Download AKTU B-Tech 8th Sem 2015-16 EBT 801 Environmental Biotechnology Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2015-16 EBT 801 Environmental Biotechnology Question Paper

Printed Pages: 4 EBT?801
(Following Paper ID and Roll No. to be ?lled in your
Answer Books)
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B.TECH.
Theory Examination (Semester?VIII) 2015-16
ENVIRONMENTAL BIOTECHNOLOGY
Time : 3 Hours Max. Marks : 100
Section-A
1. Attempt all sections. All sections carry equal marks.
Write answer of each section in short. (10X2 = 20?)
(a) De?ne the term pollution and gives its various types.
(b) Write the use of ba?les, impellers and spargers in
bioreactors.
(c) How is packed bed reactor different from UASB
reactor?
(d) Name the different available sources of biomass for
the fuel conversion.
(e) What are ?uidized bed reactors? Write in brief.
(1) P.T.O.
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(0
(g)
(h)
(i)
G)
How can you classify waste on the basis of degrada-
tion capability?
Name few important microorganisms which are used
in the waste treatment processes.
What does activated sludge and bio?lm mean?
What do you understand by the term detection time
and sparging time?
What are the general characteristics of waste water?
Section-B
Attempt any ?ve questions from this section.
(a)
(b)
(C)
(5x10 = 50)
What is environmental biotechnology and state its
role in pollution management?
Describe trickling ?lters with its key role in biologi-
cal treatment.
"Bioremediation means giving nature a helping hand".
Justify the statement with your views.
(2)
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(d)
(e)
(f)
(g)
(h)
(a)
Differentiate between aerobic and anaerobic treatment
pl?OCCSS.
Explain the term recirculation. How can it improve the
efficiency of the biological process?
Illustrate the various steps involved in the treatment of
sewage and industrial water.
What are the different growth kinetic phases of microor-
ganisms in an ASP?
What are rotatory biological contactors? What are its
merits and demerits over its use in an industrial waste
water treatment process?
Section-C
Attempt any two questions from this section. (2X 15 = 30)
What is an Activated sludge process (ASP)?
Explain with diagrams and growth kinetics
parameters associated with the process.
(b) Write the modi?cations of ASP that dealt to
increase the process e?iciency.
(3) P.T.O.
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4. How can you convert the degradable organic waste into uti-
lizable products? Give the ' various methods involved in the
conversion and examples of such products.
5. "Methanogenesis is an anaerobic process". Wn'te points in favor
of this statement. Also write about the reactors involved in the
biogas production.
(4)
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