Application of a Hybrid Cell-in-Series Model for Simulating Phosphorus Transport in Ureje River, Southwestern Nigeria
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International Journal of Recent Engineering Science (IJRES) |  |
| © 2024 by IJRES Journal | ||
| Volume-11 Issue-5 |
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| Year of Publication : 2024 | ||
| Authors : Ayeni. A.T, Ayeni. O.O, Olowe. K.O |
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| DOI : 10.14445/23497157/IJRES-V11I5P119 |
How to Cite?
Ayeni. A.T, Ayeni. O.O, Olowe. K.O, "Application of a Hybrid Cell-in-Series Model for Simulating Phosphorus Transport in Ureje River, Southwestern Nigeria," International Journal of Recent Engineering Science, vol. 11, no. 5, pp. 193-205, 2024. Crossref, https://doi.org/10.14445/23497157/IJRES-V11I5P119
Abstract
The Hybrid Cell In-Series (HCIS) model was employed to assess nutrient influx into River Ureje as a surface water quality monitoring tool. Other models struggled to predict solute transport due to difficulties in estimating the longitudinal dispersion coefficient and theoretical limitations. This led to the adoption of the HCIS model for predicting phosphorus movement in River Ureje. A mass balance approach was used to create a basic hybrid model comprising a plug flow cell and two fully mixed cells, all connected in series. This model was designed to simulate the first-order kinetic reaction of phosphorus, as well as advection and dispersion processes, to track nutrient movement from a single point source. Analytical solutions for the model and nutrient kinetics were derived using Laplace transformation and then implemented through the C-Sharp programming language. A user-friendly software was developed to forecast temporal and spatial fluctuations in nutrient concentration. The model's ability to predict phosphorus concentration was tested using both hypothetical data and field data collected from Ureje River from September 2023 to March 2024. Analytical solutions proved effective in estimating nutrient and solute movement within the river, verifying the model's accuracy.
Keywords
River Ureje, Hybrid Cell in-Series Model, Phosphorus, Advection-Dispersion Equation model.
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