Apparatus, methods, and systems for cleaning and controlling bacteria growth, such as in fluid supply lines

• US 20040004007A1
• Filed: 02/20/2003
• Published: 01/08/2004
• Est. Priority Date: 07/26/2001
• Status: Abandoned Application

• Current Assignee: H2O Technologies, LLC
• Original Assignee: H2O Technologies, LLC
• Inventors: Johnson, Aaron R., Schmeiser, Terry Allen, Orolin, John J., Baldwin, Christy J., Baldwin, Kit G., Johnson, Jul Beth
• Application Number:
  US10/372,445
• Publication Number:
  US 20040004007A1
• Time in Patent Office: Days
• US Class Current: 205/701
• CPC Class Codes: A61L 2/035 Electrolysis
• CPC Class Codes: A61L 2/18 Liquid substances or solutions comprising solids or dissolved gases
• CPC Class Codes: B08B 9/0321 using pressurised, pulsating or purging fluid E04F17/126 takes precedence
• CPC Class Codes: C02F 1/46104 Devices therefor; Their operating or servicing
• CPC Class Codes: C02F 1/4672 by electrooxydation
• CPC Class Codes: C02F 1/4674 with halogen or compound of halogens, e.g. chlorine, bromine
• CPC Class Codes: C02F 2103/32 from the food or foodstuff industry, e.g. brewery waste waters
• CPC Class Codes: C02F 2201/4612 Controlling or monitoring
• CPC Class Codes: C02F 2201/46145 Fluid flow
• CPC Class Codes: C02F 2201/4615 Time
• CPC Class Codes: C02F 2209/42 Liquid level
• CPC Class Codes: C02F 2303/04 Disinfection

Abstract

A noncaustic system for cleaning and controlling bacteria growth in fluid supply lines, containers, or on objects. The system includes an electrolytic cell generating aqueous solutions of supersaturated oxygen via electrolytic chemistry. The electrolyzed or treated water has both cleaning and antimicrobial effects when dispensed in fluid supply lines having beverage deposits, a layer or coating of bacteria, yeast, microorganisms or polysaccharide layers formed therein. The present invention further increases the germicidal activity of the above system toward microorganisms that may adhere and grow on the interior surfaces of the fluid supply line.

Claims

1. A method of cleaning a surface of bacteria comprising:

circulating water through an electrolytic cell to produce treated water; and

passing the treated water across a surface to reduce the bacteria count on the surface.

2. The method of claim 1 further comprising re-circulating the water through the electrolytic cell to further treat the water prior to passing the water across the surface.

3. The method of claim 2 wherein re-circulating the water comprises delivering the water from the electrolytic cell to a reservoir to be mixed with water in the reservoir and delivering water from the reservoir to the electrolytic cell.

4. The method of claim 2 wherein the water is re-circulated through the electrolytic cell for a predetermined period of time and wherein when the predetermined period expires, the treated water is delivered across the surface.

5. The method of claim 4 further comprising providing a timer to automatically open a valve and deliver treated water across the surface when the predetermined re-circulation period expires.

6. The method of claim 1 further comprising inducing low pressure transients in the treated water as it is passing across the surface.

7. The method of claim 6 wherein the low pressure transients are induced by cycling a valve upstream of the surface.

8. The method of claim 6 wherein the low pressure transients are induced by cycling a valve to divert water away from the surface to a reservoir.

9. The method of claim 1 wherein the bacteria includes bacterial populations, mold and yeast colonies and the bacteria has at least a 4 Log reduction after passing the treated water over the surface.

10. The method of claim 1 wherein bacteria includes mold on at least a portion of the surface and cleaning comprises removing the mold from the surface.

11. The method of claim 1 wherein bacteria includes yeast on at least a portion of the surface and cleaning comprises removing the yeast from the surface.

12. The method of claim 1 wherein bacteria includes polysaccharide on at least a portion of the surface and cleaning comprises removing the polysaccharide from the surface.

13. A method of cleaning a fluid line comprising:

circulating water to an electrolytic cell to elevate a concentration of dissolved oxygen in the treated water; and

dispensing the treated water to the fluid line to clean the fluid line.

14. The method of claim 13 wherein a microorganism layer coats at least a portion of the fluid line and cleaning the fluid line comprises removing at least a portion of the microorganism layer from the fluid line.

15. The method of claim 13 wherein a bacteria layer coats at least a portion of the fluid line and cleaning the fluid line comprises removing at least a portion of the bacteria layer from the fluid line.

16. The method of claim 13 wherein yeast coats at least a portion of the fluid line and cleaning the fluid line comprises removing at least a portion of the yeast from the fluid line.

17. The method of claim 13 wherein a polysaccharide layer coats at least a portion of the fluid line and cleaning the fluid line comprises removing at least a portion of the polysaccharide layer from the fluid line.

18. The method of claim 13 wherein the fluid line is a beverage supply line.

19. The method of claim 13 wherein the fluid line is a medical supply line.

20. The method of claim 13 wherein the fluid line is a dental rinse line.

21. The method of claim 13 wherein the fluid line is a condiment dispensing line.

22. The method of claim 13 further comprising adding sodium chloride to the water.

23. The method of claim 13 further comprising re-circulating the water through the electrolytic cell to further elevate the concentration of dissolved oxygen in the water before dispensing the water to the fluid line.

24. The method of claim 23 wherein re-circulating the water comprises transferring the water from the electrolytic cell to a reservoir and transferring the water from the reservoir to the electrolytic cell.

25. The method of claim 24 wherein the water is re-circulated for a predetermined period of time prior to dispensing the water to the fluid line.

26. The method of claim 25 wherein the predetermined period of time is about 15 minutes.

27. The method of claim 13 further comprising inducing low pressure transients in the water dispensed to the fluid line to cause dissolved oxygen to bubble out of the water within the fluid line.

28. The method of claim 27 wherein the low pressure transients are induced by cycling a valve.

29. A cleaning system for cleaning bacteria from within a fluid supply line comprising:

a fluid supply line;

an electrolytic cell fluidly coupled to the fluid supply line;

bypass piping fluidly coupled to the fluid supply line and an inlet port for the electrolytic cell for delivering water from the fluid supply line to the electrolytic cell;

an outlet port fluidly connected to the electrolytic cell, the outlet port being configured to be coupled to the fluid supply line for dispensing water from the electrolytic cell to the fluid supply line for cleaning the fluid line;

an outlet valve fluidly coupled to the electrolytic cell between the electrolytic cell and the outlet port, for controlling water flow from the electrolytic cell to the outlet port;

a pre-charge valve fluidly coupled to the electrolytic cell and the bypass piping for controlling water flow from the bypass piping to the electrolytic cell; and

a flow activated switch coupled to the electrolytic cell, the flow activated switch being configured to close a power supply circuit path to the electrolytic cell when water flow is established through the electrolytic cell.

30. The system of claim 29 further comprising a reservoir positioned in-line between the bypass piping the inlet port for the electrolytic cell, the reservoir fluidly coupled to the bypass piping and the inlet port.