关于废水处理厂废水中的微生物风险因素的全球视角
Kejing Chen1, Jinsong Liang2, Yuhan Wang2
1Shenzhen Guohuan Environmental Protection Technology Development Co., LTD., Shenzhen 518055, China.
Journal of environmental sciences (China)
|December 22, 2023
概括
全球废水排放中存在有关抗生素耐药性基因 (ARG) 和毒性因子基因 (VFG) 的问题. Acinetobacter baumannii是主要的病原体,挑战了使用大肠杆菌作为唯一指标的使用.
科学领域:
- 环境微生物学环境微生物学
- 公共卫生 公共卫生
- 污水处理 污水处理 污水处理
背景情况:
- 在废水处理厂 (WWTP) 污水中有效管理微生物风险至关重要.
- 全球监测WWTP废水中的微生物风险因素,可以提供重要的见解.
研究的目的:
- 调查全球WWTP污水中的抗生素耐药性基因 (ARG) 和毒性因子基因 (VFG) 的丰度和类型.
- 在WWTP废水中识别ARG/VFG载体和主导病原体.
- 评估大肠杆菌作为WWTP废水中病原体的生物指标的适用性.
主要方法:
- 从序列读取档案 (NCBI) 收集和分析了113个WWTP废水的元基因组.
- 描述了微生物风险因素,包括ARG,VFG,它们的载体和主导性病原体.
- 进行了大肠杆菌和其他主要病原体之间的相关性分析.
主要成果:
- 多药耐药性是主要的ARG类型;攻击性毒性因子是最丰富的VFG.
- 在等离子体和菌体载体中,氨基糖化物耐药性是主要的ARG类型.
- Acinetobacter baumannii是最主要的病原体,并且在大肠杆菌和其他关键病原体之间观察到微弱的负相关性.
- 盖塔病毒是全球WWTP废水中最常见的病毒.
结论:
- 全球WWTP废水中含有大量的ARG和VFG,造成潜在的公共卫生风险.
- 由于Acinetobacter baumannii的占主导地位以及与大肠杆菌的有限相关性,因此质疑其作为通用指标的作用.
- 对于有效的风险管理和控制,全面监测WWTP废水中的微生物风险因素至关重要.
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