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

What is the group of bacteria found in both the rumen of cattle and shidge of sewage treatment? - Biology

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प्रश्न

What is the group of bacteria found in both the rumen of cattle and shidge of sewage treatment?

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उत्तर

Methanogens are the group of bacteria found in both the rumen of cattle and sludge of sewage treatment.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Microbes in Human Welfare - VERY SHORT ANSWER [पृष्ठ ७३]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 12
पाठ 10 Microbes in Human Welfare
VERY SHORT ANSWER | Q 19. | पृष्ठ ७३

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Explain the role of microbes in sewage treatment.


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?


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


What are flocs with respect to sewage 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?


Small part of activated sludge is passed back into ______ and major part is pumped into large tanks called ______.


Identify the type of microorganisms involved in floe formation during sewage treatment.


What happens during the course of sewage decomposition?


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 ______.


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".

Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from ______.


After a significant reduction in the BOD of wastewater, it is passed into a settling tank where bacterial flocs are allowed to sediment. This sediment is called ______.


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


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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