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प्रश्न
Distinguish between the roles of flocs and anaerobic sludge digesters in sewage treatments.
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उत्तर
Flocs contain aerobic microbes that grow in aeration tank during secondary treatment of effluent and consume a major part of the organic matter of the effluent.
In anaerobic sludge digester, anaerobic type of bacteria grow and digest the rest of the organic compounds and produce a mixture of gases such as methane, hydrogen sulphide and carbon dioxide (biogas).
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संबंधित प्रश्न
Explain the different steps involved during primary treatment phase of sewage.
What is primary treatment of sewage?
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Small part of activated sludge is passed back into ______ and major part is pumped into large tanks called ______.
Identify the type of microorganisms involved in floe formation during sewage treatment.
Given below is the flowchart of sewage treatment. Identify A, B, C, D and E and select the correct option.
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)?
Explain the steps involved in preliminary treatment of sewage.
During primary sewage treatment, floating debris is separated by which physical process?
