Resources Contact Us Home
Water purification system and method using reverse osmosis reject stream in an electrodeionization unit

Image Number 3 for United States Patent #7919001.

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.

  Recently Added Patents
Fail-safe upgrading of portable electronic device software
Method and system for simulating superimposition of a non-linearly stretchable object upon a base object using representative images
Method and apparatus for a cryptographically assisted commercial network system designed to facilitate buyer-driven conditional purchase offers
Biaxially oriented film which could be thermally laminated with paper and other substrates
Semiconductor device manufacture in which minimum wiring pitch of connecting portion wiring layer is less than minimum wiring pitch of any other wiring layer
Precision geolocation of moving or fixed transmitters using multiple observers
Automated measurement of concentration and/or amount in a biological sample
  Randomly Featured Patents
Method for making a reliable ohmic contact between two layers of integrated circuit metallizations
Digital counter test circuit
Microencapsulated DNA for vaccination and gene therapy
Computer programming language statement building and information tool
Offshore platform structure intended to be installed in arctic waters, subjected to drifting icebergs
Heat shields for roller tables
Step trash can
Metal body arc lamp
Seating furniture
Process for the regeneration of waste paper