UV-C water purification: UV-C water purification is one of the most effective methods to disinfect water. In this technique, special 'germicidal' UV-C lamps which emit high-intensity ultraviolet light, purifies the water without the use of harsh chemicals that are harmful to the environment.
Most water purifiers in India are fitted with a UV-C tube. UV-C radiations destroy harmful bacteria and virus but doesn’t remove important mineral salts from the water.
Hence, this method is considered healthy. It is also sustainable as no toxic by-products are formed during the process.
The electromagnetic spectrum between X-rays and visible light is called 'ultraviolet radiation'. Sunlight is a prime example of this, which mainly produces three types of UV-A, UV-B and UV-C ultraviolet rays. Of these, UV-C rays have the shortest wavelength.