Advertisements
Advertisements
Question
Answer the following question.
What are 'flocs', formed during secondary treatment of sewage?
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Explain the function of “anaerobic sludge digester” in a sewage treatment plant.
What is the key difference between primary and secondary sewage treatment?
Rearrange the names of tanks used in sewage treatment as per the flow of the procedure.
- Settling tank
- Grit Chamber
- Aeration tanks
- Primary sedimentation tank.
In which of the following microbial digestion of organic wastes of sewage takes place?
Which of the following occurs during tertiary treatment?
After which of the following treatment BOD of the effluent is significantly reduced?
Methanogenic bacteria are not found in ______.
Activated sludge should have the ability to settle quickly so that it can ______.
Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from ______.
Which of the following statement is correct for Sewage Treatment Plants (STPs)?
