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Posted By: Sri Member Level: Gold Posted Date: 15 Dec 2007
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2006 Jawaharlal Nehru Technological University B.Tech III/Sem1 Regular Nov'06 Set 3,Environmental Biotechnology Question paper
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Code No: RR312305 Set No. 3
III B.Tech I Semester Regular Examinations, November 2006
ENVIRONMENTAL BIOTECHNOLOGY
(Bio-Technology)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. What are stabilization ponds? Explain the difference between aerobic and anaerobic
stabilization ponds. [4+12]
2. Explain the following: [8+8]
(a) Sludge drying and sludge conditioning
(b) Sludge lagooning.
3. Write a note on bioremediation of polluted sites. [16]
4. Write short notes on: [8+8]
(a) Land farming
(b) Composting.
5. What is microbial transformation of metals? Enumerate and describe the importance of micro organisms involved in it. [4+12]
6. Write short notes on any two: [8+8]
(a) Natural gas.
(b) Solar energy.
(c) Biogas .
7. Explain the importance of controlling pollutants? What are the advantages of using Bio-systems in this process? [8+8]
8. Explain the various biotechnological approaches of hazardous waste management?[16]
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