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प्रश्न
Why is this sewage water treatment essential?
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उत्तर
Importance of sewage water treatment:
- The sewage water contains pathogenic microorganisms like bacteria, viruses, protozoa, and parasitic worms, which can spread a variety of diseases.
- Also, it contains harmful chemicals that may cause toxicity if mixed with the natural resources of water. Therefore, sewage water treatment is essential before it can be discharged into natural bodies.
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संबंधित प्रश्न
Small part of activated sludge is passed back into primary sedimentation tank.
If the above statement is correct then rewrite as it is and in case it is incorrect then reframe it.
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
Into which of the following the sewage water is pumped after preliminary treatment?
______ refers to the organic matter which settles down after physical treatment of sewage.
Study the following statements regarding tertiary treatment of sewage and choose the correct option.
i. It produces methane gas.
ii. The effluents formed from these plants undergo chlorination.
iii. BOD is significantly increased at this step.
iv. It includes screening and passage of effluent through grit chamber.
Which of the following is put into Anaerobic sludge disaster for further sewage treatment?
What would happen if oxygen availability to activated sludge flocs is reduced?
What would happen if a large volume of untreated sewage is discharged into a river?
In what way anaerobic sludge digestion is important in sewage treatments?
Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from ______.
