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Hydrodynamic Modeling of a Surface Water Treatment Pilot Plant

Authors: C.-M. Militaru, A. Pǎcalǎ, I. Vlaicu, K. Bodor, G.-A. Dumitrel, T. Todinca


A mathematical model for the hydrodynamics of a surface water treatment pilot plant was developed and validated by the determination of the residence time distribution (RTD) for the main equipments of the unit. The well known models of ideal/real mixing, ideal displacement (plug flow) and (one-dimensional axial) dispersion model were combined in order to identify the structure that gives the best fitting of the experimental data for each equipment of the pilot plant. RTD experimental results have shown that pilot plant hydrodynamics can be quite well approximated by a combination of simple mathematical models, structure which is suitable for engineering applications. Validated hydrodynamic models will be further used in the evaluation and selection of the most suitable coagulation-flocculation reagents, optimum operating conditions (injection point, reaction times, etc.), in order to improve the quality of the drinking water.

Keywords: drinking water, hydrodynamic modeling, pilot plant, residence time distribution, surface water.

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[1] L. C. Rietveld, Improving operation of drinking water treatment through modeling, Delft University of Technology, Dissertation, 2005.
[2] T. Pröll, T. Todinca, M. ┼×uta, A. Friedl, "Acid gas absorption in trickle flow columns-Modeling of the residence time distribution of a pilot plant--, Chem. Eng. and Prog., vol. 46, pp. 262-270, 2007.
[3] K. Bodor, Contributions to the improvement of drinking water quality indicators by means of new reagents and new technologies, Timisoara, Romania, PhD thesis (Romanian), 2005.
[4] E. B. Nauman, Chemical reactor design, optimization and scaleup, New-York:McGRAW-HILL, 2002, pp.539-577.
[5] G. I. M. Worm, G. A. M. Mesman, K. M. van Schagen, K. J. Borger, L. C. Rietveld, ÔÇÿ-Hydraulic modeling of drinking water treatment plant operations--, Drink. Water Eng. Sci., vol. 2, pp.15-20, 2009.
[6] T. Todinca, M. Geantâ, Modeling and simulation of chemical processes. Applications in MATLAB, Timi┼ƒoara: Politehnica House, 1999, ch. 2.
[7] P. R. Lopez, A. G. Lavin, M. M. Lopez, J. Bueno de las Heras, "Flow models for rectangular sedimentation tanks", Chem. Eng. and Prog., vol. 47, pp. 1705-1716, 2008.