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US 9,801,384 B2Granted
Method for controlling the production of a biocide
AssigneeA.Y. Laboratories Ltd.
InventorAyala Barak
Life of this patent
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Abstract
A method and apparatus for producing a biocide from a hypochlorite oxidant and an ammonium salt are provided. The method includes monitoring a control parameter to optimize the ratio between the hypochlorite oxidant and the ammonium salt. The control parameter may be oxidation-reduction potential, conductivity, induction or oxygen saturation.
Claims32
A method for producing a biocide comprising:
- mixing a solution of a hypochlorite oxidant with a solution of an ammonium salt to produce a biocide;
- and
- monitoring a control parameter that indicates when a maximum yield of said biocide, which yield is attainable without degradation of said biocide, has been reached;
- wherein the control parameter has a) a fixed value that changes only after said yield has been reached;
- or b) a variable value that has a maximum, a minimum or an inflection at the point when said yield has been reached;
- wherein said control parameter is selected from the group consisting of oxidation-reduction potential (ORP), conductivity, induction and oxygen saturation.
3 more elements
A method of producing a biocide, comprising:
- providing a solution of a hypochlorite oxidant;
- providing a solution of an ammonium salt;
- diluting said solution of an ammonium salt with a portion of said solution of a hypochlorite oxidant to form an ammonium salt dilution;
- mixing the remainder of said solution of a hypochlorite oxidant with said ammonium salt dilution;
- and
- monitoring a control parameter that indicates when a maximum yield of said biocide, which yield is attainable without degradation of said biocide, has been reached;
- wherein the control parameter has a) a fixed value that changes only after said yield has been reached;
- or b) a variable value that has a maximum, a minimum or an inflection at the point when said yield has been reached;
- wherein said control parameter is selected from the group consisting of oxidation-reduction potential (ORP), conductivity, induction and oxygen saturation.
6 more elements
Apparatus for producing a biocide comprising:
- a reservoir containing a solution of a hypochlorite oxidant;
- a reservoir containing a solution of an ammonium salt;
- a mixing chamber for mixing said hypochlorite oxidant with said ammonium salt to form a biocide;
- and
- a control cell for monitoring a control parameter that indicates when a maximum yield of said biocide, which yield is attainable without degradation of said biocide, has been reached;
- wherein the control parameter has a) a fixed value that changes only after said yield has been reached;
- or b) a variable value that has a maximum, a minimum or an inflection at the point when said yield has been reached;
- wherein said control parameter is selected from the group consisting of oxidation-reduction potential (ORP), conductivity, induction and oxygen saturation.
5 more elements
Apparatus for producing a biocide, comprising:
- a reservoir containing a solution of a hypochlorite oxidant;
- a reservoir containing a solution of an ammonium salt;
- a water source;
- a conduit for mixing said solution of a hypochlorite oxidant solution with said water to form a hypochlorite dilution;
- a conduit for mixing said solution of an ammonium salt with a portion of said hypochlorite dilution to form an ammonium salt dilution;
- a mixing chamber for mixing a portion of said hypochlorite dilution with said ammonium salt dilution to form a biocide;
- and
- a control cell for monitoring a control parameter that indicates when a maximum yield of said biocide, which yield is attainable without degradation of said biocide, has been reached;
- wherein the control parameter has a) a fixed value that changes only after said yield has been reached;
- or b) a variable value that has a maximum, a minimum or an inflection at the point when said yield has been reached;
- wherein said control parameter is selected from the group consisting of oxidation-reduction potential (ORP), conductivity, induction and oxygen saturation.
8 more elements
Dependencies are inferred from the claim text.