There are quite a few key points you want to know before you can purchase an ozone generator. Just before going into particulars, even so, it is vital to note that we are speaking about corona discharge variety ozone generators. These are the most vital form of commercial/industrial ozone generators. There are other forms of ozone generators, but non corona discharge units are mainly for use in smaller scale applications, generating commonly less than half a pound per day or significantly less than 10 grams per hour of ozone.
This report will review the important selection aspects and how it relates to various applications for ozone and the impact on the price of an ozone generator.
The essential things involve:
1. Output: This is how a great deal ozone the machine tends to make, normally quoted in grams per hour or pounds per day.
two. Concentration: Ozone can be made at distinct concentrations ranging from 1-12 weight %. The concentration of ozone has an impact on most applications and also impacts machine output.
3. Gas Feed: you need to have a source of feed gas containing oxygen, there are three alternatives: dry air, oxygen concentrated from air or bought oxygen (either as liquid oxygen (LOX) or compressed oxygen in cylinders).
4. Generator Cooling: Ozone generator make heat that will have to be removed, the choices for removing this heat are air cooling or water cooling.
Choosing the appropriate mixture of attributes depends strongly on the application. For example, in water therapy applications higher concentrations of ozone are employed whilst in air therapy applications lower concentrations can be selected.
Ozone Generator Output
This is the most significant issue in deciding on an ozone generator. The amount of ozone essential is based on the application requirements. If the ozone is becoming applied for removal of organic contaminants from water, the quantity of ozone is proportional to the amount of organic in the water, the efficiency of the ozone organic reaction and the efficiency of dissolving the ozone into the water.
As a precise instance, ozone is frequently made use of to lower chemical oxygen demand (COD) in water. COD is measured in ppm (milligrams per liter – mg/l). It normally takes two mg of ozone per mg of COD to eliminate the COD. So, if we had to treat ten,000 liters per hour of water containing 50 ppm of COD we would need to have:
ten,000 liters/hour X 50 mg/l COD x 2 mg Ozone/mg COD = 1,000,000 mg/hour
1,000,000 mg/hour = 1,000 g/hour = 1 kg/hour
So, we would have to have to dissolve 1 kg/h of ozone (or 52.eight pounds per day of ozone)
Significantly less than 100% of the ozone injected in the water dissolves, so we require to know the ozone transfer efficiency. A nicely designed venturi injection program can dissolve at least 90% of the ozone. For the case above, you would need to have 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 make at the targeted concentration to dissolve the 1 kg/h of ozone into water.
Essential: A given program will produce less ozone as the concentration of ozone increases. Ozone transfer efficiency, the price at which ozone dissolves into water increases with increasing ozone concentration. Both factors will ascertain the final size of the machine necessary.
Figuring out the quantity of ozone expected, except for the simplest applications, needs laboratory or pilot research combined with an engineering evaluation to choose the proper balance among ozone dose, concentration and generator size. Usually, an ozone generator business will not be able to supply this information and facts. If they can aid, there will be an added price for conducting the research.
Ozone Concentration
As noted above, ozone concentration can impact each the effectiveness of ozone in a provided application and the amount of ozone that can be made from a offered ozone generator. Essentially, higher concentration ozone charges extra, but can do much more in particular applications. Commercial corona discharge systems generate anywhere from 1 weight % ozone to 12 weight percent ozone. Gas treatment applications normally use the 1-3 % variety although water remedy application generally use five-10 percent.
An critical aspect of ozone concentration is in comparing unique ozone generators. sf bay area power generators rental use distinctive bases for claiming the nominal output of an ozone generator. Typically, you have to read the fine print to see what concentration they use to claim a offered production rate.