Why Destroy Ozone?


Gleanings and Reflections of an ozone student.

High quality ozone is worth its weight in gold. Ozone is increasingly recognized as an effective green alternative to disinfection chemicals. More and more of this valuable substance is being generated and used in the world. So if ozone is so valuable, why is an ozone

destruct unit integrated into most ozone generating equipment?

Ozone is valuable when it is in the right place at the right time. Dissolved in contaminated water, ozone will break down pathogens and harmful chemicals. Floating in the air we breathe, excessive ozone irritates our sensitive airways and begins to oxidize materials. Generated by ultraviolet light in the stratosphere, ozone shields the earth from harmful solar radiation. As a biproduct of breaking down automotive pollutants with solar energy, ozone adds to the discomfort of breathing stagnant air trapped around metropolitan areas. Responsible use of ozone ensures that this valuable resource stays confined to its location of use. Often this means that unused, diluted, and contaminated ozone is destroyed.

Destroying ozone is as simple as causing it to react and breaking back into oxygen molecules.

How does it work? Keep in mind that ozone is simply three atoms of oxygen bonded together with a lot of energy.

Each molecule is like a mousetrap that has been set. It doesn’t take much to trip the trigger, break the bond, release the energy, and fall back into the more stable two atom configuration we call oxygen.

Whenever ozone is being used in an application, the energy is being released to do the work desired of breaking down the compounds we need broken down.

Typically as the ozone reacts, the oxygen atoms bond with the broken parts of the molecule to form H20, C02, etc.

There are some substances that will break the ozone apart without being broken itself. A substance that does this is called a catalyst. That catalytic converter on an automobile is another example. A catalytic converter breaks down toxic gasses from combustion into less toxic compounds. One such substance that breaks down ozone is a mixture of manganese dioxide and copper oxide. This compound is manufactured by Carus Corporation under the name Carulite. It looks like dark brown gravel. It very effectively breaks ozone down to oxygen without being destroyed itself. It is non-toxic and will not burn or generate harmful gasses as a byproduct.

We manufacture a range of sizes to match the ozone destruct demand.

A very efficient and effective design is a stainless steel can shape with a pipe thread fitting on the bottom, and a flange to bolt a lid on. This design is very safe, long lasting, and easy to service. A stainless steel sieve at the bottom inlet side holds the Carulite about an inch from the bottom. This allows the ozone to flow evenly through the Carulite material above it. If the ozone is off-gasing from water or from any other wet source, this space at the bottom can be heated so that this moisture does not condense in the Carulite and shorten its life.

The catalytic action of breaking ozone down releases heat energy which is safely dissipated with the heavy gauge stainless steel housing. Virtually all the ozone is turned back to oxygen which flows from the top of the device.

If you have any questions, comments, or additional information, feel free to comment. The Oxidation Technologies website has more details and contact information. We are always happy to answer questions and listen to your needs. We would love to help you harness the power of ozone for your application.

Flow-Meter Quiz

Efficient and accurate ozone production requires accurate measurements of gas flow rates. The rota-meter style flow-meter is a simple, robust, and accurate way to measure the flow of gas or liquid.   The only moving part is a metal ball (float) within a tapered transparent tube.  As flow rate increases, the ball rises.  Try out this quick, one-question quiz to test your ability to read this instrument.

One limitation to this device is its inability to factor in gas pressure in a direct reading.  Gas under pressure is squeezed together so more gas is able to flow past the ball than it reads.  Some flow-meters are calibrated for a specific gas pressure.  Such meters are accurate only at that pressure.  This limitation is easily overcome with a simple calculation.   You can calculate an accurate flow rate at any pressure when you  know the gas pressure of the gas flowing through the meter.  How did you do on the quiz?  If you haven’t tried it yet, check out our calculator page for better chance of getting it right.


Cool Colors in Oxidation

Our lab was doing some ozone exposure testing on a water sample and I noticed a beautiful magenta color developing. Toward the end of the exposure test, the foam in the water column began to take on a pinkish color. When the ozone was turned off, the foam quickly reduced to the magenta colored liquid you see in the picture. After a few minutes, it became colorless again. Intrigued, I asked why it changed colors, and learned that it had to do with Manganese Dioxide. I did some further research, and learned that Manganese has a number of oxidation states from +2 to +7. Manganese is often found dissolved in water. As such it can not be filtered from the water. Ozone will oxidize the manganese to manganese dioxide MnO2 which is particulate and can then be filtered from water. Further ozone exposure as was done in the water sample eventually forms soluble permanganate MnO4- which has a purplish color.  See our water treatment equipment for removal of iron and manganese from well water.

Last year we did some lab testing that required water with a dissolved ozone concentration over 100 ppm. https://www.oxidationtech.com/blog/the-color-of-ozone/. Here we could distinctly see the bluish color of ozone. The intense colors only hint at the power of ozone even in much lower concentrations.

For further study and research into water treatment and manganese removal, see the International Ozone Association website and links to research.

Equipment used for water sample exposure test.

Specialized Ozone Applications, Oxidation Technologies, and The Tip of the Iceberg

Oxidation Technologies will custom build a wide variety of specialized ozone applications. In the 9 months I have been working here, few projects have been the same. We have designed and built specialized pilot systems for customers exploring the new applications for ozone in their industry. We’ve produced a variety of systems for sanitation in the food industry and organic food storage. Our systems are solving tough problems in the pet products industry, and pharmaceutical research. We design systems for applications from bottled water treatment & dairy operations to municipal water, groundwater remediation, and sewage treatment. Our systems are helping customers in the ocean well drilling as well as the airline industry. We have designed custom treatment chambers for laboratories, allergy treatment, and product treatment. We’ve done in-house materials testing on a variety of dry and liquid materials. We continue to develop precise and safe control systems. Oxidation Technologies support the whole spectrum of ozone as well as other gas use with analyzers, sensors, parts and supplies. We have worked with customers all around the world. Everyone here works hard to understand needs and develop systems that will meet those needs. The leadership here have a tenacious spirit for overcoming obstacles and refuse to give up. The phones here are always in use providing excellent customer service. We are willing to travel and visit sites when needed or on a routine maintenance basis. From design to build, every project is steeped in cost consciousness, quality, the best materials and equipment for the job. Systems are built to work well, and last for a long time. After nine months working here, I continue to grow in my appreciation for the amazing potential of ozone, the depth of expertise laying the foundation of Oxidation Technologies, and the integrity and enthusiasm for applying the power of ozone to meet customers’ needs. At the same time, I have come to realize that what I have seen so far is only the tip of the iceberg. I am confident that the culture of growth and learning here will nourish my growth in understanding ozone and our ability to harness the power of ozone for your needs.