Science & Technology2012
What is the role of ultraviolet (UV) radiation in the water purification systems?
- It inactivates/kills the harmful microorganisms in
- It removes all the undesirable odours from the water.
- It quickens the sedimentation of solid particles,
removes turbidity and improves the clarity of water. Which of the statements given above is/are correct?
Explanation
The correct statement is 1 only, as ultraviolet (UV) radiation is primarily employed in water purification systems for its capability to inactivate or kill harmful microorganisms, including bacteria and viruses, without the need for chemical additives. UV radiation works by damaging the DNA of these pathogens, effectively preventing their replication and leading to their destruction. Unlike the other options, which focus on odor removal and sedimentation processes, UV treatment specifically targets biological contaminants, making it a crucial method in ensuring microbiologically safe drinking water.