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Geosciences 2018, 8(9), 332; https://doi.org/10.3390/geosciences8090332

The Influence of Crude Oil on Mechanistic Detachment Rate Parameters

1
Department of Environmental Engineering, College of Engineering, Mustansiriyah University, Bab Al Muadham, Baghdad 10047, Iraq
2
Department of Water Resources Engineering, College of Engineering, Mustansiriyah University, Bab Al Muadham, Baghdad 10047, Iraq
*
Author to whom correspondence should be addressed.
Received: 18 July 2018 / Revised: 23 August 2018 / Accepted: 25 August 2018 / Published: 4 September 2018
(This article belongs to the Special Issue Soil Hydrology and Erosion)
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Abstract

Iraqi soil contamination greatly influenced soil detachment. Previous researchers have not been able to predict the influence of crude oil soil contamination on either the mechanistic dimensional detachment parameter b0 or the threshold parameter b1 of the mechanistic detachment model (Wilson model). The aims of this research were (1) to investigate the influence of crude oil on deriving Wilson model parameters, b0 and b1, with two setups at different scales and different soil moisture contents and (2) to predict b0 and b1 in crude oil contaminated dry soils with varying levels of contamination. The “mini” JET apparatus was implemented under laboratory conditions for soil specimens packed at both a small (standard mold) and a large (in-situ soil box) scale. The results showed an inverse correlation between b0 and water content for clean soil. No correlation between b0 and soil moisture content was observed for contaminated soils. There was a huge reduction in the b0 value as the contamination time increased compared to the clean soil. This was related to the role crude oil plays in soil stabilization. Crude oil contamination significantly increased lead contamination level while slightly increasing the pH and total organic carbon. The influence of crude oil on mechanistic soil detachment can be predicted with a priori JET experiments on soils without crude oil based on crude oil parameters. View Full-Text
Keywords: Wilson model; soil erodibility factors; crude oil; Jet Erosion Test; contaminated soil Wilson model; soil erodibility factors; crude oil; Jet Erosion Test; contaminated soil
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Hasan, M.B.; Al-Madhhachi, A.-S.T. The Influence of Crude Oil on Mechanistic Detachment Rate Parameters. Geosciences 2018, 8, 332.

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