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Secondary sewage treatment is mainly a...

Secondary sewage treatment is mainly a

A

Physical process

B

Mechanical process

C

Chemical process

D

Biological process

Text Solution

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The correct Answer is:
D
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Study the following statements and select the incorrect ones. (i) Physical removal of large and small particles through filtration and sedimentation is called primary sewage treatment. (ii) Secondary sewage treatment is mainly a mechanical process. (iii) Activated sludge sediment in a sewage treatment plant is a rich source of aeroic bacteria. (iv) Biogas, commonly called as gobar gas, is pure methane.

Study the following statements and select the incorrect ones (i) Physical removeal of large and small particles through filtration and sedimentation is called primary sewage treamtent. (ii) Secondry sewage treatment is mainly a mechanical process (iii) Activated sludge sediment is a sewage treatement plant is a rich soruce of aerobic bactria.

Sewage is mainly a

What are flocs used in secondary sewage treatment?

Secondary treatment of sewage

Which of the following statement about sewage treatment is false?

Assertion : Secondary treatement of sewage is also called biological treatment while primary treatment is called physical treatment. Reason : Primary sewae treatment depends only upon sedimentation properies of materials present in sewage and filtration.

Filtration and Sedimentation are the sewage treatment steps involved in

Secondary treatment or biological treatment of waste or sewage is done by the :-

MOTION-ECOLOGY-EXERCISE -3
  1. Of the total incident solar radiation the proportion of PAR is:

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  2. Which one of the following pairs of gases are the major cause of 'Gree...

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  3. Secondary sewage treatment is mainly a

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  4. Which of the following is mainly produced by the activity of anaerobic...

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  5. Which one of the following have the highest number of species in natur...

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  6. Large Woody vines are more commonly found in:

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  7. Nitrifying bacteria

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  8. Considered the following four conditions (A-D) and select the correct ...

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  9. Which one of the following statements is correct for secondary success...

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  10. Which one of the following is categorised as a parasite in true sense

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  11. Which one of the following statements for pyramid of energy is incorre...

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  12. Which one of the following statements is wrong

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  13. Which one of the following shows maximum genetic diversity in India ...

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  14. Both, hydrarch and xerarch successions lead to

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  15. Which one of the following animals may occupy more than one trophic le...

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  16. The breakdown of detritus into smaller particles by earthworm is a pro...

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  17. "Good ozone" is found in the

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  18. Consider the following statements (a-d) each with one or two blanks: ...

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  19. Biodiversity of a geographical region represents

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  20. Which one of the following statements regarding photochemical smog is ...

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