NEET Biology question
Which of the following correctly completes the statement: 'In secondary sewage treatment, once BOD has been significantly reduced, the effluent is passed into a where bacterial flocs are allowed to sediment.'
Answer: (A)
Solution
After BOD reduction in the aeration tank, the effluent is passed into a settling
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account