Insights into capture-inactivation/oxidation of antibiotic resistance bacteria and cell-free antibiotic resistance genes from waters using flexibly-functionalized microbubbles
文献类型：期刊论文
| 作者 | Zhang, Ming; Yu, Beilei; Xu, Tao; Zhang, Daoyong; Qiang, Zhimin ; Pan, Xiangliang
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-04-15 |
| 卷号 | 428期号:0页码:128249 |
| 关键词 | COLLOIDAL GAS APHRONS DISSOLVED ORGANIC-MATTER ESCHERICHIA-COLI FLOW-CYTOMETRY REMOVAL FLOTATION OZONE DISINFECTION COMBINATION OZONATION |
| ISSN号 | 0304-3894 |
| 英文摘要 | The spread of antibiotic resistance in the aquatic environment severely threatens the public health and ecological security. This study investigated simultaneously capturing and inactivating/oxidizing the antibiotic resistant bacteria (ARB) and cell-free antibiotic resistance genes (ARGs) in waters by flexibly-functionalized microbubbles. The microbubbles were obtained by surface-modifying the bubbles with coagulant (named as coagulative colloidal gas aphrons, CCGAs) and further encapsulating ozone in the gas core (named as coagulative colloidal ozone aphrons, CCOAs). CCGAs removed 92.4-97.5% of the sulfamethoxazole-resistant bacteria in the presence of dissolved organic matter (DOM), and the log reduction of cell-free ARGs (particularly, those encoded in plasmid) reached 1.86-3.30. The ozone release from CCOAs led to efficient in-situ oxidation: 91.2% of ARB were membrane-damaged and inactivated. In the municipal wastewater matrix, the removal of ARB increased whilst that of cell-free ARGs decreased by CCGAs with the DOM content increasing. The ozone encapsulation into CCGAs reinforced the bubble performance. The predominant capture mechanism should be electrostatic attraction between bubbles and ARB (or cell-free ARGs), and DOM enhanced the sweeping and bridging effect. The functionalized microbubble technology can be a promising and effective barrier for ARB and cell-free ARGs with shortened retention time, lessened chemical doses and simplified treatment unit. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47865]  |
| 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 |
| 通讯作者 | Zhang, Daoyong |
| 作者单位 | 1.Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, Peoples R China 2.Chinese Acad Sci, Univ Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, 18 Shuang Qing Rd, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ming,Yu, Beilei,Xu, Tao,et al. Insights into capture-inactivation/oxidation of antibiotic resistance bacteria and cell-free antibiotic resistance genes from waters using flexibly-functionalized microbubbles[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,428(0):128249. |
| APA | Zhang, Ming,Yu, Beilei,Xu, Tao,Zhang, Daoyong,Qiang, Zhimin,&Pan, Xiangliang.(2022).Insights into capture-inactivation/oxidation of antibiotic resistance bacteria and cell-free antibiotic resistance genes from waters using flexibly-functionalized microbubbles.JOURNAL OF HAZARDOUS MATERIALS,428(0),128249. |
| MLA | Zhang, Ming,et al."Insights into capture-inactivation/oxidation of antibiotic resistance bacteria and cell-free antibiotic resistance genes from waters using flexibly-functionalized microbubbles".JOURNAL OF HAZARDOUS MATERIALS 428.0(2022):128249. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
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。