Q. The upper limit of brine concentration is ______ times the normal sea water.

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Q. The water flux of RO membranes ______ as water viscosity lowers.

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Q. What is the maximum acceptable limit of temperature for RO?

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Q. What is the design temperature of RO systems?

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Q. What is the operating pH for RO systems?

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Q. Calculate the number of membranes required for the following data:

Flow: 535 m³/h
Area: 400 m²
Flux considered: 12 lmh

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Q. Calculate the recovery for the following data:

Product Flow: 535 m³/h
Feed flow : 635 m³/h
Flux considered: 12 lmh

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Q. What is the thumb rule to consider for osmotic pressure?

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Q. What is the flux considered while designing a reverse osmosis system for treating RO permeate?

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Q. What is the flux considered while designing a reverse osmosis system for treating bore well water?

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Q. What is the flux considered while designing a reverse osmosis system for treating surface water?

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Q. What is the flux considered while designing a reverse osmosis system for treating surface water with UF system?

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Q. Where did the research on reverse osmosis begin?

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Q. What is the membrane that selectively allows certain species to pass through called?

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Q. In RO, the solvent passes through the membrane at a much faster rate than the dissolved solids.

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Q. Which of the following membrane is used in the osmosis process?

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Q. The chlorine resistant polyamide membranes are prepared from aliphatic polypiperazine amides.

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Q. Which of the following materials is not used in the preparation of nanocomposite support membranes?

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Q. What is the pore size of LTA-type zeolite nanoparticle?

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Q. What is the pore size of MFI-type zeolite nanoparticle?

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