industrial ozone generator for industrial aircondition cooling water treatment
|
Product Name |
ozone generator |
application |
water treatment |
|
ozone output |
30g/hr |
drinking water flow | 3000-6000 l/hr |
|
air flow |
5L/min |
cooling way |
water cooled , 0.3-0.8m3/hr |
|
ozone concentration |
80-100mg/l |
timer |
programmed timer |
|
size |
50*40*130cm |
warranty |
1 year |
Application
Ozone for Cooling Tower Water Treatment
The use of ozone in cooling tower treatment has received a great deal of attention in recent years. In the prevention and control
of legionnaires disease (legionella) causing microbes, ozone has taken an eminent roll. The specific characteristics of the
disinfectant make sure ozone gets the job done where others fail
There are additional specific characteristics that give ozone a great deal of appeal to cooling tower users. They include:
Minimal on-site chemical inventory
With the advent of SARA Title III and other legislation, the storage and handling of chemicals in general, and biocidal agents in
particular, is more regulated and difficult. Since ozone is generated as it is used, these concerns are minimized.
Little or no toxicant discharge
The Clean Water Act and state and local regulation are placing increased pressure on cooling tower discharge into receiving
streams. The high toxicity of ozone in water solution makes it an effective biocide. However, its rapid decomposition minimizes
any downstream toxicity concerns. The by-products of ozonation of cooling tower water have not yet been subjected to the same
scrutiny as have the by-products of halogen application, and are consequently not as stringently regulated.
The potential of water conservation
Numerous case histories of the use of ozone in “zero discharge” cooling tower applications have been published. In water-short
parts of the world, this carries an obvious appeal.
Advantages of Ozone Application in Cooling Tower Water
1. Safe and easy in use
2. Low maintenance costs
3. Ozone is produced on-site and requires no storage of dangerous chemicals
4. Ozone requires no additional disinfectants
5. No cocktail of disinfectants necessary. Micro-organism can not get resistant to ozone after prolonged use of ozone.
6. High efficiency as disinfectant. A residual ozone concentration of 0.1 to 0.2t ppm is in most cases very effective in keeping
the cooling tower and the cooling circuit clean.
7. Very effective in removing biofilms
8. Higher efficiency of heat exchangers due to reduced biofilm formation.
9. Due to good biofilm removal capacities very effective against Legionella.
10. No chlorinated compounds. Very low corrosion rates in the system.
11. No persistent chemicals or disinfectants in bleed. Ozone breaks down to oxygen.
12. In some cases ozone can replace disinfectants and also dispergents and inhibitors.
13. In many cases a higher concentration factor is possible.
14. Lower operational costs and in many cases a lower overall costs.
15. Ozone is effective in a wide pH range.
16. Also effective for mussel growth.
Additional Benefits of Ozone Application in Cooling Tower Water
Scale and biological deposits reduce the ability of refrigerant condensers and industrial
process heat exchangers to transfer heat. By inhibiting or removing biological deposits (with an associated displacement of scale)
more effectively than chemical treatment, ozone cooling tower water treatment will improve the performance of the cooling system.
Case studies have shown ranges from no improvement in efficiency to a 20% improvement in performance of chilled water systems.
Energy savings should be estimated for each individual application, based on the actual operating condition of the condenser or
heat exchanger and the type of fouling present.
