Relation between Bioavailability and Fuel Oil Hydrocarbon Composition in Contaminated Soils

摘要: Bioavailability of oil components in contaminated soils is an important regulating factor for biodegradation rates. Changes the composition mineral can provide information regarding bioavailability restrictions soils. The fate was studied a lysimeter experiment and laboratory incubations. A shift n-alkane ratios range n-C16:n-C20 observed around 4.0 g kg-1, indicating that two different mechanisms control oil. At higher concentrations, controlled by solubilization from non-aqueous-phase liquid into aqueous soil water phase. remained constant with decreasing concentration this stage. Below desorption diffusion became rate-limiting factors:  ratios, showing rates n-alkanes increased carbon number. monitoring be used to improve efficiency bior...