Academician Hou Li'an develops integrated air purification and killing technology war "epidemic"

BEIJING, July 5 (Reporter Sun Zifa) for the new coronavirus transmission of the main ways include contact transmission, droplet transmission, confined space aerosol transmission, and the latest two modes of transmission are air as a medium characteristics, the Chinese Academy of Engineering
, China's special One of the pioneers of pollution prevention and control technology, environmental engineering expert Hou Li'an rate scientific research team, focus on air purification and killing technology of the war "epidemic" scientific research, in order to effectively block the new coronavirus through the air suspended particulate matter in the epidemic area to provide a strong scientific and technological support.
in a recent online interview organized by the China Society of Science and Technology Journalism, Science, Technology Innovation and Brand magazine, Hou Li'an
said that the most important and urgent measure to strengthen indoor air pollution and transmission blocking is the huge risk of the spread of the new coronavirus through aerosols in the affected areas. In order to solve the problem of air pollution in epidemic areas and protect health care workers from infection, he and his research team proposed hospital air quality assurance solutions to meet different epidemic prevention needs, with the aim of providing effective technical support for the complete elimination of disease-caused microorganisms in the air in affected areas.After theput forward the proposal, Hou Li'an
led Professor Li Angui of Xi'an University of Architecture and Technology, Professor Wu Minghong of Shanghai University, Professor Chen Guanyi of Tianjin University, Professor Zhang Lin of Zhejiang University, Professor Wang Bo of Lanzhou University, etc. to carry out emergency scientific research on air purification and killing technology in the disease area. Innovative technology integration, research and development of "indoor air killing - new wind system protection - negative pressure out of the wind inactivation" full process of air purification technology and equipment - "cloud-type sterile air purifier", and put into the first line of use, its main function is to effectively block suspended particulate matter in the air.
Hou Li'an pointed out that "cloud-type sterile air purifier" as a special period of air purification equipment stationed in the new coronary pneumonia disease area, it is based on the research team independently developed "cloud-based technology", chlorine dioxide disinfection and ultraviolet disinfection and other technologies as a supplement, will be a number of technical rational integration, with dual killing technology to ensure that pathogens are thoroughly inactivated treatment, to make up for the shortcomings of a single technology. Not only that, the purifier does not need filter material, high purification accuracy, can remove dust in the air, PM1, PM2.5, droplets and other fine particles, so as to achieve the goal of purifying the air, blocking the spread of viruses and bacteria in the disease area.
In addition to air purifiers, Hou Li'an team also developed a "new technology for the transformation of civilian housing negative pressure wards", the technology uses the advanced "source of new wind purification - indoor functional materials sterilization - air disinfection - emission fatigue killing" integrated concept, in a very short period of time with common equipment, low-cost transformation of a civilian room with negative pressure and disinfection functions of the ward, in order to effectively solve the problem of insufficient capacity of the disease area.On the basis of the series of scientific research achievements applied to the first line of anti-epidemic, Hou Li'an team will form a more complete research report based on the results of the new coronavirus prevention and control research, and participate in the preparation of the "Office, Residential and Medical Environment Epidemic Prevention Design and Environmental Security Operation Guide" issued by the Ministry of Housing, Housing and Medical Environment Prevention and Environmental Security during the epidemic, providing scientific and technological support for indoor air environmental prevention design in public buildings and indoor air safety and security during the outbreak.
During the outbreak, the Ministry of Housing and Construction issued another environmental epidemic prevention guide, "Public and residential building indoor air environment epidemic prevention design and safety guidance (trial)", also led by Hou Li'an
Professor Li Angui, Professor Wu Minghong, Professor Gao Ran, etc. as the main drafter to participate in the preparation of the completion.
Hou Li'an said, "Public and residential building indoor air environment epidemic prevention design and safety guidance (trial)" by the Chinese Academy of Engineering, Xi'an University of Architecture and Technology, the rocket military engineering university, China Architectural Design Research Institute Co., Ltd., China Southwest Architecture Design Research Institute Co., Ltd., Tsinghua University, Zhejiang University, Lanzhou University and other institutions and units to participate in the preparation, is China's first public and residential buildings indoor air environment epidemic prevention and development of national emergency design and management guide. At the expert review meeting organized by the Ministry of Housing and Construction, the experts of the review team agreed that the Guidelines are informative and operational, and have important guiding significance for the prevention and control of future outbreaks in civil buildings in China.
In the face of the increasingly severe global epidemic situation, with the establishment of a community of human destiny as the starting point, Hou Li'an team shared the Guide with scholars in Sweden and Germany, and translated into Swedish and German by scholars from both countries, respectively, to provide reference for the fight against the epidemic in Sweden and Germany.well known that science and technology are the most powerful weapons of human beings with diseases
and that mankind's victory over the epidemic cannot be separated from scientific development and technological innovation, as well as from scientific advice and decision-making.
It is understood that in the intensive scientific research and actively donate materials to the affected areas at the same time, in order to explore and build China's special pollution prevention and control system to make a significant contribution to Hou Li'an


- Conducting risk assessments of air pollution and transmission in buildings isolated from targeted hospitals and suspected cases, as well as in densely populated old neighbourhoods, commercial buildings and schools.
- strengthen public environmental and health education, through the network, the media to carry out outbreak notification and education work, improve the public's environmental and health literacy.
- To set up a group of experts from relevant fields at home and abroad to carry out indoor air pollution and transmission blocking machinery and technology research, and to develop targeted building air pollution and transmission blocking complete sets of technical programs, norms and guidelines.
- Take effective engineering and technical measures for buildings with different types of ventilation to prevent the spread of new coronaviruses in indoor air. (Complete)