Ultraviolet disinfection technology has been the star performer in water and air treatment over the past two decades, due in part to its ability to provide treatment without the use of harmful chemicals.
UV represents wavelengths that fall between visible light and x-ray on the electromagnetic spectrum. The UV range can be further divided into UV-A, UV-B, UV-C, and Vacuum-UV. The UV-C portion represents wavelengths from 200 nm – 280 nm, the wavelength used in our LED disinfection products.
UV-C photons penetrate cells and damage the nucleic acid, rendering them incapable of reproduction, or microbiologically inactive. This process occurs in nature; the sun emits UV rays that perform this way.
How Does UV-C LED Disinfection Work?
Different types of UV-C disinfection can work depending on the scale of the solution being implemented. However, the principles of how UV-C disinfection works remain the same.
An LED produces a pre-selected wavelength from a small amount of electricity. The LED then emits UV-C photons through the water that penetrate the cells and damage the nucleic acid in the microorganism DNA.
As these cells cannot replicate, it renders the harmful microorganism inactive. As a result, UV-C LEDs allow for high-intensity radiation to kill the bacteria in seconds, and its effectiveness is measured in LOGs.
Applications of UV-C LEDs
There are many applications where UV-C LEDs are being tested to see if they can become a solution to not just current disinfection challenges but our future ones too.
Drinking water disinfection, water purification, and treatment are where the technology is gaining traction as the solution is chemical-free, has no risk of creating harmful by-products, is an effective pathogen inactivation, and is very low maintenance.
As well as water, UV-C LEDs are offering disinfection for both air and surfaces. UV-C LED air purifiers for HAVC (heating, ventilation, and air conditioning) are being used increasingly in the commercial landscape.
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