Calibrating the velocity of solute on E. coli transport in pheratic aquifers in port harcourt, rivers state of Nigeria
Keywords:
Velocity of solute transport, Soil, Migration, E. ColiAbstract
Calibrating the velocity of solute transport in phreatic aquifers has been assessed, the solute velocity of transport established various rate of velocity at different depth in the study area. The study confirm the influence of the flow paths as one of the causes of variation in solute velocity of flow, few area were examined that confirms the influence of stratification of the soil formation, this has played some role on the rate of velocity flow at different depth, formation characteristics like porosity where also observed to have recorded some influence in the stratification of silty and fine sand where the an optimum level where recorded, the lower rate of velocity are where lateritic soil are predominant, few location experience an average mix of lateritic and silty formation as observed in average velocity of those depths. The study is imperative because it has assessed the rate of velocity of solute flow at different formation, this concept will determine the time of solute migration in the study area.References
Ataie-Ashtiani, B., Volker, R.E., Lockington, D.A., 1999. Tidal effects on sea water intrusion in unconfined aquifers.
Journal of Hydrology 216, 17–31.
Acworth, R.I., Dasey, G.R., 2003. Mapping of the hyporheic zone around a tidal creek using a combination of
borehole logging, borehole electrical tomography and cross-creek electrical imaging, New South Wales,
Australia. Hydrogeology Journal.11, 368–377.
Harvey, J.W., German, P.F., Odum, W.E., 1987. Geomorphological control of subsurface hydrology in the creek
bank zone of tidal marshes. Estuarine and Coastal Shelf Science 25, 677–691.
Markus, W., Taro, U., Jeff, M., 2011. Connectivity due to preferential flow controls water flow and solute transport
at the hillslope scale Department of Forest Engineering, Oregon State University, Corvallis, USA b Graduate
School of Agriculture, Kyoto University, Japan
McDonnell, J.J.A., 1990. rationale for old water discharge through macropores in a steep, humid catchment.,
Water Resources Research, 26(11), 2821-2832,
McDonnell, J.J., Stewart, M.K., Owens, I.F., 1991. Effect of catchment-scale subsurface mixing on stream isotopic
response, Water Resources Research, 27, 3065-3073,
Sidle, R.C., Kitahara, H., Terajima, T., Nakai, Y., 1995. Experimental studies on the effects of pipe flow on
throughflow partitioning, Journal of Hydrology, 165, 207-219,
Sidle, R.C., Tsuboyama, Y., Noguchi, S., Hosoda, I., Fujieda, M., Shimizu, T., 2000. Stormflow generation in steep
forested headwaters: a linked hydrogeomorphic paradigm, Hydrological Processes, 14(3), 369-385,
Tsuboyama, Y., Sidle, R.C., Noguchi, S., Hosoda, I., 1994. Flow and solute transport through the soil matrix and
macrospores of a hillslope segment, Water Resources Research, 30(4), 879-890.
Weiler, M., McDonnell J.J., 2003. Virtual experiments: A new approach for improving process conceptualization in
hillslope hydrology, Journal of Hydrology, (in review).
Weiler, M., Naef, F., Leibundgut, C., 1998. Study of runoff generation on hillslopes using tracer experiments and
physically based numerical model, IAHS Publication,248, 353-360.
Mosley, M.P., 1979. Stream flow generation in a forested watershed, Water Resources Research, 15, 795-806.
Boudreau, B.B., Jorgensen, B.B., (Eds.), 2001. The Benthic Boundary Layer: Transport Processes and
Biogeochemistry. Oxford University Press, Oxford
Clement, T.P., Wise, W.R., Molz, F.J., Wen, M., 1996. A comparison of modeling approaches for steady-state
unconfined flow. Journal of Hydrology 181, 189–209.
Cooper, H.H., 1959. A hypothesis concerning the dynamic balance of fresh water and salt water in a coastal
aquifer. Journal of Geophysical Research 64, 461–467.
Gallagher, D.L., Dietrich, A.M., Reay, W.G., Hayes, M.C., Simmons, Jr., G.M., 1996. Ground water discharge of
agricultural pesticides and nutrients to estuarine surface water. Ground Water Monitoring and Remediation
(1), 118–129.
Glover, R.E., 1959. The pattern of fresh-water flow in a coastal aquifer. Journal of Geophysical Research 64, 457–
Krabbenhoft, D.P., Bowser, C.L., Anderson, M.P., Valley, J.W.,1990. Estimating groundwater exchange with lakes: 1.
The stable isotope mass balance method. Water Resources Research 26 (10), 2445–2453.
Portney, J.W., Nowicki, B.L., Roman, C.T., Urish, D.W., 1998. The discharge of nitrate-contaminated groundwater
from developed shoreline to marsh-fringed estuary. Water Resources Research 34 (11), 3095–3104
Reilly, T.E., Goodman, A.S., 1985. Quantitative analysis of salt water–freshwater relationships in groundwater
systems—a historical perspective. Journal of Hydrology 80, 125–160.
Robinson, M.A., Gallagher, D.L., 1999. A model of groundwater discharge from an unconfined coastal aquifer.
Ground Water 37 (1), 80–87.
Robinson, M.A., Gallagher, D.L., Reay, W.G., 1998. Field observations of tidal and seasonal variations in ground
water discharge to estuarine surface waters. Ground Water Monitoring and Remediation 18 (1), 83–92.
Simpson, M.J., Clement, T.P., 2004. Improving the worthiness of the Henry problem as a benchmark for densitydependent groundwater flow models. Water Resources Research 40 (1), W01504
doi:10.1029/2003WR002199.
Simpson, M.J., Clement, T.P., Gallop, T.A., 2003. Laboratory and numerical investigation of flow and transport near
a seepage face boundary. Ground Water 41 (5), 690–700.
Smith, A.J., Turner, J.V., 2001. Density-dependent surface water–groundwater interaction and nutrient discharge in
the Swan- Canning Estuary. Hydrolological Processes 15, 2595–2616.
Tobias, C.R., Harvey, J.W., Anderson, I.C., 2001. Quantifying groundwater discharge through fringing wetlands to
estuaries: seasonal variability, methods comparison, and implications for wetland-estuary exchange.
Limnology and Oceanography 46 (3), 604–615.
Westbrook, S., Davis, G.B., Rayner, J.L., Fisher, S.J. Clement, T.P., 2000. Initial site characterization of a dissolved
hydrocarbon groundwater plume discharging to a surface water environment, in: Johnston, C.D. (Ed.),
Contaminated Site Remediation: From Source Zones to Ecosystems Proceedings 2000 Contaminated Site
Remediation Conference, Melbourne,
–8 December 2000, pp. 189–196.
White, D.S., 1993. Perspectives on defining and delineating hyporheic zones. Journal of North American
Benthological Society 12 (1), 61–69.
Lorah, M.M., Olsen, L.D., 1999. Natural attenuation of chlorinated volatile organic compounds in a freshwater tidal
wetland: field evidence of anaerobic biodegradation. Water Resources Research 35 (12), 3811–3827.
Westbrook S.J. Rayner J.L. Davis G.B. Clementa,c, T.P. Bjergd, P.L. Fisher S.J. (2005) Interaction between shallow
groundwater, saline surface water and contaminant discharge at a seasonally and tidally forced estuarine
boundary Journal of Hydrology 302 (2005) 255–269
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2013 Solomon Ndubuisi Eluozo
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
