管道材料和消毒剂对饮用水和生物膜中活跃的细菌群体的影响
Sallamaari Siponen1,2, Jenni Ikonen2, Vicente Gomez-Alvarez3
1University of Eastern Finland, Department of Environmental and Biological Sciences, P.O. Box 1627, FI-70211 Kuopio, Finland.
Journal of applied microbiology
|January 6, 2025
概括
消毒剂显著影响了水中的细菌群落,而管道材料的影响较小. 然而,管道材料和消毒剂的结合强烈影响了建筑物管道系统中的生物膜社区.
科学领域:
- 环境微生物学环境微生物学
- 水质科学 水质科学
背景情况:
- 内部的管道系统是复杂的细菌群落的所在地.
- 消毒副产品和管道材料可以影响微生物的生长和生存.
研究的目的:
- 研究管道材料 (铜,PEX) 和消毒剂 (,胺) 对细菌群体及其在水和生物膜中的活性RNA分子的联合作用.
- 分析对机会性病原体的影响,如军团菌和菌根菌.
主要方法:
- 利用一个试点规模的设施管道系统,使用铜和交联聚乙烯 (PEX) 管道.
- 应用的和胺消毒策略.
- 分析了使用16S rRNA基因安普利康序列的总和活跃细菌群落.
主要成果:
- 消毒剂类型对水中的细菌群体的影响比管道材料更大.
- 观察到管道材料和消毒剂对生物膜组成和活性的联合作用.
- 军团菌种 (Legionella spp.) 是一种病毒. 与胺处理水相比,在处理水中更丰富,更活跃.
- 浮游生物类 (Planctomycetia) 显示出基于消毒和管道材料的活性分数的差异丰度.
结论:
- 消毒剂对水中的细菌群体组成的影响比管道材料更大.
- 管道材料和消毒剂之间的相互作用对于理解生物膜社区的动态和活动至关重要.
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