M.Sc. (Semester III) Examination Nov/Dec-2018
Microbiology
ENVIRONMENT AND WASTE MANAGEMENT TECHNOLOGY
Time: 2½ Hours Max. Marks: 70
Instructions: All questions are compulsory.
Figure to right indicates full marks.
Draw neat labeled diagrams wherever necessary.
Q.1 Choose the correct alternative and rewrite the sentences again. 14
method is used for Industrial waste treatment by Genetically
engineered microorganisms.
Biofilm Biomethanation
Biofilter Oxidation ponds
Generally the pH of paper pulp industry wastewater is in the range of

8.0-8.5 2.2-3.2
4.0-5.0 10.0-10.5
In activated sludge process, the floc formation is enhanced by
Protein Carbohydrates
Metal ions Protein
method is used for BOD test.
Wrinklers‟s
Wrinklers‟ modification of Azides
Azides
Azides modification of Wrinklers‟s
In treatment process Zoogloea ramigera play important role in floc
formation.
Trickling filter Activated Sludge digestion
Oxidation ponds Anaerobic Sludge digestion
In anaerobic sludge digestion is the major gas released.
Hydrogen Methane
Oxygen Nitrogen
Strong chemical oxidizing agent is used in COD test.
Potassium perchlorate Potassium hydroxide
Potassium Dichromate Potassium chromate
Generally in water tracing techniques florescent dye is used.
Sudan Yellow Brilliant Green
C. Rhodamine Orange T
acid is present in acid rain water.
Sulphuric Nitric
Hydrochloric Phosphoric
10) Corn strep liquor is rich in component.
Pectin Hemicellulose
Cellulose Starch
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SLR-VW-40
11) BOD test measures decomposable
Organic matter
Inorganic as well as organic matter
Inorganic matter
Neither inorganic nor organic
12) is a waste material generated of Sugar factory.
Sulfite Molasses
Starch Confectionary
13) Paper and pulp industry generate as a waste.
Molasses Sulfite waste liquor
Corn strip liquor Spent wash
14) In industrial waste treatment, the flocculation process is used for
process.
Solid-Solid Liquid-gas
Liquid-Liquid Solid-Liquid
Q.2 Define and explain any four of the following. 08
BOD
Ecology
Eutrophication
Biomagnifications
TOC
Write short note on any two of the following. 06
Ecological pyramids
Food chains
Aquatic plants in Pollution control
Q.3 Answer any two of the following. 08
Explain in detail global warming and its effects.
Briefly describe water tracing.
Environmental Audit
Answer any one of the following. 06
Explain in detail Novel methods of pollution control.
Justify the statement "Eutrophication is indicator of water pollution".
Q.4 Answer any two of the following. 10
Briefly describe reactions and kinetics of waste water treatment
systems.
Describe briefly Characteristics distillery wastewater.
Comment on "biosphere is playing key role in Environment".
Answer any one of the following. 04
Briefly describe Bioremediation.
Explain Briefly „How Environmental audit is important to control
pollution‟.
Q.5 Answer any two of the following. 14
Explain in detail Characteristics and treatment of paper and pulp industry
wastewater.
What are critical operation parameters? How it is significant in treatment of
wastes?
Write in detail about waste disposal control and regulations.