Microbial structure and chemical components of aerosols caused by rotating brushes in a wastewater treatment plant
文献类型：期刊论文
| 作者 | Han, Yunping ; Li, Lin ; Liu, Junxin ; Zhang, Mengzhu |
| 刊名 | Environmental Sciences & Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 19期号:9页码:4097-4108 |
| ISSN号 | 0944-1344 |
| 关键词 | Wastewater treatment plant Orbal oxidation ditch Airborne bacteria Genetic structure Clone library Chemical components |
| 中文摘要 | Bacterial community structure and the chemical components in aerosols caused by rotating brushes in an Orbal oxidation ditch were assessed in a Beijing municipal wastewater treatment plant. Air samples were collected at different distances from the aerosol-generating rotating brushes. Molecular culture-independent methods were used to characterize the community structure of the airborne bacteria in each sample regardless of cell culturability. A clone library of 16S rDNA directly amplified from air DNA of each sample was constructed and sequenced to analyze the community composition and diversity. Insoluble particles and water-soluble ions emitted with microorganisms in aerosols were analysis by a scanning electron microscope together with energy dispersive X-ray spectroscopy and ion chromatogram analyzer. In total, most of the identified bacteria were Proteobacteria. The majority of sequences near the rotating brushes (the main source of the bioaerosols) were Proteobacteria (62.97 %) with beta-(18.52 %) and gamma-(44.45 %) subgroups and Bacteroidetes (29.63 %). Complex patterns were observed for each sampling location, suggesting a highly diverse community structure, comparable to that found in water in the Orbal oxidation ditch. Accompany with microorganisms, 46.36 mu g/m(3) of SO (4) (2-) , 29.35 mu g/m(3) of Cl-, 21.51 mu g/m(3) of NO (3) (-) , 19.76 mu g/m(3) of NH (4) (+) , 11.42 mu g/m(3) of PO (4) (3-) , 6.18 mu g/m(3) of NO (2) (-) , and elements of Mg, Cl, K, Na, Fe, S, and P were detected from the air near the aerosols source. Differences in the structure of the bacterial communities and chemical components in the aerosols observed between sampling sites indicated important site-related variability. The composition of microorganisms in water was one of the most important sources of bacterial communities in bioaerosols. Chemical components in bioaerosols may provide a media for airborne microorganism attachment, as well as a suitable microenvironment for their growth and survival in the air. This study will be benefit for the formulation of pollution standards, especially for aerosols, that take into account plant workers' health. |
| WOS记录号 | WOS:000309476600045 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8182]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Han, Yunping,Li, Lin,Liu, Junxin,et al. Microbial structure and chemical components of aerosols caused by rotating brushes in a wastewater treatment plant[J]. Environmental Sciences & Ecology,2012,19(9):4097-4108. |
| APA | Han, Yunping,Li, Lin,Liu, Junxin,&Zhang, Mengzhu.(2012).Microbial structure and chemical components of aerosols caused by rotating brushes in a wastewater treatment plant.Environmental Sciences & Ecology,19(9),4097-4108. |
| MLA | Han, Yunping,et al."Microbial structure and chemical components of aerosols caused by rotating brushes in a wastewater treatment plant".Environmental Sciences & Ecology 19.9(2012):4097-4108. |
入库方式： OAI收割
来源：生态环境研究中心
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