ON SITE GENERATION OF ALKALINITY BOOST FOR WARE WASHING APPLICATIONS
First Claim
1. A method of electrochemically increasing alkalinity of a detergent comprising:
- providing an alkali metal carbonate, bicarbonate or sesquicarbonate source to an electrolytic cell;
undergoing electrolysis;
removing carbon dioxide from said sodium carbonate source, wherein said increased alkalinity is a result of increased hydroxide concentration and decreased carbon dioxide concentration; and
generating a detergent use solution having increased hydroxide alkalinity compared to the original metal carbonate source supplied to the electrolytic cell.
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Abstract
Methods for enhancing alkalinity and performance of ash-based detergents are disclosed. Nonhazardous ash-based detergent alkalinity is enhanced through increasing the ratio of sodium hydroxide to ash-based alkalinity. Methods according to the invention do not require the addition of chemical ingredients, do not generate additional waste streams and use the entirety of the ash-based detergent. The methods according to the invention provide alkalinity-enhanced detergent use solutions that are sufficiently concentrated for adequate cleaning capability while only requiring minimal amounts of the use solution to be dispensed for an in situ cleaning process.
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Citations
20 Claims
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1. A method of electrochemically increasing alkalinity of a detergent comprising:
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providing an alkali metal carbonate, bicarbonate or sesquicarbonate source to an electrolytic cell; undergoing electrolysis; removing carbon dioxide from said sodium carbonate source, wherein said increased alkalinity is a result of increased hydroxide concentration and decreased carbon dioxide concentration; and generating a detergent use solution having increased hydroxide alkalinity compared to the original metal carbonate source supplied to the electrolytic cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of increasing alkalinity of a detergent use solution on site comprising:
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undergoing electrolysis of a sodium carbonate detergent source, wherein the detergent source is a concentrated detergent solution from a dispenser; decreasing the ratio of ash to hydroxide alkalinity from about 100;
0 to between about 95;
5 to about 80;
20 in a detergent use solution; andproviding said detergent use solution to an onsite cleaning application. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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12. The method of 11 wherein said sodium carbonate detergent source is provided to an anode chamber and water is provided to a cathode chamber of an electrolytic cell.
Specification