Germicidal mists and vapours in air disinfection
نویسندگان
چکیده
منابع مشابه
The history of ultraviolet germicidal irradiation for air disinfection.
Public health concerns such as multi- and extensive drug-resistant tuberculosis, bioterrorism, pandemic influenza, and severe acute respiratory syndrome have intensified efforts to prevent transmission of infections that are completely or partially airborne using environmental controls. One such control, ultraviolet germicidal irradiation (UVGI), has received renewed interest after decades of u...
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A comprehensive treatment of the mathematical basis for modeling the disinfection process for air using ultraviolet germicidal irradiation (UVGI). A complete mathematical description of the survival curve is developed that incorporates both a two stage inactivation curve and a shoulder. A methodology for the evaluation of the three-dimensional intensity fields around UV lamps and within reflect...
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In-duct ultraviolet germicidal irradiation (UVGI) systems treat moving air streams in heating, ventilation, and air-conditioning (HVAC) systems to inactivate airborne microorganisms. UVGI system performance and costs to implement and operate the system depend greatly on the output of the UV lamps and the exposure time, which are affected by the temperature and the velocity of the air passing th...
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Many industrial processes may give r i se to flammable concentrations of mists or hot vapours which cannot be measured using conventional explosimeters. Even with gases, uncertainty as to the chemical composition of the fuel may make it difficult to a ssess the fire and explosion hazard. A new type of instrument is described that measures the concentration of a gas, mis t or vapour in te rms of...
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The present study was aimed to design a simple model to check efficacy of germicidal UV tube, to standardise the position, distance and time for UV light and also to find out its efficacy against medically important bacteria, the bacterial spores and fungi. The microbial cultures tested included gram positive and gram negative bacteria, bacterial spores and fungal spores. The microbes streaked ...
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ژورنال
عنوان ژورنال: Epidemiology and Infection
سال: 1944
ISSN: 0950-2688,1469-4409
DOI: 10.1017/s0022172400013139