The main characteristics of ultraviolet disinfection
Ultraviolet radiation is a type of electromagnetic wave, in which electrons in atoms transition from high energy levels to low energy levels, releasing excess energy as electromagnetic waves. The stronger the energy of electromagnetic waves, the higher their frequency and shorter their wavelength. The wavelength of visible light visible to the human eye is 400nm-700nm. For the naked eye, electromagnetic waves at 400nm are displayed in blue and purple, while electromagnetic waves at 780nm are displayed in orange and red. Ultraviolet refers to a wave with a wavelength shorter than 400nm, which is called ultraviolet (UV) because its spectrum is outside the purple region. Ultraviolet radiation refers to electromagnetic waves with wavelengths ranging from 100nm to 400nm, which cannot be seen by the human eye.
1. Efficient sterilization
The killing effect of ultraviolet radiation on bacteria and viruses is generally within 1 second. Traditional chlorine and ozone methods generally take 20 minutes to 1 hour to achieve the bactericidal effect of ultraviolet C.
2. Efficient and broad-spectrum sterilization
Ultraviolet technology can efficiently kill almost all bacteria and viruses, and it poses significant harm to some protozoa that are difficult to effectively kill with chlorine and ozone within the possible concentration of water disinfection.
3. Ecological
UV disinfection technology does not require any chemical agents during the disinfection process, so it does not cause secondary pollution to the water and surrounding environment, and does not change any components of the water.
4. Safe and reliable operation
Traditional disinfection techniques such as using chlorinated compounds or ozone, disinfectants belong to highly toxic, flammable, explosive and corrosive substances, and caution must be taken when using these substances. Modern ultraviolet water disinfection systems are a relatively safe and reliable technology for the surrounding environment and operators.
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