Ozone Generator

Different Technique	Types	Applications
Buying Tips

Ozone generators produce high quality ozone based on compounds of elemental oxygen. Ozone, also referred by its chemical symbol O3, is a highly flammable and unstable molecule produced by a cold plasma device, coronal discharge, or concentrations of ultraviolet light. Ozone as a gas has emerged as an oxidant of choice for many air and water applications. Ozone generators are most often used to remove pathogens, chemicals and metabolites from food, air, water, chemicals, and metals.

Ozone generators range from small, portable sized, big enough to attach to the water tap for a household sink or large enough for gas plants and nuclear power plants. Effective in air and water treatment usages, the ozone generators are widely used removing odors in air and water. Ozone generators are therefore very useful equipment in many situations around the home and in industrial and commercial settings as well.


Different Techniques on The Working of the Ozone Generators
Ozone generators generate ozone molecules by using one of the methods given below:

Corona Discharge Method
This is the most popular type of ozone generator. It is a highly recommended generator for most industrial and personal uses. This type of generator usually works by means of a corona discharge tube. A very cost-effective generator, it does not need an oxygen source other than the ambient air. Nitrogen oxides are also produced as a by-product. Use of an air dryer can reduce nitric acid production which is done by removing water vapor and this increases ozone production. An oxygen concentrator can also be used to further increase the ozone production.
Ultraviolet Light
UV ozone generators make use of a light source that produces the same narrow-band ultraviolet light which is required for the sustenance of the ozone layer in the Earth's stratosphere. While standard UV ozone generators are economical, they usually produce ozone with about 2% concentration or lower. Another disadvantage of the UV generator is that it requires the air to be exposed to the UV source for a long period of time, and any air that is not exposed to this source will not be treated for ozone production. This makes the generator impractical to be used in situations that deals with fast moving air or water streams.

Cold Plasma
In the cold plasma method, pure oxygen gas created by dielectric barrier discharge is exposed to a plasma. The diatomic oxygen is divided into single atoms, which then combines in triplets to form ozone. Pure oxygen is used as input source in cold plasma generators and produce about 5% ozone. Compared to the other two methods, these generators produce much greater quantities of ozone in a given time but they are expensive generators.

Electric Discharge
Ozone may be formed from oxygen by electrical discharges and high energy electromagnetic radiation, which is considered to be a practical method of large-scale ozone production. Certain electrical tools, which uses high voltages, like laser printers, ionic air purifiers, photocopiers, and arc welders generate very high levels of ozone. Similarly, electric motors using brushes can produce ozone from repeated sparking inside the unit. Large motors making use of brushes, like those that are used by elevators or hydraulic pumps, will also produce more ozone than smaller motors.

Laboratory Production
Laboratory ozone generators are specially designed generators that produce laboratory ozone. The ozone is produced by the method of electrolysis using a pencil graphite rod cathode, a 9 volt battery, a platinum wire anode and a 3M sulfuric acid electrolyte.

Types of Ozone Generators
Depending on the applications, there are different types of ozone generators like:

• Pool Ozone Generator
• Spa Ozone Generator
• Water Ozone Generator
• Industrial Ozone Generator
• Negative Ion Ozone Generator
• Ozonator

Applications of Ozone Generators

Gas plants Waste water treatment Control household odors Control indoor air pollution Cigarette & cigar smoke elimination Mold control & removal Cooling towers Hotel / motel room odor removal Controlling pet and animal odors

Vehicle restorations Controlling insects and vermin Fire restorations Portable water disinfection Greenhouse and hydroponics Food processing Aquaculture Pharmaceutical Soil Remediation

Buying tips
Specifications to consider are as follows:

Oxygen feed gas flow Ozone production Ozone concentration Dry air feed gas flow Maximum pressure Variable control Power consumption

Power supply Air cooling Feed gas inlet connection Ozone outlet connection Power requirement