Positive Displacement Energy Recovery Systems and Methods
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United States of America Patent
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Issued Date -
Jul 18, 2013
app pub date -
Jan 17, 2013
filing date -
Jan 17, 2012
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Abandoned
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Abstract
The inventive subject matter provides apparatus, systems and methods in which a feed fluid entering a filtration system is mixed with a portion of a reject fluid. The re-introduced reject fluid is preferably pressurized using a positive displacement pump, and more preferably using a work exchange pump having a translatable piston. The re-introduced reject fluid is preferably pressurized to within 10 psi, or more preferably to within 5 psi, of the uncombined feed fluid. The filtration system can have one or more filters.
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