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重新考虑烧伤:烧伤对控制机会性病原体的短暂影响,在一个全面的化工程水系统中
Chiqian Zhang1, Nathan Sienkiewicz2, Ian Struewing2
1Civil Engineering Program, College of Engineering & Computer Science, Arkansas State University, AR 72467, United States.
用于控制水系统中的化,燃烧只能暂时减少机会性病原体 (OP) 并增加消毒副产品. 这种方法对于长期的OP控制在建筑物管道中是无效的.
科学领域:
- 环境科学 环境科学
- 水质管理水质管理
- 微生物学 微生物学
背景情况:
- 化是化工程水系统 (EWS) 中的一个重大水质问题.
- 燃烧,即暂时切换到自由,用于补救化.
- 烧伤对EWS的机会性病原体 (OPs) 的影响在很大程度上是未知的.
研究的目的:
- 为了评估燃烧对主导机会性病原体 (OPs) 的影响,在全尺寸化EWS.
- 在燃烧期间和之后,比较水管中的OP度与场所的管道.
- 为了评估烧伤在控制OP再生增长方面的有效性.
主要方法:
- 在一个代表性的美国化EWS中,实施了为期1.5个月的烧.
- 在水管和住宅场所测量了四种主要的OP度 (Legionella,Mycobacterium,Pseudomonas,Vermamoeba vermiformis).
- 还监测了消毒剂残留物和消毒副产品 (DBPs).
主要成果:
- 燃烧暂时降低了水管中的OP度,但对住宅设施的管道没有显著影响.
- 在整个研究过程中,OP度在场地管道中始终高于在水管中.
- 燃烧导致水道中的DBP水平大幅增加.
结论:
- 燃烧在最好的情况下是暂时有效的,可以减少水管中的OP,并且在场所管道中基本上无效.
- 燃烧用于化控制的实践可能需要优化或更换,因为有效性有限和DBPs增加.
- 建筑物管道中的水停滞和消毒剂腐烂有助于OP再生和更高的病原体负载.
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