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Get Answers to all your Questions
Which of the following in sewage treatment removes suspended solids?
- Option 1)
Tertiary treatment
- Option 2)
Secondary treatment
- Option 3)
Primary treatment
- Option 4)
Sludge treatment
Answers (1)
As we learnt in concept
Primary treatment of sewage -
These treatment steps basically involve physical removal of particles – large and small – from the sewage through filtration and sedimentation.
- wherein
These are removed in stages; initially, floating debris is removed by sequential filtration. Then the grit (soil and small pebbles) are removed by sedimentation. All solids that settle form the primary sludge and the supernatant forms the effluent. The effluent from the primary settling tank is taken for secondary treatment.
Primart treatment steps basically involve physical removal of particles – large and small – from the sewage through filtration and sedimentation.
Option 1)
Tertiary treatment
This option is incorrect.
Option 2)
Secondary treatment
This option is incorrect.
Option 3)
Primary treatment
This option is correct.
Option 4)
Sludge treatment
This option is incorrect.
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