Development of Equipment for Air Decontamination in the Ventilation and Air Conditioning Systems of Public Buildings with the Use of the Photocatalysis and Plasmochemistry Methods




air dispersion, photocatalysis, pathogenic microflora, efficiency, plasmachemistry, purification


Introduction. Seasonal waves of SARS outbreaks, including COVID-19, necessitate the development of measures to create health-safe conditions in crowded places.
Problem Statement. The existing supply and exhaust systems of the centralized heating, ventilation and air conditioning (HVAC) do not protect against infection, moreover, they serve as a source for the accumulation and spread of pathogenic microorganisms. Finding effective ways to clean the air in places of mass gathering of people as a component of anti-epidemic measures is an urgent task.
Purpose. The purpose of this research is to develop and create equipment for cleaning and disinfecting air from airborne pathogenic microflora in the HVAC systems, which can be installed in the centralized ventilation systems of buildings without their reconstruction and modifications in technological parameters.
Material and Methods. A complex of physical and chemical methods, which includes analytical and experimental techniques with the use of the theory of electrogas dynamics of dispersed systems and the raster scanning microscopy methods, and the methods for comparing the same quality indicators of specimens and initial samples have been used.

Results. To study the efficiency of both the individual plasma-chemical and photocatalytic modules, as well as the equipment as a whole under the operating conditions that simulate those of the centralized ventilation system, an experimental stand has been created. The optimal technological parameters of the processes for raising the efficiency of air disinfection and purification in the HVAC systems by the plasma photocatalysis methods have been determined. Technical solutions for increasing the energy efficiency of the experimental stand for the complex air purification and disinfection from a wide class of air pollutants in the supply and exhaust ventilation systems of buildings have been proposed.ent, as well as to determine the required level of innovation factor by maximizing the hidden innovation capacity.
Conclusions. Air disinfection by the method of combined plasma-photocatalytic effect on the air flow with a system for catalytic-thermal decomposition of excess ozone ensures effectively removing pollutants and allows reducing the microbiological contamination of the air to a safe level.


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Somsen, G., Van, Rijn C., Kooij, S., Bem, R., Bonn, D. (2020). Measurement of small droplet aerosol concentrations in public spaces using handheld particle counters. Phys. Fluids., 32(12), 121707.

Transmission of SARS-CoV-2: implications for infection prevention precautions. Scientific Brief: World Health Organization, 09.07.2020. URL: (Last accessed: 15.06.2022).

van Doremalen, N., Bushmaker, T., Morris, D. H., Holbrook, M. G., …, Munster, V. J. (2020). Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1. N. Engl. J. Med., 382(16), 1564-1567.

Sodiq, A., Khan, M. A., Naas, M., Amhamed, A. (2021). Addressing COVID-19 contagion through the HVAC systems by reviewing indoor airborne nature of infectious microbes: will an innovative air recirculation concept provide a practical solution. Environ. Res., 199, 11329.

Ding, J., Yu, C. W., Cao, S.-J. (2020). HVAC systems for environmental control to minimize the COVID-19 infection. Indoor and Built., 29(9), 1195-1201.

Vranay, F., Pirsel, L., Kacik, R., Vranayova, Z. (2020). Adaptation of HVAC systems to reduce the spread of COVID-19 in buildings. Sustainability, 12(23), 9992-1012.

Kryvomaz, T., Varavin, D., Sipakov, R., Kuzmishina, R. (2020). Impact Assessment of the ventilation systems on microbiological safety and microclimatic conditions of premises. Ventilation, Illumination and Heat Gas Supply, 35(12), 49-61.

Ogen, Y. (2020). Assessing nitrogen dioxide (NO2 ) levels as a contributing factor to coronavirus (COVID-19) fatality. Sci. Total Environ., 726, 138605.

Heating, ventilation and heating. Ministry of Regional Development of Housing and Housing of Ukraine Ministry of Regional Development of Housing and Housing of Ukraine. Kyiv, 2013. 141 р. [in Ukrainian].

Shamim, J. A., Hsu, W. L., Daiguji, H. (2022). Review of component designs for post-COVID-19 HVAC systems: Possibilities and challenges. Heliyon, 8(3), 1-14.

Air purification and disinfection system. Technology of Airlife Swiss AG. URL: (Last accessed: 28.06.2022).

Schmidt, M., Jõgi, I., Hołub, M., Brandenburg, R. (2015). Non-thermal plasma based decomposition of volatile organic compounds in industrial exhaust gases. Int. J. Environ. Sci. Technol., 12, 3745-3754.

Escobedo, S., de Lasa, H. (2020). Photocatalysis for Air Treatment Processes: Current Technologies and Future Applications for the Removal of Organic Pollutants and Viruses. Catalysts, 10(9), 1-39.

Okrasa, M., Hitz, J., Nowak, A., Brochocka, A., Thelen, C., Walczak, Z. (2019). Adsorption Performance of ActivatedCarbon-Loaded Nonwoven Filters Used in Filtering Facepiece Respirators. Int. J. Environ. Res. Public Health, 16, 1-16.

