在中东最大的废水处理厂中,SARS-CoV-2 是一个问题吗?
Hasan Pasalari1,2, Angila Ataei-Pirkooh3, Mitra Gholami1,2
1Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran.
Heliyon
|May 30, 2023
概括
在德黑兰一家污水处理厂的原始废水中检测到SARS-CoV-2,但不在废水或空气中,这表明工人的感染风险较低. 为废水流行病学,建议对固体进行进一步的研究.
科学领域:
- 环境微生物学环境微生物学
- 公共卫生 公共卫生
- 病毒学 病毒学
背景情况:
- 污水处理厂 (WWTPs) 接收了由感染个体倾倒的SARS-CoV-2.
- 在流行病期间,从WWTP传播SARS-CoV-2的可能性需要调查.
研究的目的:
- 为了调查 SARS-CoV-2 存在于德黑兰主要 WWTP 的原始废水,废水和空气中.
- 评估WWTP工人和员工感染SARS-CoV-2的风险.
主要方法:
- 在一年的时间内,每月抽取原始废水,废水和空气的样本.
- 使用QIAamp病毒RNA迷你套件和实时RT-PCR检测SARS-CoV-2RNA.
主要成果:
- 在原始废水样本中检测到SARS-CoV-2RNA.
- 从WWTP的废水或空气样本中没有检测到SARS-CoV-2.
- 这表明WWTP人员感染的风险很低或很小.
结论:
- 废水监测证实了SARS-CoV-2在原始流体中的存在.
- 污染物可能不会通过废水或空气对工人造成重大传播风险.
- 对于基于废水的综合性流行病学,需要对WWTP固体和生物质中的SARS-CoV-2进行进一步的研究.
相关概念视频
Bioremediation
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
Microbial Bioremediation of Hydrocarbons
Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...
Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
Biological Treatment of Effluent and Waste Water
Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...
Clinical Significance of Antibiotic Resistance
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...


