
Maintaining Distribution System Residuals Through Booster Chlorination
James G. Uber(Author)
IWA Publishing
Published on 1. January 2004
Book
Paperback/Softback
268 pages
978-1-84339-859-2 (ISBN)
Description
The goal of this project was to discuss the potential advantages associated with booster disinfection, the kinetics of chlorine decay and trihalomethane (THM) formation under rechlorination conditions, and the use of network hydraulic and water quality models to locate booster disinfection stations and determine their dose characteristics. The following are highlights from the research: A laboratory procedure was proposed for analyzing chlorine decay under simulated booster conditions. An initial set of experiments evaluated disinfectant decay under booster conditions, and found it to be dependent on both the magnitude and time of the boost dose. THM formation under booster conditions showed no long-term reduction for any set of results, indicating THM formation is not solely dependent on disinfectant concentration. In booster chloramination, boosting with chlorine appeared to be very successful at producing and maintaining a low ammonia concentration by recombining with the ammonia formed from chloramine decay. A second-order model, including a reaction component that represents natural organic matter, was developed to describe chlorine decay and THM formation under booster conditions. A method was developed to determine good locations and schedules for multiple booster doses by a systematic evaluation of alternative designs using network models. By exploring the disinfection decay kinetics under rechlorination, and developing methods for booster chlorination systems design, the project results will assist utilities and consultants in making better use of booster disinfection as a residual maintenance approach. Originally published by AwwaRF for its subscribers in 2003
More details
Series
Language
English
Place of publication
London
United Kingdom
Target group
Professional and scholarly
Dimensions
Height: 234 mm
Width: 156 mm
Thickness: 18 mm
ISBN-13
978-1-84339-859-2 (9781843398592)
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Schweitzer Classification