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Potential spreading risks and disinfection challenges of medical wastewater by the presence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) viral RNA in septic tanks of Fangcang Hospital
Zhang, Dayi; Ling, Haibo; Huang, Xia; Li, Jing; Li, Weiwei; Yi, Chuan; Zhang, Ting; Jiang, Yongzhong; He, Yuning; Deng, Songqiang; Zhang, Xian; Wang, Xinzi; Liu, Yi; Li, Guanghe; Qu, Jiuhui
2020-11-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume741Pages:1-11
AbstractThe outbreak of coronavirus infectious disease-2019 (COVID-19) pneumonia raises the concerns of effective deactivation of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) in medical wastewater by disinfectants. In this study, we evaluated the presence of SARS-CoV-2 viral RNA in septic tanks of Wuchang Cabin Hospital and found a striking high level of (0.5-18.7) x 103 copies/L after disinfection with sodium hypochlorite. Embedded viruses in stool particles might be released in septic tanks, behaving as a secondary source of SARSCoV-2 and potentially contributing to its spread through drainage pipelines. Current recommended disinfection strategy (free chlorine >= 0.5 mg/L after at least 30 min suggested by World Health Organization; free chlorine above 6.5 mg/L after 1.5-h contact by China Centers for Disease Control and Prevention) needs to be reevaluated to completely remove SARS-CoV-2 viral RNA in non-centralized disinfection system and effectively deactivate SARS-CoV-2. The effluents showed negative results for SARS-CoV-2 viral RNA when overdosed with sodium hypochlorite but had high a level of disinfection by-product residuals, possessing significant ecological risks. (c) 2020 Elsevier B.V. All rights reserved.
Department中国科学院饮用水科学与技术重点实验室
KeywordSevere Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Disinfection Cabin hospital Disinfection by-products
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/45346
Collection中国科学院饮用水科学与技术重点实验室
Recommended Citation
GB/T 7714
Zhang, Dayi,Ling, Haibo,Huang, Xia,et al. Potential spreading risks and disinfection challenges of medical wastewater by the presence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) viral RNA in septic tanks of Fangcang Hospital[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,741:1-11.
APA Zhang, Dayi.,Ling, Haibo.,Huang, Xia.,Li, Jing.,Li, Weiwei.,...&Qu, Jiuhui.(2020).Potential spreading risks and disinfection challenges of medical wastewater by the presence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) viral RNA in septic tanks of Fangcang Hospital.SCIENCE OF THE TOTAL ENVIRONMENT,741,1-11.
MLA Zhang, Dayi,et al."Potential spreading risks and disinfection challenges of medical wastewater by the presence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) viral RNA in septic tanks of Fangcang Hospital".SCIENCE OF THE TOTAL ENVIRONMENT 741(2020):1-11.
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