Removal of iodinated X-ray contrast media during drinking water treatment

被引：56

作者：

Seitz, Wolfram

Jiang, Jia-Qian ^{[1
]}

Weber, Walter H.

Lloyd, Barry J.

Maier, Matthias

Maier, Dietrich

机构：

[1] Univ Surrey, Sch Engn C5, Guildford GU2 7XH, Surrey, England

[2] Zweckverband Landeswasserversorgung Betriebs & Fo, D-89129 Langenau, Germany

[3] Univ Karlsruhe, Fac Chem Engn & Proc Engn, D-76128 Karlsruhe, Germany

来源：

ENVIRONMENTAL CHEMISTRY | 2006年 / 3卷 / 01期

关键词：

HPLC-MS; persistent pollutants; water treatment;

D O I：

10.1071/EN05036

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present study investigates the removal of five iodinated X-ray contrast media (ICM) during drinking water production from surface water at a full-scale water works, which comprises coagulation/flocculation, intermediate ozonation, in-line filtration and adsorption with activated carbon. The elimination rates over all treatment units for the non-ionic ICM (iomeprol, iopromide, iohexol and iopamidol) were determined to be approximately 70%. In particular, intermediate ozonation can remove 30% on average of the non-ionic ICM, whereas it cannot remove the ionic diatrizoic acid, and the granulated activated carbon filters can achieve a further 50% removal of non-ionic ICM. However, over 100 ng L-1 of ionic diatrizoic acid and 40-100 ng L-1 of non-ionic ICM were found in the produced drinking water.

引用

页码：35 / 39

页数：5

共 14 条

[1]

Acero JL, 2001, J AM WATER WORKS ASS, V93, P90

[2]

DAUGHTON CG, 1999, ENVIRON HEALTH PER S, V107, P929

[3] Oxidation of pharmaceuticals during ozonation of municipal wastewater effluents:: A pilot study [J].