Oxidation Technologies Website Updates

We are extremely happy to announce the updates that we have made to our website’s search bar, allowing you to go beyond simply searching for products. With the newest update, you will now be capable of looking at informative webpages, as well as going to category pages (like the pages you would get to by using our main menu), along with still being able to search for individual products. For example, see the pictures below to look at how the search bar reacts when you search “Aeroqual”:

In this example, where the term “Aeroqual” is being searched, this is how the search bar reacts. Before the update, the search bar results would only pull approximately 3 products (without a picture for extra clarification). As you can see, there are now options to go to individual product pages, as well as information pages and category pages. Look at the picture below to see the results if you were to click “Show all 78 results ->” at the bottom of the search bar.

As you can see above, this page shows you more options based on your search terms. The default page is the “Products” results where you will be given more products that relate to your search terms. To the right of the “Products” tab, you will also see a “Categories” and “Information” tabs. Clicking on either of these will give you more options as well. The images below will show you the results those tabs will give you.

*Results after clicking on the “Categories” tab
*Results after clicking on the “Information” tab

If you have any questions, you can Contact Us Here!

State of the Ozone Water Treatment Industry

Ozone is a widely used agent for water treatment including public drinking water, industrial wastewater, purification of process water, aquariums, bottled water, ground water remediation and aquaculture, among many others. Ozone finds value in these applications because it can provide multiple benefits in water treatment while decomposing back to oxygen after use. The benefits of ozone include:

•Disinfection – ozone is a biocide that can inactivate a wide range of microorganisms including virus and bacteria.
•Oxidant – ozone is capable of directly oxidizing various organic compounds, including those of emerging concern such as pharmaceuticals and personal care products found in our drinking water sources, as well as organic compounds found in industrial wastewater.
•Advanced oxidation – In combination with peroxide or UV light, ozone can be the base of an advanced oxidation process that can oxidize virtually any organic compound including difficult to treatment materials such as 1,4 dioxane.

This article will touch on some of the major existing applications and some emerging applications for ozone.

Public drinking water treatment
Chart 1 shows the distribution of ozone use in US public drinking water. Ozone provides several benefits to drinking water facilities. These include primary disinfection, taste and odor removal, color removal, removal of inorganic materials such as Fe, Mn and H2S, enhanced filtration via a micro-flocculation effect and removal of certain organic compounds. In a well-engineered process, several of these benefits can be achieved in a single injection of ozone. Being able to accomplish several treatment objectives at the same time make ozone an excellent choice for certain drinking water plants. This explains the growth of ozone for this application.

Municipal wastewater reuse
Because of water shortages caused by growth in water demand as well as loss of water supply caused by drought, more cities are thinking about reusing their wastewater for drinking water, either directly or indirectly. Several facilities have already been built using membrane-based technologies. This is a proven approach but comes with several notable drawbacks. First, you need a find a place to dispose of the waste brine rejected from the RO membranes. In coastal locations, the brine can be rejected to the ocean. In other locations it is not as simple. The second factor is cost, because of the high pressure needed in RO membranes, the electrical demand to treat the water is high.

Ozone in combination with biologically active filters (ozone-BAF) can be used to treat municipal wastewater to achieve high degrees of water purity at lower cost than membrane processes and without the need to dispose of a brine waste. Currently, large scale trials are being run by the Hampton Roads Sanitation District, in Eastern Virginia to demonstrate this technology through their SWIFT project. Other water authorities are also running ozone-BAF pilot trials. If successful, ozone-BAF could provide inland wastewater facilities with a technology to reuse their wastewater for drinking water.

Advanced oxidation processes
Another emerging application for ozone is in advanced oxidation. Advanced oxidation refers to processes that produce hydroxyl radicals (•OH). The hydroxyl radical is one of the strongest and fastest acting oxidants that can oxidize virtually any organic compound. They can be produced in a variety of ways, but ozone with peroxide and ozone with UV are two such methods. The advantage of the ozone routes is that little if any by product is left after complete and pH adjustments are not required. An important application of ozone based advanced oxidation is the removal of 1,4 dioxane from ground water contaminated with solvents. Dioxane is not readily air stripped from water, absorbed on activated carbon, or oxidized by most chemicals. Advanced oxidation by ozone and peroxide has been proven to be effective in removing the dioxane from the water via oxidation. Ozone with peroxide has also found use in industrial wastewater applications where other methods were not able to remove difficult to treat organic compounds. The use of advanced oxidation appears to be a growing technology for water treatment and ozone-based processes are a growing part of this application.

