Storage Tank Management to Improve Drinking Water Quality: Case Study
Publication: Journal of Water Resources Planning and Management
Volume 126, Issue 4
Abstract
The very marked chlorine decay measured in one section of the distribution system of a large North American city and the fluctuations in this decay were studied. The results obtained from operational data collection, flow measurements, and EPANET hydraulic modeling demonstrate that low chlorine residuals in this particular distribution system section cannot be attributed to any exceptional consumption by corrosion particles, loose deposits, or biofilms. On the contrary, the hydraulic configuration of this distribution system area (tank design and pumping cycles) results in such high residence times in one tank (5.6–7.9 days) that the low chlorine residuals observed are self-explanatory. Detailed analysis of the results indicates that the principles of hydraulic (dys)function in this zone are well described by the model, which can be relied upon to compute and compare several design or operational solutions to minimize residence times. Two of these solutions were field tested and were found to be equally efficient in diminishing the age of water. As a consequence, detectable chlorine residuals were restored in the area.
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References
1.
Amblard, C., Bourdier, G., Carrias, J. F., Maurin, N., and Quiblier, C. (1996). “Seasonal evolution of microbial community structure in a drinking water reservoir.” Water Res., 30(3), 613–624 (in French).
2.
Biswas, P., Lu, C., and Clark, R. M. (1993). “A model for chlorine concentration decay in pipes.” Water Res., 27(12), 1715–1724.
3.
Boccelli, D. L., Tryby, M. E., Uber, J. G., Rossman, L. A., Zierolf, M. L., and Polycarpou, M. M. (1998). “Optimal scheduling of booster disinfection in water distribution systems.”J. Water Resour. Plng. and Mgmt., ASCE, 124(2), 99–111.
4.
Boulos, P. F., et al. (1996). “Hydraulic mixing and free chlorine residual in reservoirs.” J. AWWA, 88(7), 48–59.
5.
Bush, C. A., and Uber, J. G. (1998). “Sampling design methods for water distribution model calibration.”J. Water Resour. Plng. and Mgmt., ASCE, 124(6), 334–344.
6.
Clark, R. M., Abdesaken, F., Boulos, P. F., and Mau, R. E. (1996). “Mixing in distribution system storage tanks: Its effect on water quality.”J. Envir. Engrg., ASCE, 122(9), 814–821.
7.
Dukan, S., Lévi, Y., Piriou, P., Guyon, F., and Villon, P. (1996). “Dynamic modeling of bacterial growth in drinking water networks.” Water Res., 30(9), 1991–2002.
8.
Elton, A., Brammer, L. F., and Tansley, N. S. (1995). “Water quality modeling in distribution networks.” J. AWWA, 87(7), 44–52.
9.
Frateur, I., Deslouis, C., Kiéné, L., and Tribollet, B. (1999). “Free chlorine consumption induced by cast iron corrosion in drinking water distribution systems.” Water Res., 33(8), 1781–1790.
10.
Gauthier, V., Gérard, B., Portal, J. M., Block, J. C., and Gatel, D. (1999). “Organic matter as loose deposits in a drinking water distribution system.” Water Res., 33(4), 1014–1026.
11.
Gotoh, K. (1988). “Residual chlorine concentration decreasing rate coefficients for various pipe materials.” Water Supply, London, 7(2–3), SS 21, 17–18.
12.
Grayman, W. M., and Clark, R. M. (1993). “Using computer models to determine the effect of storage on water quality.” J. AWWA, 85(7), 67–77.
13.
Grayman, W. M., Deininger, R. A., Green, A., Boulos, P. F., Bowcock, R. W., and Godwin, C. C. (1996). “Water quality and mixing models for tanks and reservoirs.” J. AWWA, 88(7), 60–73.
14.
Grayman, W. M., and Kirmeyer, G. J. ( 1999). “Quality of water in storage.” Water Distribution Systems Handbook, L. W. Mays, ed., McGraw-Hill, New York, 11.1–11.38.
15.
Hart, F. L. (1991). “Application of the NET software package.” Proc., AWWARF/USEPA Spec. Conf. Water Quality Modeling in Distribution Sys., American Water Works Association, Denver, 57–75.
16.
Holt, D. M., Gauthier, V., Merlet, N., and Block, J. C. (1998). “Importance of disinfectant demand of materials for maintaining residuals in drinking water distribution systems.” Water Supply, London, 16(3), 181–191.
17.
