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प्रश्न
What are flocs with respect to sewage treatment?
What are flocs?
उत्तर
Flocs are the masses of bacteria held together by slime and fungal hyphae to form mesh like masses.
संबंधित प्रश्न
Explain the role of microbes in sewage treatment.
What is sewage? In which way can sewage be harmful to us?
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 20mg/L, 8mg/L and 400mg/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?
One of the free-living anaerobic nitrogen-fixer is _________.
Name the chamber in which the suspended objects are filtered and removed during sewage treatment?
Due to which of the following reason/s sewage water cannot be discharged directly into river?
Which of the following is TRUE about primary treatment?
Which of the following occurs during tertiary treatment?
In the process of biogas production which of the following anaerobic bacteria are used?
Identify the type of microorganisms involved in floe formation during sewage treatment.
Identify the INCORRECT statement with respect to sewage treatment.
What happens during the course of sewage decomposition?
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
Which of the following is put into Anaerobic sludge disaster for further sewage treatment?
In which of the following step large and small particles are removed from sewage through sequential filtration and sedimentation?
The primary treatment of waste water involves the removal of ______.
Ganga has recently been declared the national river. Discuss the implication with respect to pollution of this river.
Study the given diagram of the Sewage Treatment Plant (S.T.P.) and answer the question that follows:
- Which one of the two 'S.T.P.' (A) or (B) will be more effective in treating the human excreta in municipal waste?
- Write the steps followed in carrying the treatment of the sewage in step (Z), once the BOD of sewage is reduced significantly till it is passed on to the "anaerobic sludge digesters".
Given below is the flowchart of sewage treatment. Identify A, B, C, D and E and select the correct option.
