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

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

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प्रश्न

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

विकल्प

  • total organic matter

  • biodegradable organic matter

  • oxygen evolution

  • oxygen consumption

MCQ
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उत्तर

BOD of waste water is estimated by measuring the amount of oxygen consumption.

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अध्याय 10: Microbes in Human Welfare - MULTIPLE CHOICE QUESTIONS [पृष्ठ ७०]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 10 Microbes in Human Welfare
MULTIPLE CHOICE QUESTIONS | Q 7. | पृष्ठ ७०

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Explain the role of microbes in sewage treatment.


Explain the function of “anaerobic sludge digester” in a sewage treatment plant.


What is the key difference between primary and secondary sewage treatment?


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


Small part of activated sludge is passed back into primary sedimentation tank.

If the above statement is correct then rewrite as it is and in case it is incorrect then reframe it.


After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?


Which of the following occurs during tertiary treatment?


Into which of the following the sewage water is pumped after preliminary treatment?


Which of the following is TRUE regarding 'Flocs'?


What would happen if oxygen availability to activated sludge flocs is reduced?


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.


Ganga has recently been declared the national river. Discuss the implication with respect to pollution of this river.


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".

Which one is wrongly matched?


Which of the following statement is correct for Sewage Treatment Plants (STPs)?


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


What is the primary purpose of chlorination in the tertiary treatment of wastewater?


By what percentage does the decomposition of organic matter by aerobic bacteria in aeration tanks typically lower the BOD during secondary treatment?


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