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Home  >  Volume 36 (no2)

DEVELOPMENT OF SALTWATER INTRUSION MODEL IN COASTAL AQUIFERS by James A. Adegoke , Olatunde I. Popoola and Oludotun O. Faluyi (pages 361-366)
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Saltwater intrusion is a major challenge for the management of drinking water supply in the coastal regions. It is the most common and widespread contamination problem in aquifers around the world due to increasing coastal population. The best means to understand, predict, and ameliorate saltwater intrusion, as well as to manage aquifers subject to saltwater intrusion involves mathematical modeling to simulate the effect of hydrophysical parameters on the mass flux of saltwater on coastal aquifers. A mathematical model was developed by applying some constraints on Darcy’s and Fick’s laws; it was used to simulate an effect of geophysical parameters on a mass flux of saltwater in coastal regions. The range of boundary value conditions was obtained empirically from a modeled experiment. Results showed that the mass flux of saltwater contaminant in a porous medium attenuates as a function of hydraulic conductivity and diffusion coefficient.     

Keywords: Seawater intrusion, groundwater, hydraulic gradient, hydraulic conductivity, and diffusion coefficient.