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Municipal sewage BOD values (ppm) are...

Municipal sewage BOD values (ppm) are_

A

`1-5`

B

`100-4000`

C

`50-90`

D

`20-40`

Text Solution

Verified by Experts

The correct Answer is:
B
The BOD values of municipal sewage are 100-4000 ppm.
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What is BOD ?

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Knowledge Check

  • The amount of oxygen used by the suitable microorganisms present in water during five days at 20^(@)C is called as BOD. For pure water BOD is about 1 ppm fairly pure water 3 ppm and doubtful purity 5 ppm the municipal sewage has BOD values 100-4000 ppm. BOD= Number of moles of O_2 required / Number of liters of water sample The BOD value of municipal sewage is

    A
    1 ppm
    B
    5 ppm
    C
    5-10 ppm
    D
    100-4000 ppm

  • The amount of oxygen used by the suitable microorganisms present in water during five days at 20^(@)C is called as BOD. For pure water BOD is about 1 ppm fairly pure water 3 ppm and doubtful purity 5 ppm the municipal sewage has BOD values 100-4000 ppm. BOD= Number of moles of O_2 required / Number of liters of water sample If water is polluted its BOD value is

    A
    1 ppm
    B
    2 ppm
    C
    3 ppm
    D
    6 ppm

  • The amount of oxygen used by the suitable microorganisms present in water during five days at 20^(@)C is called as BOD. For pure water BOD is about 1 ppm fairly pure water 3 ppm and doubtful purity 5 ppm the municipal sewage has BOD values 100-4000 ppm. BOD= Number of moles of O_2 required / Number of liters of water sample BOD is normally cxpressed for a time period of

    A
    5 hours
    B
    5 minutes
    C
    5 days
    D
    5 seconds

    • Similar Questions

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    What is BOD?

    The amount of oxygen used by the suitable microorganisms present in water during five days at 20^(@)C is called as BOD. For pure water BOD is about 1 ppm fairly pure water 3 ppm and doubtful purity 5 ppm the municipal sewage has BOD values 100-4000 ppm. BOD= Number of moles of O_2 required / Number of liters of water sample The BOD values of three water sample x,y and z are 5 mg/litre, 16 mg/Litre and 400 mg/Litre respectively the more polluted sample of water is

    Limit of BOD prescribed by central pollution control board for the discharge of industrial and municipal waste waters into natural surface water, is

    Before disposal, sewage is treated in sewage treatment plants (STPs). It is done by which microbes present naturally in sewage

    Sewage water is purified by

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