Q. A reverse osmosis membrane is a semi-permeable membrane that allows the passage of _________

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Q. In RO, pressure that is greater than the naturally occurring osmotic pressure is applied in order to ______

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Q. The amount of pressure to be applied depends on ______

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Q. The desalinated water is called ________

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Q. What is the other name for reject stream?

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Q. What is the percentage of dissolved salts achieved from the RO unit?

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Q. The molecular weight greater than _____ is likely rejected by an RO system.

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Q. What is a recovery?

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Q. What is salt rejection?

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Q. What is the concentration factor?

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Q. How is the salt flux expressed mathematically?

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Q. What is the average pressure at which the reverse osmosis operates for sea water desalination?

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Q. What is the average pressure at which the reverse osmosis operates for treating brackish water?

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Q. Calculate the feed flow for a two stage pass for the following data.

Recovery: 85℅
Permeate flow: 100 m³/hr

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Q. The ________ the salt rejection, the better the system is performing.

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Q. What is the osmotic pressure for sea water?

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Q. Membrane permeation rate increases proportionally to effective pressure.

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Q. RO membranes are made of _______

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Q. Concentrated seawater which is called _________

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Q. The osmotic pressure of the brine increases proportionally to the salt concentration.

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