Water purification system and method using reverse osmosis reject stream in an electrodeionization unit
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United States of America Patent
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Apr 5, 2011
Grant Date -
Jun 4, 2009
app pub date -
Nov 21, 2008
filing date -
May 7, 2004
priority date (Note) -
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Abstract
A method for purifying water, comprising separating a supply stream into a permeate stream and a reject stream, removing non-monovalent salt impurities from the reject stream to produce a treated stream; providing the treated stream to a concentrating compartment of an electrodeionization unit; and, producing an EDI product stream of purified water.
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