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Influence of contamination with diesel oil on sandy loam soil sorptivity
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  • Jerzy Weber,
  • Edyta Hewelke,
  • Dariusz Gozdowski,
  • Piotr Hewelke
Jerzy Weber
Uniwersytet Przyrodniczy we Wroclawiu

Corresponding Author:[email protected]

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Edyta Hewelke
Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
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Dariusz Gozdowski
Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
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Piotr Hewelke
Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
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Abstract

This paper present results on soil contamination with petroleum hydrocarbons (PHs) on soil sorptivity and hydrophobicity under different soil moistures. The micro-infiltrometer method was used in laboratory experiment to determine the soil water repellency index (R) and the water drop penetration time (WDPT) test. The increase in PHs contamination contributed to soil repellency and caused a decrease in water sorptivity. The negative effect of contamination with PHs on soil sorptivity depended on soil moisture and was marked especially clearly after exceeding the critical moisture threshold. However, contamination by PHs did not reveal significant changes when ethanol was used instead of water. The R index and the WDPT test revealed a similar trend, inversely related to the level of soil contamination with PHs. The total amount of water available to plants in non-contaminated soil was 19.04%, while contamination equal to 100 g kg -1 caused a decrease to 6.36%. Hydrophobization of water-conducting pore surfaces by petroleum hydrocarbons severely reduced infiltration and destroyed the existing hydrological system of naturally hydrophilic soil. The almost three-fold decrease in total amount of water has a fundamental influence on increasing the risk of soil drought. The soil water repellency causes a decrease in resistance to droughts and slows the alimentation process of soil water retention. The results obtained indicated that the interrelations presented between the level of PHs contamination, soil sorptivity, water repellency, and soil moisture are key to predicting the environmental effects of contamination and effective soil remediation.
17 Mar 2022Submitted to Land Degradation & Development
18 Mar 2022Submission Checks Completed
18 Mar 2022Assigned to Editor
06 Apr 2022Reviewer(s) Assigned
05 May 2022Review(s) Completed, Editorial Evaluation Pending
29 May 2022Editorial Decision: Revise Major
20 Jun 20221st Revision Received
24 Jun 2022Assigned to Editor
24 Jun 2022Submission Checks Completed
24 Jul 2022Review(s) Completed, Editorial Evaluation Pending
22 Aug 2022Editorial Decision: Revise Major
28 Sep 20222nd Revision Received
29 Sep 2022Submission Checks Completed
29 Sep 2022Assigned to Editor
27 Oct 2022Review(s) Completed, Editorial Evaluation Pending
27 Nov 2022Editorial Decision: Revise Minor
16 Dec 20223rd Revision Received
21 Dec 2022Assigned to Editor
21 Dec 2022Submission Checks Completed
21 Dec 2022Review(s) Completed, Editorial Evaluation Pending
22 Dec 2022Reviewer(s) Assigned
02 Feb 2023Editorial Decision: Accept