There are many key things you want to know just before you can get an ozone generator. Before going into facts, however, it is important to note that we are talking about corona discharge kind ozone generators. These are the most important kind of commercial/industrial ozone generators. There are other kinds of ozone generators, but non corona discharge units are mainly for use in compact scale applications, making generally much less than half a pound per day or significantly less than ten grams per hour of ozone.
This article will evaluation the important selection factors and how it relates to different applications for ozone and the influence on the price of an ozone generator.
The essential factors incorporate:
1. Output: This is how a lot ozone the machine tends to make, normally quoted in grams per hour or pounds per day.
2. Concentration: Ozone can be produced at diverse 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 will have to have a supply of feed gas containing oxygen, there are 3 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 develop heat that should be removed, the choices for removing this heat are air cooling or water cooling.
Selecting the suitable mixture of features depends strongly on the application. For instance, in water remedy applications larger concentrations of ozone are utilized while in air remedy applications lower concentrations can be chosen.
Ozone Generator Output
This is the most significant element in choosing an ozone generator. The quantity of ozone required is primarily based on the application specifications. 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 particular instance, ozone is normally applied to minimize chemical oxygen demand (COD) in water. COD is measured in ppm (milligrams per liter – mg/l). It commonly takes 2 mg of ozone per mg of COD to take away the COD. So, if we had to treat 10,000 liters per hour of water containing 50 ppm of COD we would require:
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 require to dissolve 1 kg/h of ozone (or 52.eight pounds per day of ozone)
Much less than 100% of the ozone injected in the water dissolves, so we have to have to know the ozone transfer efficiency. A nicely developed venturi injection method can dissolve at least 90% of the ozone. For the case above, you would require 1 kg/h ÷ .90 = 1.11 kg/h (58.7 pounds per day of ozone). This is the quantity of ozone we would have to create at the targeted concentration to dissolve the 1 kg/h of ozone into water.
Essential: A given technique will produce significantly less ozone as the concentration of ozone increases. Ozone transfer efficiency, the price at which ozone dissolves into water increases with growing ozone concentration. Both factors will ascertain the final size of the machine required.
Determining the amount of ozone required, except for the simplest applications, calls for laboratory or pilot studies combined with an engineering evaluation to select the right balance between ozone dose, concentration and generator size. Commonly, an ozone generator business will not be capable to offer this data. If they can help, there will be an further expense for conducting the studies.
Ozone Concentration
As noted above, ozone concentration can influence each the effectiveness of ozone in a given application and the amount of ozone that can be made from a provided ozone generator. Basically, high concentration ozone expenses additional, but can do more in specific applications. Industrial corona discharge systems generate anywhere from 1 weight percent ozone to 12 weight % ozone. Gas therapy applications generally use the 1-three percent range although water remedy application commonly use 5-ten %.
power generator rentals of ozone concentration is in comparing diverse ozone generators. Makers use various bases for claiming the nominal output of an ozone generator. Normally, you have to read the fine print to see what concentration they use to claim a given production rate.
