| 城市污水处理厂微生物气溶胶逸散特性研究进展 |
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| 引用本文： | 康心悦，刘建伟.城市污水处理厂微生物气溶胶逸散特性研究进展[J].环境工程技术学报，2022，12（4）：1185-1193 doi: 10.12153/j.issn.1674-991X.20210309 |
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| 作者姓名： | 康心悦 刘建伟 |
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| 作者单位： | 北京建筑大学环境与能源工程学院 |
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| 基金项目： | 北京市科技计划课题（Z181100005518011）； |
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| 摘 要： | 为全面理解城市污水处理厂微生物气溶胶的逸散特性，系统阐述了国内外城市污水处理厂微生物气溶胶的研究进展。城市污水处理厂中涉及机械推流和曝气搅拌的处理设施包括格栅间、沉砂池、曝气池和污泥脱水车间等是微生物气溶胶的主要来源，微生物气溶胶的粒径主要分布在小于4.7 µm的可吸入范围内。不同污水处理设施处微生物气溶胶的种群结构存在差异，Acinetobacter、Enterobacter、Arcobacter、Pseudomonas和Escherichia coli是污水处理设施微生物气溶胶中常见的潜在致病菌菌属，能够通过黏膜、损伤的皮肤、消化道和呼吸道侵入机体，威胁人体健康。城市污水处理厂微生物气溶胶的逸散特性受污水处理工艺类型、曝气类型和速率、进水水质、温度和相对湿度、风速和风向、太阳辐射以及季节等多种因素的影响。
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| 关 键 词： | 微生物气溶胶 来源 逸散特性 影响因素 |
| 收稿时间： | 2021-07-08 |
Research progress of emission characteristics of microbial aerosols in municipal wastewater treatment plants |
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| KANG X Y,LIU J W.Research progress of emission characteristics of microbial aerosols in municipal wastewater treatment plants[J].Journal of Environmental Engineering Technology，2022，12（4）：1185-1193 doi: 10.12153/j.issn.1674-991X.20210309 |
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| Authors: | KANG Xinyue LIU Jianwei |
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| Affiliation: | College of Energy and Environmental Engineering, Beijing University of Civil Engineering and Architecture |
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| Abstract: | In order to fully understand the emission characteristics of microbial aerosols in municipal wastewater treatment plants (MWWTPs), the research progress of microbial aerosols in MWWTPs at home and abroad was systematically expounded. The treatment facilities involving mechanical push flow and aeration mixing in MWWTPs, which included grid room, grit tank, aeration tank, and sludge dewatering room, were the main sources of microbial aerosols. Microbial aerosols were mainly distributed in the inhalable particle size range of less than 4.7 µm. There were differences in the population community of microbial aerosols at various wastewater treatment facilities. Acinetobacter, Enterobacter, Arcobacter, Pseudomonas, and Escherichia coli were common potential pathogenic bacteria in microbial aerosols in the wastewater treatment facilities, which could pose a direct threat to human health through the mucous membrane, damaged skin, and digestive and respiratory tract. The emission characteristics of microbial aerosols in MWWTPs were affected by many factors such as type of sewage treatment process, type and rate of aeration, quality of influent water, temperature and relative humidity, wind speed and direction, solar radiation, and season. |
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| Keywords: | microbial aerosol sources emission characteristics influencing factors |
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