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प्रश्न
Explain the function of “anaerobic sludge digester” in a sewage treatment plant.
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उत्तर
An anaerobic sludge digester is a large tank where the anaerobic bacteria digest the bacteria and fungi in the sludge and produce a mixture of gases such as methane, H2S and CO2.
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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?
What is primary treatment of sewage?
Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.
Which of the following is/are found in discharge from industrial waste?
Which of the following is TRUE regarding 'Flocs'?
In the process of sewage treatment, the activated sludge is digested by ______
The primary treatment of waste water involves the removal of ______.
Why is aerobic degradation more important than anaerobic degradation for the treatment of large volumes of waste waters rich in organic matter. Discuss.
Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from ______.
Which of the following statement is correct for Sewage Treatment Plants (STPs)?
