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.

引用

页数：9

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