MAGNETICALLY MODIFIED AEROSOL DECONTAMINATION APPARATUS AND METHOD

• US 20100061888A1
• Filed: 06/15/2009
• Published: 03/11/2010
• Est. Priority Date: 09/08/2008
• Status: Abandoned Application

• Current Assignee: Advanced Disinfection Technologies LLC
• Original Assignee: Advanced Disinfection Technologies LLC
• Inventors: Stolz, Paul, Hale, Mark A., Sias, Ralph M., Szekely, Jeff
• Application Number:
  US12/484,689
• Publication Number:
  US 20100061888A1
• Time in Patent Office: Days
• US Class Current: 422/28
• CPC Class Codes: A61L 2/08 Radiation
• CPC Class Codes: A61L 2/202 Ozone
• CPC Class Codes: A61L 2/208 Hydrogen peroxide
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: A61L 9/14 using sprayed or atomised substances including air-liquid contact processes

Abstract

Decontamination is achieved by practicing a method using the disclosed apparatus for producing a magnetically energized, excited decontamination aerosol 26. The apparatus has a source of decontamination fluid 10 and an aerosol producer 12 that operates at substantially one atmosphere ambient pressure. A magnetic energizer 20 modifies the energy state of the aerosol 14 which then passes through a charging ring 24. The further modified, excited droplets 26 then permeate a location or contact an object 28 to be decontaminated.

Claims

1. A decontamination system for killing microorganisms on contact, the microorganisms being situated on a substrate or suspended in an ambient environment, the system comprising:

A. a source of a decontamination fluid;

B. an aerosol producer for receiving the decontamination fluid and creating an aerosol of uncharged droplets;

C. a magnetic energizer through which the aerosol passes, the energizer including a high density, uniform array magnetic field to modify the energy state of the droplets and create reactive oxygen species in or on the surface of the droplets, thereby creating modified energized droplets; and

D. a charging ring that receives the modified droplets, aligns ions therewithin and moves reactive oxygen species towards the surface of the droplets, thereby creating further modified excited droplets and allowing the further modified droplets to remain in a stable form in transit to the substrate or environment to be treated,

wherein the further modified droplets penetrating an area to be treated without dependence on airflow, the further modified droplets being similarly charged and mutually repulsive, thereby causing them to diffuse into the area be treated, so that the further modified droplets react at an ambient pressure and temperature with contaminants associated with the area to be treated and are transformed in situ into an uncharged state, thus decontaminating the substrate or environment and creating one or more benign reaction products that leave the substrate undamaged and volatilize or leave a bio-protective film on the substrate.

2. The system of claim 1, wherein the source of the decontamination fluid comprises

0.1% -10% of component A, where component A is selected from the group consisting of hydrogen peroxide, urea peroxide, and other organic peroxides;

70%-98% of component B, where component B is selected from the group consisting of water and deionized water; and

1%-10% of component C, where component C is selected from the group consisting of isopropyl alcohol, n-propyl alcohol, ethyl alcohol, and protic/aprotic polar solvents.

3. The system of claim 2, further including an antimicrobial additive that may leave a bioprotective residue on the substrate after decontamination.

4. The system of claim 2, further including boric acid for treating a substrate or environment that includes an infestation of bed bugs, lice and like pests.

5. The system of claim 1, wherein the source of the decontamination fluid comprises a source of an excitable species selected from the group consisting of hydrogen peroxide, urea peroxide and other organic peroxide complexes.

6. The system of claim 1, wherein the source of the decontamination fluid further comprises 0.05-3% of a promoting specie selected from the group consisting of ethylenediaminetetraacetic acid, chelated metal ions, ozone, and mixtures thereof.

7. The system of claim 1, wherein the source of the decontamination fluid further comprises a promoting specie selected from the group consisting of an alcohol, an enzyme, a fatty acid, an acid, a chelating agent, and mixtures thereof.

8. The system of claim 1 wherein substantially all of the excited droplets react with contaminants associated with the substrate or environment.

9. The system of claim 1, further including a source of thermal energy for raising the temperature of the decontamination solution.

10. The system of claim 1, wherein the aerosol producer and the magnetic energizer are disposed proximally, so that the energizer influences the droplets in the aerosol of the decontamination fluid as they leave the aerosol producer.

11. The system of claim 1, wherein the magnetic energizer is located remotely from the aerosol producer.

12. The system of claim 1, wherein the system further includes a chamber into which is placed an object or member to be decontaminated, into which the excited droplets of the decontamination fluid are directed.

13. The system of claim 1, wherein the system operates in an open environment.

14. The system of claim 1, wherein the magnetic energizer includes an apparatus selected from the group consisting of a Helmholtz coil, a Maxwell coil and other such coil arrays that are energized by a direct or alternating electric current.

15. The system of claim 1, wherein the components are arranged in a sequence selected from the group consisting of

A, B, C, D;

A, C, D, B; and

A, C, B, D.

