Gujarat Technological University 2011 M.E Advanced Wastewater Treatnt Technologies - Question Paper
Seat No.:__Enrolment No._
GUJARAT TECHNOLOGICAL UNIVERSITY ME Semester -III Examination Dec. - 2011
Subject code: 731801 Date: 05/12/2011
Subject Name: Advanced Wastewater Treatment Technologies
Time: 10.30 am - 01.00 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) It is proposed to reuse the treated wastewater from a dairy industry in the process. 07 Enlist and discuss the possible operations and processes for such a reuse.
(b) Describe the components of Membrane bioreactor, along with a neat sketch. 07
Q.2 (a) Write a note on The need for advanced wastewater treatment. Give examples 07 of the same.
OR
(b) Write a short note on Nutsche filter. 07
Q.3 (a) Explain the applications of membrane technologies in wastewater treatment. 07
OR
Q.3 (a) Answer the following questions : 07
(i) Define the terms :Influent, Permeate and Reject
(ii) Explain the term flux.
(iii) What is Trans Membrane Pressure?
(b) Differentiate between maintenance cleaning and recovery cleaning of MBR. 07 Prepare a list of chemicals used for cleaning of MBR.
Q.4 (a) Explain the mechanism of Reverse Osmosis and high light the advantage and 07 disadvantages of RO.
(b) Highlight the advantages and drawbacks of membrane bioreactors. 07
OR
Q.4 (a) Enlist the various advanced oxidation processes for removal of complex organic 08 constituents of wastewater and explain any one in detail.
(b) Write a short note on Ion Exchange process . 06
Q.5 (a) Write short notes on: 08
(i) Moving bed biological reactor.
(ii) Static aerobic fixed film reactor
(b) Identify the sources of sludge at the Sewage Treatment Plant and briefly describe 06 the characteristics of each.
OR
(b) Discuss the advantages and limitation of ion exchange as compared to chemical 06 precipitation softening.
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