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Secondary sewage treatment is mainly a

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Important Questions on Microbes in Human Welfare

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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment

The below diagram represents a typical biogas plant. Select the correct option for A, B and C respectively?

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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
The high value of BOD (Biochemical Oxygen Demand) indicates that:
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
The technology of biogas production was developed in India due to the efforts of:
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
What is sewage? Write a note on the secondary or biological treatment of sewage. 
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Study the following statements and select the incorrect ones?
(i) Physical removal of large and small particles through filtration and sedimentation is called primary sewage treatment
(ii) Secondary sewage treatment is mainly a mechanical process
(iii) Activated sludge sediment in s sewage treatment plant is a rich source of aerobic bacteria
(iv) Biogas, commonly called as gobar gas, is pure methane
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Define bioreactor. 
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Biogas is the __________ source of energy.
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Bhuvan wants to manufacture protein food supplements in his industry by using sewage and industrial wastewater. Suggest the name of the microbe and the components of the wastewater that can be used in his industry.
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Sewage water can be purified by:
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Which of the following in sewage treatment removes suspended solids?
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Differentiate between the primary and secondary treatment of sewage. 
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
In sewage treatment, secondary treatment is considered highly significant, because
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
What is flocs?
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Which bacteria is commonly found in the anaerobic sludge during sewage treatment?
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
When students visited sewage treatment plants in their city, they observed large airtight tanks with huge pipelines to collect the released gases so as to generate electricity. As a student of Biology, explain the formation and composition of these gases in the tanks.
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
In STP the biological treatment is completed with the help of
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Give a brief account of septic tank systems in small scale sewage treatment processes. What is activated sludge?
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
What gases are produced in anaerobic sludge digesters?
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
The microorganisms involved in floc formation during sewage treatment are
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Sewage Treatment
Which of the following is put into Anaerobic sludge digester for further sewage treatment?