Method of and apparatus for producing potable water and salt

  • US 6,030,535 A
  • Filed: 04/22/1997
  • Issued: 02/29/2000
  • Est. Priority Date: 04/24/1996
  • Status: Expired due to Fees
First Claim
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1. An apparatus for producing potable water and salt, comprising:

  • a pre-treatment equipment for pretreating the salt water using ozone;

    a reverse osmosis membrane module for separating salt water pretreated by said pre-treatment equipment into permeated water and concentrated salt water;

    an electrodialyser unit for separating said concentrated salt water obtained by said reverse osmosis membrane module into concentrated salt water and desalted water; and

    an evaporator for evaporating moisture of said concentrated salt water obtained by said electrodialyser unit to dry salt,said permeated water obtained by said reverse osmosis membrane module and evaporated water obtained by said evaporator being supplied as potable water,wherein said pre-treatment equipment comprisesan ozone generator;

    a magnetic treatment reactor comprising a magnetic treatment section, into which the salt water is introduced, for exerting a predetermined magnetic force on the salt water, and an ozone injection and mixing section for infecting ozone generated by said ozone generator with the salt water from the magnetic treatment section, followed by mixing; and

    a filter for removing a flocculated material in the salt water obtained by said magnetic treatment reactor,said ozone injection and mixing section of said magnetic treatment reactor includinga cylindrical member for mixing;

    an ozone injection pipe inserted on the upstream side of said cylindrical member for mixing;

    a blade member for agitation and mixing provided around said ozone injection pipe in said cylindrical member for mixing; and

    a plurality of projections arranged in said cylindrical member for mixing on the downstream side of said blade member.

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