Soloviev, S. O., Kyriienko, P. I., Popovych, N. O., Larina, O. V. (2019). Development of catalysts for neutralizing toxic nitrogen oxides in gas emissions of nitrogen acid production. Sci. Innov., 15(1), 59-71.

Besov, A. S., Vorontsov, A. V., Parmon, V. N. (2009). Fast adsorptive and photocatalytic purification of air from acetone and dimethyl methylphosphonate by TiO2 aerosol. Applied Catalysis. B: Environmental, 89(3-4), 602-612.

Altan, M., Yildirim, H. (2012). Mechanical and Antibacterial Properties of Injection Molded Polypropylene/TiO2 NanoComposites: Effects of Surface Modification. J. Mater. Sci. Technol., 28(8), 686-692.

On the approval of hygienic regulations on the permissible content of chemical and biological substances in the air of the working area: Ministry of Health of Ukraine. Order, Regulation No. 1596 dated 07/14/2020. Official Gazette of Ukraine 2020. No. 64. p. 111, article 2085.

New WHO Global Air Quality Guidelines// Guidelines of the WHO European Center for Environment and Health. (Last accessed: 15.06.2022).

Batakliev, T., Georgiev, V., Anachkov, M., Rakovsky, S., Zaikov, G. (2014). Ozone decomposition. Interdiscip Toxicol. Interdisciplinary toxicology, 7(2), 47-59.

Tkachenko, S. N. (2004). Homogeneous and heterogeneous decomposition of ozone. (PhD) (Chemistry). Moscow [in Russian].

Kozlov, D. V., Vorontsov, A. V. (2011). Development of multistage photocatalytic reactors for air purification. Chemistry in the interests of sustainable development, 19, 67-76 [in Russian].

Qing, W., Liu, F., Yao, H., Sun, S., Chen, C., Zhang, W. (2020). Functional catalytic membrane development: A review of catalyst coating techniques. Adv. Colloid. Interface Sci., 282, 102207.

Cohe, J. D., Sierra-Gallego, G., Tobón, J. I. (2015). Evaluation of Photocatalytic Properties of Portland Cement Blended with Titanium Oxynitride (TiO2 -xNy) Nanoparticles. Coatings, 5, 465-476.

Alonso-Tellez, A., Massona, R., Robert, D., Keller, N., Keller, V. (2012). Comparison of Hombikat UV100 and P25 TiO2 performance in gas-phase photocatalytic oxidation reactions. Journal of Photochemistry and Photobiology. A: Chemistry, 250, 58-65.

Rafati, M., Fauchoux, N. M., Besant, R. W., Simonson, C. J. (2014). A review of frosting in air-to-air energy exchangers. Renewable and Sustainable Energy Reviews, 30, 538-554.

Kana , P., Jedlikowski, A., Karpuk, M., Anisimov, S., Vager, B. (2022). Heat transfer in the regenerative heat exchanger Author links open overlay panel. Applied Thermal Engineering, 215, 118922.

Schneider, J., Matsuoka, M., Takeuchi, M., Zhang, J., Horiuchi, Y., Anpo, M., Bahnemann, D .W. (2014). Understanding TiO2 Photocatalysis: Mechanisms and Materials. Chemical Reviews, 114(19), 9919-9986.

Dolinsky, A. A., Grabov, L. N., Moskalenko, A. A., Grabova, T. L. Logvinenko, P. N. (2014). Cooling Characteristics of Meso- and Nanofluids Prepared by the DPIE Method. Materials Performance and Characterization, ASTM International, 3(4), 337-351.

Micro- and nano-level processes in discrete-pulse energy input technologies: Thematic collection of articles (2015). [Еd. A.A. Dolynskyi]. Kyiv: Akademperiodika. 464 р. [in Russian].

Salustiano, V. C., Andrade, N. J., Brandão, S. C. Cardoso, Azeredo Raquel Monteiro Cordeiro, Lima, S. A. K. (2003). Microbiological air quality of processing areas in a dairy plant as evaluated by the sedimentation technique and a onestage air sampler. Brazilian Journal of Microbiology, 34, 255-259.

Napoli, Hr., Marcotrigiano, V., Montagna, M. T. (2012). Air sampling procedures to evaluate microbial contamination: a comparison between active and passive methods in operating theatres. Napoli et al. BMC Public Health, 12, 594-599.

ISO 14698: Cleanrooms and associated controlled environments - Biocontamination control. Part 1: General principles and methods; Part 2: Evaluation and interpretation of biocontamination. International Organization for Standardization ISO. Geneva (September 2003).

Photocatalytic purification and treatment of water and air. (1993). (Eds. D. F. Ollis and H. Al-Ekabi). Elsevier Science Publishers BV. Amsterdam. 820 p.




How to Cite

Lobanov, L., Chalaev, D., Goncharov, P., Grabova, T., Pashchin, M., Goncharovа O., & Sydorenko, V. (2023). Development of Equipment for Air Decontamination in the Ventilation and Air Conditioning Systems of Public Buildings with the Use of the Photocatalysis and Plasmochemistry Methods. Science and Innovation, 19(1), 71–85.



Scientific and Technical Innovation Projects of the National Academy of Sciences