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Acid regeneration of ion exchange resins for industrial applications

  • US 10,052,625 B2
  • Filed: 09/06/2016
  • Issued: 08/21/2018
  • Est. Priority Date: 12/13/2011
  • Status: Active Grant
First Claim
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1. A system employing an ion exchange resin regenerated by an acid comprising:

  • an inlet for providing a water source;

    a water treatment reservoir;

    a water treatment component housed within the water treatment reservoir, wherein said water treatment component comprises at least one ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, and wherein said ion exchange resin is an acid form or in an inert metal form;

    an outlet;

    a measuring device for obtaining pH and/or proton concentration and/or total dissolved solids measurements from the water treatment reservoir, the water source and/or the treated water source;

    a controller to receive the measurements and trigger an event; and

    a water delivery line in fluid communication with a cleaning application and/or storage reservoir to provide the treated water source to the cleaning application and/or storage reservoir,wherein the event comprises regenerating the resin of the water treatment component, varying a detergent and/or rinse additive addition to the treated water source and combinations thereof;

    wherein the inlet is in fluid communication with the water treatment reservoir;

    wherein a first end of the outlet is in fluid communication with the water treatment reservoir and a second end is in fluid communication with the water delivery line;

    wherein the treated water source is a softened, acidic, and low total dissolved solids (TDS) water having a hardness level of less than about 2 grains and a pH less than about 6.

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