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

Why do we prefer to call secondary waste water treatment as biological treatment?

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प्रश्न

Why do we prefer to call secondary waste water treatment as biological treatment?

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उत्तर

The secondary treatment is also called biological treatment because in secondary treatment living organisms like bacteria and fungi are used.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 10: Microbes in Human Welfare - VERY SHORT ANSWER [पृष्ठ ७२]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 10 Microbes in Human Welfare
VERY SHORT ANSWER | Q 4. | पृष्ठ ७२

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संबंधित प्रश्न

Explain the different steps involved during primary treatment phase of sewage.


Distinguish between the roles of flocs and anaerobic sludge digesters in sewage treatments.


What is primary treatment of sewage?


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


One of the free-living anaerobic nitrogen-fixer is _________.


Name the chamber in which the suspended objects are filtered and removed during sewage 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.

In which of the following microbial digestion of organic wastes of sewage takes place?


Which of the following occurs during tertiary treatment?


Nitrogen fixation by organisms requires conditions that are:


In a sewage treatment plant, all of the following processes belong to secondary treatment except: 


In which of the following step large and small particles are removed from sewage through sequential filtration and sedimentation?


Wastewater treatment generates a large quantity of sludge, which can be treated by ______.


BOD of waste water is estimated by measuring the amount of ______.


Why are flocs important in biological treatment of waste water?


Study the given diagram of the Sewage Treatment  Plant (S.T.P.) and answer the question that follows:

  1. Which one of the two 'S.T.P.' (A) or (B) will be more effective in treating the human excreta in municipal waste?
  2. 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".

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.


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