Integrated acid regeneration of ion exchange resins for industrial applications
First Claim
1. A method for treating hard water for use in a cleaning application using an acid regenerated ion exchange resin comprising:
- contacting a hard water source for use in a dilution system or a ware wash machine with a water treatment composition, wherein the water treatment composition comprises at least one ion exchange resin, wherein the at least one ion exchange resin generates a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said hard water source, wherein said ion exchange resin is an acid form or in an inert metal form, and wherein said ion exchange resin is regenerated using an acid;
generating the treated water source within a ware wash machine;
providing the treated water source to a wash chamber into which articles are placed for cleaning; and
combining said treated water source with a detergent or other cleaning composition to form a use solution for contacting said article or surface, 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; and
wherein the method reduces total detergent consumption of the method and/or reduces use of polymers and threshold agents in said detergent.
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Accused Products
Abstract
Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.
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Citations
14 Claims
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1. A method for treating hard water for use in a cleaning application using an acid regenerated ion exchange resin comprising:
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contacting a hard water source for use in a dilution system or a ware wash machine with a water treatment composition, wherein the water treatment composition comprises at least one ion exchange resin, wherein the at least one ion exchange resin generates a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said hard water source, wherein said ion exchange resin is an acid form or in an inert metal form, and wherein said ion exchange resin is regenerated using an acid; generating the treated water source within a ware wash machine; providing the treated water source to a wash chamber into which articles are placed for cleaning; and combining said treated water source with a detergent or other cleaning composition to form a use solution for contacting said article or surface, 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; and wherein the method reduces total detergent consumption of the method and/or reduces use of polymers and threshold agents in said detergent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification