Reverse osmosis with free rotor booster pump

摘要: Apparatus and process for reverse osmosis or other pressure-driven membrane fluid separations, with a free rotor booster pump to increase the pressure of feed from an initial working at which perm-selective membranes separate into permeate concentrate fractions. The is powered solely by expansion fluid, thus recovering energy amplify fluid. self-starting, provides desirable self-regulating characteristics apparatus, simplifies since auxiliary valves that were required prior art recovery turbines starting procedures running adjustments may be eliminated.