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.

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

OXS Ozone Water System

Overview of the OXS Ozone Water System

Overview

OXS Ozone Water Systems will dissolve ozone into water for point of use applications, or water treatment applications where dissolved ozone in water is required. The OXS System is capable of producing up to 100 g/hr of ozone from oxygen with an integrated oxygen concentrator and ozone generator, the OXS Injection Systems also introduce this ozone into water at 100 GPM. For more information on the OXS Ozone Water System, Please Click Here.

How It Works

Main Features

  • One touch ON/OFF switch
  • Ambient ozone safety sensor integrated in central controller
  • CPVC piping is used for maximum ozone resistance
  • Stainless steel ozone compatible pump
  • Ozone produced from oxygen at high concentration
  • Great mass transfer of ozone into water
  • Capable of high dissolved ozone levels
  • Compact design

For more information, as well as purchasing options for the OXS Ozone Water System, Please Click Here.

Introducing: EnozoWash

The EnozoWash

The EnozoWASH is an industrial spray washer developed by Ozone experts that utilizes Enozo’s patented Active Diamond Electrolytic Process Technology™ (ADEPT) to create a sustainable, easy-to-use low-concentration ozone sanitizer from water in water.  The EnozoWASH is ideal for use on large areas and surfaces including floors, walls, outdoor spaces, plants and produce. The EnozoWASH helps the user avoid the purchase of several different cleaners and sanitizers, and since the EnozoWASH can be connected to standard hoses and clean water sources, there is no need to purchase special attachments. It requires no additional filters, no so-called stabilizers or other expensive consumables. The versatile EnozoWASH sanitizing sprayer can be used as either a hand-held sprayer or incorporated into an integrated cleaning system. The EnozoWASH produces a low-concentration ozone cleaner and sanitizer so evacuation of a designated area before or after spraying the ozonated water is not necessary.

Key Product Features

The EnozoWash is the newest and most innovative product when it comes to environmentally friendly sterilization from Enozo. By combining Ozone with water in water, the EnozoWash is great for applications where a large surface area needs to be disinfected. This product uses a rechargeable battery with a lifespan of over 500 full-charges. EnozoWash also runs with a one touch/hold button and a lightweight handle to optimize ease-of-use for you. Along with enhanced usability, LED lights are used to clearly display sprayer function and show updates on charging progress. The electrolytic cell inside the EnozoWASH is created from a proprietary diamond process technology and generates ozone on-demand in water. This proprietary process allows the EnozoWash to produce a .3-1.5 ppm flow of managed ozone. 

Typical Applications

-Sanitizing

-Delivery Trucks

-Schools

-Movie Theaters

-Gardens

Product Specifications

For more information/purchasing options, please click here.

Product Spotlight: VMUS-4

VMUS-4 Ozone Generator

With the VMUS-4 Corona Cell recently being added to our website, it is a great time to take a look at the specs and features of the VMUS-4 Ozone Generator.

The VMUS-4 is an ozone generator can produce ozone from dry air, or oxygen feed gas.  Either vacuum operation or pressure works fine for the ozone generator cell.  Air cooled operation allows for use in a multitude of applications without the dilemma of cooling water.  With the smaller size and secure ozone production, the VMUS-4 is a great value in ozone generators! The VMUS-4 is a wall mountable Ozone generator which produces up to 10 g/hr of ozone @ 4 l/min of oxygen at over 3% by weight. Higher ozone concentrations are possible at lower oxygen flow rates. At 1 LPM the VMUS-4 produces ozone at 5.3% by weight. For full details on ozone generator performance view our performance chart. This generator uses corona discharge technology. The corona cell in the VMUS-4 uses a true quartz dielectric in a stainless-steel shell. This technology offers maximum reliability and ability for future repairs if ever necessary. Every component on the VMUS-4 is replaceable or repairable for long-term operation in your facility. 

Key Features:

  • Produces Up to 10 g/hr ozone efficiently
  • Capable of also producing 4 g/hr ozone from dry air
  • Wall mountable
  • Flow meter is standard
  • Adjustable output Standard
  • Flow Switch Standard
  • Detachable power cord
  • Easy to install and operate
  • Powder coated Al. cabinet
  • Can operate under pressure or vacuum
  • Circuit protection equipped
  • Rebuildable ozone generator corona cell
  • 120 or 220 VAC power, 50/60 Hz capability standard

Different Options

4-20 mA input control – control output of ozone generator from 0-100% via a 4-20 mA input.  Additional information on this in the adjustable ozone output section below.