Biosolids reduction
Wastewater treatment plants utilizing the activated sludge process typically produce excess sludge that needs to be removed and disposed of from the process. Ozone has been shown in the literature and in commercial application to offer an alternative method for reducing excess sludge. This process involves exposing a portion of the activated sludge to ozone. Some of the bacteria that make up the sludge are lysed via exposure to ozone releasing COD into the wastewater. Even though some of the cells are damaged or killed, the overall process generally does not show an increase in BOD/COD leaving the process.

Depending on the amount of ozone required per unit of sludge removed and the costs associated with the current handling of the excess sludge, ozone can represent an economical alternative with conventional sludge handling processes. Ozone also offers other potential advantages to the activated sludge process including a reduction in bulking/foaming, scum control and improved denitrification. A number of wastewater treatment plants in Europe have adopted this technology and have realized a 30-40 percent reduction in excess sludge with no loss of wastewater treatment performance. A new installation is planned for the US later this year at a chemical manufacturing plant.

PFAS removal
PFAS are a group of various fluorochemicals including PFOA, PFOS, among others. They are of emerging concern since they are distributed widely in the environment, do not readily breakdown in the environment/human body and can accumulate over time. There is some evidence that they may have adverse impacts on human health. US EPA points to studies of PFOA and PFOS that show: reproductive and developmental, liver and kidney, and immunological effects and tumors in laboratory animals. As a result, the agency is studying regulation of these compounds.

A novel approach to PFAS removal is ozofractionation. Ozofractionation is a form of foam fractionation, a method to remove hydrophobic materials from water. In ozofractionation, ozone is used an oxidant, as well as the foam-forming gas. Proposed advantages for using ozone as the bubble forming gas include co-contaminant reduction and smaller bubble sizes. Smaller bubbles result in higher surface area to volume ratios and thus more material can be captured for a given volume of gas. Formation of hydroxyl radicals around the bubbles may result in negative charges that better hold the PFAS molecule.

Conclusion
Ozone continues to find new applications in water treatment while expanding its existing applications. The future looks bright for the use of ozone in various parts of the water treatment industry.

Click Here to Contact Us Today and speak with an ozone expert!

Source – Anthony Sacco from Water Conditioning & Purification International Magazine (https://wcponline.com/2021/08/15/state-of-the-ozone-water-treatment-industry/)

Custom RCB-1

Our RCB-1 Relay Control Box can be used for a wide array of different applications. It is most commonly used to regulate gas levels as an accessory to ozone monitors. Another popular application is to use it in a custom ozone chamber, where the RCB-1 is connected to an ozone monitor, which tracks the ozone levels inside of a given chamber. Once the ozone level in the chamber reaches certain point, the ozone monitor will send a signal to the relay control box, which will then send a signal to an ozone generator to stop producing ozone for the chamber. Once ozone levels in the chamber drop past a desired level, another signal will be sent through telling the ozone generator to once again begin producing ozone until the chamber gets back to an ideal level. Simply put, the RCB-1 is most typically used to regulate the ozone levels for a given circumstance.

We recently had a customer that wanted to regulate the production of his oxygen concentrators. After a call with one of our ozone specialists, they came to the conclusion that a custom RCB-1 would be the best option. Our shop technicians were able to make an RCB-1 with a built-in pressure gauge that would allow the relay control box to regulate the pressure at which the oxygen concentrators were performing.

Our RCB-1 can be found here.

Click Here to speak with an ozone expert today.

Ozone Generator Dust Disaster

Dust-Filled Ozone Generator

All is not lost when you open your ozone generator cabinet one day and find everything covered in dust.  The dust is not toxic, just messy.  It has come from the oxygen concentrator which uses a clay based zeolite material as a sieve to filter out Nitrogen from the air and supply dry oxygen for the ozone generator cells.  The dusting can be caused by moisture getting into the sieve beds, excessive flow or pressure through the oxygen concentrator.  Let’s work on getting repairs made first and then discuss ways to prevent this from happening again.

