Self-Dispersing Additive System, Composition, and Method for Treating Bodies of Water

Patent metadata

Field	Value
Publication number	US-2016304367-A1
Application number	US-201514689790-A
Country	US
Kind code	A1
Filing date	Apr 17, 2015
Priority date	Apr 17, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

A system, composition and method of treating a body of water with an active in a tablet form or contained in a water soluble container to improve overall water quality and ensure adequate dispersion of the active. The composition preferably comprises active(s) and an effervescent couple in solid form. The method preferably comprises dispensing a treatment composition by dropping or throwing the pellets or water soluble containers into the water. The water soluble containers preferably are bag-within-a-bag containers, with an inner bag and outer bag each having the treatment composition and air. Upon contact with the water, the effervescent couple will react to form carbon dioxide, which aids in dispersing the active and any optional ingredients in the treatment composition throughout the water.

First claim

1 . A composition for treating water, the composition comprising:
an active treatment compound; an acid; and a base, wherein the acid and base form an effervescent couple.

2 . The composition of claim 1 wherein the composition comprises:
about 0.01 to 80% active treatment compound;
about 10 to 34% acid;
about 20 to 66% base; and
wherein the percentages are by weight.

3 . The composition of claim 1 wherein the active treatment compound is calcified seaweed, and the calcified seaweed, acid and base are in a ratio of about 50:16:34 to about 80:6:14.

4 . The composition of claim 1 wherein the active treatment compound, acid and base are contained in a water soluble capsule, pouch, or other container.

5 . The composition of claim 2 further comprising a dye.

6 . The composition of claim 1 wherein the acid is citric acid and the base is sodium bicarbonate.

7 . A method of treating a body of water, the method comprising:
providing a treatment composition comprising at least one active ingredient, an acid and a base, wherein the acid and base form an effervescent couple and wherein the treatment composition is formed as a loose powder or pellet contained within a water soluble container; and dispensing the treatment composition in the body of water by throwing or dropping water soluble containers in the body of water.

8 . The method of claim 7 wherein at least two water soluble containers are provided and at least one water soluble container is dispensed at a location within the body of water that is spaced-apart from a location where at least one other water soluble container is dispensed.

9 . The method of claim 7 wherein the active ingredient is calcified seaweed, and the calcified seaweed, acid and base are in a ratio of about 50:16:34 to about 80:6:14.

10 . The method of claim 7 wherein the water soluble container is a bag-in-bag container comprising an outer water soluble bag and an inner water soluble bag and having the treatment composition and air or gas within the inner bag and the outer bag.

11 . The method of claim 10 wherein the active ingredient is calcified seaweed and the treatment composition comprises about 70 to 80% calcified seaweed, about 10 to 34% acid, about 20 to 60% base, and further comprises about 0.5% or less optional additives, wherein the percentages are by weight.

12 . The method of claim 7 wherein the body of water is a cooling or chilled water system and the active ingredients remediate biofilm within the cooling or chilled water system.

13 . The method of claim 12 wherein the treatment composition comprises: a first chelating agent in a concentration in the range of about 30 ppm to 120 ppm;
a second chelating agent in a concentration in the range of about 680 ppm to 2700 ppm; and
an anionic surfactant in a concentration in the range of about 50 ppm to 200 ppm;
wherein the concentrations are of these ingredients when mixed with a volume of water in the cooling tower or chilled water system being treated.

14 . The method according to claim 13 wherein the first chelating agent is an organic acid and the second chelating agent is the corresponding neutral salt of the first chelating agent.

15 . The method according to claim 14 wherein the first chelating agent is citric acid and the second chelating agent is sodium citrate.

16 . The method according to claim 13 wherein the surfactant is an anionic naphthalene sulfonate compound.

17 . The method according to claim 13 further comprising a tolyltriazole compound corrosion inhibitor.

18 . The method according to claim 17 wherein the corrosion inhibitor is in a concentration in the range of about 1 ppm to 20 ppm based on the volume of water in the water system being treated.

19 . A method of removing biofilm and treating a cooling or chilled water system, the method comprising the steps of:
reducing conductivity by removing some of the water from the water system if there is water in the system and filling the water system with a volume of fresh water; providing a solid treatment composition than when added to and dissolved in the water in the water system comprises a first chelating agent in a concentration in the range of about 30 ppm to 120 ppm, a second chelating agent in a concentration in the range of about 680 ppm to 2700 ppm, and an anionic surfactant in a concentration in the range of about 50 ppm to 200 ppm; and contacting the water containing the treatment composition with components of the water system for a period of time.

20 . The method of claim 19 further comprising the steps of:
adding a corrosion inhibitor and a secondary biocide to the water in the water system; and
contacting the water containing the corrosion inhibitor and secondary biocide with components of the water system for a period of time.

21 . The method of claim 19 further comprising the steps of removing substantially all of the water containing the treatment composition from the water system after it has contacted the components of the water system for a period of time.

22 . The method according to claim 19 wherein the first chelating agent is an organic acid and the second chelating agent is the corresponding neutral salt of the first chelating agent.

23 . The method according to claim 22 wherein the first chelating agent is citric acid and the second chelating agent is sodium citrate.

24 . The method according to claim 19 wherein the surfactant is an anionic compound.

25 . The method of claim 19 wherein the solid treatment composition comprises loosely packed solid ingredients within a water soluble container.

26 . The method of claim 25 wherein water soluble container is a bag-in-bag container comprising an outer water soluble bag and an inner water soluble bag;
wherein the treatment composition, an acid, a base, and air or gas are contained within the inner bag and the outer bag; and
wherein the acid and base form an effervescent couple.

27 . The method of claim 25 wherein the outer bag is has a mechanically severable appendage to aid in initiating an effervescent action by the effervescent couple and to selectively direct movement of the bag-in-bag container.

28 . The method of claim 26 wherein the outer bag and inner bag each comprise a breach point and wherein the outer bag breach point is positioned substantially opposite from the inner bag breach point.

Assignees

• Nch Corp

Inventors

• Gillespie Kelly A
• Burton Christina Bond
• Naquin Spencer
• Aykroyd Jonathan James B
• Erdman Alex
• Steimel Lyle
• Pearce Robert C

Classifications

• C02F1/66

  by neutralisation; pH adjustment (for degassing C02F1/20; using ion-exchange C02F1/42; for flocculation or precipitation of suspended impurities C02F1/52; for removing dissolved compounds C02F1/58) · CPC title

• A01N25/30

  characterised by the surfactants · CPC title

• C02F2303/22

  Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence) · CPC title

• A01N25/12

  Powders or granules (A01N25/26 takes precedence) · CPC title

• C02F1/685 Primary

  Devices for dosing the additives · CPC title