Disinfection processes have often been characterized by the “CT” concept i.e., the product of disinfectant residual and contact time (perhaps as a function of pH, temperature, and other water quality variations) produces a given level of disinfection. The objective of this work was to develop and validate the use of reaction kinetic models for disinfection process design. Using bench scale (batch) kinetic information, and hydraulic characterization of pilot scale continuous disinfection processes, predictions of continuous process performance were made using a segregated flow model. These predictions were compared to independent experimental measurements of actual inactivation in pilot scale processes. Preammoniation, free residual chlorination, and ozonation were used on two waters from Portland, Oregon (US). Organisms used were Giardia muris, bacteriophage MS2, and Escherichia coli.
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Research Article|
September 01 1998
Predicting disinfection performance in continuous flow systems from batch disinfection kinetics
Charles N. Haas;
Charles N. Haas
*School of Environmental Science, Engineering and Policy, Drexel University, Philadelphia, PA 19104, USA
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Josh Joffe;
Josh Joffe
**Malcolm Pirnie, Inc., One International Boulevard, Mahwah, NJ 07495-0018, USA
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Mark Heath;
Mark Heath
***2415 NE 42nd St., Portland. OR 97213, USA
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Joseph Jacangelo;
Joseph Jacangelo
†Montgomery Watson Engineers, 560 Herndon Parkway Suite 300, Herndon, VA 22070-5240, USA
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Uma Anmangandla
Uma Anmangandla
‡PRC Environmental Management Inc., 1800 JFK Boulevard, 6th Floor, Philadelphia, PA 19103, USA
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Water Sci Technol (1998) 38 (6): 171–179.
Citation
Charles N. Haas, Josh Joffe, Mark Heath, Joseph Jacangelo, Uma Anmangandla; Predicting disinfection performance in continuous flow systems from batch disinfection kinetics. Water Sci Technol 1 September 1998; 38 (6): 171–179. doi: https://doi.org/10.2166/wst.1998.0250
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