Characterization, factors, and UV reduction of airborne bacteria in a rural wastewater treatment station
文献类型：期刊论文
| 作者 | Li, Pengyu; Li, Lin; Wang, Yanjie; Zheng, Tianlong; Liu, Junxin |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-01-10 |
| 卷号 | 751页码:- |
| 关键词 | Rural wastewater treatment station Bioaerosol reduction Wind speed Health risk assessment Ultraviolet radiation for bioaerosol reduction |
| ISSN号 | 0048-9697 |
| 英文摘要 | Bioaerosols containing pathogens released from wastewater will pose potential health risks to workers on site. The emission of airborne bacteria from a rural wastewater treatment station and their inactivation by ultraviolet were investigated in this study. High-throughput sequencing technique was utilized to assay airborne bacterial population while the health risks associated with airborne bacteria exposure were estimated based on average daily dose rates. The recorded emission level of airborne bacteria in the air surrounding the multi-point inlet contact oxidation bioreactor (MTB) was 4795 +/- 1475 CFU/m(3), containing 2233 +/- 471 CFU/m(3) of intestinal bacteria, and most of them (70.3%) was coarse particles with size over 2.1 mu m. Wind disturbance had significant effects on the diffusion and particle size distribution of the bioaerosols emitted from MTB. The identified opportunistic pathogens in bioaerosols were Enterobacter sp., Acinetobacter sp., Pantoea sp., Achromobacter sp., and Curtobacteriuin sp. They were originated in the water and active sludge in MTB. Inhalation was one of the main ways through which onsite workers were exposed to airborne bacteria. Exposure to ultraviolet radiation caused an apparent decrease in the level of bioaerosols in the air, thereby indicating that it can be utilized as an effective method for the reducing of bioaerosols. This study aims to provide preliminary data for the bioaerosols control in rural wastewater treatment process. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45917]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China 3.Zhengzhou Univ, Sch Publ Hlth, Zhengzhou 450001, Peoples R China 4.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA14YQ, England 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Pengyu,Li, Lin,Wang, Yanjie,et al. Characterization, factors, and UV reduction of airborne bacteria in a rural wastewater treatment station[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,751:-. |
| APA | Li, Pengyu,Li, Lin,Wang, Yanjie,Zheng, Tianlong,&Liu, Junxin.(2021).Characterization, factors, and UV reduction of airborne bacteria in a rural wastewater treatment station.SCIENCE OF THE TOTAL ENVIRONMENT,751,-. |
| MLA | Li, Pengyu,et al."Characterization, factors, and UV reduction of airborne bacteria in a rural wastewater treatment station".SCIENCE OF THE TOTAL ENVIRONMENT 751(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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