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US 2011/0217761 A1Published application
Method for processing peroxygen solutions
AssigneeEcolab USA Inc.
InventorsJohn D. Hilgren, Jelte Lanting, Roger John Arthur Tippett
Life of this patent
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Abstract
The present disclosure relates to a multi-step method for processing peroxygen solutions for reuse or disposal. The method uses an enzyme and a reducing agent.
Claims20
1) A method of treating a peroxygen solution comprising:
- a) collecting an initial peroxygen solution comprising a peracid and hydrogen peroxide;
- b) adding an enzyme to the initial peroxygen solution, and then
- c) adding a reducing agent to the initial peroxygen solution
- wherein at least 0.1 parts of the peroxygen compounds are degraded by the enzyme for every 1 part of the peroxygen compounds that is degraded by the reducing agent;
- d) forming a treated peroxygen solution as a result of adding the enzyme and reducing agent.
2 more elements
19) A method of treating a peroxygen solution comprising:
- a) collecting an initial peroxygen solution comprising hydrogen peroxide;
- b) adding an enzyme to the peroxygen solution;
- c) adding a reducing agent to the peroxygen solution
- wherein at least 0.1 parts of the peroxygen compounds are degraded by the enzyme for every 1 part of the peroxygen compounds that is degraded by the reducing agent;
- d) forming a treated peroxygen solution as a result of adding the enzyme and reducing agent.
2 more elements
20) A method of treating a peroxygen solution comprising:
- a) adding an enzyme to a peroxygen solution before or during a decontamination, bleaching, or oxidizing process, and then
- b) adding a reducing agent to the peroxygen solution after the decontamination, bleaching, or oxidizing process is complete
- wherein at least 0.1 parts of the peroxygen compounds are degraded by the enzyme for every 1 part of the peroxygen compounds that is degraded by the reducing agent;
- c) forming a treated peroxygen solution as a result of adding the enzyme and reducing agent.
1 more element
Dependencies are inferred from the claim text.