Enhancing petroleum-contaminated soil remediation using pulverized rice straw.

Autor: Oghoje, S. U., Omoruyi, I. C., Ejeomo, C., Ifijen, I. H., Ukpebor, J. E., Asiagwu, A. K., Ukpebor, E. E., Ikhuoria, E. U.
Zdroj: Chemical Papers; Jun2024, Vol. 78 Issue 8, p4909-4918, 10p
Abstrakt: This study investigated the effect of pulverized rice straws (PRS, Oryza sativa) on the water retention capacity (WRC) of diesel-contaminated soils and the leaching of diesel-range organics (DROs). Diesel contamination at levels of 5, 10, and 15% reduced the WRC by ~ 6, 11, and 26%, respectively. However, adding PRS to 15% diesel-contaminated soils improved the WRC by ~ 18, 31, 53, and 75% for PRS concentrations of 1, 2.5, 5, and 10%, respectively. Furthermore, PRS concentrations of 2.5, 5, and 10% decreased the DROs leaching from 20% diesel-contaminated soil by 34, 75, and 100%, respectively. The findings of this study indicate that composting with PRS enhances WRC and significantly reduces contamination leaching in oil-contaminated soils. This suggests that PRS and similar green composts could optimize landfarming of organically contaminated soils, offering an innovative approach to repurposing waste plant biomass. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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