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Process for desalination of saline water, especially water, having increased product yield and quality

  • US 6,508,936 B1
  • Filed: 10/01/1997
  • Issued: 01/21/2003
  • Est. Priority Date: 10/01/1997
  • Status: Expired due to Term
First Claim
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1. A desalination process which comprises passing sea water containing a high content of hardness scale forming ionic species, microorganisms or particulate matter or total dissolved solids through a membrane nanofiltration unit to form a first water product having a reduced content of said ionic species, microorganisms, particulate matter or total dissolved solids, and thereafter passing said first water product through a thermal distillation unit to form a second water product of potable quality without salt production.

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