Gujarat Technological UniversitySummer 2025 examination

GTU 3160513 Waste Water Engineering Summer 2025 Question Paper & PDF

B.E. · Chemical Engineering · Semester 6 · Subject code 3160513
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:00 PM
Questions
5 with internal choice
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Q.1

14 Marks
(a)
3 marks
Define:
1)Coagulation
2)Sludge Volume Index
3)Sedimentation
(b)
4 marks
Discuss the various source of Waste water.
(c)
7 marks

Explain ASP for waste water treatment with neat labeled flow diagram Discuss the various design parameters involved in it.

Q.2

14 Marks
(a)
3 marks
List out the unit operations involved in physicochemical treatment.
(b)
4 marks
Explain the various parameters which effect the anaerobic treatment.
(c)
7 marks

Describe the waste water treatment process in Textile industry with neat flow diagram.

(c)
7 marks
Design a process flow sheet of wastewater treatment for steel industries.

Q.3

14 Marks
(a)
3 marks

Explain the importance of equalization process in a waste water treatment plant.

(b)
4 marks
Explain the role of microorganism in biological treatment processes.
(c)
7 marks

Classify different types of anaerobic reactors. Explain in detail static granular bed reactor.

(a)
3 marks
List out the characteristics of wastewater.
(b)
4 marks

Differentiate between high rate trickling filters and low rate trickling filters.

(c)
7 marks
Explain a sequential batch reactor for aerobic wastewater treatment.

Q.4

14 Marks
(a)
3 marks
Write the challenges faced to treat wastewater treatment.
(b)
4 marks
Explain the attached growth biological process.
(c)
7 marks

Explain the working principle of oxidation ditch with process flow diagram. List out advantages and disadvantages of oxidation ditch.

(a)
3 marks
Give the design steps for trickling filters.
(b)
4 marks

Discuss Indian standards for disposal of treated wastewaters on land and in natural streams.

(c)
7 marks

Describe principle and working of Up flow Anaerobic Sludge Blanket (UASB) reactor for waste water treatment.

Q.5

14 Marks
(a)
3 marks
Explain the objective of neutralization process in wastewater treatment.
(b)
4 marks
Write the various advantages and disadvantages of anaerobic processes.
(c)
7 marks

Explain in detail Duckweed pond and vermiculture technology for wastewater treatment.

(a)
3 marks
Why reclaimed wastewater can be safe for agricultural irrigation?
(b)
4 marks

Explain the process of expanded bed reactors for anaerobic wastewater treatment.

(c)
7 marks
Explain the wastewater treatment processes in details.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Waste Water Engineering (Summer 2025, B.E. · Chemical Engineering, Sem 6). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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