FEASIBILITY STUDY ON THE USE OF ULTRA VIOLET GERMICIDAL IRRADIATION (UVGI) SYSTEM IN INACTIVATION OF INDOOR AIR

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NADAFI K.; MOSAVI GH.R; NAZMARA SH.

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Journal: HAKIM RESEARCH JOURNAL Year:2004 | Volume:7 | Issue:2 Page(s): 41-46

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Title

FEASIBILITY STUDY ON THE USE OF ULTRA VIOLET GERMICIDAL IRRADIATION (UVGI) SYSTEM IN INACTIVATION OF INDOOR AIR

Author(s)

NADAFI K. | MOSAVI GH.R | NAZMARA SH. | Issue Writer Certificate

Keywords

INDOOR AIRQ4

MICROBIAL POLLUTANTQ4

DISINFECTIONQ4

UVGIQ4

Abstract

Introduction: Contamination of INDOOR AIR by MICROBIAL POLLUTANTs such as fungi, bacteria and viruses has been increasingly recognized as a public health problem and may be responsible for building-related illness (BRl) and sick building syndrome (SBS). Up to now, the different methods have been applied for killing/inactivation MICROBIAL POLLUTANTs in INDOOR AIR. One of the new methods is UVGI system. This study presents the feasibility of UVGI system in inactivation of air born pathogens. Methods: For this purpose a stand-alone UVGI unit has been used. The characteristics of the studied system are as fallows: radiation 11.2 W, contact time 0.6 S, airflow rate 30 m3/h. Heterotrophic plate count (HPC), ozone, air flow rate and temperature were selected as the most decisive healthy and technological parameters for a practical application. All of the parameters were examined in accordance with the standard methods. Results: This study showed that, this system can inactivate/kill 92.5 percent of microorganisms in passing air flow through the system. Average air temperature in outlet of system was 10 centigrade degree warmer than inlet air. Also, Ozone concentration in samples taken from inlet and outlet of reactor was under detection limit. Conclusion: Based on observed results, the use of tested system in practice seems to be a potential technology for INDOOR AIR DISINFECTION without ozone production as a bye-product.

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APA: Copy

NADAFI, K., MOSAVI, GH.R, & NAZMARA, SH.. (2004). FEASIBILITY STUDY ON THE USE OF ULTRA VIOLET GERMICIDAL IRRADIATION (UVGI) SYSTEM IN INACTIVATION OF INDOOR AIR. HAKIM RESEARCH JOURNAL, 7(2), 41-46. SID. https://sid.ir/paper/29263/en

Vancouver: Copy

NADAFI K., MOSAVI GH.R, NAZMARA SH.. FEASIBILITY STUDY ON THE USE OF ULTRA VIOLET GERMICIDAL IRRADIATION (UVGI) SYSTEM IN INACTIVATION OF INDOOR AIR. HAKIM RESEARCH JOURNAL[Internet]. 2004;7(2):41-46. Available from: https://sid.ir/paper/29263/en

IEEE: Copy

K. NADAFI, GH.R MOSAVI, and SH. NAZMARA, “FEASIBILITY STUDY ON THE USE OF ULTRA VIOLET GERMICIDAL IRRADIATION (UVGI) SYSTEM IN INACTIVATION OF INDOOR AIR,” HAKIM RESEARCH JOURNAL, vol. 7, no. 2, pp. 41–46, 2004, [Online]. Available: https://sid.ir/paper/29263/en

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