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Osmotic Pressure - Reverse OsmosisAdvanced Reverse Osmosis TechnologyOsmotic Pressure - Is the pressure required to prevent the flow of water across a semipermeable membrane separating two solutions having different ionic strengths. For RO systems it is osmotic pressure that has to be overcome in order to produce permeate. A “rule of thumb” is for every 100 mg/L of TDS difference between feed and permeate, 1 psi of osmotic pressure exists. For further information or assistance please contact Reverse Osmosis Chemicals International on +44 (0) 161 877 2334 or e-mail info@rochemicals.com.
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