Diameter and Surcharge Effects on Solute Transport across Surcharged Manholes
Publication: Journal of Hydraulic Engineering
Volume 131, Issue 4
Abstract
New data are presented describing the retention time and longitudinal dispersion of a solute tracer across circular surcharged manhole structures of different diameters. The variations with both discharge and surcharge level are described and the relationships quantified. The variation of the longitudinal dispersion coefficient exhibits poorly defined trends, however using an aggregated dead zone technique both the reach time delay and travel time show clear variations. A surcharge threshold level for these parameters is evident at the larger manhole diameters and this is explained in relation to jet theory. The variation of the surcharge mean time delay and postthreshold mean travel time are quantified, while the prethreshold travel times are shown to be dependent on both discharge and surcharge. The relationships allow for inclusion in sewer water quality modeling and provide a method for improving predictive techniques.
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Acknowledgments
This research was supported by the United Kingdom Science and Engineering Research Council Research Grant (Ref. No. GR/H43366), entitled “Dispersion of Solutes and Sediments in Urban Drainage Systems.” Mr. C. Saiyudthong was supported by the Thai government.
References
Albertson, M. L., Dai, Y. B., Jensen, R. A., and Hunter, R. (1950). “Diffusion of submerged jets.” Trans. Am. Soc. Civ. Eng., 115, 639–664.
Arao, S., and Kusuda, T. (1999). “Effects of pipe bending angle on energy losses at two-way circular drop manholes.” Proc., 8th Int. Conf. on Urban Storm Drainage, Sydney, Australia, 2163–2168.
Archer, B., Bettes, F., and Colyer, P. J. (1978). “Head losses and air entrainment at surcharged manhole.” Rep. No. IT185, Hydraulics Research Station, Wallingford, England.
Barraclough, A., Freestone, R., Guymer, I., and O’Brien, R. T. (1994). “Evaluation of the aggregated dead zone (ADZ) method as a river catchment management tool applied to the rivers Aire and Derwent in Yorkshire.” Proc., 2nd Int. Conf. on Hydraulic Modeling, Stratford-upon-Avon, U.K., 439–449.
Beer, T., and Young, P. C. (1983). “Longitudinal dispersion in natural streams.” J. Environ. Eng., 109(5), 1049–1067.
Bencala, K. E., and Walters, R. A. (1983). “Simulation of solute transport in a mountain pool-riffle stream: A transient storage model.” Water Resour. Res., 19, 718–724.
Bo Pedersen, F. B., and Mark, O. (1990). “Head losses in storm sewer manholes: Submerged jet theory.” J. Hydraul. Eng., 116(11), 1317–1328.
Dennis, P. M. (2000). “Longitudinal dispersion due to surcharged manholes.” PhD thesis, The Univ. of Sheffield, Sheffield, U.K.
Guymer, I., and O’Brien, R. T. (2000). “Longitudinal dispersion due to surcharged manhole.” J. Hydraul. Eng., 126(2), 137–149.
Hart, D. R. (1995). “Parameter estimation and stochastic interpretation of the transient storage model for solute transport in streams.” Water Resour. Res., 31(2), 323–328.
Howarth, D. A., and Saul, A. J. (1984). “Energy loss coefficients at manholes.” Proc., 3rd Int. Conf. on Urban Storm Drainage, Vol. 1, Goteberg, Sweden, 127–136.
Johnston, A. J., and Volker, R. E. (1990). “Head losses at junction boxes.” J. Hydraul. Eng., 116(3), 326–341.
Lees, M. J., Camacho, L. A., and Chapra, S. (2000). “On the relationship of transient storage and aggregated dead zone models of longitudinal solute transport in streams.” Water Resour. Res., 36(1), 213–224.
Lindvall, G. (1984). “Head losses at surcharged manholes with a main pipe and a 90 degree lateral.” Proc., 3rd Int. Conf. on Urban Storm Drainage, Vol. 1, Goteberg, Sweden, 137–146.
O’Brien, R. T. (1999). “Dispersion due to surcharged manholes.” PhD thesis, The Univ. of Sheffield, Sheffield, U.K.
Rutherford, J. C. (1994). River Mixing, Wiley, Chichester, England.
Taylor, G. I. (1954). “The dispersion of matter in turbulent flow through a pipe.” Proc. R. Soc. London, Ser. A, 223, 446–468.
Wallis, S. G., Guymer, I., and Bilgi, A. (1989a). “A practical engineering approach to modeling longitudinal dispersion.” Proc., Int. Conf. on Hydraulic and Environmental Modeling of Coastal, Estuarine and River Waters, Bradford, England, 291–300.
Wallis, S. G., Young, P. C., and Beven, K. J. (1989b). “Experimental investigations of the aggregated dead zone model for longitudinal solute transport in stream channels.” Proc. Inst. Civil Eng., Part 2, 87, 1–22.
Wörman, A. (2000). “Comparison of models for transient storage of solutes in small streams.” Water Resour. Res., 36, 455–468.
Young, P., Jakeman, A., and McMurtrie, R. (1980). “An instrument variable method for model order identification.” Automatica, 16, 281–294.
Young, P. C., and Wallis, S. G. (1986). “The aggregated dead zone (ADZ) model for dispersion in rivers.” Proc., Int. Conf. on Water Quality Modeling in the Inland Natural Environment, Vol. L1, Bournemouth, England, 421–433.
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© 2005 ASCE.
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Received: Aug 16, 2002
Accepted: Jul 21, 2004
Published online: Apr 1, 2005
Published in print: Apr 2005
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