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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 4,Environmental Biotechnology Question paper
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Code No: RR312305 Set No. 4
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. Write short notes on (any two): [8+8]
(a) Sloughing of filter.
(b) Sludge thickening and drying.
(c) Under drainage system of filters.
3. How is bioremediation helpful in cleanup of oil spills? [16]
4. Write short notes on: [8+8]
(a) Land farming
(b) Composting.
5. What are the microbial strains used in bio leaching of metal extraction? Explain their mode of action? [8+8]
6. What are Bio-fuels? How these are produced? Explain with examples. [3+8+5]
7. Compare how different toxic compounds can be degraded using different strains of microbes. [16]
8. Write various examples of biotechnological applications of waste management?[16]
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