Ozone contactor hydraulic considerations in meeting CT disinfection requirements
Abstract
Tracer studies were performed in bench and pilot scale ozone diffusion contactors to determine actual contact times for the bench and pilot scale units and to characterize the flow pattern through these reactors. It was recognized that the flow pattern through the ozone contactors approached plug flow conditions. Due to the short circuiting and dispersion, the actual detention time in the reactors was one-half of the theoretically calculated detention time. Actual values of observed detention time were used in calculations of the CT (CT is defined as the product of the residual disinfectant concentration in mg/L and the effective contact time in minutes) values for ozone in the water. Optimization of ozone dose and contact time for CT calculations was performed in the pilot plant. Operational guidelines for the application of ozone in Union Hills pilot plant were developed based on the data obtained in the pilot plant runs.
- Authors:
-
- John Carollo Engineers, Inc., Phoenix, AZ (USA)
- OSTI Identifier:
- 5522760
- Resource Type:
- Journal Article
- Journal Name:
- Ozone: Science and Engineering (The Journal of the International Ozone Association); (United States)
- Additional Journal Information:
- Journal Volume: 12:2; Journal ID: ISSN 0191-9512
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 29 ENERGY PLANNING, POLICY AND ECONOMY; 54 ENVIRONMENTAL SCIENCES; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 01 COAL, LIGNITE, AND PEAT; CHEMICAL REACTORS; FLUID MECHANICS; GROUND WATER; OZONIZATION; WATER TREATMENT; DISINFECTANTS; OZONE; US EPA; CHEMICAL REACTIONS; GERMICIDES; HYDROGEN COMPOUNDS; MECHANICS; NATIONAL ORGANIZATIONS; OXYGEN COMPOUNDS; US ORGANIZATIONS; WATER; 290300* - Energy Planning & Policy- Environment, Health, & Safety; 540320 - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-); 320603 - Energy Conservation, Consumption, & Utilization- Municipalities & Community Systems- Public Utilities- (1980-); 010900 - Coal, Lignite, & Peat- Environmental Aspects
Citation Formats
Nieminski, E C. Ozone contactor hydraulic considerations in meeting CT disinfection requirements. United States: N. p.,
Web. doi:10.1080/01919519008552215.
Nieminski, E C. Ozone contactor hydraulic considerations in meeting CT disinfection requirements. United States. https://doi.org/10.1080/01919519008552215
Nieminski, E C. .
"Ozone contactor hydraulic considerations in meeting CT disinfection requirements". United States. https://doi.org/10.1080/01919519008552215.
@article{osti_5522760,
title = {Ozone contactor hydraulic considerations in meeting CT disinfection requirements},
author = {Nieminski, E C},
abstractNote = {Tracer studies were performed in bench and pilot scale ozone diffusion contactors to determine actual contact times for the bench and pilot scale units and to characterize the flow pattern through these reactors. It was recognized that the flow pattern through the ozone contactors approached plug flow conditions. Due to the short circuiting and dispersion, the actual detention time in the reactors was one-half of the theoretically calculated detention time. Actual values of observed detention time were used in calculations of the CT (CT is defined as the product of the residual disinfectant concentration in mg/L and the effective contact time in minutes) values for ozone in the water. Optimization of ozone dose and contact time for CT calculations was performed in the pilot plant. Operational guidelines for the application of ozone in Union Hills pilot plant were developed based on the data obtained in the pilot plant runs.},
doi = {10.1080/01919519008552215},
url = {https://www.osti.gov/biblio/5522760},
journal = {Ozone: Science and Engineering (The Journal of the International Ozone Association); (United States)},
issn = {0191-9512},
number = ,
volume = 12:2,
place = {United States},
year = {},
month = {}
}