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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

In what way anaerobic sludge digestion is important in sewage treatments?

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प्रश्न

In what way anaerobic sludge digestion is important in sewage treatments?

दीर्घउत्तर
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उत्तर

In anaerobic sludge digestion, anaerobic bacteria, digest the aerobic bacteria and the fungi in the sludge and the remaining organic matter. During this digestion, bacteria produce a mixture of gases such as methane, hydrogen sulphide and carbon dioxide. These gases (biogas) can be used as a source of energy as it is inflammable.

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पाठ 10: Microbes in Human Welfare - LONG ANSWER [पृष्ठ ७४]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
पाठ 10 Microbes in Human Welfare
LONG ANSWER | Q 5.(b) | पृष्ठ ७४

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संबंधित प्रश्‍न

Describe how do 'flocs' and 'activated sludge' help in Sewage Treatment.


Answer the following question.
What are ‘flocs’, formed during secondary treatment of sewage?


Why is this sewage water treatment essential?


Name the tank to which the sewage water is passed after the preliminary treatment?


Rearrange the names of tanks used in sewage treatment as per the flow of the procedure.

  1. Settling tank
  2. Grit Chamber
  3. Aeration tanks 
  4. Primary sedimentation tank.

Which of the following occurs during tertiary treatment?


In the process of biogas production which of the following anaerobic bacteria are used?


Which of the following process is a part of preliminary treatment of sewage?


Which of the following is TRUE regarding 'Flocs'?


In the process of sewage treatment, the activated sludge is digested by ______


Methanogenic bacteria are not found in ______.


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 ______.


Why is aerobic degradation more important than anaerobic degradation for the treatment of large volumes of waste waters rich in organic matter. Discuss.


What would happen if a large volume of untreated sewage is discharged into a river?


Given below is the flowchart of sewage treatment. Identify A, B, C, D and E and select the correct option.


What are 'flocs' in the context of biological wastewater treatment?


What happens to the polluting potential of wastewater as its Biochemical Oxygen Demand (BOD) increases?


Which mixture of gases is collectively produced as biogas during anaerobic sludge digestion?


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