Odisu T, Okieimen C O, Ogbeide S E
Department of Chemical Engineering, Federal University of Petroleum Resources, Effurun, Nigeria.
Department of Chemical Engineering, University of Benin, Benin-City, Nigeria.
Mar Pollut Bull. 2021 Mar;164:111993. doi: 10.1016/j.marpolbul.2021.111993. Epub 2021 Jan 27.
Oil spills have become a major source of pollution. In some cases, the impacted environment is self-cleansed by waves. Turbulent environments have enjoyed research attention with models available. However, it is different for stagnant water in sections of Nigerian Niger Delta mangrove swamp. This paper reports on developing mathematical models for monitoring transport of non-volatile aliphatic hydrocarbons by water and sediments using equations of transport and mass transfer. The models were validated using results from a simulated stagnant water mangrove swamp polluted with crude oil. From the result, non-volatile aliphatic hydrocarbons transported through water at 0.25 m and 1 m for month 1 is 335.75 μg/l and 0.062 μg/l for experiment and 360.0 μg/l and 0.181 μg/l for model respectively. While month 5, was 1505.37 μg/l and 15.78 μg/l for experiment and 1300.77 μg/l and 28.94 μg/l for model respectively. These and others reported show that the models developed can adequately predict the transport of non-volatile aliphatics.
石油泄漏已成为主要的污染源。在某些情况下，受影响的环境会通过海浪进行自我净化。湍流环境因有可用模型而受到研究关注。然而，尼日利亚尼日尔三角洲红树林沼泽地区的死水情况则不同。本文报告了利用输运和传质方程建立监测非挥发性脂肪烃在水体和沉积物中输运的数学模型。这些模型通过对一个模拟的被原油污染的死水红树林沼泽的结果进行了验证。结果显示，在第1个月时，非挥发性脂肪烃在0.25米和1米水深处通过水体输运的实验值分别为335.75微克/升和0.062微克/升，模型值分别为360.0微克/升和0.181微克/升。而在第5个月时，实验值分别为1505.37微克/升和15.78微克/升，模型值分别为1300.77微克/升和28.94微克/升。这些以及其他报告结果表明，所建立的模型能够充分预测非挥发性脂肪烃的输运情况。
