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प्रश्न
What would happen if a large volume of untreated sewage is discharged into a river?
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उत्तर
It untreated sewage is discharged directly into rivers it will lead to serious pollution of the waters with organic matter and pathogenic bacteria, Protozoa and many other diseases. This water, if used will cause outbreaks of water-borne diseases.
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संबंधित प्रश्न
Explain the process of secondary treatment given to the primary effluent up to the point it shows significant change in the level of biological oxygen demand (BOD) it.
Distinguish between the roles of flocs and anaerobic sludge digesters in sewage treatments.
Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called _______________.
Why is this sewage water treatment essential?
Name the chamber in which the suspended objects are filtered and removed during sewage treatment?
Due to which of the following reason/s sewage water cannot be discharged directly into river?
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
In the process of biogas production which of the following anaerobic bacteria are used?
Small part of activated sludge is passed back into ______ and major part is pumped into large tanks called ______.
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
Which of the following process is a part of preliminary treatment of sewage?
In the process of sewage treatment, the activated sludge is digested by ______
In which of the following step large and small particles are removed from sewage through sequential filtration and sedimentation?
The aeration tank of a sewage treatment plant is not functioning properly. Explain in detail the impact of this on the treatment of sewage and BOD of the effluent.
Explain the steps involved in preliminary treatment of sewage.
During primary sewage treatment, floating debris is separated by which physical process?
By what percentage does the decomposition of organic matter by aerobic bacteria in aeration tanks typically lower the BOD during secondary treatment?
