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Ozone Applications

1,4-Dioxane removal with ozone A New Formulation Based on Ozonated Sunflower Seed Oil: In Vitro Antibacterial and Safety Evaluation AOP Agri-Food Processing Air Treatment Antibacterial Activity of Ozonized Sunflower Oil, Oleozón, Against Staphylococcus aureus and Staphylococcus epidermidis. Antifungal Activity of Olive Oil and Ozonated Olive Oil Against Candida Spp. and Saprochaete Spp. Aquaculture BTEX Remediation under Challenging Site Conditions Using In-Situ Ozone Injection and Soil Vapor Extraction Technologies: A Case Study BTEX removal with ozone Beef (Red Meat) Processing with Ozone Benzene Body Odors Bottled Water Cannabis Catalytic Ozonation of Gasoline Compounds in Model and Natural Water in the Presence of Perfluorinated Alumina Bonded Phases Clean in Place (CIP) Combined Ozone and Ultrasound for the Removal of 1,4-Dioxane from Drinking Water Concrete Cooling Tower Cost Effectiveness of Ozonation and AOPs for Aromatic Compound Removal from Water: A Preliminary Study Create your own Ozonated Oils Cyanobacteria and Toxin Removal with Ozone Dairy Farms Degradation of tert-Butyl Alcohol in Dilute Aqueous Solution by an O3/UV Process Drinking Water Drinking Water Disinfection E.coli O157:H7 Reduction with Ozone Effectiveness of Ozone for Inactivation of Escherichia coli and Bacillus Cereus in Pistachios Efficiency of Ozonation and AOP for Methyl-tert-Butylether (MTBE) Removal in Waterworks Ethylbenzene Evaluation of Ozone AOP for Degradation of 1,4-Dioxane Exploring the Potential of Ozonated Oils in Dental Care Exploring the Potential of Ozonated Oils in Hair Care Fire Restoration Food Odors Force Main Treatment Germicidal Properties of Ozonated Sunflower Oil Grain Treatment Groundwater Remediation Hoof Bath Hydroponic Greenhouses In Vitro Antimicrobial Activity of Ozonated Sunflower Oil against Antibiotic-Resistant Enterococcus faecalis Isolated from Endodontic Infection Influence of Storage Temperature on the Composition and the Antibacterial Activity of Ozonized Sunflower Oil Insect Control in Grains Kinetic Analysis of Ozonation Degree Effect on the Physicochemical Properties of Ozonated Vegetable Oils Lake Remediation Laundry Laundry Listeria Inactivation with Ozone MTBE removal with ozone Machine Coolant Tanks Measurement of Peroxidic Species in Ozonized Sunflower Oil Mitigation strategies for Salmonella, E. coli O157:H7, and Antimicrobial Resistance Throughout the Beef Production Chain Mold Removal in Grain Mold/Mildew Odors Municipal Water Treatment Mycotoxin Reduction in Grain Nanobubbles Odor Removal Oxidation of Methyl tert-Butyl Ether (MTBE) and Ethyl tert-Butyl Ether (ETBE) by Ozone and Combined Ozone/Hydrogen Peroxide Oxidize Tannins from Water with Ozone Oxy-Oils Ozonated Oils Ozonated Ice & Fish Storage Ozonated Mineral Oil: Preparation, Characterization and Evaluation of the Microbicidal Activity Ozonated Oils: Nature's Remedy for Soothing Bug Bites Ozonated Olive Oil Ozonated Olive Oil Enhances the Growth of Granulation Tissue in a Mouse Model of Pressure Ulcer Ozonated Olive Oil with a High Peroxide Value for Topical Applications: In-Vitro Cytotoxicity Analysis with L929 Cells Ozonation Degree of Vegetable Oils as the Factor of Their Anti-Inflammatory and Wound-Healing Effectiveness Ozonation of Soluble Organics in Aqueous Solutions Using Microbubbles Ozone Gas and Ozonized Sunflower Oil as Alternative Therapies against Pythium Insidiosum Isolated from Dogs Ozone Inactivation of E.Coli at Various O3 Concentrations and Times Ozone Regulations in Food Processing Ozone Regulations in Organic Food Production Ozone in Air Applications Ozone in Sanitation Ozone in Seafood Processing Ozone use for Post-Harvest Processing of Berries Ozone use for Surface Sanitation on Dairy Farms Pet Odors Physico-chemical Characterization and Antibacterial Activity of Ozonated Pomegranate Seeds Oil Pool & Spa Proinflammatory Event of Ozonized Olive Oil in Mice RES Case Studies Resolution Concerning the Use of Ozone in Food Processing Spectroscopic Characterization of Ozonated Sunflower Oil Stability Studies of Ozonized Sunflower Oil and Enriched Cosmetics with a Dedicated Peroxide Value Determination Study of Ozonated Olive Oil: Monitoring of the Ozone Absorption and Analysis of the Obtained Functional Groups Study of Ozonated Sunflower Oil Using 1H NMR and Microbiological Analysis Surface Sanitation TBA Removal with ozone Teat Wash Tobacco Odors Toluene Treatment of Groundwater Contaminated with 1,4-Dioxane, Tetrahydrofuran, and Chlorinated Volatile Organic Compounds Using Advanced Oxidation Processes Treatment of groundwater contaminated with gasoline components by an ozone/UV process Ultra-Pure Water Utilization of Ozone for the Decontamination of Small Fruits Various Antimicrobial Agent of Ozonized Olive Oil Vertical Farming with Ozone Waste Water Treatment Water Re-use Water Treatment Water Treatment Well Water Treatment Xylene

