泡操纵病毒气溶在通风中的释放
Menghao Chen1, Yingying Xing1, Jiayang Kong1
1State Key Joint Laboratory of Environmental Simulation and Pollution Control, State Environment Protection Key Laboratory of Microorganism Application and Risk Control, School of Environment, Tsinghua University, Beijing 100084, China.
Journal of hazardous materials
|September 23, 2023
概括
较小的气泡会产生更多的病毒气溶,这与预期相反. 较深的泡会增加病毒传输,特别是非包裹病毒,在废水处理中构成风险.
科学领域:
- 环境微生物学环境微生物学
- 气溶科学是一门气溶科学.
- 水处理技术水处理技术.
背景情况:
- 泡破裂促进了质量转移,但病毒的气溶化机制尚不清楚.
- 泡特性与病原体转移之间的关系需要进一步研究.
- 了解病毒的气溶化对于公共卫生和环境安全至关重要.
研究的目的:
- 为了研究由不同尺寸的气泡介导的病毒从水向空气的转移.
- 根据气泡特征阐明驱动病毒气溶的机制.
- 评估在废水处理等工业过程中对病毒生物气溶产生的影响.
主要方法:
- 实验不同尺寸的气泡 (0.561.65毫米Sauter平均直径) 在不断的通风下.
- 对多种病毒物种的病毒气溶的量化 (Phi6,MS2,PhiX174,T7).
- 对病毒气溶度的分析与泡深度和病毒类型 (包裹与非包裹) 相比.
主要成果:
- 较小的气泡在所有测试的病毒物种中产生了显著更多的病毒气溶.
- 更深的泡通过泡清理线性地增加了非包裹病毒 (MS2,PhiX174,T7) 的气溶病毒度.
- 被包裹的病毒Phi6在来自较小气泡的气溶中表现出更好的生存能力,尽管气溶增强更大.
结论:
- 减少废水通风中的气泡大小可能会增加氧气传输,但也会增加病毒性气溶风险.
- 泡清理是非包裹病毒传输的关键机制,但其他机制也会影响包裹病毒.
- 这些发现凸显了需要重新考虑水处理中的泡大小优化,以减轻病原体的气溶化.
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