Continuous on-line adjustable disinfectant/sanitizer/bleach generator
AssigneeEcolab USA Inc.
InventorsPaul R. Kraus, Thomas C. Rustad
Life of this patent
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Abstract
Methods and systems for on-site, continuous generation of peracid chemistry, namely peroxycarboxylic acids and peroxycarboxylic acid forming compositions, are disclosed. In particular, an adjustable biocide formulator or generator system is designed for on-site generation of peroxycarboxylic acids and peroxycarboxylic acid forming compositions from sugar esters. Methods of using the in situ generated peroxycarboxylic acids and peroxycarboxylic acid forming compositions are also disclosed.
Claims20
A method of cleaning a hard surface using an on-site generated peroxycarboxylic acid forming composition comprising:
- obtaining a user-or system-inputted peroxycarboxylic acid forming composition on-site using an adjustable biocide formulator or generator system comprising:
- an apparatus comprising a reaction manifold, a series of feed pumps and an outlet for dosing a peroxycarboxylic acid forming composition from said reaction manifold;
- and
- applying said peroxycarboxylic acid forming composition in an amount sufficient to sanitize, bleach and/or disinfect a hard surface in need thereof,
- wherein said reaction manifold is a length of tubing having multiple points of input via at least one injection manifold wherein said feed pumps provide said reagents for the continuous production of said peroxycarboxylic acid forming composition;
- wherein said feed pumps are in fluid connection with said reaction manifold and supply said reagents to produce said peroxycarboxylic acid forming composition in said reaction manifold;
- wherein said reagents comprise the following three reagents:
- (1) a sugar ester, (2) a source of alkalinity, and (3) an oxidizing agent;
- wherein said reaction manifold is in fluid connection with said outlet to dispense said peroxycarboxylic acid forming composition;
- wherein said sugar ester is an ester of a polyhydric alcohol and a C1 to C18 carboxylic acid;
- and
- wherein said peroxycarboxylic acid forming composition is an individual or mixed peroxycarboxylic acid forming composition according to a user-or system-inputted selection.
A method of cleaning a health care surface using an on-site generated peroxycarboxylic acid forming composition comprising:
- obtaining an adjustable biocide formulator or generator system comprising:
- an apparatus comprising a reaction manifold, a series of feed pumps and an outlet for dosing a peroxycarboxylic acid forming composition from said reaction manifold, wherein said reaction manifold is a length of tubing having multiple points of input via at least one injection manifold wherein said feed pumps provide said reagents for the continuous production of said peroxycarboxylic acid forming composition, wherein said feed pumps are in fluid connection with said reaction manifold and supply reagents to produce said peroxycarboxylic acid forming composition in said reaction manifold, and wherein said reaction manifold is in fluid connection with said outlet to dispense said peroxycarboxylic acid forming composition;
- inputting a user-or system-controlled peroxycarboxylic acid forming composition or peroxycarboxylic acid formulation into a control software for a continuous adjustable biocide formulator or generator system, wherein said input formulation selects an individual or mixed peroxycarboxylic acid forming composition or peroxycarboxylic acid and corresponding volume or mass for continuous on-site generation;
- combining the following three reagents in the adjustable biocide formulator or generator system:
- (1) one or more sugar ester, (2) a source of alkalinity and (3) an oxidizing agent at alkaline pH;
- and
- applying said peroxycarboxylic acid forming composition in an amount sufficient to sanitize, bleach and/or disinfect a hard surface in need thereof,
- wherein the one or more sugar ester is an ester of a polyhydric alcohol and a C1 to C18carboxylic acid.
Dependencies are inferred from the claim text.