Ozone Production

How Ozone is Produced:

     -Ozone Production from Smog

     -Natural Ozone Production from UV Light

     -Commercial Ozone Production from UV Light

     -Natural Ozone Production from Electrical Discharge

     -Commercial Ozone Production from Electrical Discharge

     -Electrolytic Ozone Production

Ozone Production from Smog:

Ozone is formed at ground level by a chemical reaction between Nitrogen Dioxide (NO2) and/or Volatile Organic Compounds (VOC's) and UV rays from sunlight. The difference between this unhealthy ozone production and commercial ozone production, or natural ozone production in our ozone layer, is that ozone production from smog is an unhealthy cycle that is hard to break. In ozone production from smog the air quality is altered long term, ozone does not simply break down into harmless oxygen, but instead recombines to form NO2 in the atmosphere and re-start the unhealthy cycle again. See image below for example.

ozone production from smog

 

When ozone is produced naturally without the presences of other harmful contaminates like VOC's and NO2 the ozone breaks back down naturally into oxygen. This is a normal result of the instability of ozone and the short half-life inherent with the ozone molecule.

The important consideration to ozone production from smog is that ozone is not the cause of the air quality concern, but the result. Excess NO2 and VOC's in the air from pollution will cause this unhealthy ozone cycle to begin. Therefore the EPA has instituted ground level ozone standards. This is important as lowering pollution in our air will lower the unhealthy ozone cycle and improve overall air quality for all people.

Natural Ozone Production from UV Light:

The most common place in our world to find ozone is the ozone layer. This is a natural and important part of our word. UV light will create ozone from atmospheric oxygen at short wavelengths of less than 240 Nanometers (nm). UV light will also destroy ozone and break ozone back down into atomic oxygen (O) and diatomic oxygen (O2) at wavelengths from about 200 nm to 315 nm. Therefore, the ozone layer does a great job filtering UV wavelengths from about 100 – 315 nm. This is important as these are the harmful wavelengths of UV light cause sunburn in humans, and DNA damage in living tissues.

