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प्रश्न
The primary treatment of waste water involves the removal of ______.
विकल्प
dissolved impurities
stable particles
toxic substances
harmful bacteria
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उत्तर
The primary treatment of waste water involves the removal of stable particles.
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संबंधित प्रश्न
Explain the role of microbes in sewage treatment.
What is sewage?
Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C; but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20 mg/L, 8 mg/L and 400 mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each, assuming the river water is relatively clean?
What is primary treatment of sewage?
One of the free-living anaerobic nitrogen-fixer is _________.
Why is this sewage water treatment essential?
Which of the following is TRUE about primary treatment?
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
In the process of biogas production which of the following anaerobic bacteria are used?
Which of the following occurs during secondary treatment?
Into which of the following the sewage water is pumped after preliminary treatment?
What happens during the course of sewage decomposition?
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.
During sewage, treatment biogas is produced wits which include:
Activated sludge should have the ability to settle quickly so that it can ______.
Name the states involved in Ganga action plan.
What is the group of bacteria found in both the rumen of cattle and shidge of sewage treatment?
After a significant reduction in the BOD of wastewater, it is passed into a settling tank where bacterial flocs are allowed to sediment. This sediment is called ______.
Which of the following statement is correct for Sewage Treatment Plants (STPs)?