External ON/OFF control – turn ozone generator ON/OFF via dry contacts from remote location.  Useful for system integration where some automation is required.

Internal air pump – small air-pump can be built into the VMUS-4 to push air through the ozone generator.  This is useful when the VMUS-4 is used with an air dryer to produce ozone and a motive flow source is required.  Such as, a bubble diffuser at the bottom of a water tank.

Disable Flow Switch – option to disable the integrated flow switch.  Useful for low-flow applications, where ozone production at flows below 1 LPM are required.

Integrated Flow switch

The VMUS-4 uses an integrated flow switch for simple and reliable automation. This switch will turn the ozone generator ON when feed-gas flow rises above about 1.5 LPM, and turn the ozone generator OFF when feed-gas flow drops below about 1 LPM. This provides some simple automation for your ozone system. When used with a simple venturi injector the VMUS-4 will turn ON and OFF automatically based on suction from the venturi. When used with an oxygen generator the VMUS-4 will turn ON and OFF automatically when flow starts or stops from the oxygen generator. This feature eliminates the need for external wiring or flow/pressure switches.

When the ozone generator is turned OFF due to no flow, the No Flow light illuminates indicating this. When the flow is present this No Flow light will go out, and the blue Ozone light will illuminate, indicating ozone is now produced. This flow switch can be disabled by choosing the “Disable flow-switch” option when purchasing.  There is no cost difference on this option.

Adjustable Ozone Output

The VMUS-4 uses a digital adjustable ozone output shown in the image above. This will allow setting the ozone output from 0-100% using the rocker switch. Green status lights will show the current power setting of the ozone generator clearly and easily. The ozone output can also be adjusted while the ozone generator is in a No Flow status and not producing ozone.

Ozone output can also be adjusted via 4-20 mA input.  This allows adjustment of ozone output via a PLC or another device for automated operation.  When this option is chosen the keypad is overridden as long as the 4-20 mA is connected, if the connection is terminated the keypad is functional again.  Ozone output is displayed via the green LED indicators on the touchpad with the 4-20 mA input or the pushbuttons.

Circuit Protection

The VMUS-4 uses a sophisticated power inverter board that will protect the corona cell and/or transformer against failure. In the event, the corona cell does become contaminated with moisture, or dust the inverter will turn OFF ozone production immediately to protect against damage. Every 6 seconds this inverter will attempt to produce ozone and will restart automatically when conditions improve. While we hope our customers never flood, or contaminated the ozone generator corona cell, we know this is a possibility, this circuit protection will prevent potentially costly repairs.

Rebuild-able Corona Cell

The VMUS-4 corona cell is completely rebuildable. The Quarts dielectric can be removed from the stainless-steel shell and be cleaned, or replaced if necessary. We know that air dryers, oxygen concentrators, and check valves can fail. Therefore, we provide an easily rebuild-able corona cell so that these external failures do not have to be fatal to your ozone generator. The VMUS-4 Corona cell consists of very few components. The Stainless shell and quartz dielectric are the main components.  Each end is sealed with a Kynar end cap that has the fitting molded in (fewer leak points) with a Viton O-ring and Kynar sealing ring.  We stock and sell all replacement and repair parts for the VMUS-4 ozone generator.  Therefore, you can be confident that no matter what happens your ozone generator will be repairable.

Water disinfection with ozone gains traction

While chlorine and ultraviolet light are the standard means of disinfecting water, ozone is equally effective in killing germs. To date, ozone has only been used as an oxidation agent for treating water in large plants. Now, however, a project consortium from Schleswig-Holstein is developing a miniaturized ozone generator for use in smaller applications such as water dispensers or small domestic appliances. The Fraunhofer Institute for Silicon Technology ISIT has provided the sensor chip and electrode substrates for the electrolysis cell.

