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Conventional landfarming approaches to bioremediation of refinery and other petroleum sludges are not acceptable environmentally and are banned in most North American jurisdictions. While initial bioreactor-based systems for treatment of these sludges required batch-cycle process-times of 1–3 months, an accelerated process has now been developed which can(More)
Volatile hydrocarbon biodegradation by a mixed-bacterial culture during growth on Bow River crude oil was investigated using solid phase microextraction (SPME). Inoculum treatments were examined in relation to C5–C11 hydrocarbon degradation. Up to 1600 mg/l biomass (dry weight) was tested without achieving significant volatile hydrocarbon partitioning and(More)
A quantitative solid-phase microextraction, gas chromatography, flame ionization detector (SPME-GC-FID) method for low-molecular-weight hydrocarbons from crude oil was developed and applied to live biodegradation samples. Repeated sampling was achieved through headspace extractions at 30°C for 45 min from flasks sealed with Teflon Mininert. Quantification(More)
The potential for using Fenton's reagent (H2O2 + Fe2+) as an advanced oxidation pretreatment process to enhance microbial transformation of two model polycyclic aromatic hydrocarbons, anthracene and benzo[a]pyrene, in an aqueous system was evaluated. Fenton's reagent at a concentration of 0.5% H2O2 and 10 mM Fe2+ (molar ratio, 15:1) was most effective in(More)
Route planning is a popular application for mobile devices, but still some problems have not been solved for road networks of continental size. Major constraints are the limited resources, that do not allow entire road networks to be held in main memory. Only a fraction of the complete road network can be held in main memory at once – most of the data must(More)
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