Dynamic Modeling of Bentazon Removal by Pseudo-Moving-Bed Granular Activated Carbon Filtration Applied to Full-Scale Water Treatment
Publication: Journal of Environmental Engineering
Volume 135, Issue 4
Abstract
A model for the removal of pesticides by granular activated carbon (GAC) filtration in full-scale water treatment is presented. The model describes GAC filtration in a pseudo-moving-bed configuration, where two filters are operated in series and after breakthrough the first filter is regenerated and becomes the second filter. The influent of the second filter is changing due to gradual breakthrough of the first filter. Therefore, a dynamic model is developed based on kinetics, equilibrium, and mass balance equations. The model is calibrated and validated on data of full-scale and pilot plants. Operational strategies are evaluated of two different cases. From this study it can be concluded that a dynamic mathematical model can be successfully used to evaluate the performance and operation of full-scale GAC filters for pesticide removal and can be used for operational decision support. Data obtained from practice can be used for calibration without additional laboratory work.
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Acknowledgments
The work is facilitated by the Drinking Water Company Oasen and the writers would like to thank the personnel of the company for their valuable cooperation.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 135 • Issue 4 • April 2009
Pages: 243 - 249
Copyright
© 2009 ASCE.
History
Received: Sep 13, 2007
Accepted: Jul 31, 2008
Published online: Apr 1, 2009
Published in print: Apr 2009
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