Modeling Benthic Oxygen Uptake by Pumping
Publication: Journal of Environmental Engineering
Volume 121, Issue 1
Abstract
In porous-bed rivers, dunes and other irregularities cause an uneven pressure distribution, which “pumps” small amounts of water through the sediments. A simple analytical model is developed to estimate the contribution pumping makes to the benthic oxygen uptake rate (BUR) in a polluted river. The model predicts that pumping makes a significant contribution to deoxygenation in the Waiotapu River, New Zealand, where the gravel bed is highly permeable and the sediment microbial activity is high, but not in the sand-bed Tarawera River. As particle size increases, pumping flow increases and biological activity, residence time, and the dissolved oxygen (DO) drop along each streamline, decrease. There appears to be a critical particle size that maximizes the pumping BUR, estimated to be 5 mm. The model shows that the kinetics of benthic oxygen uptake vary depending on the river BOD and DO concentrations, and this has implications for the structure of river water quality models. The model could be extended to other benthic mass transfer problems, including the deoxygenation of salmonid redds and benthic denitrification.
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References
1.
Bear, J. (1972). Dynamics of fluids in porous media. American Elsevier, New York, N.Y.
2.
Biofilms. (1990). W. G. Characklis, and K. C. Marshall, eds., Wiley-Interscience, New York, N.Y.
3.
Booij, K., Helder, W., and Sundby, B.(1990). “Rapid redistribution of oxygen in a sandy sediment induced by changes in the flow velocity of the overlying water.”Netherland J. Sea Res., The Netherlands, 28(3), 149–165.
4.
Boyle, J. D. (1984). “Effects of biological films on BOD decay rates in rivers.”Water Sci. and Technol., Vol. 16, 643–651.
5.
Boyle, J. D.(1984). “The role of benthic films in the oxygen balance in an east Devon river.”Water Res., 18(9), 1089–1099.
6.
Chiu, T. W. (1991). “A two-dimensional second-order vortex panel method for the flow in a cross-wind over a train and other two-dimensional bluff bodies.”J. Wind Engrg. and Industrial Aerodynamics, Vol. 37, 43–64.
7.
Elliott, A. F. (1992). “Transfer of solutes into and out of riverbeds,” PhD thesis, Calif. Inst. of Tech., Pasadena, Calif.
8.
Fehlman, M. H. (1985). “Resistance components and velocity distributions of open channel flows over bedforms,” MSc thesis, Colo. State Univ., Fort Collins, Colo.
9.
Hatherell, T. V. J. (1992). “Underground water seepage flow by complex variable boundary element method.”Proj. Rep., School of Engrg., Univ. of Exeter, Exeter, England.
10.
Hickey, C. W. (1985). “River oxygen uptake by benthic microorganisms,” PhD thesis, Univ. of Waikato, Hamilton, New Zealand.
11.
Kawashima, H., and Suzuki, M. (1989). “Numerical simulation model for prediction of BOD removal rate in rivers.”Water Sci and Technol., Vol. 21, 1003–1014.
12.
McBride, G. B. (1986). “A procedure for predicting the flux of solutes across the sediment-water interface.”Water quality modelling in the inland natural environment, British Hydr. Res. Association (BHRA), Cranfield, England, 435–447.
13.
Rutherford, J. C. (1994). River mixing. Wiley, Chichester, England.
14.
Rutherford, J. C., Wilcock, R. J., and Hickey, C. W.(1991). “Deoxygenation in a mobile-bed river. I. Field studies.”Water Res, 25(12), 1487–1498.
15.
Rutherford, J. C., Latimer, B. J., and Smith, R. K.(1993). “Bedform mobility and benthic oxygen uptake.”Water Res, 27(10), 1545–1558.
16.
Savant, S. A., Reibel, D. D., and Thibodeaux, L.(1987). “Convective transport within stable river sediments.”Water Resour. Res, 23(9), 1763–1768.
17.
Srinanthakumar, S., and Amirtharajah, A.(1983). “Organic carbon decay in river with biofilm kinetics.”J. Envir. Engrg., ASCE, 109(1), 102–119.
18.
Streeter, H. B., and Phelps, W. B. (1925). “A study of the pollution and natural purification of the Ohio River.”Public Health Bull. 146, U. S. Public Health Service, Washington, D.C.
19.
Structure and function of biofilms. (1989). W. G. Characklis, and P. A. Wilderer, eds., Dahlem Konferenzen. Wiley-Interscience, New York, N.Y.
20.
Thibodeaux, L. J., and Boyle, J. D.(1987). “Bedform-generated convective transport in bottom sediment.”Nature, 325(6102), 341–343.
21.
Velz, C. J. (1980). Applied river sanitation, 2nd Ed., Wiley, New York, N.Y.
22.
Williams, R. E., and Lewis, M. S.(1986). “River model of benthic nitrification-denitrification.”J. Envir. Engrg., 112(2), 367–386.
23.
Williamson, K., and McCarty, P. L.(1976a). “A model of substrate utilization by bacterial films.”J. WPCF, 48(1), 9–24.
24.
Williamson, K., and McCarty, P. L.(1976b). “Verification studies of the biofilm model for bacterial substrate utilization.”J. WPCF, 48(2), 281–296.
25.
Wuhrmann, K. (1972). “River purification.”Water pollution microbiology, R. Mitchell, ed., Wiley-Interscience, New York N.Y.
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Copyright © 1995 American Society of Civil Engineers.
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Published online: Jan 1, 1995
Published in print: Jan 1995
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