Why Doesn’t Everyone Use Ozone As An Oxidizer?

Woman drinking water from glassSo if ozone is so great, why aren’t more industries using it? Well, despite the fact that ozone is a part of nature, and that countries in Europe have been using it for water purification for over 50 years, it’s still not well-known. It’s slowly gaining more attention, although on a whole, most people are unaware of the technology. Here are some of the reasons we’ve observed over the years:

It Must be too Good to be True

Disbelief is one of the first responses we get from potential customers. Some companies may market their equipment well, but build poorly designed systems. Ozone gets a bad rap and loses creditability. With the advancement of the technology, more industry members are getting involved – And seeing results!

Expense of Equipment

“It’s too expensive…..it’s too complicated. Alternative methods are easier and cheaper.” This may of been the case years ago, but not any more. It is becoming more of a competitive market so it’s more affordable. Most systems usually have an ROI within a year.

Chemicals are Less Expensive

Sure they are, and they smell, taste awful, dry your skin, burn your eyes, nose and throat, and can adversely affect your health in the long run. And they have to be handled on site, unlike ozone… Ozone offers an environmentally-friendly and socially acceptable disinfection that does not require the storage of large volumes of hazardous chemicals.

NOTE: Ozone can be dangerous if handled incorrectly, (so can your car). You must respect the oxidative powers of ozone and treat it accordingly. There are many products on the market that can be used in connection with an ozone generator to control the off gas. It needs to noted, no one has ever died from the use of ozone. The same can not be said about ammonia, chlorine gas, hydrogen sulfide and many other common chemicals.

Ozone-treated water isn’t something new. The applications are endless and the technology continues to make incredible strides replacing low-cost chemicals for sanitation. It is safe for the environment and is GREEN. For details, go to our Earthsafe page and read more.

Ozone Regulatory Milestones
  • 1982 FDA approved for bottled water
  • 1986 CT values adopted by the EPA
  • 1996 USDA approved as a disinfectant
  • 1997 Generally Regarded As Safe (GRAS) by FDA and USDA
  • 2001 FDA approved as an antimicrobial agent on food
  • 2004 Approved USDA Nat’l Organic Program – Standard 7 C.F. R. Part 205-605

– Authored by Juli Watt, Marketing Communications, ClearWater Tech, LLC

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How Does Ozone Get Into The Water?

Ozone gas must transfer from its natural gas state into a dissolved liquid state in order to oxidize dissolved contaminants in the water. This is probably the most important step in a successful ozone system.

There are two widely used methods to get the ozone gas entrained into the water; by diffusion or venturi methods.

Most ozone gas produced ultimately off gases to the atmosphere. In order to minimize off gassing, you must keep the gas under pressure for as long as possible for mass transfer to take place.

The venturi method is by far the best method for dissolving ozone. Water traveling through a venturi will create a pressure differential. By having a suction port at that point in pressure drop allows ozone gas to be pulled into the stream, entraining that gas into solution.

The diffusion method is far simpler, yet not as efficient in transferring gas into solution. The diffusion method entails pushing ozone gas into a body of water by the use of some air compressor. By pushing air through an ozone chamber, the gas is created and continues down through tubing into the bottom of some vessel.

To increase transfer of ozone into solution, a diffuser stone is used at the end of the ozone resistant Teflon® tubing to create maximum surface area of ozone bubbles. If you send the gas directly out of the tubing without a diffuser stone, you would have larger bubbles and less contact between water and ozone. This would create more off gassing and obviously less transfer of gas into solution.

– Authored by Tim Chew, Inside Sales, ClearWater Tech, LLC

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