Dialysis water purification

Abstract

In some examples, a system includes a reverse osmosis unit and an electrodeionization unit. The reverse osmosis unit may include a reverse osmosis inlet configured to be coupled to a water source, and a reverse osmosis permeate outlet configured to discharge a reverse osmosis purified stream. The electrodeionization unit may include an electrodeionization inlet fluidically coupled to and downstream of the reverse osmosis permeate outlet and configured to receive the reverse osmosis purified stream, and an electrodeionization concentrate outlet configured to discharge an electrodeionization concentrate stream. The electrodeionization concentrate outlet may be fluidically coupled to the reverse osmosis inlet and configured to recycle at least a portion of the electrodeionization concentrate stream to the reverse osmosis inlet.

Dependencies are inferred from the claim text.