Article Sidebar
Keywords:
Article Details
In accordance with the Copyright Act of 1976, which became effective January 1, 1978, the following statement signed by each author must accompany the manuscript submitted: "I, the undersigned author, transfer all copyright ownership of the manuscript referenced above to the Nigerian Journal of Technological Development, in the event the work is published. I warrant that the article is original, does not infringe upon any copyright or other proprietary right of any third party, is not under consideration by another journal, and has not been published previously. I have reviewed and approve the submitted version of the manuscript and agree to its publication in the Nigerian Journal of Technological Development." A copyright transfer form may be downloaded from the NJTD Website (http://njtd.com.ng/index.php/njtd). Author(s) will be consulted, whenever possible, regarding republication of material. All authors must have access to the data presented and the authors and sponsor (if applicable) must agree to share original data with the editor if requested.
Main Article Content
Effect of chemical remediation of crude-oil polluted agricultural land on soil properties and crop performance
Abstract
Chemical degreaser with detergent was. used to wash crude-oil polluted agricultural soil and restore it to 83% -93% of the unpolluted soil's status for sustainable productivity. Comparison of reclaimed soil's properties with unpolluted soil sample of the same area indicated no significant differences (p=0.05) between their values for soil moisture content, soil pH, evapotranspiration, root elongation and soil fertility. Root elongation at 1.1 cm/day in the reclaimed soil compared with 1.29 cm/day in unpolluted soil indjcated 83% recovery. Saturated hydraulic conductivity alsp had ·83% recovery. However, infiltration rate showed a low recovery of 30.%, perhaps, due to the wetness of the reclaimed soil's surface . prior· to the reclamation process. The soil · macro/microspores were unblocked by the degreaser enabling the root pores to overcome the osmotic problem caused by oil-molecules' blockade and conduct moisture through to the phloem and. leaves to sustain evapotranspiration, leaves turgidity and plant health. The chemical reclamation by degreaser with detergent is highly recommended for short-duration in-situ remediation of crude-oil polluted agricultural land.
Keywords: crude-oil degradation soil, agricultural land, chemical remediation, degreaser/detergent, crop performance.
