Degradation Kinetics of an Aged Hydrocarbon-Contaminated Soil
2009
Maletić, Snežana | Dalmacija, Božo | Rončević, Srđan | Agbaba, Jasmina | Petrović, Olgica
This work presents kinetic parameters for the degradation of petroleum hydrocarbons, under field conditions found in a biopile created for the remediation of soil which has been heavily polluted with aged oil and oil derivatives (27,600 mg kg⁻¹ of mineral oil, 41,400 mg kg⁻¹ total hydrocarbons and 3.57 mg kg⁻¹ of total polycyclic aromatic hydrocarbon, (PAH)). The kinetics of the biodegradation process can be described by two equations: [graphic removed] (1) and [graphic removed] (2). According to Eq. 1, biodegradation kinetics constant rates were in the range from 0.58 x 10⁻³ to 1.32 x 10⁻³ day⁻¹ for mineral oil and total hydrocarbons and 6.7 x 10⁻³ to 8.8 x 10⁻³ day⁻¹ for PAHs. According to Eq. 2, biodegradation kinetics constant rates were in the range from 1.6 x 10⁻² to 3.0 x 10⁻² day⁻⁰.⁵ for mineral oil and total hydrocarbons and 0.92 x 10⁻¹ to 1.3 x 10⁻¹ day⁻⁰.⁵ for PAHs.
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