在源水中预化使ARB具有抵抗饮用水处理中消毒的抵抗力
Xuejing Huang1, Tanghao Liu1, Jianing Xiu1
1State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China.
Journal of hazardous materials
|May 21, 2025
概括
消毒可以增加抗生素耐药性基因 (ARG) 在饮用水当原水含量高. 预先化可能会增强细菌的耐药性,从而使随后的消毒在去除ARG方面效率降低.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 消毒是饮用水安全的标准.
- 抗生素耐药性细菌 (ARB) 和基因 (ARG) 在经过处理的水中发现,但的影响仍在争论中.
- 预是用来控制原水源中的藻类.
研究的目的:
- 调查消毒对饮用水中ARG丰度的影响.
- 为了确定不同度如何影响ARG水平.
- 了解前化在ARG增殖中的作用.
主要方法:
- 在不同度下对饮用水中ARG丰度的分析.
- 在前化和随后的消毒后评估ARB和ARG水平.
- 度与原水和经过处理的水中的ARG水平的相关性.
主要成果:
- 原水中的高度 (>0.2 mg/L) 在消毒后增加了ARG的丰度.
- 低度 (<0.09 mg/L) 降低了ARG的丰度.
- 亚致死性预导致适应的ARB,在消毒过程中增加ARG.
结论:
- 消毒对ARG的影响取决于最初的度.
- 预可以无意中通过诱导细菌耐药性来促进ARG.
- 原水中高水平的抗药性细菌是处理过水中ARG增加的一个关键因素.
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