Enhanced oxidation of erythromycin by persulfate activated iron powder-H2O2 system: Role of the surface Fe species and synergistic effect of hydroxyl and sulfate radicals
文献类型：期刊论文
| 作者 | Li, Meng; Yuan, Jin; Wang, DongSheng; Yang, Xiaofang |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 317期号:0页码:103-111 |
| 关键词 | Hydroxyl Radical Sulfate Radical Interaction Of Oxidants Erythromycin |
| 英文摘要 | Erythromycin (ERY) is one of macrolide antibiotics which are hardly removed by conventional water treatment process. In this study, the degradation of ERY using a H2O2 and persulfate combined process was assessed. Neutral and acidic conditions are superior to alkaline condition in the results of ERY degradation. The Cl- exhibited dual effects (favorable or adverse) distinctively on ERY degradation, while HCO3-, CO32- and humic acid significantly inhibited ERY degradation. The results showed that with the persulfate/H2O2 molar ratio improved from 0:10 to 1:9 (total oxidants dosage was 0.1 mM), the ERY degradation efficiency increased from 6.5% to 90.0%. Effective oxidation of ERY only occurred after adding persulfate with the formation of surface-associated Fe(II) on the ZVI surface facilitating rapid and extensive decomposition of H2O2. Undetectable concentration of dissolve Fe2+ suggested that the generation of HO. was mainly from the surface-located Fe(II)-initiated heterogeneous Fenton process. The intermediate products during oxidation were identified, and the degradation pathways of ERY were tentatively proposed. (C) 2017 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39693]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Meng,Yuan, Jin,Wang, DongSheng,et al. Enhanced oxidation of erythromycin by persulfate activated iron powder-H2O2 system: Role of the surface Fe species and synergistic effect of hydroxyl and sulfate radicals[J]. CHEMICAL ENGINEERING JOURNAL,2017,317(0):103-111. |
| APA | Li, Meng,Yuan, Jin,Wang, DongSheng,&Yang, Xiaofang.(2017).Enhanced oxidation of erythromycin by persulfate activated iron powder-H2O2 system: Role of the surface Fe species and synergistic effect of hydroxyl and sulfate radicals.CHEMICAL ENGINEERING JOURNAL,317(0),103-111. |
| MLA | Li, Meng,et al."Enhanced oxidation of erythromycin by persulfate activated iron powder-H2O2 system: Role of the surface Fe species and synergistic effect of hydroxyl and sulfate radicals".CHEMICAL ENGINEERING JOURNAL 317.0(2017):103-111. |
入库方式： OAI收割
来源：生态环境研究中心
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