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.

Ozone removes color from water

Ozone does a great job removing color from water.  Ozone is an oxidant and will bleach water efficiently.  We were recently shipped a sample of wastewater from a client looking to have us determine if ozone would remove color from their water.  We were very impressed with the results, and decided to share, see video below for impressive results of ozone removing color in this water sample:

The water sample shown is 250 ml. Ozone is generated from oxygen. Oxygen/ozone flow rate of 1 LPM is initiated about 5 seconds into the video. Ozone concentration is 10% by weight.

For more information on ozone use for color removal in wastewater, see our website at the link below:

https://www.oxidationtech.com/applications/water-treatment/wastewater.html#answer2

Ozone system service – water filtration system with ozone

Recently Oxid tech service techs spent some time servicing a few older ozone systems used for livestock drinking water.  Both of these systems are used specifically for iron removal from well water on dairy farms.

ozone filtration system
Ozone filtration system for livestock – 200 GPM ozone and filtration system

ozone removes iron from livestock water
Ozone filtration system for 6,000 head dairy farm – 600 GPM ozone and filtration system

While these systems are older, only basic maintenance is required.  We visit these sites quarterly to change filters, calibrate sensors, and perform basic maintenance.  If you are looking for service on your ozone system, call our office, we may be coming to your area soon!

Ozone is an effective and chemical-free solution to iron removal from water.  Ozone will efficiently oxidize iron from water to a filterable state.  Backwasheable sand filters can be used to efficiently capture iron and discharge to drain safely.  A proper ozone system will effectively remove iron, manganese and many other minerals from water reliably with no use of chemicals.

Ozone Injection and filtration system
Ozone filtration system diagram

Click here to learn more about ozone use for well water treatment

Ozone can be used to efficiently remove many undesirable contaminants from water.  If your well water is less than ideal for your livestock, or even for your household, we may be able to help.  Ozone is commonly used to remove the following:

Ozone systems require no additional chemicals.  Ozone is produced from ambient air and introduced into the water.  Bachwashable filters (if necessary for your water) remove the undesirable contaminates from your water with no consumables.

ozone filtration system
Ozone system with filtration

Ozone filtration systems can be compact and simple.  Image above shows a basic ozone system with filtration.  Systems can also be built for large water flows as shown above.  Whatever your need, if your unhappy with your water quality, give us a call today.  We can help.

 

In celebration of earth day – consider ozone as a green method for water treatment

We have only one allotment of water in this world.  We will not get another.  As our water becomes contaminated we need better technologies to purify water safely.  Ozone is a green technology offering the perfect method to remove many contaminants from water.

 

In 1995, the World Bank estimated that contaminated water causes ten million people (10,000,000) to die annually and is the reason for 80% of all illnesses in developing countries; and that one billion people (1,000,000,000) have no access to clean drinking water.
Considering all the benefits and lack of drawbacks, ozone is a good choice for many water treatment applications.

 

Ozone for Water Treatment

Because of the excellent disinfection and oxidation qualities of ozone, it widely used in many water treatment applications. Each of these applications has various uses and methods for implementing and applying ozone.

 

Ozone has a wide variety of uses and applications in water treatment.  Ozone can be used as a disinfectant, decolorizer, deodorizer, detoxifier, precipitant, coagulant and for removing tastes. Consequently, the use of ozone should be considered when there is a need to address any of these water issues, and particularly when there is suspicion of water born pathogens as ozone is such an effective biocide.

Ozone is a green water treatment alternative lowering chemicals and reducing by-products and new residuals in water.  As ozone breaks back down to only oxygen there are no residual remaining in the water after ozone water treatment.  Ozone can also lower chemical requirements as ozone coagulates and precipitates many substances by itself, and is also a reasonably effective flocculant. Because of this, it can reduce other chemical requirements in treatment facilities.

Oxidation with ozone is efficient can lower chemical costs and overall energy consumption.  Ozone is the most powerful and effective broad spectrum microbiological control or disinfecting agent available. As an example, for the inactivation of Giardia cysts, the Ct (concentration & time) is about 100 times greater for free chlorine than for ozone. With viruses, the Ct is about six times greater for chlorine than for ozone. For Cryptosporidia, ozone is the number one, recommended disinfectant by the US EPA due to efficiency in inactivation.

Ozone is safer to use than alternative chemicals. , there is less need to add high concentrations of a long-lived poison to the water that may soon become drinking water. When ozone is implemented in drinking water treatment, the chlorine demand is greatly reduced, as it is then needed only as a way to provide a residual in the distribution system at low levels. This minimizes the potential for producing carcinogenic THMs, and other chlorine by-products.
Ozone may also lower overall chemical consumption due to its ability to disinfect without adding other chemicals which may later need to be removed.

 

What Can Ozone Treat In Water?

If it can be oxidized at normal temperatures and pressures, ozone can treat it.

Water treated with ozone may need to be filtered or settled, as ozone tends to coagulate and precipitate many impurities in the water.
Essentially, problems in water quality that are usually addressed with acid, peroxide, chlorine or other oxidants are probably prime candidates for ozone treatment.

