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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 associated with fungal filaments and they are helpful in increasing the decomposition rate and they are put in the aeration tank while secondary sewage treatment is in process.
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संबंधित प्रश्न
Explain the role of microbes in sewage treatment.
Answer the following question.
What are 'flocs', formed during secondary treatment of sewage?
Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.
Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called _______________.
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
Methanogenic bacteria are not found in ______.
Why are flocs important in biological treatment of waste water?
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".
Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from ______.