Compared to conventional means of disinfection such as chlorine or ultraviolet, ozone dissolved in water has a number of advantages: it is environmentally friendly, remains active beyond its immediate place of origin, has only a short retention time in water and is subsequently tasteless. Due to its high oxidation potential, ozone is very effective at combating germs. It breaks down the cell membrane of common pathogens. In Germany, ozone is chiefly used to disinfect swimming pools and drinking water and to purify wastewater. Yet it is rarely used to disinfect water in domestic appliances such as ice machines and beverage dispensers or in other fixtures such as shower-toilets. MIKROOZON, a project funded by the State of Schleswig-Holstein and the EU, aims to change this. Researchers from Fraunhofer ISIT have teamed up with the Itzehoe-based company CONDIAS GmbH, which was founded in 2001 as a spin-off from the Fraunhofer Institute for Surface Engineering and Thin Films IST, and CONDIAS partner Go Systemelektronik GmbH, from Kiel. The three partners are developing a miniaturized ozone generator with integrated sensor technology and microprocessor control system.

Direct production of ozone via water electrolysis
“The ozone generator is very compact and can be integrated in systems and appliances that require regular disinfection,” says Norman Laske, researcher at Fraunhofer ISIT. “You simply connect it up to the water line, and it will produce the right amount of ozonized water whenever required.” The ozone generator is only a couple of cubic centimeters in size and comprises an electrolysis cell, a sensor chip, control electronics to regulate current and voltage, and electronics to read the sensor signals. “The two electrodes are separated by an ion-conducting separator membrane,” Laske explains. “When a voltage is applied across the electrodes, the water is split by a process of electrolysis. Because of the diamond layer coating the electrodes, this process first forms hydroxyl radicals, which then react to form primarily ozone (O3) as well as oxygen (O2).”

The electrodes for the ozone generator are made of silicon wafers with precisely etched trenches.

The electrodes for the ozone generator are made of silicon wafers with precisely etched trenches. Credit: Fraunhofer-Gesellschaft

Diamond-coated silicon electrodes
How the electrodes with their boron-doped diamond layer are made is the know-how that has given CONDIAS GmbH its name. The company already uses a chemical vapor deposition process to coat large-scale electrodes required to disinfect the ballast water of marine vessels. However, the electrodes required for the MIKROOZON generator are much smaller. They are made of silicon and have finely etched trenches that run through the electrodes to form narrow slits on the reverse side. In order to be able to etch these trenches with the required precision, the researchers from Fraunhofer ISIT had to have wafer material manufactured to their own specifications.

To build an ozone generator, pairs of these electrodes are mounted back to back, with a separator membrane between them. The gases are released at the interface to the separator membrane and then escape through the trenched structure to the other side of the electrode, where the turbulence of the water flow ensures that they are efficiently dissolved and dispersed.

The sensor chip from Fraunhofer ISIT is equipped with three sensors to measure conductivity, mass flow and temperature. These parameters need to be monitored in order to control the electrolytic process. The sensor chip provides the data that is required to control ozone production in line with the quality and the amount of water used. “In order to ensure that there is enough ozone available over the period required, the temperature has to be monitored,” Laske explains. “This is because ozone decomposes more quickly at higher temperatures.” Conductivity correlates to the degree of water hardness: the harder the water, the higher the conductivity—meaning that more current must flow in order to achieve the desired effect. When equipped with a system to monitor these parameters, the ozone generator should be capable of processing up to 6 liters of water per minute—without the sensor chip, it is currently specified for 0.5 to 1.5 liters.

CONDIAS is marketing the mini-generator under the brand name of MIKROZON. “Each partner has contributed years of experience from their own area of specialization,” says Volker Hollinder, CEO of CONDIAS GmbH. “This has created a product that can now be manufactured on an industrial scale. The spread of the coronavirus has underlined the importance of disinfection. The use of chemical disinfectants is often problematic, because they leave harmful residues. Our system uses electrolytically generated ozone to eliminate germs. It therefore does not produce any residues from disinfectants.”

Source:  Fraunhofer-Gesellschaft

A Gallon of 3ppm Aqueous Ozone for Sale



Ozonated water, bleach, and hydrogen peroxide are three oxidizing agents useful for disinfection, odor control, color removal, water treatment, food preparation, and more. Bleach and hydrogen peroxide are common, low cost household items, but you will never find a gallon of ozonated water in the store even though it has many superior qualities. Equipment can be purchased to make a gallon of aqueous ozone, but how does the price compare to hydrogen peroxide or bleach? Let’s figure it out.

