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प्रश्न
The purpose of biological treatment of waste water is to ______.
विकल्प
Reduce BOD
Increase BOD
Reduce sedimentation
Increase sedimentation
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उत्तर
The purpose of biological treatment of waste water is to Reduce BOD.
संबंधित प्रश्न
What is the key difference between primary and secondary sewage treatment?
Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C; but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20 mg/L, 8 mg/L and 400 mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each, assuming the river water is relatively clean?
Why is this sewage water treatment essential?
In which of the following microbial digestion of organic wastes of sewage takes place?
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
Which of the following occurs during tertiary treatment?
Which of the following process is a part of preliminary treatment of sewage?
During sewage, treatment biogas is produced wits which include:
In which of the following step large and small particles are removed from sewage through sequential filtration and sedimentation?
What is the group of bacteria found in both the rumen of cattle and shidge of sewage treatment?
