Abstract
Empirical modeling accurately predicts the benefits of enhanced coagulation in an investigation at full scale.Use of enhanced coagulation to improve disinfection capabilities (C X T) of a postsedimentation ozonation system was investigated at full scale at the Mannheim Water Treatment Plant in Kitchener, Ont. Multiple linear regression was used to assess the effects of different water quality, environmental, and engineered parameters on the average ozone (O3) concentration (Cavg) in the O3 contactor. It was found that Cavg was significantly affected by the transferred O3 dose, the settled water pH, the settled water nonpurgeable organic carbon concentration, the flow rate, and the water temperature. For the specific water tested, model predictions indicated that operation of the plant under enhanced coagulation conditions could substantially improve the disinfection capacity of the ozone system, compared with conventional coagulation. Modeling results also showed that the effect of flow rate (i.e., contact time) on C X T depended on the rate of O3 decay. For rapid O3 decay conditions, models predicted an increase in calculated C X T with increasing flow rate (i.e., decreased contact time).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
