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.

 

 

Ozone equipment service and repair

Do you have ozone equipment in need of repair?  We can help, we want to help.  We service all types of ozone equipment, and not just the ozone generator, we also service the oxygen concentrator, compressor, and ozone monitors.  

Whatever your need we have the tools, experience, and ability to help you keep your current ozone system running at peak performance.  We have experience with most ozone generators manufactured and have the tools necessary to keep you running, or get you back up and running fast.

 

We Offer:

On-Site Service

Oxidation Tech provides on-site service, preventative maintenance, and repairs of Ozone Generators and equipment.  Oxidation Tech has the experience, tools, and parts to keep your Ozone Generator and associated equipment running and operational for the long term with minimal downtime.

 

Ozone System Preventative Maintenance

Maintenance is an important part of any mechanical system.  Ozone systems are no different.  Oxidation Tech has the experience and manpower to assist you with your ozone system maintenance.  Whether you desire maintenance parts and advice, or a comprehensive maintenance contract we can satisfy your needs.

Click HERE to be directed to our ozone system maintenance web page.

 

 

In-House Repair– Industrial Ozone Generator

Oxidation Tech can repair nearly all Industrial Ozone Generators back to original specifications. Many Ozone Generators have been built/integrated by ozone companies that either no longer exist, or offer no repair services. In these cases, we are able to help. We will repair many obsolete Ozone Generators from manufacturers that do and do not exist today. Of course, we would also be glad to repair any current models of Ozone Generator. Our experience and knowledge allow us to repair your Ozone Generator in a timely manner at a very competitive cost.

Many Ozone Generators today use the same internal components provided by only a handful of manufacturers. There are relatively few Ozone Generators that are manufactured from completely exclusive components. Therefore, repairs of many brands of Ozone Generators use the same internal components. Also, there are now aftermarket parts available to replace the commonly used components in many Ozone Generators. So, before you give up on that older Ozone Generator, or are told your Ozone Generator is obsolete, give us a call!

Our on-site repair labor rates for Industrial Ozone Generators = $75/hour.

We do not charge a fee for diagnostics of your Ozone Generator. We will diagnose the repair and quote a repair price for your Ozone Generator at no cost. If you decide not to repair the Ozone Generator we will only charge for return shipping of your equipment.

 

 

In-House Repair– Commercial (air blower style) Ozone Generator

Ozone is very commonly used for air treatment in many applications. Many manufacturers, large and small, have produced Ozone Generators for air treatment that blow ambient air over a UV lamp, or corona discharge element to produce ozone from the ambient air in a room. We refer to these type of units as commercial, or air blower style Ozone Generators.

We stock many aftermarket and original OEM repair parts for these Commercial Ozone Generators. The components used are frequently interchangeable between units; therefore repair costs are frequently low.

If you have a Commercial Ozone Generator in need of repair, give us a call. We would be glad to diagnose and quote a repair cost of your Ozone Generator.

Our in-house repair labor rates for Commercial Ozone Generators = $65/hour.

We do not charge a fee for diagnostics of your Ozone Generator. We will diagnose the repair and quote a repair price of your Ozone Generator at no cost. If you decide not to repair the Ozone Generator we will only charge for return shipping.

 

Ozone Monitor calibration and repair

Ozone monitors is our specialty. We offer repair, calibration, and even rental of Ozone Monitors for most every application.

Many Ozone Monitors can be supplied with a replaceable pre-calibrated sensor chip. This means calibration is as simple as ordering a replacement sensor, and swapping it out on-site yourself. This can normally be done in less than 10 minutes.

Ozone Monitors that require calibration can be shipped to us for calibration. We offer calibration for most every Ozone Monitor and UV analyzer. Our rates are below:

  • Ozone Monitor calibration = $150
  • UV Analyzer calibration = $300

 

List of common industrial ozone generator brands we have repaired:

  • Ozonia
  • Wedeco
  • Plasma Technics (PTI)
  • Azcozon
  • Absolute Ozone
  • Hess Machine
  • Pacific Ozone
  • Clearwater Tech
  • Del Ozone
  • Welsbach
  • Polymetric
  • Ozotech
  • Enaly

Your ozone generator not on the list? Give us a call, it likely uses parts manufactured by one of the companies on the list above.

Ozone equipment service and repair

 

 

Online Ozone Calculators

Looking to calculate ozone output, convert ozone units?  We have a full series of online ozone calculators to make your job simple.  See list below for full list of options.

Ozone Calculators

Online Calculators

– O3 Dosage rate into water
– O3 Generator output % 
– O3 Generator output g/m3
– O3 Generator output CFM
– Convert common O3 units
– Convert Common flow-rates 
– Pressure on flow-meter 
– All online calculators
– Units of measure defined
– List of Ozone Calculations

Are there other calculations that you commonly perform?  We would be glad to help and create other online calculators to make your life simpler.

