Ozonation system for treatment of water in cooling towers
An apparatus is described for controlling the condition of cooling tower system water, comprising one or more ozone generator electrodes having inner and outer concentric electrode tubes, a concentric dielectric tube there between creating an annular space between said dielectric tube and outer electrode tube for the passage of oxygen-containing air for conversion of a portion of said oxygen to ozone and first and second opposed end caps for supporting said electrode tubes and dielectric tube in a concentric orientation and for the entry of air into and exit of ozone-containing air from said annular space; means for providing dry, filtered input air at a depressed dewpoint and at constant flow rate to the first end caps of said electrodes; sensor means for determining the oxidation-reduction potential of a water sample obtained from the system; means coupled to said sensor means and to said ozone generator electrodes for maintaining the oxidation-reduction potential of said cooling tower system water at a target level in the range of about 550 to 6,750 mv by comparing the determined oxidation-reduction potential with said target value and controlling the production of ozone in response thereto to allow the generation and maintenance of containment oxidation by-product secondary biocides at an elevated level; means for combining the ozone produced by said electrodes with a portion of said cooling tower system water for return of resulting ozonated water to the system for introduction of the ozone thereto; and means for monitoring the flow of said input air and the output of said electrodes whereby an alarm condition is indicated if said flow or output depart from established parameters.
- Assignee:
- Reztek International, Inc., Mountaindale, NY (United States)
- Patent Number(s):
- US 5236673; A
- Application Number:
- PPN: US 7-685544
- OSTI ID:
- 6221343
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200201* -- Fossil-Fueled Power Plants-- Waste Management-- Thermal Effluents
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
AIR
ALARM SYSTEMS
ANNULAR SPACE
AUTOMATION
CHEMICAL REACTIONS
CHEMISTRY
CONFIGURATION
COOLING TOWERS
ELECTRODES
FLUIDS
GAS GENERATORS
GASES
OZONE
OZONIZATION
REDOX POTENTIAL
SPACE
SYNTHESIS
WATER CHEMISTRY
WATER TREATMENT