1
THEORY OF OPERATION/PRODUCT DESCRIPTION CHAPTER 1
ClearWater Tech ozone systems are designed for safe, effective use in a variety of water treatment applications. The
CD1500P, and CD2000P ozone generators have been tested and certified by the Water Quality Association according to
NSF/ANSI 50. Each complete, integrated system may include the following components required for reliable, efficient
ozone production and can be divided into four general segments:
• Air preparation system • Ozone generator • Ozone injection/contacting • Ozone destruct
Air Preparation System
ClearWater Tech pressurized ozone generators require a source of clean, dry, oil-free, oxygen-enriched air for effective
ozone production. To meet that need, ClearWater Tech employs pressure swing adsorption (PSA) technology with an oil-
less compressor to increase the concentration of oxygen and reduce the moisture content in the feed gas (the air supplied
to the ozone generator). This substantially improves the output capability of the ozone generator and prevents premature
failure of key internal components. These air preparation systems deliver 90%+/-3% oxygen purity at -100°F dew point
and at very low pneumatic pressures, minimizing noise and reducing compressor wear.
If “Plant Air” feed gas is to be used in place of the ClearWater Tech air preparation system, the same air quality standards
must be met to achieve the ozone output and longevity of the ozone generator. A pounds per square inch (PSI) regulator
must be installed when using plant air feed gas. This regulator must be set to a maximum of 10 PSI.
Ozone Generator
ClearWater Tech pressurized ozone generators are designed to supply high concentrations of ozone gas (up to 10%) at 10
PSI. The oxygen feed gas produced by the air preparation system is supplied to the ozone generator, which flows through
the built-in flow meter. A stainless steel needle valve, located externally at the ozone outlet, is used to maintain optimum
pneumatic parameters inside the ozone reaction chambers. After this point the vacuum created at the ozone injector
draws
the ozone gas into the water line. The ozone generator is equipped with a pressure switch, which prevents operation if
pressure within the reaction chambers drops below 9 PSI.
As the feed gas enters the fused, thermally protected reaction chambers inside the ozone generator, some of the oxygen
molecules are split while passing through the high voltage electrical field (the “corona”), forming single oxygen atoms
(O
1
). These oxygen atoms then recombine with other oxygen molecules in the air stream, forming ozone. The modular,
multiple reaction chamber design allows the ozone generator to keep working even if one or more of the chambers
requires service.
Booster Pump Ozone Injector
Water Flow
Off Gas
Vent
Optional Destruct System
Ozone
Ball Destruct
Valve Unit
Air Ozone Generator
Preparation
Water Trap
Vacuum Break
Contact Vessel
Shown: ClearWater Tech CDCD2000P Ozone System
