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

被引：7
|
作者：
Ahn, Yong-Tae [1 ]
Cho, Dong-Wan [1 ]
Kabra, Akhil N. [2 ]
Ji, Min-Kyu [1 ]
Yoon, Yeojoon [1 ]
Choi, Jaewon [3 ]
Choi, Il-Hwan [3 ]
Kang, Joon-Wun [1 ]
Kim, Jung Rae [4 ]
Jeon, Byong-Hun [2 ]
机构：
[1] Yonsei Univ, Dept Environm Engn, Wonju 220710, Gangwon Do, South Korea
[2] Hanyang Univ, Dept Nat Resources & Environm Engn, Seoul 133791, South Korea
[3] Korea Water Resources Corp, Korea Inst Water & Environm, Water Anal & Res Ctr, Taejon 306711, South Korea
[4] Pusan Natl Univ, Sch Chem & Biomol Engn, Busan 609735, South Korea
来源：
WATER AIR AND SOIL POLLUTION | 2015年 / 226卷 / 10期
基金：
新加坡国家研究基金会;
关键词：
Iopromide; Natural organic matter; Granular activated carbon; Adsorption; Ozonation; RAY CONTRAST-MEDIA; SIZE-EXCLUSION CHROMATOGRAPHY; ORGANIC-MATTER; COMPETITIVE ADSORPTION; ENDOCRINE DISRUPTORS; ADVANCED OXIDATION; BY-PRODUCTS; OZONATION; PHARMACEUTICALS; DRINKING;
D O I：
10.1007/s11270-015-2594-0
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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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页数：9
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