隐藏的风险:家用污水模拟泄漏到二级供水系统构成严重的微生物风险
Dong Hu1, Xiang Li1, Jie Zeng2
1School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China.
Water research
|September 4, 2023
概括
国内污水泄漏对二次供水系统 (SWSS) 构成严重风险. 即使是低水平的污染也会增加微生物风险和病原性标记物,突显了早期检测和预防策略的必要性.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 水质管理水质管理
背景情况:
- 二级供水系统 (SWSS) 容易受到家庭污水污染的影响.
- 国内污水泄漏对SWSS中的水安全构成重大威胁.
研究的目的:
- 调查家用污水污染对SWSSs物理化学水质和微生物特征的影响.
- 评估特定微生物标记物的有效性,以便对污染进行早期预警.
主要方法:
- 一个为期70天的试点实验模拟了SWSSs的家用污水污染.
- 定量聚合酶连锁反应 (qPCR) 和高通量测序用于微生物分析.
- 监测物理化学参数,如度和氨.
主要成果:
- 国内污水迅速耗尽了消毒剂,并且在高污染水平下增加了度和氨.
- 病原性基因标记物,包括大肠杆菌 (Escherichia coli) 和菌 (Enterococcus faecalis),即使在低污染水平下也被检测到.
- 微生物活动虽然最初减少,但在停滞期间恢复.
结论:
- 在SWSS中的污水泄漏带来了相当大的微生物风险,即使在不容易感知的水平上也是如此.
- 大肠杆菌 (Escherichia coli) 和菌 (Enterococcus faecalis) 作为SWSS中早期污染预警的可靠指标.
- 调查结果为开发有效的SWSS污染预防和预警系统提供了关键的见解.
更多相关视频
08:09Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity
Published on: August 19, 2018
9.2K
09:30Author Spotlight: Microbial Control and Monitoring Strategies for Cleanroom Environments and Cellular Therapies
Published on: March 17, 2023
3.4K
相关概念视频
01:18Surface Membrane Barriers
1.2K
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
1.2K
01:29Methods for Controlling Microbial Growth
69
Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
69
01:25Design Example: Designing a Residential Plumbing System
734
The design of residential plumbing systems requires carefully evaluating water demand, flow rates, and pressure dynamics to ensure both efficiency and reliability. The nature of water flow within pipes is defined by its Reynolds number, which classifies flow as either laminar (smooth) or turbulent.
734