GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
Subject Code: 2173513
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-VII (NEW) EXAMINATION - WINTER 2018
Subject Name: Newer waste water treatment systems
Time: 10:30 AM TO 01:00 PM
Date: 03/12/2018
Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 (a) | Explain characteristics of Membrane Process. | MARKS | 03 |
| (b) | Explain in detail mechanism of disinfection. | 04 | |
| (c) | Define the following:
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| OR | |||
| Q.1 (a) | Is Ion Exchange applied for removal of Heavy Metals? Justify the same | 03 | |
| (b) | Explain in detail method to Design of sewer. | 04 | |
| (c) | Explain in detail all the technologies to produce Hydroxyl Radical. | 07 | |
| Q.2 (a) | Explain in detail Softening Process. | 07 | |
| OR | |||
| Q.2 (a) | Describe in brief Dissolved Air Floatation. | 03 | |
| (b) | Describe in brief Hydrodynamic Cavitation. | 04 | |
| (c) | Explain in detail all methods of Neutralization. | 07 | |
| Q.3 (a) | Explain Primary Treatment with a neat flow diagram. | 03 | |
| OR | |||
| Q.3 (a) | What is the difference between unit operation and unit process. | 04 | |
| (b) | Explain in detail Activated Sludge Process with its Removal Mechanism. | 07 | |
| Q4 (a) | What are Chemical and Physical Agents of Disinfection. | 03 | |
| (b) | Describe in brief Fenton Process. | 04 | |
| (c) | Explain in detail Colloidal Stability with a neat diagram. | 07 | |
| OR | |||
| Q4 (a) | Explain Rapid Sand Filter and Slow Sand Filter. | 03 | |
| (b) | What are the factors affecting Adsorption Process. | 04 | |
| (c) | Design the section of a combined circular sewer from the following data: Area to be served = 150 hectares Population of the locality = 50,000 Max.Permissible velocity = 3.2 m/sec --- Content provided by FirstRanker.com --- Time of entry = 5 minutesTime of flow = 20 minutes Rate of water supply = 270 litres/day/capita Impermeability factor = 0.45 | 07 | |
| Q.5 (a) | Describe Rectangular Sedimentation Tank. | 03 | |
| (b) | Explain concept of removal of pollutants through Anaerobic Process. | 04 | |
| (c) | Explain in detail Nanofiltration and Electrodialysis. | 07 | |
| OR | |||
| Q.5 (a) | Explain Application of Ion Exchange for Nitrogen Removal. | 03 | |
| (b) | Explain Aerated and Vortex Grit Chamber | 04 | |
| (c) | There is difference between Advanced Wastewater Treatment and Tertiary Treatment. Justify the Statement. | 07 |
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