Download SGBAU B-Tech 6th Sem Chemical Engineering Water Technology Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 6th Sem Chemical Engineering Water Technology Previous Question Paper

B.Tech. Sixth Semester (Chemical Engineering) (CGS)
10168 : Free Elective-II : Water Technology : 6 FECH 05
AW - 3251 1 P.T.O
Timez'l'hrecHours .ngo. Max.Marks:80
Notes : 1. Answer three question from Section A and three question {mm Section B.
2. Due credit will be given to neatness and adequate dimensions.
3. Assume suitable data wherever necessary.
4. Diagrams and chemical equations should be given wherever necessary.
5. Illustrate your answer necessary with the help of neat sketches.
6. Discuss the reaction, mechanism wherever necessary.
7. Use of pen Blue/Black ink/re?ll only for writing the answer book.
SECTION - A
l a) Describe the general el?uent treatment scheme with ?ow chart. 8
b) Discuss the limitations of Conventional wastewater treatments. 6
OR
2 a) How the particulate matter is removed from water? Explain the sand ?ltration. 10
b) Explain the theory of ?occulation. 4
3 a) What is reverse osmosis? Explain its salient Fedtm'es. 6
b) What are the different methods of removal of iron from wastewater? Explain in each brief. 7
0R
4. Discuss about the following reactors. 13
i) Trickling ?lter.
ii) Rotating Disc ?xed ?lm biological reactor.
5 a) Why is it necessary to have nutrient control in ef?uents? Explain. ?7
b) What are the various physical and chemical methods for removal of nitrogen from 6
wastewater? Explain in brief.
0R
6. Discuss the imponanoe of activated sludge process in biological treatment of wastewater. 13
V SECTION - B
7 a) What are the novel methods of aeration? 6

b)
8 a)
b)
9 a)
b)
10. a)
b)
1].
12. a)
b)
What are the different methods of removal of heaxy metals from wastewater? Explain each
in short.
OR
Explain the use and operation of rotating Geological C ontactor in wastewater treatment.
How is centrifugation carried out? Explain its applications with suitable examples.
What are the various desired properties of disinfectants in wastewater treatment?
Discuss about the following points:
i) Chlorination chemistry.
ii) Chlorination by products.
OR
How can you remove pesticides by activated carbon ?lters?
Explain in detail Reverse Osmosis.
Give the details of the following ?ltration methods for high quality ef?uents.
i) Gravity ?lters ii) Rapid sand ?lters
iii) Pressure ?lters iv) Vacuum ?lters
OR
How biosolids are treated?? Explain in details with suitable example.
Explain the phenomena of soil conditionity and fertilizing with suitable example.
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