  1. The oxygen concentrator (aluminum tank assembly on the upper left side) needs to be removed and either replaced or rebuilt.  This assembly will be supplied either with 120 volt or 24 volt power.  You will need to disconnect this power along with the air feed hose and smaller 1/4″ ID oxygen tube coming off the oxygen tank.  The air hose is usually a 1/2″ barb fitting and the oxygen fittings at the other end are a quick connect type fitting. 
  2. Clean up the dust with a long bristle brush and vacuum or compressed air blower. 
  3. Remove the small tank from the oxygen concentrator.  This a storage tank/surge tank and could be full of dust.  It will also have an orifice on the outlet.  Make sure this is open.
  4. A network of green tubing with check valves and orifices are at the top.  These check valves will need to be replaced and the orifices open. 
  5. Order new parts.  It is likely that all the filters need to be replaced.  The air compressor inlet filter, two coalescing filters to remove moisture and dust from the compressed air,  and for some machines, an oxygen filter.  (see the parts list below).  When the oxygen concentrator dusts, you will need to order new or rebuilt sieve beds.  It is also likely that the valve set is compromised and the Nitrogen exhaust mufflers are plugged with dust.  The mufflers can be hard to clean, and are fairly inexpensive, so it is recommended to replace them.  The valve is a shuttle valve which is sensitive the contamination and sticking.  It can be rebuilt, but sometimes it is difficult to get it to work as well as new and it may be best to replace it. 
  6. Once everything is cleaned up, use the compressed air to gently blow some air through the ozone generator to make sure it is not plugged.  Some generators are more sensitive to getting plugged and will have an oxygen filter to prevent this.  Do not put too much pressure on the ozone generator. 
  7. Replace the filters.
  8. Re-assemble the oxygen concentrator with new sieve beds, oxygen check valves, and valve set.  Mount back in place.  It may be easier to connect the oxygen lines before mounting. 
  9. Turn the system back on.  Leave the ozone off.  The compressor will turn on and the oxygen concentrator will begin cycling the valve to direct air through the oxygen concentrator.  The compressor will reach 20-40 psi as the concentrator cycles air through the concentrator.  Exhaust nitrogen will blow out of the muffler. 
  10. Oxygen flow and pressure will register on the cabinet door. 
  11. When the oxygen supply is stabilized and flow appears normal through the ozone generator, you can turn on the ozone generator. 

The most common cause of dusting in an oxygen concentrator is excessive moisture in the feed air.  If the ozone system is located in an environment with high humidity there are three things you could do: 1) move the equipment to a dryer environment and plumb the ozone to the point of use, 2) Plumb a refrigerant air dryer between the air compressor and the coalescing filters, 3) plumb an air hose to extend the air inlet filter for the compressor to a dryer location.  Moisture, along with excessive oxygen flow rates are the leading cause of concentrator failure.  When the unit is running, adjusting the oxygen flow to a lower rate will extend the life of the concentrator. 

Replacement Parts (to visit a product page, click on the product name)

Rebuilt OG-15 Sieve Beds

Compressor Air Inlet Filter

Coalescing Filter Replacement for M28-03-CK-00 Filter Housing

Coalescing Filter Replacement for M28-03-BK– Filter Housing

Please Click Here to contact an industry expert today!

New Product: The FIOX Water System

The FIOX iron removal filter oxidizes any dissolved iron in the water with oxygen and ozone. The oxygen is pulled in from ambient air and the ozone is generated on site with a small ozone generator. The oxidized iron is filtered out with the back washable sand filter. The I-OX filters utilize an air injection system to remove iron (ferrous or clear water), manganese, and sulfur from the water via both oxidation and filtration. Unlike other iron filter alternatives, I-OX technology is designed for use in a single tank and valve system configuration, reducing both acquisition and maintenance costs yet delivering years of trouble-free service. No chemical additives or air compressors are required for operation or regeneration with the I-OX filters advanced design.

