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प्रश्न
The purpose of biological treatment of waste water is to ______.
पर्याय
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?
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
Identify the type of microorganisms involved in floe formation during sewage treatment.
What happens during the course of sewage decomposition?
What would happen if oxygen availability to activated sludge flocs is reduced?
Why do we prefer to call secondary waste water treatment as biological treatment?
In what way anaerobic sludge digestion is important in sewage treatments?
Study the given diagram of the Sewage Treatment Plant (S.T.P.) and answer the question that follows:
- Which one of the two 'S.T.P.' (A) or (B) will be more effective in treating the human excreta in municipal waste?
- Write the steps followed in carrying the treatment of the sewage in step (Z), once the BOD of sewage is reduced significantly till it is passed on to the "anaerobic sludge digesters".
