传统和静电喷雾器的评估,用于消毒PPE覆盖的人偶
John Archer1, Abderrahmane Touati1, R Leroy Mickelsen1
1John Archer, MS, is a Research Industrial Hygienist; Lukas Oudejans, PhD, and Sang Don Lee, PhD, are Research Physical Scientists; and M. Worth Calfee, PhD, Research Microbiologist; all are in the Homeland Security and Materials Management Division, Center for Environmental Solutions and Emergency Response, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC. Abderrahmane Touati, PhD, is a Homeland Security Research Manager; and Ahmed Abdel-Hady is a Research Scientist; both at Jacobs Technology Inc, Tullahoma, TN. R. Leroy Mickelsen, is a Retired Engineer, CBRN Consequence Management Advisory Division, Office of Emergency Management, Office of Land and Emergency Management, US Environmental Protection Agency, Research Triangle Park, NC.
静电喷雾器在生物恐怖主义事件后人员消毒期间显著减少液体废物. 虽然最初效率低于背包喷雾器,但增加喷雾时间提高了生物制剂的静电除污效率.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 化学工程是化学工程的重要组成部分.
背景情况:
- 在生物恐怖主义事件发生后,人员的消毒非常重要,以防止污染物传播.
- 传统喷雾器会产生大量的液体废物,并可能导致污染物迁移.
- 个人防护设备 (PPE) 需要有效的净化方法.
研究的目的:
- 为了比较静电喷雾器的有效性和废物产生,与用于人员消毒的传统背包喷雾器相比.
- 为了评估喷雾时间对静电喷雾器性能的影响.
- 为了评估消毒过程中的子再溶解.
主要方法:
- 使用带有个人防护设备的木偶进行试点规模测试.
- 静电喷雾器和背包喷雾器之间的液体流量比较.
- 通过减少生物子 (液体和气溶注射) 的日志来衡量除污染效率.
- 在去污染过程中评估子再雾化.
主要成果:
- 与传统喷雾器相比,静电喷雾器产生的液体排放量大约减少了75倍.
- 传统喷雾器实现了>6 log10的减少;静电喷雾器最初显示<6 log10的减少.
- 增加喷雾时间提高了静电喷雾器的效率,降低了>6 log10.
- 与传统的背包喷雾器观察到更高的子再喷雾.
结论:
- 静电喷雾器为人员消毒线提供了一个可行的,减少废物的替代方案.
- 优化喷雾时间对于实现静电喷雾器高净化效率至关重要.
- 静电喷雾器可以最大限度地降低废物处理成本和生物恐怖主义后的污染物迁移事件.
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