Thapar University 2006 B.Tech Biotechnology Environmental - Question Paper
Thapar Institute of Engineering & Technology
B.Tech Biotechnology (4th Year)
Final Term exam
BT019(Environmental Biotechnology) Thapar Institute of Engineering and Technology: Patiala (3>
End Semester Examination B.Tech. Bioechnology (BT019) Environmental Biotechnology
Thapar Institute of Engineering and Technology: Patiala (3>15.12.06 Time: 3hour Max. Marks: 36
Attempt any five questions. All parts of a question are to be attempted in continuation AH questions carry equal marks._
1. What are surfactants? Discuss their types and degradation mechanisms. 7.2
2. i Describe vermicomposting. 3.1x2
ii What are the factors that effect composting process?
3. Describe primary and secondary waste water treatment system with an example. 7.2
4. Discuss Aerobic and Anaerobic biotransformation mechanisms of Polycyclic 7.2 Aromatic Hydrocarbons (PAHs).
5. What are the parameters used for assessment of quality of industrial waste water 7.2 explain with examples.
6. Distinguish between the following (Any two) 3.1x2
i. Physical and Biological treatment process
ii. Phytovolatilization and phytoextraction
iii Biostimulation and Bioaugmentation
7. i. Define Biogeochemical cycle? What is the significance of each step involved in 4 nitrogen cycle?
ii Explain the basis of different types of Trophic pyramids. 2
iii How does the shape of the energy pyramid reflect the 10% rule? 1.2
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