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प्रश्न
What is sewage?
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उत्तर
Sewage is a collective term for municipal wastewater, which includes both liquid and solid wastes produced in cities and towns and transported via sewers. Chemically, sewage consists of approximately 99% water and 1% solid waste, which may be organic or inorganic in nature. Sewage typically contains bacteria (e.g., coliforms, streptococci, clostridia, lactobacilli), microfungi, protozoa and microalgae.
संबंधित प्रश्न
Explain the role of microbes in sewage treatment.
Explain the different steps involved during primary treatment phase of sewage.
Distinguish between the roles of flocs and anaerobic sludge digesters in sewage treatments.
Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called _______________.
One of the free-living anaerobic nitrogen-fixer is _________.
Why is this sewage water treatment essential?
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.
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 ______
Methanogenic bacteria are not found in ______.
Wastewater treatment generates a large quantity of sludge, which can be treated by ______.
Why do we prefer to call secondary waste water treatment as biological treatment?
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?
In what way anaerobic sludge digestion is important in sewage treatments?
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.
