通过废水处理过程跟踪SARS-CoV-2RNA
Hala Abu Ali1, Karin Yaniv2, Edo Bar-Zeev1
1Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Beer Sheva 8499000, Israel.
概括
污水处理减少了SARS-CoV-2RNA,但在初级和二级阶段之后仍然存在大量. 第三级处理和化对于进一步减少病毒传播至关重要.
科学领域:
- 环境科学环境科学
- 病毒学 病毒学
- 公共卫生 公共卫生
背景情况:
- 市政污水中含有来自COVID-19患者的SARS-CoV-2RNA.
- 有效的废水处理对于防止环境病毒传播至关重要.
- 不同治疗阶段对病毒RNA减少的影响尚不清楚.
研究的目的:
- 量化SARS-CoV-2RNA度在原始污水和活性污泥处理阶段.
- 评估废水处理工艺在减少病毒RNA方面的有效性.
- 评估三级处理和化在病毒失活中的作用.
主要方法:
- 在2020年COVID-19爆发期间,从两个以色列废水处理厂收集的样本.
- 用于样品度 (2-43倍) 的超过,以降低检测极限.
- 通过实时聚合酶连锁反应量化SARS-CoV-2RNA.
主要成果:
- 初级和二级处理步骤平均实现了大约1-logRNA去除.
- 在二次废水中检测到超过100个SARS-CoV-2 RNA/mL的副本.
- 在化后很少检测到SARS-CoV-2RNA,这表明治疗疗效,可能受剂量限制.
结论:
- 传统的废水处理方法部分减少了SARS-CoV-2 RNA.
- 三级处理和化对于最大限度地减少环境病毒释放至关重要.
- 需要进一步的研究来优化治疗以实现完全的病毒失活.
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