GTU B.Tech 2020 Winter Question Papers || Gujarat Technological University
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Seat No.:
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Subject Code:2181308
Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VIII (NEW) EXAMINATION — WINTER 2020
Subject Name:Advanced Wastewater Treatment Technologies
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Time:02:00 PM TO 04:00 PM
Date:19/01/2021
Total Marks: 56
Instructions:
- Attempt any FOUR questions out of EIGHT questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| MARKS | ||
|---|---|---|
| Q.1 | (a) Define: Advanced wastewater treatment | 03 |
| (b) Describe types of Ion exchange resin | 04 | |
| (c) Discuss the factors that are to be taken into consideration while selecting advanced wastewater treatment | 07 | |
| Q.2 | (a) Define: Adsorption, adsorbate, adsorbent | 03 |
| (b) Enlist the various terminologies used for membrane filtration | 04 | |
| (c) Discuss with the neat sketch biological phosphorous removal | 07 | |
| Q.3 | (a) What do you mean by the term advanced oxidation | 03 |
| (b) With the help of a neat sketch show membrane bioreactor (MBR) configuration | 04 | |
| (c) Prepare a table showing general characteristics of membrane processes | 07 | |
| Q.4 | (a) Give examples of technologies used to produce the reactive hydroxyl free radical | 03 |
| (b) Enlist pros and cons of MBR | 04 | |
| (c) Write a short note: membrane fouling | 07 | |
| Q.5 | (a) Enlist the application of Electro-floatation | 03 |
| (b) Discuss in brief mechanism of Electrocoagulation | 04 | |
| (c) Discuss in details: Carbon regeneration and reactivation | 07 | |
| Q.6 | (a) Enlist the materials used for electrodes in Electro-oxidation process. | 03 |
| (b) Explain the factors affecting Electrocoagulation | 04 | |
| (c) Explain in details with all the relevant equations design of granular activated carbon contactor | 07 | |
| Q.7 | (a) Draw only the flow diagram for the removal of ammonia by zeolite exchange | 03 |
| (b) With reference to the advanced oxidation process, explain the terms radical addition and radical combination | 04 | |
| (c) Discuss in details application of Ion Exchange | 07 | |
| Q.8 | (a) Enlist the parameters that affect the removal of heavy metals using ion exchange | 03 |
| (b) With reference to the advanced oxidation process, explain the terms hydrogen abstraction and electron transfer | 04 | |
| (c) Write down all the important ion-exchange reactions for synthetic resins | 07 |
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