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Secondary sewage treatment is mainly a:...

Secondary sewage treatment is mainly a:

A

chemical process

B

biological process

C

physical process

D

mechanical process

Text Solution

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The correct Answer is:
B
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Explore conceptually related problems

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.

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

DISTINGUISH BETWEEN : Primary and secondary sewage treatment

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

Study the given differences between primary sludge and activated sludge and select the incorrect ones. Primary Sludge Activated sludge (i) It is sludge formed during primary sewage treatment. It is sludge formed during secondary sewage treatment. (ii) It possesses flocs of decomposer microbes. It does not possess flocs of decomposer microbes. (iii) It does not require aeration. Formation of activated sludge requires aeration. (iv) A lot of decomposition occurs during formation of primary sludge. Very little decomposition occurs during formation of activated sludge.

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

Guttation is mainly due to:

ARIHANT PRAKASHAN-MICROBES IN HUMAN WELFARE -Chapter Test
  1. Organisms called methanogens are most abundant in a

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

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  3. Secondary sewage treatment is mainly a:

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  4. Choose the correct option Which of the following products used in de...

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  5. Name the molecules which are used as blood cholesterol lowering agents...

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  6. Azospirillum and Azotobacter are ............. bacteria.

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  7. ........ are used as biocontrol agents to get rid of moquitoes.

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  8. Fill in the blanks Viable biogas is produced in large vessels calle...

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  9. Plants with mycorrhizal association show tolerance to ........... and ...

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  10. Baculoviruses belonging to the genus ,Penicillin are used as agents of...

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  11. Mycorrhizae provide cobalt to the roots of plants.

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  12. Bacillus thuringiensis is a Gram-negative bacteria.

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  13. correct the sentence if required Baculoviruses are single-stranded RNA...

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  14. Write short note on harmful effects of chemical pesticides.

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  15. Write short note on enzymes produced by microbes.

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  16. What is the role of biotechnology in manipulating nitrogen -fixing pro...

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  17. Differentiate between Biopesticides and biocontrol agents .

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  18. Differentiate between:Primary sludge and activated sludge

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  19. Give a detailed account of industrial application of microbes.

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  20. Write a detailed account of biogas production.

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