Question:
Secondary treatment of sewage water:
A.Removes solid particles and debris
B.Removes dissolved and suspended biological matter
C.Involves conventional sedimentation and filtration
D.Reduces the bio-chemical oxygen demand of water
E.Increases the bio-chemical oxygen demand of water
Choose the correct answer from the options given below:
Secondary treatment of sewage water:
A.Removes solid particles and debris
B.Removes dissolved and suspended biological matter
C.Involves conventional sedimentation and filtration
D.Reduces the bio-chemical oxygen demand of water
E.Increases the bio-chemical oxygen demand of water
Choose the correct answer from the options given below:
A.Removes solid particles and debris
B.Removes dissolved and suspended biological matter
C.Involves conventional sedimentation and filtration
D.Reduces the bio-chemical oxygen demand of water
E.Increases the bio-chemical oxygen demand of water
Choose the correct answer from the options given below:
Show Hint
Secondary treatment focuses on reducing BOD and cleaning biological matter, which is essential for safe water disposal.
Updated On: Apr 28, 2025
- A,B and D only
- B and E only
- B and D only
- A,C and E only
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Secondary treatment of sewage water primarily removes dissolved and suspended biological matter through processes like biological treatment, which helps reduce the biochemical oxygen demand (BOD) of the water. It does not increase BOD, which would be counterproductive to water quality.
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