| Mechanism of oxytetracycline removal by aerobic granular sludge in SBR | |
Wang, Xiaochun1; Shen, Jimin1; Kang, Jing1; Zhao, Xia2 ; Chen, Zhonglin1
| |
| 2019-09-15 | |
| 发表期刊 | WATER RESEARCH
 |
| ISSN | 0043-1354 |
| 卷号 | 161页码:308-318 |
| 摘要 | In this study, oxytetracycline (OTC) as a target pollutant in swine wastewater was removed by aerobic granular sludge (AGS). The removal rate of 300 mu g/L OTC in aerobic granular sludge sequencing batch reactor (AGSBR) increased to 88.00% in 33 days and maintained stable. The chemical oxygen demand (COD), ammonium nitrogen (NH4+-N) and total phosphorus (TP) in wastewater were also efficiently removed. The removal of OTC mainly depended on the adsorption and biodegradation of AGS, and the biodegradation was increased obviously after AGS adaptation to OTC. The degradation products of OTC were analyzed by mass spectrometry. The analysis of metagenome sequencing revealed that the enzymes, such as glycosyl transferases (GTs), polysaccharide lyases (PLs) and auxiliary activities (AAs), may play an important role in the removal of OTC. The Lefse analysis showed that the Flavobacteriia, Flavobacteriales, Cryomorphaceae and Fluviicola were four kinds of microbes with significant difference in OTC feed reactor, which are considered to be drug-resistant bacteria in AGSBR. Furthermore, the dynamics of microbial community changed significantly at three levels, including the enrichment of drug-resistant microorganisms and the microorganisms that gradually reduced or even disappeared under the pressure of OTC. (C) 2019 Elsevier Ltd. All rights reserved. |
| 关键词 | Aerobic granular sludge Biodegradation mechanism Enzymes Microbial community Oxytetracycline |
| DOI | 10.1016/j.watres.2019.06.014 |
| 收录类别 | SCI ; SCIE |
| 语种 | 英语 |
| 资助项目 | Provincial Natural Science Foundation of Gansu[1506RJZA102] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| WOS类目 | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| WOS记录号 | WOS:000475999400032 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| EI入藏号 | 20192507058350 |
| EI主题词 | Biodegradation |
| EI分类号 | 801 Chemistry - 801.2 Biochemistry - 802.1 Chemical Plants and Equipment - 802.2 Chemical Reactions - 951 Materials Science |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/31572 |
| 专题 | 石油化工学院 |
| 通讯作者 | Kang, Jing; Chen, Zhonglin |
| 作者单位 | 1.Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China; 2.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiaochun,Shen, Jimin,Kang, Jing,et al. Mechanism of oxytetracycline removal by aerobic granular sludge in SBR[J]. WATER RESEARCH,2019,161:308-318. |
| APA | Wang, Xiaochun,Shen, Jimin,Kang, Jing,Zhao, Xia,&Chen, Zhonglin.(2019).Mechanism of oxytetracycline removal by aerobic granular sludge in SBR.WATER RESEARCH,161,308-318. |
| MLA | Wang, Xiaochun,et al."Mechanism of oxytetracycline removal by aerobic granular sludge in SBR".WATER RESEARCH 161(2019):308-318. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Wang-2019-Mechanism （5233KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论