New device for air disinfection with a shielded uv radiation and ozone

Q2 Agricultural and Biological Sciences Agronomy research Pub Date : 2021-01-01 DOI:10.15159/AR.21.068

A. Martinovs, L. Mezule, Ritvars Rēvalds, Viktorija Pizica, V. Deņisova, A. Skudra, G. Koļčs, Edgars Zaicevs, T. Juhna

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引用次数: 4

Abstract

Indoor air disinfection has become particularly relevant recently because of the Covid-19 pandemics. A shielded device for air and surface disinfection with UV radiation and ozone has been developed. It contains 28 low intensity (11 W) UV lamps (254 nm) in a specially designed three-dimensional grid to provide a large flow cross-sectional area and long path for the air particles to be irradiated. The device can be used in medical institutions, veterinary clinics, manufacturing plants, public premises, poultry, and livestock farms. It does not generate air-ions and ozone concentrations do not exceed the allowed 8-hour average values. The large number of UV lamps and powerful fans ensure air disinfection in large rooms in a relatively short time (400 m3 h-1). Simultaneously, the floor surface under the appliance is disinfected. Disinfection efficiency tests demonstrated 99.9999% reduction for Escherichia coli, Staphylococcus aureus and Pseudomonas phage 6 aerosols within a single transfer through the system (10 seconds of treatment). The housing of the device protects from direct UV radiation;therefore, people can be in the room during the operation of the device. © 2021, Eesti Pollumajandusulikool. All rights reserved.

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屏蔽紫外线和臭氧的新型空气消毒装置

由于Covid-19大流行，室内空气消毒最近变得尤为重要。研制了一种利用紫外线和臭氧对空气和表面进行消毒的屏蔽装置。它在一个特别设计的三维网格中包含28个低强度(11 W)紫外线灯(254 nm)，为空气颗粒提供大的流动截面积和长路径照射。该设备可用于医疗机构、兽医诊所、制造工厂、公共场所、家禽和牲畜养殖场。不产生空气离子，臭氧浓度不超过允许的8小时平均值。大量的紫外线灯和强大的风扇，确保在相对短的时间内(400 m3 h-1)消毒大房间的空气。同时，对器具下方的地板表面进行消毒。消毒效率测试表明，在通过该系统的单次转移(处理10秒)内，大肠杆菌、金黄色葡萄球菌和假单胞菌噬菌体6气雾剂的消毒效率降低了99.9999%。该设备的外壳可以防止紫外线直接照射，因此在设备运行期间可以有人在房间内。©2021,Eesti Pollumajandusulikool。版权所有。

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来源期刊

Agronomy research Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

7 weeks

期刊介绍： Agronomy Research is a peer-reviewed international Journal intended for publication of broad-spectrum original articles, reviews and short communications on actual problems of modern biosystems engineering including crop and animal science, genetics, economics, farm- and production engineering, environmental aspects, agro-ecology, renewable energy and bioenergy etc. in the temperate regions of the world.