UV method

 

    Ultraviolet (ultraviolet) is a low-energy electromagnetic radiation, you can destroy a variety of microorganisms. Among them, Gram-negative bacteria is the most sensitive, followed by Gram-positive bacteria, spores again, the strongest fungal spores. The direct mechanism of action of UV light is to inactivate microorganisms by destroying the nucleic acids and proteins of the microorganisms, etc. The indirect effect is to kill the microorganisms by the ozone generated by UV irradiation. A variety of ultraviolet light direct irradiation training room (air, ground, table surface, etc.) for disinfection, usage is simple, effective.

 

    UV disinfection with UV radiation intensity and radiation dose was positively correlated with the radiation intensity decreases with the distance from the lamp, the radiation dose and exposure time is proportional to. Therefore, the distance between the UV lamp and the object to be illuminated and the irradiation time should be suitable. If using 2W from the ground 30W UV lamp can irradiate 9m room, daily exposure to 2 to 3 hours, during the interval of 30 minutes. 2m away from the ground when the lamp, to extend the irradiation time, 2.5m above the less effective.

 

    UV radiation tabletop distance should not exceed 1.5m, irradiation time to 30 minutes is appropriate. UV lamp irradiation is also affected by other environmental conditions, such as room temperature and humidity, air cleanliness, shelter, bacteria, UV lamp aging degree.

 

    UV is not only harmful to the skin and eyes, but also to cultured cells and reagents also have a negative impact, therefore, can not open the UV lamp to work. The ozone generator disinfection method generates ozone by irradiating ordinary air with ultraviolet rays having a wavelength of less than 200 nm. When sufficient UV energy is added to the oxygen molecules, the oxygen molecules are free to split into free monoatomic oxygen. These atoms collide with other oxygen molecules to produce ozone molecules. Also common method, this method is more efficient but costly.