How does the I-OX filter work? During system regeneration, an air pocket is created when air is drawn in through an injector located in the brine port. During service, untreated water passes through the air pocket oxidizing any iron, sulfur, and manganese. The particles are filtered out. Then the system’s regeneration cycle backwashes the bed and replaces the air pocket, allowing the process to begin again.

Principles of Operation 

The ozone component provides protection from the common problem of iron bacteria bio-film which will plug up iron filtration systems unless the bacteria are controlled. Ozone is an energized O3 form of oxygen which not only accelerates oxidation of iron, but also destroys bacteria in the process.

FIOX Tank Benefits

     -Protect appliances and fixtures from staining

     -Low-cost – only requiring periodic backwashing

-No filter changing – Low maintenance

     -High iron removal efficiency

     -Reduce hydrogen sulfide

Features

     -Time-tested, hydraulically-balanced piston, seals and spacers control service flow and backwash

     -Non-corrosive, fiber-reinforced polymer construction

     -Electronic control

     -Environmental cover

     -Quick connect clip design

     -Keeps the time-of-day during a power outage to eliminate the need of a service call to set the clock

     -Corrosion free bypass valve

More information on the FIOX System can be found here.

Contact Us Today to speak with an industry expert about your ozone needs.

Custom Solutions from Ozone Experts

We recently had a customer contact us in need of an ozone destruct unit. This particular customer runs a company where they sell ozonated water out of their store. The process to ozonate and disinfect the water was taking place in a backroom in the store. Because of the high foot traffic in the store with customers and employees constantly going into and leaving the store, it was important that ambient ozone levels remained low. The problem was that too much ozone was leaking out into the air, creating an environment that had the possibility to become unsafe. When one of our ozone specialists spoke with the customer on the phone, they had figured a CDA destruct unit would be the best option, considering it would be able to circulate the ambient air and destroy any ozone that may be present. However, our technician thought that a different route may be best. After some time going over the dilemma, our ozone specialist recommended a custom CDU-300 ozone destruct device. This decision was reached because it would be best to destroy the ozone in the tank where it was being used to ozonate the water, instead of waiting for the ozone to leak from the tanks before trying to destroy it. The final product is this CDU-300 (seen below) with a blower assembly to destroy ozone at the source, and not allow it to get into the ambient air. This just goes to show how speaking with an ozone expert can help you get the optimal product that will best fit your specific applications.

To see our full line of ozone destruct devices, Please Click Here.

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The Key to Odor Removal – Ozone

The Process

Ozone is arguably the most efficient tactic we can use to get rid of foul odors. This is because ozone has the ability to eradicate odors at their source. Ozone can do this because it is able to adjust the chemical makeup of the molecules that are creating the bad smell. Ozone is considered to be unstable because it is made up of three oxygen atoms. Eliminating bad smells with ozone occurs when the third oxygen atom attaches to the molecules that are creating the odor. This detachment/attachment onto the foul molecules change the molecular structure of whatever is creating the bad smell, and essentially changes them to non-smelling molecules. This is the process that makes ozone a necessity when traditional remedies like baking soda or store-bought cleaning supplies simply won’t do the trick.  

Popular Applications

There are a number of different instances where ozone use would be preferred because the smell you are dealing with is simply too stubborn. One of the most common instances where ozone could be used is in regard to getting rid of cigarette odors. Cigarette smells can be especially pesky for a couple reasons, such as the smell being absorbed into fabrics (carpet, car seats), and also because cigarettes have been smoked in an area for years on end without the area ever being properly cleaned. For applications like getting the smoke smell out of cars, it is important to note that ozone on its own will not be the answer to completely getting rid of the smell. You should also have your car’s carpet deep cleaned, as well the air conditioning system cleaned out. If you fail to also follow these steps, the smoke smell will continue to come back.

Dealing with pet odors is another time when ozone may be the right solution. Ozonating specific parts of your house where your pet typically resides will get rid of the smell that your pet causes. Another popular application is getting rid of the smell caused by mold and mildew. An important thing to remember is that if you have mold, the use of ozone will not get rid of the already present mold. Using ozone in this instance will get rid of the smell that the mold is causing, and could also help in stopping the growth of mold. However, ozone will not kill the mold itself.

