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How does water pressure and TDS affect membrane performance?

April 26, 2017affect membrane PERFORMANCE TDS water pressure

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How does water pressure and TDS affect membrane performance?

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The operating pressure for a reverse osmosis system depends on the total dissolved solids in the feed water and the desired permeate delivery pressure. It is the TDS which determines the osmotic pressure of a solution. In order for a system to deliver water, the feed pressure must be greater than the sum of the osmotic pressure difference plus the permeate pressure.