Jadas-Hécart, A., El Morer, A., Stitou, M., Bouillot, P., and Legube, B. (1992). “Modélisation de la demande en chlore d'une eau traitée.” Water Res., 26(8), 1073–1084 (in French).
18.
Kennedy, M. S., Moegling, S., Sarikelle, S., and Suravallop, K. (1993). “Assessing the effect of storage tank design on drinking water quality.” J. AWWA, 85(7), 78–88.
19.
Kerneïs, A., Nakache, F., Deguin, A., and Feinberg, M. (1995). “The effects of water residence time on the biological quality in a distribution network.” Water Res., 29(7), 1719–1727.
20.
Kiéné, L., Lu, W., and Lévi, Y. (1998). “Relative importance of the phenomena responsible for chlorine decay in water distribution systems.” Water Sci. and Technol., 38(6), 219–228.
21.
Kirmeyer, G. J., et al. (1998). “Maintaining water quality in finished water storage facilities.” Proc., Water Quality Technol. Conf. Am. Water Works Assoc., American Water Works Association, Denver (on CD ROM).
22.
Lu, W., Kiéné, L., and Lévi, Y. (1999). “Chlorine demand of biofilms in water distribution systems.” Water Res., 33(3), 827–835.
23.
Nitivattananon, V., Sadowski, E. C., and Quimpo, R. G. (1996). “Optimization of water supply system operation.”J. Water Resour. Plng. and Mgmt., ASCE, 122(5), 374–384.
24.
Ozdemir, O. N., and Ger, A. M. (1998). “Realistic numerical simulation of chlorine decay in pipes.” Water Res., 32(11), 3307–3312.
25.
Parent, A., Saby, S., Sardin, M., Block, J. C., and Gatel, D. (1996). “Contribution of biofilms to the chlorine demand of drinking water distribution systems.” Proc., Water Quality Technol. Conf. Am. Water Works Assoc., American Water Works Association, Denver (on CD ROM).
26.
Powell, J. C., West, J. R., Hallam, N. B., Forster, C. F., and Simms, J. (2000). “Performance of various kinetic models for chlorine decay.”J. Water Resourc. Plng. and Mgmt., ASCE, 126(1), 13–20.
27.
Rossman, L. A. (1994). EPANET—Users manual, EPA-600/R-94/057, U.S. EPA Risk Reduction Engineering Laboratory, Cincinnati.
28.
Rossman, L. A., Clark, R. M., and Grayman, W. M. (1994). “Modeling chlorine residuals in drinking-water distribution systems.”J. Envir. Engrg., ASCE, 120(4), 803–820.
29.
Rossman, L. A., and Grayman, W. M. (1999). “Scale-model studies of mixing in drinking water storage tanks.”J. Envir. Engrg., ASCE, 125(8), 755–761.
30.
Rossman, L. A., Uber, J. G., and Grayman, W. M. (1995). “Modeling disinfectant residuals in drinking-water storage tanks.”J. Envir. Engrg., ASCE, 121(10), 752–755.
31.
Tryby, M. E., Boccelli, D. L., Koechling, M. T., Uber, J. G., Summers, R. S., and Rossman, L. A. (1999). “Booster chlorination for managing disinfectant residuals.” J. AWWA, 91(1), 95–108.
32.
Vasconcelos, J. J., et al. (1996). “Characterization and modeling of chlorine decay in distribution systems.” AWWA Res. Found. Rep. 90705, American Water Works Association, Denver.
33.
Wable, O., Dumoutier, N., Duguet, J. P., Jarrige, P. A., Gelas, G., and Depierre, J. F. (1991). “Modeling chlorine concentrations in a network and applications to Paris distribution network.” Proc., AWWARF/USEPA Special Conf. Water Quality Modeling in Distribution Sys., American Water Works Association, Denver, 77–87.
34.
Wable, O., Levi, Y., Montiel, A., Archenault, M., and Veyrie, A. (1993). “Miniature chlorine micro-sensors for on-line control of drinking water quality in distribution systems.” Proc., Water Quality Technol. Conf. Am. Water Works Assoc., American Water Works Association, Denver, 209–215.
35.
Wang, H., and Falconer, R. A. (1998). “Numerical modeling of flow in chlorine disinfection tanks.”J. Hydr. Engrg., ASCE, 124(9), 918–931.
Information & Authors
Information
Published In
Journal of Water Resources Planning and Management
Volume 126 • Issue 4 • July 2000
Pages: 221 - 228
History
Received: Mar 10, 2000
Published online: Jul 1, 2000
Published in print: Jul 2000
Authors
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