromide adsorption. Ozone treatment of the influent reduced the inhibitory effect of NOM by altering its composition and inducing polarity shift. GAC post- treatment resulted in improved removal of residual iopromide and its intermediates from the ozone- treated influent. Application of such combined treatment of ozonation followed by GAC adsorption can be an effective strategy for the removal of iopromide and its intermediates from contaminated water streams.
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