Discussion
Ultraviolet disinfection is limited in application chiefly because it
Answer: D
Correct answer: leaves no residual and needs clear water
Ultraviolet inactivates organisms only while they are passing the lamp, so nothing protects the water afterwards and any recontamination downstream goes unchecked. It also requires the water to be clear, since turbidity shields organisms from the light. It is therefore best suited to point-of-use treatment or as a final step on already clarified water.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development