Download AKTU B-Tech 6th Sem 2015-2016 NBT 602 Environmental Biotechnology Question Paper

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(Following Paper be filled in your Answer Books)

B.TECH.

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Theory Examination (Semester-VI) 2015-16

ENVIRONMENTAL BIOTECHNOLOGY

Section-A

Q.1 Attempt all parts. All parts carry equal marks. Write answer of each part in short. (2×10=20)

1. Define the term pollution and its types.
2. How do rotatory biological reactors work?

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3. What do you understand by the term Solid waste Management?
4. Define the term Biomarkers and Bio-indicators.
5. What the factors that affect the anaerobic process?
6. Define the term methanogenesis and activated sludge.

Section-B

Q2. Attempt any five parts. All parts carry equal marks: (5×10=50)

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1. What are the harmful effects of air and water pollution on ecosystem?
2. What are tickling filters? Describe them with the help of a suitable diagram and also write the formation of biofilms over trickle beds.
3. Name some important alternative fuels that are renewable sources of energy. Explain in brief.
4. What are steps involved in the primary treatment of waste water.
5. "Activated sludge process is an aerobic biological process in the treatment of waste water". Explain in detail with significant diagrams and the growth kinetics involved.

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6. Give details of thermal and biological conversion of solid waste.

Section-C

Note: Attempt any two questions from this section. (2×15=30)

1. Estimation of total volatile components and lignin in a given known sample.
2. What are kind waste arkahiteps towards management of solid waste? Also write about the bioreactors which help in this process.
3. How does the biological treatment process safe for the environment?

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