This set of Bioseparation Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Liquid Membrane Processes”.
1. The ___________ process involves transport of solute.
a) liquid
b) solid
c) gas
d) solvent
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Explanation: The liquid membrane process comprise the solutes transport crossways a thin layer of a third liquid interrupted between two miscible liquids.
2. The two types of liquid membrane processes includes __________
a) emulsion and liquid
b) supported and liquid
c) emulsion and Supported
d) components and emulsion
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Explanation: The two types of liquid membrane are emulsion liquid membrane and supported liquid membrane. Both of them are theoretically alike but have difference in the engineering of the membranes.
3. The __________ liquid membranes are multiple suspensions.
a) supported
b) emulsion
c) both supported and emulsion
d) component
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Explanation: The emulsion liquid membranes are numerous emulsions of the water – oil – water type or the oil – water – oil type suspension.
4. The __________ phase is cut in between external and internal phase.
a) emulsion
b) supported
c) encapsulated
d) membrane
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Explanation: The membrane phase is the phase that is cut in between the continuous phase and the encapsulated phase. The mass transfer area of solute can be intensely amplified using this membrane configuration.
5. The membrane phase is separated from __________ after the solute transfer.
a) internal phase
b) external phase
c) membrane phase
d) encapsulated phase
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Explanation: The membrane phase is separated from the external phase after solute transfer and then the membrane raffinate emulsion is fragmented into its constituent phases.
6. What is the significance of the given diagram?
a) Emulsion liquid membrane
b) Supported liquid membrane
c) External phase
d) Internal phase
View Answer
Explanation: The given diagram shows the sequence of necessary operations involved in the emulsion liquid membrane process. The small circles represents the internal phase, bigger circles shows liquid membrane phase and the rest area represents the external phase.
7. What is the significance of the given diagram?
a) Emulsion liquid membrane
b) Supported liquid membrane
c) External phase
d) Internal phase
View Answer
Explanation: The given diagram shows the transport of solute in a supported liquid membrane module. The black area is supporting membrane, the colorless area is liquid membrane, the dark grey area is extract and the light grey area is raffinate.
8. With the supported liquid membrane __________ is held in place.
a) liquid membrane phase
b) external phase
c) internal phase
d) solid membrane phase
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Explanation: With the support given by liquid membranes, the liquid membrane phase is detained in a place inside a solid micro-porous inactive support by capillary forces and the very high surface areas can also be found using this membrane shape.
9. What is the significance of the given diagram?
a) Emulsion liquid membrane
b) Supported liquid membrane
c) Emulsion liquid membrane process
d) Supported liquid membrane process
View Answer
Explanation: The given figure shows process of emulsion liquid membrane and it initiates with the feed as well as membrane phase and continues to primary emulsifier with the extracting phase and both combines together to secondary emulsifier, the emulsion breaks at emulsion breaker 1 and the extract is separated and the process continuous to emulsion breaker 2 and the raffinate is removed and then the membrane phase recycles to membrane phase.
10. What is the significance of the given diagram?
a) Solvent transport
b) Solute transport
c) Mixture transport
d) Membrane transport
View Answer
Explanation: The figure represents the transport of solute in the supported liquid membrane module. The feed enters and raffinate is collected, the extracting phase works upon and the supported liquid membrane supports the extraction and finally the extracts are collected.
Sanfoundry Global Education & Learning Series – Bioseparation Engineering.
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