Solid aquatic organism control composition and method of use
AssigneeArch Chemicals, Inc.
InventorsDeqing Lei, Ryan Wersal
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Abstract
A biocide contains a hydrogen peroxide producing compound, in combination with controlled amounts of a chelating agent and a peroxide enhancing agent. In one embodiment, the composition can be used to control an algae population in a water body. The chelating agent and the peroxide enhancing agent synergistically combine with the hydrogen peroxide producing compound to increase the potency and effectiveness of the oxidizer.
Claims20
A solid aquatic organism control composition comprising:
- a hydrogen peroxide producing compound capable of releasing hydrogen peroxide when contacted with an aqueous medium;
- a chelating agent comprising an aminocarboxylate;
- a peroxide enhancing agent comprising a carboxylic acid or salt thereof, a hydroxyl-containing compound, a compound containing a cuprous ion, or combinations thereof;
- and
- wherein the hydrogen peroxide producing compound is present in the composition in an amount greater than or equal to about 85% by weight and the chelating agent is present in the composition in an amount of from about 0.1% to about 1.5% by weight.
A method of controlling growth of an aquatic organism comprising contacting the aquatic organism with a solid aquatic organism control composition, the solid aquatic organism control composition comprising:
- a hydrogen peroxide producing compound capable of releasing hydrogen peroxide when contacted with an aqueous medium;
- a chelating agent comprising an aminocarboxylate;
- and
- a peroxide enhancing agent comprising a carboxylic acid or salt thereof, a hydroxyl-containing compound, a compound containing a cuprous ion, or combinations thereof;
- wherein the hydrogen peroxide producing compound is present in the composition in an amount greater than or equal to about 85% by weight and the chelating agent is present in the composition in an amount of from about 0.1% to about 1.5% by weight,
- wherein the aquatic organism is contained in a body of water and the aquatic organism is contacted with the aquatic organism control composition by adding the composition to the body of water, and
- wherein the aquatic organism control composition is added to the body of water such that the composition produces a concentration of hydrogen peroxide of from about 1 ppm to about 30 ppm in the body of water.
Dependencies are inferred from the claim text.