Air Force Institute of Technology, Environmental Engineering and Science Program, Department of Systems Engineering and Management, 2950 Hobson Way, Wright-Patterson AFB, OH 45433, USA.
Air Force Institute of Technology, Environmental Engineering and Science Program, Department of Systems Engineering and Management, 2950 Hobson Way, Wright-Patterson AFB, OH 45433, USA.
Sci Total Environ. 2021 Jan 20;753:141852. doi: 10.1016/j.scitotenv.2020.141852. Epub 2020 Aug 20.
This article presents a critical review of the peer-reviewed literature related to bioaerosol generation from activated sludge basins. Characterization techniques include a variety of culture- and nonculture-based techniques, each with unique features. Bioaerosols contain a variety of clinical pathogens including Staphylococcus saprophyticus, Clostridium perfringens, and Salmonella enteritidis; exposure to these microorganisms increases human health risks. Release mechanisms involve splashing and bubble burst dynamics. Larger bubbles emit more aerosol particles than smaller ones. Attenuation strategies include covering sources with lids, adjusting the method and intensity of aeration, and using free-floating carrier media. Future studies should combine culture and non-culture based methods, and expand chemical databases and spectral libraries in order to realize the full power of real-time online monitoring.
本文对活性污泥池生物气溶胶产生的同行评议文献进行了批判性回顾。 表征技术包括各种基于培养和非培养的技术，每种技术都有其独特的特点。 生物气溶胶中含有多种临床病原体，包括腐生葡萄球菌、产气荚膜梭菌和肠炎沙门氏菌； 接触这些微生物会增加人类健康风险。 释放机制涉及飞溅和气泡破裂动力学。 较大的气泡比小气泡释放更多的气溶胶颗粒。 衰减策略包括用盖子覆盖源、调整曝气的方法和强度以及使用自由浮动的载体介质。 未来的研究应结合基于培养和非培养的方法，并扩展化学数据库和光谱库，以实现实时在线监测的全部功能。
