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प्रश्न
What is the group of bacteria found in both the rumen of cattle and shidge of sewage treatment?
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उत्तर
Methanogens are the group of bacteria found in both the rumen of cattle and sludge of sewage treatment.
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संबंधित प्रश्न
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?
Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called _______________.
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.
In which of the following microbial digestion of organic wastes of sewage takes place?
Due to which of the following reason/s sewage water cannot be discharged directly into river?
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?
Identify the type of microorganisms involved in floe formation during sewage treatment.
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
In the process of sewage treatment, the activated sludge is digested by ______
During sewage, treatment biogas is produced wits which include:
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.
What would happen if a large volume of untreated sewage is discharged into a 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".
