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प्रश्न
Activated sludge should have the ability to settle quickly so that it can ______.
पर्याय
be rapidly pumped back from sedimentation tank to aeration tank
absorb pathogenic bacteria present in waste water while sinking to the bottom of the settling tank
be discarded and anaerobically digested
absorb colloidal organic matter
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उत्तर
Activated sludge should have the ability to settle quickly so that it can be rapidly pumped back from sedimentation tank to aeration tank.
APPEARS IN
संबंधित प्रश्न
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.
Explain the function of “anaerobic sludge digester” in a sewage treatment plant.
What is primary treatment of sewage?
Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.
Why is this sewage water treatment essential?
Name the chamber in which the suspended objects are filtered and removed during sewage treatment?
Which of the following is TRUE about primary treatment?
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
In the process of biogas production which of the following anaerobic bacteria are used?
Into which of the following the sewage water is pumped after preliminary treatment?
Identify the INCORRECT statement with respect to sewage treatment.
Study the following statements regarding tertiary treatment of sewage and choose the correct option.
i. It produces methane gas.
ii. The effluents formed from these plants undergo chlorination.
iii. BOD is significantly increased at this step.
iv. It includes screening and passage of effluent through grit chamber.
Nitrogen fixation by organisms requires conditions that are:
Why is aerobic degradation more important than anaerobic degradation for the treatment of large volumes of waste waters rich in organic matter. Discuss.
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".
Given below is the flowchart of sewage treatment. Identify A, B, C, D and E and select the correct option.
Which one is wrongly matched?
The aeration tank of a sewage treatment plant is not functioning properly. Explain in detail the impact of this on the treatment of sewage and BOD of the effluent.
Explain the steps involved in preliminary treatment of sewage.
