Synergistic effect of aqueous removal of fluoroquinolones by a combined use of peroxymonosulfate and ferrate(VI)

被引：115
|
作者：
Feng, Mingbao [1 ]
Cizmas, Leslie [2 ]
Wang, Zunyao [1 ]
Sharma, Virender K. [2 ]
机构：
[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resources Reuse, Nanjing 210023, Jiangsu, Peoples R China
[2] Texas A&M Univ, Sch Publ Hlth, Dept Environm & Occupat Hlth, Program Environm & Sustainabil, College Stn, TX 77843 USA
来源：
CHEMOSPHERE | 2017年 / 177卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Ferrate; Peroxymonosulfate; Fluoroquinolone antibiotics; Synergistic effect; Water treatment; ORGANIC CONTAMINANTS; WATER; DEGRADATION; PERSULFATE; OXIDATION; ANTIBIOTICS; PRODUCTS; OXIDANTS;
D O I：
10.1016/j.chemosphere.2017.03.008
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper examines for the first time the combined use of ferrate(VI) ((FeO42-)-O-V, Fe(VI)) with peroxymonosulfate (PMS) to oxidize four fluoroquinolones (FQs) (flumequine (FLU), enrofioxacin (ENR), marbofloxacin (MAR), and ofloxacin (OFL)) at pH 7.0 and 25.0 degrees C. The results demonstrate that a combination of PMS and Fe(VI) synergistically enhance removal of FQs compared to the removal seen with either PMS or Fe(VI) alone. The oxidized products (OPs) of the reaction of FLU with the PMS-Fe(VI) system, identified by liquid chromatography high-resolution mass spectrometry (LC-HRMS) techniques, showed transformation products resulted from hydroxylation, ring cleavage, and de-fluorination processes. Thus, the combination of PMS and Fe(VI) can be developed as an innovative oxidative technology to remove contaminants from water. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：144 / 148
页数：5
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