Advertisements
Advertisements
प्रश्न
What would happen if oxygen availability to activated sludge flocs is reduced?
पर्याय
It will slow down the rate of degradation of organic matter.
The center of flocs will become anoxic, which would cause death of bacteria and eventually breakage of flocs.
Flocs would increase in size as anaerobic bacteria would grow around flocs.
Protozoa would grow in large numbers.
Advertisements
उत्तर
The center of flocs will become anoxic, which would cause death of bacteria and eventually breakage of flocs.
APPEARS IN
संबंधित प्रश्न
Explain the role of microbes in sewage treatment.
Explain the process of secondary treatment given to the primary effluent up to the point it shows significant change in the level of biological oxygen demand (BOD) it.
Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C; but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20 mg/L, 8 mg/L and 400 mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each, assuming the river water is relatively clean?
Answer the following question.
What are ‘flocs’, formed during secondary treatment of sewage?
What are flocs with respect to sewage treatment?
Into which of the following the sewage water is pumped after preliminary treatment?
Identify the INCORRECT statement with respect to sewage treatment.
After which of the following treatment BOD of the effluent is significantly reduced?
Which of the following process is a part of preliminary treatment of sewage?
Which of the following is TRUE regarding 'Flocs'?
During sewage, treatment biogas is produced wits which include:
Why do we prefer to call secondary waste water treatment as biological treatment?
Name the states involved in Ganga action plan.
Why are flocs important in biological treatment of waste water?
Discuss about the major programs that the Ministry of Environment and Forests, Government of India, has initiated for saving major Indian rivers from pollution.
In what way anaerobic sludge digestion is important in sewage treatments?
Which one is wrongly matched?
Which of the following statement is correct for Sewage Treatment Plants (STPs)?
