Advertisements
Advertisements
प्रश्न
Why are flocs important in biological treatment of waste water?
उत्तर
Flocs are masses of bacteria associated with fungal filaments to form mesh-like structure. Flocs digest most of the organic material from the sludge. Thus, floc helps in reducing the BOD (Biochemical Oxygen Demand) of the effluent. This helps in the further treatment of sludge.
APPEARS IN
संबंधित प्रश्न
Explain the different steps involved during primary treatment phase of sewage.
Answer the following question.
What are 'flocs', formed during secondary treatment of sewage?
Name the chamber in which the suspended objects are filtered and removed during sewage treatment?
Which of the following is TRUE about primary treatment?
Small part of activated sludge is passed back into ______ and major part is pumped into large tanks called ______.
______ refers to the organic matter which settles down after physical treatment of sewage.
In a sewage treatment plant, all of the following processes belong to secondary treatment except:
The primary treatment of waste water involves the removal of ______.
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 ______.
