Ozonation has recently gained popularity as a treatment alternative in the United States after regulatory agencies placed restrictions on the disinfection by-products, especially levels of tri-halomethane (THM).
Ozonation is an established and proven disinfection alternative as well as a peroxidant for the control of THM precursors. It also has the benefits of:
Oxidation and volatilization of organics
Control of algae and associated compounds
Destabilization (microflocculation) of certain types of turbidity
Removal of color-causing compounds
Oxidation of iron and manganese
Very short disinfection times
Partial oxidation of organics for subsequent removal by microorganisms.
Ozone Generator Selection
Ozone is generated by passing a high voltage alternating current (6-20 kV) across a dielectric discharge gap through which oxygen gas is injected. Setting aside the sales pitches from manufacturers, most practical generators are either low (50-60 Hz) or medium (200-1000 Hz) frequency. Medium frequency generators are generally considered better performers. It is often helpful to contact Pure Aqua in similar applications to finalize the selection of an ozone generator.