Question

7. Explain the following processes:
b. UV filtration
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Answer 1

Answer:

Ultraviolet (UV) rays penetrate harmful pathogens in your home's water and destroy illness-causing microorganisms by attacking their genetic core (DNA). ... UV water purification is usually used with other forms of filtration such as reverse osmosis systems or carbon block filters.

Explanation:

A UV water purifier exposes living organisms, such as bacteria, viruses, or cysts (like Cryptosporidium and Giardia) to a germicidal ultraviolet wavelength. With enough energy, UV radiation at the 254-nm wavelength disrupts the DNA in pathogenic microorganisms so they cannot reproduce.