IP Library › Granted Patent US 9,005,449
Granted Patent B2
US 9,005,449 · App. 13/605,377 · Granted Apr 14, 2015

Use of moss to reduce disinfection by-products in water treated with disinfectants

Inventors: David R. Knighton (Minneapolis, MN); Vance D. Fiegel (Shakopee, MN)
Assignee: Embro Corporation
C02F1/286C02F1/76C02F2101/12C02F2101/36C02F2103/42C02F2209/001C02F2209/003C02F2209/29C02F2303/185B01J2220/485
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Quick Facts
Patent No.
US 9,005,449
App. No.
13/605,377
Granted
Apr 14, 2015
Kind
B2
Abstract

A method of reducing disinfection by-products in water treated with disinfectants including contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products. A method of determining the effectiveness of a first method of reducing disinfection by-products in water treated with disinfectants, the first method including contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products, the method including determining the effectiveness of the first method by measuring the level of the disinfection by-products in water treated with disinfectants and contacted with the amount of non-decomposed moss.

Claims (27)

1. A method of reducing disinfection by-products in water treated with disinfectants comprising contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products, wherein the disinfection by-products whose level is reduced comprise one or more of the group of trihalomethanes and haloacetic acids.

2. The method of claim 1 , wherein the water has been treated with a disinfectant selected from the group consisting of chlorinated, brominated, or other halogen containing disinfectants.

3. The method of claim 2 , wherein the disinfectant is a disinfectant that includes chlorine.

4. The method of claim 1 , wherein the non-decomposed moss is in the form of leaves or parts of leaves.

5. The method of claim 4 , wherein the non-decomposed moss is in the form of compressed leaves or parts of leaves.

6. The method of claim 1 , wherein the non-decomposed moss is placed in a carrier.

7. The method of claim 6 , wherein the carrier is a mesh bag.

8. The method of claim 1 , wherein the non-decomposed moss is placed in a contact chamber.

9. The method of claim 1 , wherein the non-decomposed moss is placed in a filter cartridge housing.

10. The method of claim 1 , wherein the non-decomposed moss is placed in a surge tank of a pool.

11. The method of claim 1 , wherein the water is water in a spa, swimming pool, or splash deck.

12. The method of claim 1 , wherein the level of disinfection by-products in the water is reduced by 20 percent or more after eight weeks.

13. The method of claim 1 , wherein the level of disinfection by-products in the water is reduced by 40 percent or more after eight weeks.

14. The method of claim 1 , wherein the level of disinfection by-products in the water is reduced by 60 percent or more after eight weeks.

15. The method of claim 1 , wherein the disinfection by-products whose level is reduced comprise chloroform.

16. The method of claim 1 , wherein the disinfection by-products whose level is reduced comprise one or more of chloroform, bromoform, dichlorobromomethane, and dibromochloromethane.

17. The method of claim 1 , wherein the non-decomposed moss is selected from the group consisting of sphagnum papillosum, sphagnum cristatum , and mixtures thereof.

18. The method of claim 1 , wherein the level of disinfection by-products is reduced in the air above the water.

19. The method of claim 18 , wherein the disinfection by-products whose level is reduced in the air above the water comprise one or more of chloroform, bromoform, dichlorobromomethane, and dibromochloromethane.

20. The method of claim 18 , wherein the disinfection by-product whose level is reduced in the air above the water is chloroform.

21. The method of claim 18 , wherein the level of disinfection by-products in the air above the water is reduced by 20 percent or more after 28 weeks.

22. The method of claim 18 , wherein the level of disinfection by-products in the air above the water is reduced by 40 percent or more after 28 weeks.

23. The method of claim 1 , wherein the disinfection by-products whose level is reduced comprise one or more trihalomethanes.

24. The method of claim 1 , wherein the disinfection by-products whose level is reduced comprise one or more haloacetic acids.

25. A method of reducing disinfection by-products in water treated with disinfectants comprising contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products, wherein the disinfection by-products whose level is reduced comprise one or more of chloroform, bromoform, dichlorobromomethane, dibromochloromethane, 1,1,1-trichloro-2-propanone, 1,1,1-trichloroacetonitrile, chloral hydrate, dibromochloroacetic acid, dichlorobromoacetic acid, tribromoacetic acid, and trichloroacetic acid.

26. A method of reducing disinfection by-products in water treated with disinfectants comprising contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products, wherein the disinfection by-products whose level is reduced consist of the group of chloroform, bromoform, dichlorobromomethane, dibromochloromethane, 1,1,1-trichloro-2-propanone, 1,1,1-trichloroacetonitrile, chloral hydrate, dibromochloroacetic acid, dichlorobromoacetic acid, tribromoacetic acid, and trichloroacetic acid.

27. A method of reducing disinfection by-products in water treated with disinfectants comprising contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products, wherein the disinfection by-products whose level is reduced consist of the group of chloroform, bromoform, dichlorobromomethane, and dibromochloromethane.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 5, 2019
From: EMBRO CORPORATION
To: ATLANTIC BIO VENTURES, LLC
Reel/Frame 048239/0048 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 19, 2013
From: KNIGHTON, DAVID R.; FIEGEL, VANCE D.
To: EMBRO CORPORATION
Reel/Frame 029830/0098 →
Continuity (2)
Provisional Application 61531952 · Sep 7, 2011
Related Publication 20130140239A1 · Jun 6, 2013