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Ozone Use in Cooling Towers | |||||||||||||||||||||||||||||||||||
| 3,125 times more germicidal than chlorine | |
| eliminates the use of chemicals except for pH balancing | |
| ends discharge liabilities and chemical storage record keeping | |
| destroys all types of microorganisms instantly | |
| minimizes condenser fouling | |
| decomposes organic waste by oxidation | |
| removes existing calcium carbonate scale by destroying the biomass glue bonding agent | |
| low maintenance costs | |
| the most environmentally friendly oxidant | |
| no persistent chemicals or disinfectants in bleed - ozone breaks down to oxygen | |
| reduces the corrosion rate of metals, including copper heat exchangers | |
| saves on energy costs by increasing the heat transfer efficiency of the chiller |
| Reducing makeup water to the cooling tower by permitting more cycles between blowdowns. | |
| Eliminating the cost and problems in ordering, shipping, handling, storage, and disposal of regular chemicals. | |
| Reducing power consumption by keeping the chiller heat transfer efficiency high through cleaner condenser tubes. |
* Studies by Southern California Edison (SCE), NASA, Jet Propulsion Laboratory (JPL), and IBM have confirmed that ozonation is a viable alternative to multi-chemical treatment. Electricity savings of 20% or more were cited by SCE.
Ozone Use at the Kennedy Space Center Cooling Tower (PDF - 115K)
Marley Cooling Towers and Ozone (PDF - 323K)
Ozonation of Cooling Towers and Corrosion Rates (PDF - 197K)
Cooling Tower Maintenance Improves with Ozone
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