16. The system of claim 1, further including a fan.

17. The system of claim 1, further including a microprocessor.

18. A method for performing decontamination, comprising the steps of

I. magnetically exciting droplets of a decontamination fluid, the excited droplets including droplets that transport reactive oxygen species;

and

II. introducing the excited droplets into an environment or to a substrate to be decontaminated.

19. The method of claim 18, wherein step II further includes introducing the excited droplets into an enclosure wherein decontamination occurs at least partially within the enclosure.

20. The method of claim 18, wherein step II occurs within an enclosed chamber.

21. The method of claim 18, wherein step II occurs in an open space.

22. The method of claim 18, wherein step I includes the steps of providing a decontamination system with

A. a source of a decontamination fluid being selected from the group consisting of a gas, a liquid, and mixtures thereof,

B. an aerosol producer selected from the group consisting of a nebulizer, a fogger, and a sprayer, the aerosol producer receiving the decontamination fluid at a flow rate between 3 and 200 milliliters per minute and creating an aerosol of small substantially uncharged droplets;

C. a magnetic energizer through which the aerosol passes, the energizer including a high density, uniform array magnetic field to create reactive oxygen species within and on the surface of the droplets during a dwell time of between 0.25-3 seconds, thereby creating energized droplets in which 20-80% of the hydrogen peroxide in the droplets is converted into reactive oxygen species; and

D. a charging ring that receives the energized droplets, aligns ions within the energized droplets and moves reactive oxygen species towards the surface of the droplets, thereby allowing most of the further modified droplets to remain in a relatively stable form in which they may be held in transit to the substrate or environment to be treated,

wherein the further modified droplets have an average particle size of 1-100 microns to facilitate penetration into an area to be treated, so that dispersion is relatively widespread without significant dependence on airflow, the further modified droplets being similarly charged and mutually repulsive, thereby causing them to diffuse into an ambient environment or onto a substrate to be treated, so that the further modified droplets react at an ambient pressure and temperature with contaminants associated with the substrate or environment and are transformed in situ into an uncharged state, thus decontaminating the substrate or environment and creating one or more

benign reaction products that leave the substrate undamaged and volatilize or leave a bio-protective film on the substrate.

23. A method for decontaminating a microorganism situated on a substrate or suspended in an ambient environment, comprising the steps of:

I. providing a source of a decontamination fluid;

II. introducing an aerosol producer that receives the decontamination fluid and creates an aerosol of uncharged droplets;

III. ducting the aerosol of uncharged droplets through a magnetic energizer, thereby subjecting them to a high density, uniform array magnetic field to modify the energy state of the droplets and create reactive oxygen species in or on the surface of the droplets, thereby creating modified droplets; and

IV. passing the modified droplets through a charging ring that aligns ions therewithin and moves reactive oxygen species towards the surface of the droplets, thereby creating further modified droplets and allowing the further modified droplets to remain stable in transit to the substrate or environment to be treated, the further modified droplets being similarly charged and mutually repulsive, thereby causing them to diffuse into the area be treated,

whereby the further modified droplets penetrate an area to be treated without dependence on airflow, so that the further modified droplets react at an ambient pressure and temperature with contaminants associated with the area to be treated and are transformed in situ into an uncharged state, thus decontaminating the substrate or environment and creating one or more benign reaction products that leave the substrate undamaged and volatilize or leave a bio-protective film on the substrate.

24. A decontamination system for killing microorganisms on contact, the microorganisms being situated on a substrate or suspended in an ambient environment, the system comprising:

A. a source of a decontamination fluid being selected from the group consisting of a gas, a liquid, and mixtures thereof,

B. an aerosol producer selected from the group consisting of a nebulizer, a fogger, and a sprayer, the aerosol producer receiving decontamination fluid from the source, transported by a carrier at a flow rate between 3 and 200 milliliters per minute, the decontamination fluid and creating an aerosol of small substantially uncharged droplets suspended in air, the droplets having a high surface area to volume ratio;

C. a magnetic energizer through which the aerosol passes, the energizer including a high density, uniform array magnetic field to produce from the uncharged droplets modified droplets which contain reactive oxygen species within and on the surface of the modified droplets during a dwell time of between 0.25-3 seconds; and

D. a charging ring that receives the modified droplets, aligns ions within the modified droplets and moves reactive oxygen species towards the surface of the modified droplets, thereby forming further modified droplets that remain in a relatively stable form while in transit to the substrate or environment to be treated,

wherein the further modified droplets have an average particle size of 1-100 microns to facilitate penetration into an area to be treated, so that dispersion is relatively widespread without significant dependence on airflow, the further modified droplets being similarly charged and mutually repulsive, thereby causing them to diffuse into an ambient environment or onto a substrate to be treated, so that the further modified droplets react at an ambient pressure and temperature with contaminants associated with the substrate or environment and are transformed in situ into an uncharged state, thus decontaminating the substrate or environment and creating one or more benign reaction products that leave the substrate undamaged and volatilize or leave a bio-protective film on the substrate.