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Disinfecting Mains with Ozonation Alternative Saves Time, Environment
Author(s) -
Dahm Bruce,
Schulz Christopher R.
Publication year - 2006
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.2006.tb02734.x
Subject(s) - mains electricity , environmental science , ozone , environmental engineering , water supply , waste management , chemistry , engineering , organic chemistry , voltage , electrical engineering
This article describes a project by Denver Water to use ozonation for water main disinfection. Over the course of the project, the disinfection efficiency of ozonation for disinfecting water mains was evaluated in laboratory, pipe‐loop, and full‐scale field trials. The utility designed and constructed a trailer‐mounted ozone system that was used first for performing pipe‐loop and full‐scale field trials, then eventually for routine disinfection of water mains in the distribution system. The article discusses the main equipment, the different approach required when using ozone, and the test results, which indicated that suspended bacteria was inactivated but inactivation of attached bacteria was significantly less effective.