Oxidizers pack stored up molecular energy that breaks apart odor and color molecules. The energy is released on contact and physically disables or destroys microorganisms and viruses. Bleach, a combination of chlorine and oxygen, is valuable because it is stable and will oxidize over a long length of time. Hydrogen Peroxide, a water molecule with one extra oxygen atom, can also be stored and its oxidizing power applied when needed. Ozone molecules combining 3 atoms of oxygen are dissolved in water to produce ozonated water,, better known as aqueous ozone. The ozone immediately reacts with any contaminants in the water and breaks down to oxygen over a matter of minutes.

Oxidizers are very useful for solving everyday problems. You can find a bottle of 3% hydrogen peroxide in most households, and barrels of 35-50% peroxide in many different industries. Even more common is a gallon of bleach. The power and value of oxygen is well-known, and the convenience of having this power in a jug of hydrogen peroxide or bleach is very attractive. A gallon of aqueous ozone also contains this oxidating power, and its uses are diverse and growing. You will not find a gallon of ozonated water for sale because it has a shelf life of minutes. It is highly reactive and therefore quickly dissipates back to oxygen within a matter of minutes. The only way to get this powerful tool is to make it as needed with electricity.

Before discussing the equipment needed to ozonate water, we will explore some of the ways it can be used. Ozone dissolved in water has been used for over 100 years in large scale industrial settings, but a growing number of people are discovering the value of ozonated water in smaller applications. The demand for environmentally friendly and healthy solutions to problems is driving the demand for ozonated water and the technology to provide it.

Bacteria and mold is an age-old problem for food preparation and storage. Aqueous ozone provides an attractive alternative to chemicals that may alter taste or lead to health problems. Aqueous ozone has the power to destroy bacteria as well as improve taste, smell, and appearance of many foods. A gallon of aqueous ozone can
1) Rinse a bushel of cranberries to prevent a 20% loss due to mold
2) Extend the shelf life of 20 pounds of fresh fish
3) Make 10 gallons of freshwater safe to drink
4) Provide a Log 3 reduction in bacteria count on three butchered chickens
5) Disinfect a wine carboy
6) Disinfect food preparation equipment
7) Disinfect cow udders before or after milking

Ozone will enhance the value of polluted water by helping to remove many contaminants. Ozone dissolved into a gallon of polluted water has the power to
1) Remove discoloration
2) Oxidize dissolved iron for filtration
3) Clean aquaculture water
4) Lower the chemical cost of cooling tower operation
5) Wash clothes in cold water.
6) Treat a pool or spa.
7) Remove pathogens and add oxygen for hydroponics.

This list only scratches the surface of possibilities. Many of the uses people have found for hydrogen peroxide can be accomplished with aqueous ozone. While the convenience of stored oxidative power is attractive, there are also advantages to having this power on tap. An ozone water system makes this possible, and the value may be surprising.

This brings me back to the question: how much would you pay for a gallon of ozonated water? Let’s suppose you were willing to pay somewhere between the $0.02 for bleach or $3 for the hydrogen peroxide option … $1 a gallon. Our OXS-10 ozonated water system can produce about 10 gallons of 3 ppm ozonated water per minute. At that rate, it would make 600 gallons an hour, or a value of $14,000 per day. Even at $0.05 a gallon, an OXS-10 system generates a value of $700 per day.

If you did not need that much aqueous ozone, and just wanted a few gallons to rinse produce for your family or wash clothes, some different options are available. The simplest way to prepare some ozonated water is to use a small ozone generator and a bubble stone. Bubbling ozone in a gallon of water using a small ozone generator can dissolve some ozone in water, but it is not very efficient and is difficult to attain 2 ppm without dealing with significant off-gas. Even so, many people do this and are happy with the results.

Electrolytic devices are under development and available to provide up to 2 ppm aqueous ozone from a handheld spray bottle or from a kitchen tap. They generate ozone directly from water by running an electric current to special electrodes in the water. Electrolytic devices are convenient, but over time the electrodes get fouled with minerals and ozone output levels decline. Regular cleaning with a vinegar solution restores their function.

