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Methanogenic bacteria are not found in...

Methanogenic bacteria are not found in

A

rumen of cattle

B

gobar gas plant

C

bottom of water-logged paddy fields

D

activated sludge

Text Solution

Verified by Experts

The correct Answer is:
D
Methanogenic bacteria (that produce methane) are not found in activated sludge. The microbes present in the activated sludge are aerobic bacteria that grown rapidly and form flocs. During secondary treatment of wastewater it is in the digestors where other kinds of bacteria which grow anerobically, digest the bacteria and the fungi in the sludge producing mixture of gases such as methane, hydrogen sulphide and `CO_(2)` which form the biogas.
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NCERT EXEMPLAR-MICROBES IN HUMAN WELFARE -Microbes In Human Welfare
  1. The vitamin whos content increases following the conversion of milk in...

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  2. Wastewater treatment generates a large quantity of sludge, which can b...

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  3. Methanogenic bacteria are not found in

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  4. Match the following list of bacteria and their commercially important ...

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  5. Match the following list of bioactive substances and their roles. {:...

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  6. The primary treatement of wastewater involves the removal of

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

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  8. Which one of the following alcoholic drinks is produced without distil...

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  9. The technology of biogas production from cow dung was developed in ind...

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  10. The free-living fungus Trichoderma can be used for

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  11. What would happen if oxygen availability to activated sludge flocs is ...

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  12. Mycorrhiza does nto help the host plant in

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  13. Which one of the following is not a nitrogen-fixing organism ?

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  14. Big holes in Swiss cheese are made by a

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  15. The residue left after methane production from cattle dung is

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  16. Mathanogens do not produce

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  17. Activated sludge should have the ability to settle quickly so that it ...

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  18. Match the items in column 'A' and column 'B' and choose correct answer...

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  19. Why does 'Swiss cheese' have big holes?

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  20. What are fermentors?

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