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प्रश्न
Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called _______________.
पर्याय
primary treatment
secondary treatment
final treatment
amplification
उत्तर
Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called primary treatment.
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संबंधित प्रश्न
Explain the process of sewage water treatment before it can be discharged into natural water bodies.
Answer the following question.
What are ‘flocs’, formed during secondary treatment of sewage?
Answer the following question.
What are 'flocs', formed during secondary treatment of sewage?
One of the free-living anaerobic nitrogen-fixer is _________.
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.
The purpose of biological treatment of waste water is to ______.
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
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.
Why do we prefer to call secondary waste water treatment as biological treatment?
Given below is the flowchart of sewage treatment. Identify A, B, C, D and E and select the correct option.