The SB-100 spray bottle is a convenient way to apply a spray of ozonated water over a kitchen counter or for rinsing produce. When used with clean water and given a regular vinegar rinse, the spray bottle will provide 1000-2000 hours of use. It sprays 1/2 a cup of ozonated water a minute at up to 2ppm concentration. That would be 30 cups an hour or about 2 gallons an hour. Over its expected life, it will provide up to 4000 gallons of ozonated water. With a price tag of $499, the cost of a gallon of ozonated water from the convenience of a spray bottle comes to between $0.12 and $0.25.

Another option is a small battery powered pen-sized device – the O-Pen which provides a convenient way to disinfect a 16-ounce glass of water in one minute. This is equivalent to 960 ounces or 7.5 gallons per hour. Over its expected life, it has the capacity to ozonate 7500 to 15,000 gallons of water. The O-pen can be purchased for $150, so the cost of a gallon of ozonated water comes to $0.02 to $0.01 per gallon.

The OZO-Pod is capable of bringing a gallon of water up to 2-3ppm within a minute. At $189, this device is capable of providing a gallon of ozonated water at less than a penny a gallon.

Electrolytic devices provide a very simple and convenient means for making small amounts of ozonated water. They are prone, however, to fouling problems if the water quality is poor. The most reliable, long-term equipment for producing larger amounts of ozonated water consists of a high concentration ozone generator supplied with dry air or an oxygen concentrator and an injection venturi with off-gas tank. Most hot tubs have a small ozone generator with a venturi built into the circulation plumbing. A variety of options using this technology are available for home laundry applications as well.

The WT-4 ozone water system can produce 300 gallons of 1-2 ppm water for pennies a gallon over its expected life. Our industrial line of ozone water systems (OST series, OXS series, ISX series) are capable of providing much higher concentrations of dissolved ozone if needed. The ISX system can provide up to 500 gallons per minute. We also provide service and larger equipment for municipal water treatment plants.

At a penny a gallon, making 500 gallons of aqueous ozone a minute generates a value of at least $300 an hour and breaks a million dollars in value after only 5 months of operation. Hydrogen peroxide and Clorox have their place, but ozonated water is a very competitive option to supplement or replace these oxidants.

In summary, the base price for a gallon of aqueous ozone is anywhere between $0.01 and $0.25 depending on the type of equipment used. In general, a lower initial cost of small equipment will mean a larger price per gallon because it makes less ozone and doesn’t last as long. Top quality industrial equipment will be expensive, but will make large quantities of aqueous ozone and last a long time.

The actual cost of a gallon of aqueous ozone needs to include the cost of a gallon of potable water and maintenance costs for the machine. The average price for a gallon of potable water is $0.01. Even if the spray bottle at $0.25 a gallon only lasted half its expected life, you could have gallons of aqueous ozone for under $1 a gallon. Maintenance and time spent on larger machines would at the most double the cost of aqueous ozone and still be only pennies a gallon.

We can make a better price comparison to hydrogen peroxide and bleach if we dilute the typical 3% peroxide to 1%. This would have similar oxidizing power to 3ppm aqueous ozone. We can make a 100 ppm bleach solution to get an equivalent for bleach. Doing this we have the following table for comparison:

1 Gallon of 1% hydrogen peroxide $3

1 Gallon of 3 ppm ozonated water – $0.03 – $0.25

1 Gallon of 100ppm bleach solution – $0.02








Ozone used for water reclamation

Recently we installed an ISX-Series ozone system for a water reclamation project. Below are a few images of this install.

Water reclamation with ozone
Ozone used for water reclamation
ISX ozone system for water re-use
Water re-use using ozone water treatment

This is a factory water reclamation project, water follows the following path:

  • Water collection tank, holding tank
  • Chemical water treatment for coagulation – solids removed from tank
  • Water filtration – screen filter
  • Ozone water treatment
  • Filtration – bag filter
  • Holding tank, ozone bubbled in this tank
  • Sand filtration
  • Water holding tank, ozone bubbled in this tank to keep bacteria from growing
  • Water used in toilets and cleaning in the factory

The ISX-series ozone system is used in this project. This specific system was designed to produce 250 g/hr ozone and treat a water flow rate of 30 GPM passing through the ozone system.

