In pervaporation, the permeate side is usually _____.
at a pressure greater than atmospheric pressure
at atmospheric pressure
None of these
A typical electrodialysis membrane has a pore size of
10 – 20 Å
100 – 200 Å
None of these
Which of the following membranes is used for dehydration of alcohol ?
Cross linked PVA
If the partial pressure of a gas in contact with liquid is reduced, the
amount of gas dissolved in liquid will
Decrease first then increase
Answer the following questions :
“Reduction of alcohol content of beer.” Write the most suitable
membrane process to be applicable for this operation.
How does the swelling of a membrane affect diffusion of molecules
through it ?
What is membrane packing density ?
What is the basic difference in transport mechanism of a charged and
an uncharged molecule in nanofiltration ?
Name the impurities of blood that can be removed by dialysis.
What is the basic difference between the process of sorption and
Is pervaporation an isothermal operation ?
Differentiate between homogeneous and heterogeneous ion exchange
What is the difference between a pore and a carrier in facilitated
What is the purpose of rate controlled drug delivery ?
Part – B (Answer any four questions)
Discuss in detail the four basic designs of membrane modules.
Briefly explain the phase inversion process of membrane manufacture.
Discuss the thermodynamic consideration of osmosis.
Discuss in brief the design and operating parameters for a reverse
Discuss in detail the factors affecting the performance of ultrafiltration.
Briefly explain the dead-end microfiltration.
(2 x 10)