Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2181308 Advanced Wastewater Treatment Technologies Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2181308 Date: 21/11/2019
Subject Name: Advanced Wastewater Treatment Technologies
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Explain application of Microfiltration and Reverse osmosis. 03
(b) Highlight the need of advanced wastewater treatment technologies in
environmental engineering field.
04
(c) What is membrane fouling? Explain different fouling phenomenon with
sketches.
07
Q.2 (a) Define (i) flux (ii) transmembrane pressure (iii) product water 03
(b) Write a short note on membrane material. 04
(c) Compare spiral wound membrane and tube membrane 07
OR
(c) Compare Hollow fiber and plate & frame membrane. 07
Q.3 (a) Explain types of membrane Bioreactor with figure. 03
(b) Enlist benefits and limitations of MBR. 04
(c) Explain the microbiology involved in biological process of phosphorous
removal.
07
OR
Q.3 (a) Explain micro-porous membrane and thin composite membrane. 03
(b) Explain Nitrification along with chemical reaction. 04
(c) Enlist chemical methods of phosphorous removal and explain any one method
with equations and the process configurations.
07
Q.4 (a) Enlist three different types of electro-oxidation mechanism and explain any
one in brief.
03
(b) Write a note on electro-flotation technique of removing sediments. 04
(c) Explain the Fenton?s process for wastewater treatment along with equations. . 07
OR
Q.4 (a) Differentiate between electro-coagulation and chemical coagulation. (give at
least 3 points)
03
(b) Enlist advanced oxidation processes in which ozone is used. Explain any one
with equations.
04
(c) Highlight applications of ion exchange in wastewater treatment. 07
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2181308 Date: 21/11/2019
Subject Name: Advanced Wastewater Treatment Technologies
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Explain application of Microfiltration and Reverse osmosis. 03
(b) Highlight the need of advanced wastewater treatment technologies in
environmental engineering field.
04
(c) What is membrane fouling? Explain different fouling phenomenon with
sketches.
07
Q.2 (a) Define (i) flux (ii) transmembrane pressure (iii) product water 03
(b) Write a short note on membrane material. 04
(c) Compare spiral wound membrane and tube membrane 07
OR
(c) Compare Hollow fiber and plate & frame membrane. 07
Q.3 (a) Explain types of membrane Bioreactor with figure. 03
(b) Enlist benefits and limitations of MBR. 04
(c) Explain the microbiology involved in biological process of phosphorous
removal.
07
OR
Q.3 (a) Explain micro-porous membrane and thin composite membrane. 03
(b) Explain Nitrification along with chemical reaction. 04
(c) Enlist chemical methods of phosphorous removal and explain any one method
with equations and the process configurations.
07
Q.4 (a) Enlist three different types of electro-oxidation mechanism and explain any
one in brief.
03
(b) Write a note on electro-flotation technique of removing sediments. 04
(c) Explain the Fenton?s process for wastewater treatment along with equations. . 07
OR
Q.4 (a) Differentiate between electro-coagulation and chemical coagulation. (give at
least 3 points)
03
(b) Enlist advanced oxidation processes in which ozone is used. Explain any one
with equations.
04
(c) Highlight applications of ion exchange in wastewater treatment. 07
Q.5 (a) Enlist photochemical advanced oxidation processes. Explain any one in brief. 03
(b) Explain modes of operation of MBR. 04
(c)
An adsorption study is set up in laboratory by adding a known amount of activated
carbon to six flasks which contain 200 mL of an industrial waste. An additional flask
containing 200 mL of waste but no carbon is run as a blank. Plot the Langmuir
isotherm and determine the values of the constants.
Carbon
dose, mg
804 668 512 393 313 238 0
Residual
Conc, mg/L
4.7 7.0 9.31 16.6 12.2 62.8 250
07
OR
Q.5 (a) Define: (i) adsorption, (ii) adsorbent and (iii) adsorbate. 03
(b) Explain the treatment process of wastewater with powdered activated carbon. 04
(c) Explain Membrane cleaning mechanisms. 07
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This post was last modified on 20 February 2020