 

ozone production from UV light in the ozone layer

 

The ozone is an important part of our worlds stratosphere. The level of ozone in the stratosphere ranges from 2 to 8 ppm in the ozone layer, therefore most of the atmospheric oxygen remains in the diatomic form (O2). Another element of pollution that is commonly discussed is the potential to disrupt this balance of ozone production and destruction via UV light in the stratosphere.

Commercial Ozone Production from UV Light:

Ozone is produced commercially from an ozone generator using UV light also. Ozone is produced from UV light wavelengths below 240 nm. Ozone production peaks at UV light wavelengths of 185 nm. Using UV lights tuned specifically for a wavelength of 185 nm ozone can be produced from air.

 Ozone production from UV light for commercial applications

Advantages of UV Ozone Generator:

      Simple Construction – only a UV lamp with ballast and a fan

      Low cost – due to simple construction

      Lower nitric oxide production

Disadvantages of UV Ozone Generator:

      Low ozone output – g/hr

      Low ozone concentration – less than 1% by weight

      Bulbs and ballasts will need to be replaced

Natural Ozone Production from Electrical Discharge:

Ozone is produced from electrical discharge like a spark. This is why you may smell ozone near electric motors, electric generators, and copy/print machines. These devices and many others will produce low levels of ozone in the air through electrical discharge.

When an electrical discharge occurs near the oxygen molecule (O2) found in ambient air it will split this molecule into elemental oxygen (O). These Oxygen atoms will quickly bind to another oxygen molecule (O2) to form ozone (O3). See image below.

Lightening produces ozone in atmosphere

 

As shown, lightening is a common and large producer of ozone. Lightening will produce ozone in air at great quantities from atmospheric oxygen. This may create part of the “fresh” smell or smell of ozone after a thunderstorm. However, research has also shown that thunderstorms can actually pull ozone gas from the stratosphere also. All of these methods to elevate ground level ozone are natural and healthy.

Commercial Ozone Production from Electrical Discharge:

The most common method of producing ozone commercially and industrially is electrical discharge, or corona discharge. A corona discharge is simply a diffused spark through a dielectric to spread out that electrical discharge to a large area for maximum efficiency.

ozone production from corona discharge

There are many types and styles of corona discharge ozone generators. These go by many names, but are fundamentally the same, using these components:

     -Corona cell using a dielectric

     -Dielectric material may be glass, ceramic, or quartz

     -Dielectric may be conical, or flat plate

     -High voltage transformer to increase voltage of the electrical discharge

     -Power supply to regulate power to transformer

     -60Hz machines will only regulate the voltage to the transformer

     -High frequency machines (greater than 60 Hz) will regulate frequency and/or voltage to transformer

 

Advantages of Corona Discharge Ozone Generator:

      Scalable and can create very large amounts of ozone

      Creates ozone at medium to high ozone concentrations (up to 30% by weight)

      Cost effective for long term operation

      Low maintenance

Disadvantages of Corona Discharge Ozone Generator:

      High cost for initial capital investment

      Creates excess heat that must be removed for efficient operation

      Requires very clean, dry air/oxygen feed-gas for reliable operation

Electrolytic Ozone Production:

Ozone can be produced directly in water using electrolytic ozone generators. This has huge advantages as the contacting equipment normally required for dissolving ozone gas into water is not required.

 

Electrolytic ozone production

 

Electrolytic ozone generators use an electrical discharge in the water to split the water molecule (H2O) into H2 + O2. This O2 can also be split into O and combine to create O3. This will require a method to isolate oxygen from hydrogen and electrically charge this oxygen into ozone. Much work has been done working with catalysts, anodes and cathodes to improve efficiencies. However, this method is still unreliable in any water other than ultra-pure water, and is energy inefficient.

 

Advantages of Electrolytic Ozone Generator:

      Ozone produced directly in water, no ozone contacting equipment or off-gassing equipment required

      Compact design and size

Disadvantages of Electrolytic Ozone Generator:

      High energy consumption

      Short life of anode and cathode used for electrical discharge