Also, should you find any issues or problems using these calculators please let us know.  We hope you find these as useful as we have.

 

Simple ozone system for well water treatment

Ozone offers one of the best options for treating well water cost effectively and reliably.  No added chemicals or salts are required, ozone reverts to oxygen and is perfectly safe for drinking.

We have developed a simple ozone system for treatment of small to medium residential and agricultural well water systems.  Common water quality issues can be resolved without chemicals or adding salt.  This will save you money, and provide safer, and better quality water for you, your family, and your livestock.

 

Ozone is commonly used for the following:

 

New systems are now available from Oxidation Tech, the WT-series ozone systems.  We offer these systems in 2, 4, and 10 g/hr varieties.  All equipment for install is supplied in a kit that can be installed by a handy person who enjoys DIY projects.

 

Well water treatment system with ozone
WT-4 Ozone System

 

Complete System Includes:

 

Systems are easy to install and very simple to operate.  No human oversight is necessary beyond monthly checks to ensure the system is operational.  No salt to add, no chemicals to purchase.

 

Treat well water with ozone
Diagram of WT-4 Ozone Well Water system

 

These systems are offered in various sizes.  We would be glad to help you determine, based on water quality, what size system with what options may be necessary.  Should you have any questions feel free to call our office.

 

 

 

Information on well water treatment with ozone.

 

 

Choosing an ozone generator – g/hr vs g/m3

When choosing an ozone generator there are many metrics and numbers used to rate ozone generators.  Each of these terms is important, but which is most important for your specific ozone application?  

The two most common metrics are ozone output, normally measured in g/hr, or ozone concentration, normally measured in g/m3 or % by weight.

ozone output vs ozone concentration
Ozone performance chart

Every ozone application is different. And based on your application the concentration or overall output of ozone production is more or less relevant.

Ozone Output:

Normally measured in g/hr or lb/day

The ozone output value is shown in a mass over time value that indicates mass of ozone produced in a given period of time. As flow rate of feed-gas through the ozone generator increases, however, the concentration of ozone decreases. This is a trade-off that exists across the entire flow-range of ozone feed-gas through most ozone generators.

Ozone Concentration:

Normally measured in g/m3 or % by weight

Ozone concentration is the ratio of total feed-gas to ozone production. As flow rate of feed-gas through an ozone generator decreases, ozone concentration increases. As flow increases less of the oxygen in the feed-gas is converted into ozone as the contact time for the feed-gas in the ozone generator decreases, there is less time to produce ozone out of the given volume of gas.

Ozone Applications:

water Treatment:

When ozone is used to be dissolved into water ozone solubility becomes important. Solubility is the ratio of ozone gas that will dissolve into water based on physical conditions.

Link to ozone solubility

As ozone concentration increases the solubility of ozone into water increases. Therefore, ozone output in g/hr becomes less relevant when dissolving ozone into water. Higher ozone dosages into water will require higher ozone concentration to achieve solubility into water. Overall ozone production is necessary to achieve desired ozone dosage rate, however, if ozone concentration at that production rate is very low, ozone gas will never dissolve into the water and be lost.

There is a balance to ozone concentration vs ozone output when using ozone for water treatment. A simple rule of thumb, if you have the choice to use an ozone generation system that provides the same ozone output in g/hr but at a higher ozone concentration, choose the higher ozone concentration every time.

Air Treatment:

There are ozone applications where ozone is used in air treatment only. Odor removal, food storage, etc. In these applications, ozone concentration is much less important. Ozone output in g/hr is the only factor that is relevant in most of these applications. More ozone mass will provide more ozone dosage into the air.

Consider oxygen or air consumption along with power consumption in these applications.

Groundwater Remediation:

Ozone used for in-situ groundwater remediation is normally diluted with air, to increase the radius of influence of the ozone gas in the water table.  Due to this dilution ozone concentration is not a major factor in this application.  Ozone output is the only major factor considered in this application.

Cooling Towers:

Ozone is used for cooling tower treatment as a biocide in the cooling tower.  In these applications, very low ozone dosage rates are used in the water.  Therefore ozone concentration is not as important in many of these applications as ozone solubility is not as critical.

Ozone Generator Information:

-O3 Generator buyers Guide

-How is ozone Produced?

-O3 from Corona Discharge

-O3 production from UV Light

How to test O3 production?

-O3 Gen Performance Terms

-O3 Gen Performance Chart

-How to read performance chart?

-Ozone Output vs Concentration

 

 

Build your ozone ozone trailer with our new Modular Ozone System

Ozone trailers made easy.  

