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Removal of Iopromide and Its Intermediates from Ozone-Treated Water Using Granular Activated Carbon

Title
Removal of Iopromide and Its Intermediates from Ozone-Treated Water Using Granular Activated Carbon
Author
전병훈
Keywords
Iopromide; Natural organic matter; Granular activated carbon; Adsorption; Ozonation
Issue Date
2015-10
Publisher
SPRINGER
Citation
WATER AIR AND SOIL POLLUTION, v. 226, NO 10, Page. 1-9
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.
URI
https://link.springer.com/article/10.1007%2Fs11270-015-2594-0http://hdl.handle.net/20.500.11754/28499
ISSN
0049-6979; 1573-2932
DOI
10.1007/s11270-015-2594-0
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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