Summary:

If ozone cannot be used to treat a water quality problem, it is likely that no other available oxidant will to do the job either.
The following contaminants or problems can all be potentially treated with ozone:

  • Bacteria – all known, including iron bacteria
  • Minerals – inorganics, dyes, and others
  • Metals – Iron, Manganese and many other
  • Organics – color, algae, other carbon compounds
  • Protozoans – all known, including Cryptosporidium, Giardia and all Amoebae
  • Viruses – all known
  • BOD & COD – reacts quickly, as ozone is a really active form of oxygen

 

The use of ozone in combination with UV or hydrogen peroxide creates an Advanced Oxidation Process (AOP) to create the Hydroxyl Radical (OH-).  This is an even more powerful method of oxidation than ozone alone.  There are no contaminates that can be oxidized that will not be oxidized by this process.

Click here to learn more about ozone and water treatment.

 

 

The importance of Groundwater Remediation

This article reposted from a distributor.

Groundwater remediation, as the name suggests, is the process of identifying and fixing groundwater problems, usually pollution or other contaminants. In some cases, groundwater remediation is the only way to solve potentially destructive environmental and health problems for whole communities. Groundwater remediation is a huge global industry, devoted to managing pollution. This remediation process has to deal with some of the world’s worst environmental problems on a daily basis.

The Importance of Groundwater Remediation

Deadly Issues in Groundwater Remediation

Groundwater contamination is one of the most common, and most difficult, environmental problems. Contaminants may include oil, chemicals, heavy metals, and other poisonous substances. In some cases, contamination is so bad that water can’t be used at all. You couldn’t even use it to wash your car.

The other problem is that these contaminants will remain in the groundwater until the problems are solved. Prevention, obviously, is the best solution. In some cases, however, prevention and a cure must work together.

A good example of this type of problem is a case which occurred in Sydney. Serious contamination had released oil into groundwater. A total of 12 different types of contaminants were present in groundwater, including metals, in large quantities. These materials, if ingested, could be fatal to humans, or cause serious health issues. If released into the environment, the materials could also cause long-term contamination for fish and the local food chain.

The need was to both deal with the existing problem and prevent future problems. The solution was to develop a site-specific project to extract and eliminate contaminants using MyCelx filters, a top-of-the-line, modern wastewater filtration system.

Wastewater filtration and customized problem-solving delivered excellent results in this case. It should be noted that any incident of groundwater contamination may involve multiple factors. Each situation requires individual problem-solving and systems adapted to managing contamination issues.

 

Long Term Solutions

One of the major problems in groundwater remediation is simple enough – Understanding the problems. Most people don’t understand how dangerous contaminated water can be and how much damage it can do. Best practice is to implement long-term solutions using the latest technology to completely eliminate current groundwater and future contamination.

The bottom line here is that current problems can become expensive future problems. In many industries, groundwater contamination can also be a major legal risk. The good news is that MyCelx technology is drastically improving the cost efficiency of groundwater remediation. New treatments, new filtration systems, water purification systems, ozone treatments, and other advanced technologies are making the work easier, cheaper and quicker. The results speak for themselves.

Follow this link for more information on ozone and groundwater remediation.

A pen that produces ozone to purify water

Today I found a story about a pen that produces ozone to purify water in small volumes for travelers, campers, or people in countries with poor water quality.

Read complete story HERE

 

Roving Blue's new O-Pen brings ozone purification anywhere you go
Ozone pen to purify water on the go

I have not seen this pen myself, and certainly have no valid test data, therefore I cannot testify to the effectiveness to actually produce sufficient ozone to purify water.  However, this is a fascinating product and proves the use of ozone for water treatment continues to become more mainstream.

From article:

The concept of using ozone to treat drinking water isn’t a new one, dating back to the late 1800s. The US EPA’s Drinking Water Treatability Database identifies ozone as “one of the strongest disinfectants and oxidants available in drinking water treatment,” and the US Food and Drug Administration recognizes ozone’s use for both water and food.

Ozone has tended to be used for larger applications, such as municipal drinking water systems and household purification. Roving Blue specializes in portable systems, including the MVP-A carry case kit and the all-new O-Pen, possibly the most portable ozone-based purifier out there. The Wisconsin-based company says the stainless steel pen is TSA-approved and markets it at world travellers, hikers and outdoor enthusiasts.

The O-Pen weighs just over an ounce (30 g) and purifies 16 oz (0.5L) of water in less than a minute. You simply drop the tip into the water, turn it on and let it do its thing. It bubbles while in use, providing a visual cue that clean water is on the way. In addition to taking care of all sizes of dangerous microorganisms, from tiny viruses to larger bacteria and protozoa, the O-Pen removes unpleasant tastes and odors, leaving a clean, fresh taste, one of the advantages that ozone offers over other treatment options, such as chlorine.

The O-Pen offers an estimated 30 uses per charge and recharges via USB
The ozone pen is easy to recharge on the go, with USB charger.

This demo water looked pretty clean to start, but even if it wasn't, it'd would have...
Ozone pen bubbles ozone gas into water. The bottom of the pen lays in the water to bubble ozone into the water while operating.

The O-Pen relies on bubbling ozone to free water of dangerous microorganisms
Very small bubbles created from the ozone pen.

While there are many ozone generators on the market that are small, low cost, and compact. This Ozone pen appears to be a very portable device that could work anywhere. This is certainly worth a look.

The use of ozone to treat water is not new. Ozone is used for treating drinking water, wastewater, and provide water re-use. The use of ozone is not well known. As the use of ozone gets in the hand of more consumers the use of ozone will become more accepted in more industrial applications also.

Ozone Water Treatment