Ozone Water Mixing and Contacting
Ozone is an unstable gas that is soluble in pure water in water is ).64 on a vol/vol basis at 0 degrees C, which greater
than oxygen, but less than chlorine. Ozone decomposes in water over time. At 20 C its half life is approximately 20
minutes. In order for ozone to be used in water treatment applications the ozone must be mixed with water, dissolve into
the water and have time to react with micro organisms or chemical compounds. For the purpose of disinfection, in fact,
the inactivation of micro organisms has been correlated to the concentration of ozone and the amount of contact time.
This is referred to as CT. The level of inactivation, sometimes referred to as the disinfection credit expressed as the log
reduction of the organism, is also a function of the water temperature and specific organism to be controlled. The list
below provides links to more detailed discussion on ozone mixing and contacting:
Background Information of Ozone Solubility and Stability Factors Effecting Ozone Transfer Efficiency: Transfer
efficiency is the amount of ozone dissolved into the water divided by the total amount fed to the mixing system expressed
as a percentage.
Mixing Options:
Ozone is an unstable gas that is soluble in pure water in water is ).64 on a vol/vol basis at 0 degrees C, which greater
than oxygen, but less than chlorine. Ozone decomposes in water over time. At 20 C its half life is approximately 20
minutes. In order for ozone to be used in water treatment applications the ozone must be mixed with water, dissolve into
the water and have time to react with micro organisms or chemical compounds. For the purpose of disinfection, in fact,
the inactivation of micro organisms has been correlated to the concentration of ozone and the amount of contact time.
This is referred to as CT. The level of inactivation, sometimes referred to as the disinfection credit expressed as the log
reduction of the organism, is also a function of the water temperature and specific organism to be controlled. The list
below provides links to more detailed discussion on ozone mixing and contacting:
Background Information of Ozone Solubility and Stability Factors Effecting Ozone Transfer Efficiency: Transfer
efficiency is the amount of ozone dissolved into the water divided by the total amount fed to the mixing system expressed
as a percentage.
Mixing Options:
- Fine Bubble Diffusers: Porous ceramic forms fine bubbles under pressure
- Side Stream Injection: Ozone injection with a venturi on a portion of the flow
- GasTran Ozone Injection System: Ozone and water are mixed using the shearing action of a spinning rotor.
Spartan Environmental Technologies
Air and Water Treatment
Air and Water Treatment
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Spartan Environmental
Technologies, L.L.C.
7383 Lauren J Dr
Mentor, OH 44060
USA
Phone: 800-492-1252
Fax: 440-368-3569
E-mail: info@
spartanwatertreatment.com
Technologies, L.L.C.
7383 Lauren J Dr
Mentor, OH 44060
USA
Phone: 800-492-1252
Fax: 440-368-3569
E-mail: info@
spartanwatertreatment.com