Ozone trailer systems are commonly used for groundwater remediation, grain treatment, and a few other ozone applications.  In some cases, an existing equipment trailer can benefit from the addition of ozone, in other cases the logistics of shipping a large trailer is cost prohibitive.  Whatever the reason, we have the solution.

Our new Modular Ozone Systems are a complete kit that can be installed inside our customer’s trailer, cargo container, shed, or existing structure.  Only minor assembly is required on-site before operation.

Ozone system for ozone trailer or cargo container
Modular Ozone System

The ozone generator, control system, and manifold are all assembled in one enclosure.  The oxygen concentrator, oxygen storage tank, and air compressor are all supplied separate, but are each turn-key components.  Only electrical connections and basic plumbing is required for assembly.

Complete ozone system for in-situ groundwater remediation
Modular Ozone System Diagram

This entire system can be shipped at a very low cost, and installed in any configuration that fits the customers best.  By supplying a modular ozone system a great deal of flexibility is opened up for the customer.  Also, future expansion and modifications are simple.

All our modular ozone system are configured with a touch-screen HMI screen for complete control of the system.  This allows for full control of the system via your PC, tablet, or smartphone with our telemetry package.

Ozone remediation system brochure
ORK-Series Brochure

Questions on what we can provide for you?  Please contact our office, we would be happy to discuss your application with you.

Buyers Guide – Choosing the right ozone generator

Choosing the right ozone generator for your application is a daunting task.  This guide is meant to help dispell the myths and give you the information you need to make the right decision.

Read the entire article HERE

 Ozone from spark

Dry air vs Oxygen feed-gas:

Ozone can be produced from either oxygen or dry-air feed-gas. Ozone is produced more efficiently from oxygen than air as there is more oxygen to produce ozone from. Most ozone generators produce 2 – 3x more ozone from oxygen than from air. However, producing oxygen requires a great deal of energy. Therefore, review ozone generator options, oxygen source options, and dry-air options to ensure the most cost effective and energy efficient option for long-term operation.

When ozone is used for water treatment it is almost always more efficient to produce ozone from oxygen due to the increased ozone concentration and increased solubility of ozone into water.

Ozone generators producing ozone from air will be exposed to more potential for contamination of the ozone generating cell and may require more maintenance than ozone generated from oxygen.

If using an oxygen concentrator factor the maintenance costs of the oxygen concentrator or air compressor in your system operational costs.

 

Air cooled vs Water cooled corona cell:

Converting oxygen to ozone requires an energy transfer. This energy transfer will produce heat as a by-product. This heat must be removed from the ozone generator either with fans for air-cooling, water for water cooling, or both. Most small ozone generators are air cooled, most large ozone generators are water cooled.

Air cooled ozone generators are simple and require less overall system components. Therefore, air cooled ozone generators are commonly used for small to mid-sized ozone applications.

As the scale of ozone production increases the heat-load increases, therefore large ozone generators are all water cooled as air cooling would not be a reasonable option.

Air cooled ozone generators will typically run warmer than water cooled ozone generators and produce ozone less efficiently. Therefore, lower ozone concentrations are typical, along with higher feed-gas flows required.

Water cooled ozone generators require cooling water passing near high voltages used for ozone production. This can be a safety hazard in some locations, most notably dirty environments where air quality is poor and dirt may build-up on the ozone generator components.

UV vs Corona Discharge vs Electrolytic:

Ozone can be produced via UV light, corona discharge, or electrolytic. Click link below for more details on how these methods work. Overview listed here.

LINK TO OZONE PRODUCTION

UV Ozone Generators

Ozone is produced from air at very low concentrations. UV light cannot produce ozone at higher concentrations than about 1% by weight, and most are far below that. A UV ozone generator is a great option for high flow – low concentration ozone applications. Air treatment applications commonly use UV ozone generators with great success. Due to the low concentration of ozone production UV ozone generators are not applicable for many water treatment application. Also, UV ozone generators are not cost effective at ozone production rates greater than about 10 g/hr.

Corona Discharge Ozone Generators

Most every industrial ozone generator uses corona discharge to produce ozone. Ozone can be produced at up to 20% by weight with no limit to ozone production. Ozone is produced from oxygen or dry-air, if air is used it must be dry duet to by-product creation in the ozone generation process.

Electrolytic Ozone Generators

Ozone is produced electrolytically directly within water, this eliminates the need for gas to liquid contacting equipment used for UV or Corona Discharge ozone generators. Water must be very clean for electrolytic ozone production due to contamination and break-down of the anode and cathode used for this method.

 

Read the entire article HERE

Other helpful links below

– How is ozone Produced?

– O3 from Corona Discharge

– O3 production from UV Light

– How to test O3 production?

– O3 Gen Performance Terms

– O3 Gen Performance Chart

– How to read performance chart?

– Ozone Output vs Concentration