There are a number of important factors you need to have to know prior to you can obtain an ozone generator. Ahead of going into facts, having said that, it is significant to note that we are speaking about corona discharge type ozone generators. These are the most essential form of industrial/industrial ozone generators. There are other varieties of ozone generators, but non corona discharge units are mostly for use in tiny scale applications, producing generally less than half a pound per day or much less than ten grams per hour of ozone.

This short article will critique the essential selection elements and how it relates to different applications for ozone and the influence on the expense of an ozone generator.

The essential elements consist of:

1. Output: This is how much ozone the machine makes, typically quoted in grams per hour or pounds per day.

two. Concentration: Ozone can be produced at various concentrations ranging from 1-12 weight percent. The concentration of ozone has an effect on most applications and also affects machine output.

three. Gas Feed: you ought to have a supply of feed gas containing oxygen, there are three options: dry air, oxygen concentrated from air or purchased oxygen (either as liquid oxygen (LOX) or compressed oxygen in cylinders).

four. Generator Cooling: Ozone generator generate heat that ought to be removed, the options for removing this heat are air cooling or water cooling.

Selecting the correct combination of capabilities depends strongly on the application. For instance, in water treatment applications higher concentrations of ozone are applied although in air treatment applications reduced concentrations can be chosen.

Ozone Generator Output

This is the most crucial aspect in selecting an ozone generator. The amount of ozone required is primarily based on the application needs. If the ozone is becoming employed for removal of organic contaminants from water, the quantity of ozone is proportional to the quantity of organic in the water, the efficiency of the ozone organic reaction and the efficiency of dissolving the ozone into the water.

As a specific instance, ozone is typically utilized to lower chemical oxygen demand (COD) in water. COD is measured in ppm (milligrams per liter – mg/l). It normally requires two mg of ozone per mg of COD to remove the COD. So, if we had to treat ten,000 liters per hour of water containing 50 ppm of COD we would will need:

10,000 liters/hour X 50 mg/l COD x two mg Ozone/mg COD = 1,000,000 mg/hour

1,000,000 mg/hour = 1,000 g/hour = 1 kg/hour

So, we would need to dissolve 1 kg/h of ozone (or 52.eight pounds per day of ozone)

Much less than one hundred% of the ozone injected in the water dissolves, so we want to know the ozone transfer efficiency. A well developed venturi injection method can dissolve at least 90% of the ozone. For the case above, you would want 1 kg/h ÷ .90 = 1.11 kg/h (58.7 pounds per day of ozone). This is the amount of ozone we would have to produce at the targeted concentration to dissolve the 1 kg/h of ozone into water.

Significant: A given method will produce much less ozone as the concentration of ozone increases. Ozone transfer efficiency, the price at which ozone dissolves into water increases with growing ozone concentration. Each factors will ascertain the final size of the machine essential.

Figuring out the amount of ozone necessary, except for the simplest applications, needs laboratory or pilot studies combined with an engineering evaluation to pick the right balance amongst ozone dose, concentration and generator size. Generally, an ozone generator organization will not be capable to supply this information. If power generator rentals can help, there will be an more cost for conducting the studies.

Ozone Concentration

As noted above, ozone concentration can have an effect on both the effectiveness of ozone in a given application and the amount of ozone that can be produced from a offered ozone generator. Basically, higher concentration ozone charges extra, but can do a lot more in specific applications. Industrial corona discharge systems generate anywhere from 1 weight % ozone to 12 weight % ozone. Gas remedy applications commonly use the 1-three percent range though water therapy application typically use 5-ten %.

An significant aspect of ozone concentration is in comparing distinct ozone generators. Manufacturers use distinct bases for claiming the nominal output of an ozone generator. Commonly, you have to study the fine print to see what concentration they use to claim a offered production price.