Home
Class 12
BIOLOGY
Treatment of waste-water is done by the...

Treatment of waste-water is done by the

A

Photoautotrophic microbes, naturally present in sewage

B

Chemoautotrophic microbes, naturally present in sewage

C

Heterotrophic microbes naturally present in sewage

D

Heterotrophic microbes inoculated in the sewage from outside only

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • MICROBES IN HUMAN WELFARE

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - B)|35 Videos
  • MICROBES IN HUMAN WELFARE

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - C)|58 Videos
  • MICROBES IN HUMAN WELFARE

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|20 Videos
  • LOCOMOTION AND MOVEMENT

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION-D|10 Videos
  • MINERAL NUTRITION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION D)|10 Videos

Similar Questions

Explore conceptually related problems

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

The primary treatment of waste water in- volves the removal of

The purpose of biological treatment of waste water is to

Primary treatment of waste water is mainly a_______ treatment.

a. Bacteria are used in preparing idli, dosa and curdling of milk. b. Yeast is used in making only distilled alcoholic beverages. c.In biological treatment of waste water only aerobic bacteria are used. The number of correct and incorrect statements are 1) 3,0 2)1, 2 3)2, 1 4)0, 3

Chlorination of water is done

In the treatment of waste water before discharge which treatment stage inovolve biological treatment ?

Explain the three steps involved in the treatment of municipal waste water in effluent treatment plant prior to its disposal.

The greater BOD of waste water

During the treatment of sewage water, the chemical process is carried out in which step of water treatment?

AAKASH INSTITUTE ENGLISH-MICROBES IN HUMAN WELFARE-Assignment (SECTION - A)
  1. are used in detergent formulations and are helpful in removing oily st...

    Text Solution

    |

  2. Select the microbe which is the source of 'clot buster' enzyme.

    Text Solution

    |

  3. An immunosuppressive agent used in organtransplant patients is 1)Stre...

    Text Solution

    |

  4. Monascus purpureus is a yeast commerically used in the production of

    Text Solution

    |

  5. are produced by yeast and act by competitively inhibiting the enzyme r...

    Text Solution

    |

  6. Treatment of waste-water is done by the

    Text Solution

    |

  7. In a sewage treatment plant, primary treatment is

    Text Solution

    |

  8. During the primary treatment of sewage, solid paricles that settle dow...

    Text Solution

    |

  9. What are 'flocs', formed during secondary treatment of sewage ? OR ...

    Text Solution

    |

  10. Identify the stage of sewage treatment shown below.

    Text Solution

    |

  11. What happens to activated sludge?

    Text Solution

    |

  12. What is the composition of the biogas?

    Text Solution

    |

  13. Identify the parts labelled A, B & C w.r.t., biogas plant

    Text Solution

    |

  14. The bacterium responsible for biogas production are collectively calle...

    Text Solution

    |

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

    Text Solution

    |

  16. The ladybird beetle and dragonflies are useful to get rid of and res...

    Text Solution

    |

  17. The effective biocontrol agents of serveral plant pathogens are specie...

    Text Solution

    |

  18. Biofertilisers

    Text Solution

    |

  19. The main sources of biofertilisers are (a) Bacteria (b) Cyanobact...

    Text Solution

    |

  20. Fill in the blanks (a) beetle with red and black markings is useful...

    Text Solution

    |