Air disinfection for SARS-CoV-2 and other pathogens: A review
GUO Yuntao1, ZHANG Dongheyu1, ZHANG Liyang1, PENG Siqi1, LUO Haiyun1, TIE Jinfeng2, WANG Xinxin1
1. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; 2. Department of Disinfection and Infection Control, Chinese PLA Center for Disease Control and Prevention, Beijing 100071, China
Abstract:SARS, MERS, SARS-CoV-2 and other pathogens have caused many pandemics in the world. These pathogens are often spread as aerosols in the air. Thus, fast, efficient air disinfection is essential for effectively limiting the spread of the pathogens. A low temperature plasma disinfection method that deactivates many kinds of bacteria, fungi, viruses, spores and other microorganisms has attracted much attention due to its efficiency and environmental friendliness. Disinfection methods can be divided into physical disinfection, chemical disinfection and comprehensive disinfection based on their key factors. This paper reviews the disinfection mechanisms, application scenarios, development progress and other characteristics of various disinfection methods. The review then focuses on the application of these technologies to the disinfection of pathogens such as SARS-CoV-2 with emphasis on plasma disinfection including the key methods and prospects of plasma disinfection in central air conditioning systems. Finally, the Gong Zi Ting performance center of Tsinghua University is used as an example to show the practicality of this surface discharge plasma disinfection method as an example for further applications. This method can significantly improve epidemic prevention and control, as well as the construction of national biosafety systems.
郭云涛, 张东荷雨, 张丽阳, 彭思琦, 罗海云, 帖金凤, 王新新. 新型冠状病毒等病原体空气消毒技术综述[J]. 清华大学学报(自然科学版), 2021, 61(12): 1438-1451.
GUO Yuntao, ZHANG Dongheyu, ZHANG Liyang, PENG Siqi, LUO Haiyun, TIE Jinfeng, WANG Xinxin. Air disinfection for SARS-CoV-2 and other pathogens: A review. Journal of Tsinghua University(Science and Technology), 2021, 61(12): 1438-1451.
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