Safety Precautions

When it comes to using ozone for odor removal, the ozone levels present will be above the exposure limits for humans (and pets for that matter). Because of this, please remember to take some safety precautions before you begin the process of oxidizing an area.

                -Always remember to make sure that children and pets are out of the area and are unable to get into the area that you are oxidizing.

                -Wait approximately 2-4 hours after the ozone generator is done running before returning to the area where it was used.

                -In addition to human safety concerns, exposure to high enough ozone concentrations can also kill plants, cause damage to rubber, and discolor different materials, so make sure to take items out of the area you’re oxidizing to ensure they don’t get ruined.

What We Recommend

We like to suggest our Ambient Ozone Generator Rental for individuals looking to treat foul odors with ozone. This ozone generator rental is capable of efficiently producing 2.5 g/hr of ozone, and its lightweight, compact design make it incredibly portable. It uses a stainless-steel electrode corona discharge to create the ozone, enhancing reliability. For more information, as well as purchasing options, please click here!

Contact Us Here, to speak with an industry expert about your ozone needs.

Sources: Molekule.Science, The Washington Post, Solution Ozone

Air Treatment

Heating, ventilating, and air conditioning (HVAC) systems have had ozone applied to them on a large scale, there are some major reasons behind this, such as:

                -The public has become growingly aware that indoor air quality (IAQ) can be can be improved

                -Heightened intolerance towards smoking along with the increased knowledge that common chemicals can negatively impact IAQ

                -Technological advancements within the ozone industry (particularly in ozone generators/monitors) make system controls more realistic

                -Payback economics: savings in energy along with other factors

The main industrial sectors to heavily invest in ozone air treatment are gaming institutions like casinos, bingo halls, and card rooms, as well as applications within the hospitality industry (restaurants, showrooms, bowling alleys). These areas have seen high returns investing in air quality, in large part due to the common chemicals in these areas that would lower overall air quality (ex: cigarettes being allowed in most gaming buildings). Many smaller projects have also been applicated to places like taverns, designated smoking areas and advanced technology facilities where complete-building air treatment is not deemed necessary.

Most voiced objections towards ozone are in reference to its overall safety. When using ozone in public areas, the concentrations must be kept below the harmful levels. Self-controlling systems, that combine advanced ozone generation with ozone monitoring systems make this increasingly possible. However, among cognizant agencies, we do see discernment as to what should be deemed the safe levels and suitable ozone concentration guidelines. For areas where people gather together, the US FDA has stated a limit of .05 ppm. HVAC systems are programmed with automatic controls to typically stay under concentrations of .03-.05 ppm. However, these concentrations are lower than what we see occur naturally in outdoor settings, in most regions. “For ozone injected into HVAC systems it is absolutely necessary to include ozone sensors to automatically control the ozone concentration in areas where the public congregate.”

2 Major Applications

                -Casinos: Gaming facilities are continually growing worldwide, and a majority of resorts are now including them. Smoking is typically found in high quantities in most casinos, and it is a major irritant for customers as well as employees. Ozone is incredibly effective in getting rid of the unpleasant smell caused by smoking, due to the variety of VOC’s that can be found in the smoke.

                -Dubai International Airport: Odds are this is the largest ozonated HVAC system in the world, with the air treatment being applicated to all of the buildings. The airport has over 300 ozone sensor/controllers along with VOC sensor/controllers. There are many ozone generators spread throughout the HVAC ductwork, treating virtually all of the interior spaces. Preliminary findings from the Dubai International Airport were passengers and employees noted a pleasant air smell, as well as improved air quality. The airport also cut costs by spending less on maintenance, mainly because they no longer had to replace carbon filters.

More information on ozone and Air Treatment, can be found here.

