Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 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 2018
Subject Code: 2181308 Date: 15/11/2018
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) Define the terms :(i) Permeate (ii) Reject (iii) Flux 03
(b) Explain the principle involved in ion exchange process with neat sketch. 04
(c) Draw a neat labeled diagram of MBR & explain the functions of following
components of MBR
(a) Backpulse pump
(b) Membrane air scour blowers
(c) Permeate pump
(d) Recirculation pump
07
Q.2 (a) Define the terms: adsorption, adsorbate and adsorbent. 03
(b) Write the applications of advanced wastewater treatment for water treatment. 04
(c) What is hardness. Explain the zeolite process for removal of hardness. 07
OR
(c) Prepare list of advantages and disadvantages of Ultrafiltration and Reverse
osmosis.
07
Q.3 (a) Write down the application of Activated carbon treatment process. 03
(b) Explain the mechanism of adsorption with neat sketch. 04
(c) Explain the Langmuir and Frendluich isotherm along with assumptions. 07
OR
Q.3 (a) Give a list of photochemical process of advanced oxidation process. Explain any
one.
03
(b) Write a note on advanced oxidation process carried out using Ozone and
Hydrogen peroxide.
04
(c) Explain Fenton process in detail. 07
Q.4 (a) Enlist the methods for chemical precipitation of phosphorous. Explain any one
method with equation.
03
(b) Explain different forms of phosphorous, along with their sources, which occur in
environment.
04
(c) Write a note biological process for Nitrogen removal. 07
OR
Q.4 (a) Highlight and explain the advantages of Membrane bio-reactor in wastewater
treatment.
03
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Page 1 of 2
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2181308 Date: 15/11/2018
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) Define the terms :(i) Permeate (ii) Reject (iii) Flux 03
(b) Explain the principle involved in ion exchange process with neat sketch. 04
(c) Draw a neat labeled diagram of MBR & explain the functions of following
components of MBR
(a) Backpulse pump
(b) Membrane air scour blowers
(c) Permeate pump
(d) Recirculation pump
07
Q.2 (a) Define the terms: adsorption, adsorbate and adsorbent. 03
(b) Write the applications of advanced wastewater treatment for water treatment. 04
(c) What is hardness. Explain the zeolite process for removal of hardness. 07
OR
(c) Prepare list of advantages and disadvantages of Ultrafiltration and Reverse
osmosis.
07
Q.3 (a) Write down the application of Activated carbon treatment process. 03
(b) Explain the mechanism of adsorption with neat sketch. 04
(c) Explain the Langmuir and Frendluich isotherm along with assumptions. 07
OR
Q.3 (a) Give a list of photochemical process of advanced oxidation process. Explain any
one.
03
(b) Write a note on advanced oxidation process carried out using Ozone and
Hydrogen peroxide.
04
(c) Explain Fenton process in detail. 07
Q.4 (a) Enlist the methods for chemical precipitation of phosphorous. Explain any one
method with equation.
03
(b) Explain different forms of phosphorous, along with their sources, which occur in
environment.
04
(c) Write a note biological process for Nitrogen removal. 07
OR
Q.4 (a) Highlight and explain the advantages of Membrane bio-reactor in wastewater
treatment.
03
Page 2 of 2
(b) Enlist the sources of nitrogen in wastewater. Mention the forms in which nitrogen
occur.
04
(c) Write a note on ?air stripping? as chemical process for nitrogen removal from
wastewater with neat sketch.
07
Q.5 (a) Differentiate between cross flow and dead end filtration process configuration. 03
(b) Draw figure of two different configuration of Membrane bioreactor. 04
(c) Highlight and explain the application of membrane technologies in wastewater
treatment.
07
OR
Q.5 (a) Enlist the operating parameters to be maintained during electro-coagulation and
explain any one parameter.
03
(b) Give difference between electro-coagulation and chemical coagulation. 04
(c) The following laboratory data were collected in batch adsorption study. Plot the
data according to Langmuir isotherm and determine the values of constants a and
b. A volume of 500 ml is placed in each flask and wastewater has initial COD is
100 mg/L.
Flask No. Mass of carbon (mg) Final COD in mg/L
1 960 3.5
2 740 5.2
3 545 8.0
4 385 12.5
5 260 20.5
6 170 33
7 0 100
07
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This post was last modified on 20 February 2020