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प्रश्न
What is primary treatment of sewage?
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उत्तर
Filtration and sedimentation [Physical process] to remove floating debris and heavy particles respectively are primary treatment of sewage.
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संबंधित प्रश्न
Explain the process of sewage water treatment before it can be discharged into natural water bodies.
One of the free-living anaerobic nitrogen-fixer is _________.
Why is this sewage water treatment essential?
Small part of activated sludge is passed back into primary sedimentation tank.
If the above statement is correct then rewrite as it is and in case it is incorrect then reframe it.
Due to which of the following reason/s sewage water cannot be discharged directly into river?
In the process of biogas production which of the following anaerobic bacteria are used?
Which of the following occurs during secondary treatment?
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
Study the following statements regarding tertiary treatment of sewage and choose the correct option.
i. It produces methane gas.
ii. The effluents formed from these plants undergo chlorination.
iii. BOD is significantly increased at this step.
iv. It includes screening and passage of effluent through grit chamber.
BOD of waste water is estimated by measuring the amount of ______.
