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Predicting the TPH Concentration along Horizontal Direction of Stagnated Water Contaminated with Crude Oil

Ozioko F. C., Ekperi N. I, Okirie Faith Uchendu

Abstract


The research predicts and models TPH concentration along Horizontal Direction of Stagnated water contaminated with Crude Oil. TPH diffusion in the stagnant water media was studied using Developed Dispersion and Degradation Model incorporated with first order degradation rate and the Monod equation. TPH content decreased with increase in time, but randomly varied across the depths. The impact of crude oil was more in the fresh water compared to salt water media. The TPH predicted by the diffusion model incorporated with first order rate kinetics matched closely with experimental data than the model incorporated with Monod equation. The deviation between the predicted TPH by the model incorporated with Monod equation and the experimental data showed Monod Equation may not be suitable to use as rate parameter in the diffusion model. The predicted TPH using the first order rate kinetics and Monod Equation have been simulated and evaluated at the various days of the experimental analysis. However, either of the models can be used to study the rate of oil sediment in stagnant water media. Finally, the level of physicochemical parameters in the water media after crude oil pollution and the slow rate of TPH reduction over the investigation period implied that it will take a longer time for TPH to degrade under natural attenuation, but using the identified bacteria via bioargumentation technique could accelerate the TPH degradation.


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References


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