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प्रश्न
Answer the following question.
What are 'flocs', formed during secondary treatment of sewage?
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उत्तर
Flocs are masses of bacteria embedded in fungal filaments to form a mesh-like structure.
These flocs consume organic matter in wastewater and reduce the B.O.D. levels in the water. The flocs form a part of activated sludge, a small part of which is pumped back into aeration tank to help as inoculums.
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संबंधित प्रश्न
Explain the different steps involved during primary treatment phase of sewage.
Describe how do 'flocs' and 'activated sludge' help in Sewage Treatment.
Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called _______________.
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
Why do we prefer to call secondary waste water treatment as biological treatment?
Why is aerobic degradation more important than anaerobic degradation for the treatment of large volumes of waste waters rich in organic matter. Discuss.
Which one is wrongly matched?
Which of the following statement is correct for Sewage Treatment Plants (STPs)?
Explain the steps involved in preliminary treatment of sewage.
Removal of suspended, floating, coarse and solid particles in sewage treatment is called ______.