ISX-Series ozone water system

Have an application where ozone may allow you to re-use water, or treat water for safe discharge? Give us a call, we would be glad to help.

Ozone Combats Red Tide

The USA’s Florida Southern Gulf Coast has been experiencing a severe red tide algae bloom since November 2017.

This particular event is very strong, resulting in major fish kills and disagreeable air quality on  the beach. Red tide is a type of toxic algae that naturally blooms almost every year in Florida. It often dissipates in a few weeks or a month or so. This particular bloom is very strong and has resulted in a state of emergency being declared for the affected areas. Because the tide causes breathing problems, tourism has been severely affected.

Scientists at the Mote Marine Laboratory, Sarasota, FL are conducting experiments to combat the spread of the red tide and prepare for future outbreaks. They are testing a process that

pulls red-tide-infected water from canals into 25,000 galloon tanks, treats it with ozone and pumps it back into the ocean. The initial experiments were successful in removing the red

tide and its toxins and the water chemistry returned to normal within 24 hours. This experiment was featured on several television news shows including CBS and PBS.  On September 23, 2018, Florida Governor, Rick Scott approved a $2.2 million grant to Mote Marine Laboratory to

expand its ozone treatment systems and to conduct new field testing of a specialized clay focused on quelling red tide. The testing should start within a few months.

Learning How to Harness the Power of Ozone – The Balance Barometer

A balance barometer is a very simple device that provides fool-proof protection of ozone generating equipment in a venturi injection system.   As someone new to the ozone industry learning how to harness the power of ozone, I was intrigued by the balance barometer I was asked to construct for one of our systems.  How does it work?  Why are they useful?   Is there anything particular about the dimensions that make it work properly?

 

A balance barometer is used to keep water from backing up into the output side of an ozone generator.  Corona discharge ozone generators will reliably generate ozone if, and only if, they stay very dry.  Any moisture coming into the ozone generator will shorten its life.   In a system where a venturi is used to inject and dissolve ozone in water, a catastrophic flood of water into the ozone generator is always only seconds away.  Critical to the success of any such system is that point between the ozone generator and injecting the ozone into the water stream.

 

Under normal operating conditions, the venturi through which water is forced will create suction and prevent any water from flowing back to the ozone generator.  This water will immediately flow to the generator if water flow is reduced or stops in the venturi.  A simple check valve is built into Mazzei venturis to prevent this backflow.  An additional series of stainless steel and Kynar check valves will stop or slow this water most of the time.   But even “slowing the water” or “most of the time” is a risk that can be eliminated with a simple balance barometer.

 

A balance barometer is a U shaped tube with one side about twice as high as the other.  The top of the high side is capped off, and two holes are drilled into the cap: one straight down from the top, and one in the side at the bottom edge of the cap for ozone tube fittings. One inch clear PVC works well for visual monitoring, and the diameter allows bubbles and water to pass by one another without hindering its performance.

 

So let’s hook it up to see how it works.  The very top fitting goes to the ozone generator, and the side fitting just below the top fitting goes to the venturi suction port in our system.  If sufficient water flows through the venturi, it will begin to draw air through the check valves, ozone generator, and balance barometer.  If we put some water in the balance barometer, it will block off air flow through it and force all the flow to pull through the ozone generator.  This would be the normal operation.

 

Now if the particular water system has some water pressure when water isn’t flowing through the venturi, as in a well water system, water will be forced back out the injection port.  The check valve should prevent water back flow, but if ozone has deteriorated the seal or a tiny speck of something prevents a tight seal, water will begin to flow past it and toward the ozone generator.  When it reaches the balance barometer, it will simply add water to it until the short end overflows.  Once water flow is restored to the venturi, the suction will return.  Any water in the line or extra water in the barometer will be sucked into the venturi and normal operation resumes.

 

The balance barometer works well with ozone generators that operate under very low pressure or a slight vacuum.  Only 1 psi of pressure or vacuum will balance with 27 inches of water making the minimum size short side of the tube for such a system 27 inches.  Systems that simply use the venturi to pull air through the ozone generator work well with a balance barometer.  If a balance barometer is not practical for a particular application, our stainless steel backflow preventer will provide the same type of protection using a built-in float.