Pune University BE Petrochemical Engineering Environmental Engineering Question Papers

B.E. (Petrochemical Engineering) ENVIRONMENTAL ENGINEERING (2008 Course) (Sem. – I)

Time :3 Hours]                                                                                              [Max. Marks :100

Instructions to the candidates:

1)            Answer any 3 questions from each section.

2)            Answers to the two sections should be written in separate books.

3)            Neat diagrams must be drawn wherever necessary.

4)            Pigures to the right indicate full marks.

5)             Use of electronic pocket calculator is allowed.

6)            Assume suitable data, if necessary.


QI) a) What is Biomedical waste? How it should be treated?                                                                                                                                                                                                          [8]

b) Describe the structural and functional components of Ecosystem.                                                                                                                                                                                 [8]


Q2) a) Explain the natural and manmade impacts on water?                                                                                                                                                                                                           [8]

b) Explain the natural and manmade impacts on land        [8]

Q3) a) With the help of flow diagram, explain working of scrubber for SO2 removal.                                                                                                                                                                       [8]

b)               Why flare is required for organic vapor emissions? Explain the working of flare.                                                                                                                                      [8]


Q4) a) Discuss at least three basic mechanisms with principle, working, advantages and disadvantages for removing particulate matter from gas streams.                                                                  [8]

b) What are the air pollution control laws of vehicular pollution?            [8]

Q5) a) What are the wastes generated from Paper and pulp industries? How are these waste treated?                                                                                                                                                  [R]

b)  Discuss the Meteorological aspects of air pollution.                                                                                                                                                                                                                                                                              [8]


c)             A conventional cyclone with diameter 1.5 m handles 8 m3/s of standard air carrying particles with a density of2000 kg/m3. For effective number of turns (Ne) = 9. Determine the cut size. What will be the cut size for a high efficiency cyclone? Take viscosity of gas (^g) as 2.81*105 kg/ (m.s.). Neglect density of the gas.                                                                                                [6]


Q6) Write a short note on following (Any 4) :                                                                                                                                                                                                                          [18]

a)             CDM.

b)             Kyoto Protocol.

c)             Plume Behavior.

d)             COD/BOD ratio.

e)             Green House effect.

f)             Ventury Scrubber.


Q7) a) What are various types of water pollutants and their effects?                                                                                                                                                                                                       [6]

b)             Why the discharge limits differ for waste being disposed to land, river and water?                                                                                                                            [6]

c)             What is Chemical Oxygen demand? Can we determine tentative BOD of wastewater if its COD is known? How?                                                                               [4]


Q8) a) Name at least five physical and chemical waste water characteristics.[6]

b)             Discuss the different sources of wastewater from domestic and industrial sources?                                                                                                                             [6]

c)             Discuss the different water pollution laws and standards which protect water from pollution.                                                                                                             [4]

Q9) a) Explain working of any one low cost waste water treatment method. [8]

b)             Discuss principle, construction, working, advantages and disadvantages of trickling filter with neat sketch.                                                                                                [8]


QIO) a) Discuss the methods of removal of dissolved solids.                                                                                                                                                                                                              [8]

b)             Explain the various methods for removal of suspended solids. [8]

QII) a) Discuss the sources and method of treatment for fertilizer with neat sketch.


b)            Discuss the sources and treatment method for steel plant industry waste water with neat sketch.                                                                                                                  [W]


Q12) Write a short note on (Any four) :                                                                                                                                                                                                                                            [18]

a)            OSHA.

b)            Importance of regulations for hazardous waste.

c)            Paper 8 Pulp mill waste treatment.

d)            Sanitary land filling operations.

e)            ISO 14000.

f)             Role of MPCB 8 CPCB.


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