Sources: Rip Rice, from the IOA https://www.ioa-pag.org/

OXS Injection Systems for Aquaculture and Hydroponics

OXS Water Treatment System

In the above image you can see an OXS-10 Ozone Water System. Ozone is an incredibly efficient component when it comes to aquaculture and hydroponics. In reference to hydroponics, the use of ozone can help in oxygenating root zones, as well as disinfecting and enhancing the hydroponic water quality. For aquaculture, ozone is used to improve water quality, reduce pathogens, and increase efficiency of the water treatment systems. We created a video going through the functions of the OXS-10, to see the video, Please Click Here! You can also Click Here to see more information, as well as purchasing options, for the OXS Ozone Water System.

Aquaculture

Aquaculture is the breeding, rearing, and harvesting of fish, shellfish, algae, and other organisms in all types of water environments. 2 of the main applications we see ozone used in aquaculture is for fish farming and ozonated ice. Ozone works great for fish farming because it keeps the water cleaner, and therefore, the fish healthier. Healthier fish can eat more feed and grow bigger/faster. After fish are harvested, they are usually put on ice. By dissolving ozone into water and quickly freezing the water, ozone is essentially trapped within the ice. Locking ozone into the ice and setting the fish on top of the ice allows for the ozone to be slowly released and increases the shelf life for the fish.

Hydroponics

One of the definitions of hydroponics is as follows, “Hydroponics is a technology for growing plants in nutrient solutions (water and fertilizers) with or without the use of artificial medium (ex., sand, gravel, vermiculite, rockwool) to provide mechanical support. Liquid hydroponic systems have no other supporting medium for the plant roots: aggregate systems have a solid medium of support.”

Hydroponics Benefits

  • Water Conservation
  • Produce Higher Yields
  • Less Labor Requirements
  • No Soil Needs
  • High Quality Foods

How Does Ozone Enhance Hydroponics?

Ozone allows us to disinfect water before it is used in a hydroponic system and gives us more control over the pathogens and algae that are present. Because of ozone’s efficiency in disinfection it is great for destroying bacteria, virus, and fungi, as well as eliminating microbes, algae and pathogens. It also gives us the ability to increase oxygen levels in the plants which can aid in increasing crop yields. Using ozone for disinfection saves money on chemical fertilizer, and can even get rid of unwanted smells inside of greenhouses.

Contact Us Today to speak with an industry expert on how we can help you!

Sources: solutionozone.com, edengreen.com, cals.arizona.edu

Custom Oxygen Concentrators

Newly-built Custom Oxygen Concentrator

We can build custom oxygen concentrators to fit many different specifications for a wide array of applications. The picture above shows one of the customized oxygen concentrators that we have recently built. For this particular unit, the customer was looking for a system that would produce oxygen at approximately 70% purity. Although typical oxygen concentrators produce roughly 93% pure oxygen, we were able to easily create an oxygen generator that met our customers specific needs. In the picture above, we can see the “Air Flow Control” knob, as well as the “Oxygen Flow Control” knob. This addition to the oxygen generator give the user the ability to easily adjust the purity of their oxygen flow. To decrease the oxygen purity, the user simply has to increase the air flow and decrease the ozone flow. Were purer oxygen desired, the opposite actions would need to be taken. Along with the adjustability, we also added in an easy-to-read LED screen to the front of the unit (see in the images below) so the user can know the specific purity of the oxygen being produced. Contact us today to talk with an industry expert and find out how we can build a system to fit your needs.

Upper-Right Corner shows the screen displaying the precise oxygen purity level.
Another view of one of our custom oxygen concentrators.

There are many different options when it comes to the customizability of these oxygen concentrators. While the unit seen above had a focus on the oxygen purity, other attributes can be factors for customization, such as the oxygen pressure, flow, and concentration. We can easily adjust the pressure, flow, and/or concentration of oxygen to fit all of your specific needs. Along with these simple customizations, we also now offer high pressure oxygen concentrators. The TOX-20 through 40 are now available in high pressure models. One of the great things about the HP series of oxygen concentrators is that they provide oxygen pressures of 90 PSI continuously, as well as a storage tank (ranging from 20 to 30 gallons) to store oxygen. To view our full line of high pressure oxygen concentrators, Please Click Here.

TOX-40 HP

If you would like to reach out and ask about our custom oxygen concentrators, Please Click Here.

To see all of the oxygen generators we offer, Click Here.