Bioremediation of kerosene II: a case study in contaminated clay (Laboratory and field: scale microcosms)

Abstract

Kerosene contaminated clay results in large amounts from the treatment of Jet kerosene produced from Merox process, in the Middle East Operation and Maintenance for Oil Refineries (MIDOR), Alexandria and represent a great environmental pollution problem. The treatment of the clay was performed with natural attenuation, biostimulation and bioaugmentation in lab and fieldscale microcosms. More than 90% of the kerosene was biodegraded in bioaugmentation and biostimulation processes, while only 50% was obtained by natural attenuation after seven weeks. Urea 46% and superphosphate 15.5% were used as nitrogen and phosphorus sources due to their low cost and local availability. The immobilized cells enhanced the biodegradation processes and reduced the time. Dehydrogenase activity was affected by the time and type of the treatment. The degradation percent was found to be 85-90% at temperature range 21-24°C, while only 57-68% was obtained at temperature 15-17°C. The labscale microcosm was scaled up to field microcosm with a great success.

Full-Scale Remediation of a Jet Fuel-Contaminated Soil: Assessment of Biodegradation, Volatilization, and Bioavailability

“…Concretely, the bioremediation of jet fuel, a mixture of volatile and semi-volatile compounds at room temperature that is usually obtained as a fractional distillation of petroleum between 150°C and 275°C, has been reported (Gouda et al 2007(Gouda et al , 2008Tzovolou et al 2009 and references therein). In fact, bioremediation of this fuel is facilitated because volatile and semi-volatile linear alkanes, branched alkanes, and cycloalkanes predominate while aromatics are less abundant.…”

Biodegradation of Kerosene byAspergillus flavusUsing Statistical Experimental Designs

“…Biodegradation of Kerosene by Aspergillus flavus were reported (Shabir et al 2008;Gouda et al 2008). The preoptimized medium composition and culture conditions to be near optimum for 100% kerosene degradation, which resulted from application of Plackett-Burman statistical design, were (g/L) (NH 4 )NO 3 , 0.5; MgSO 4 ¢7H 2 O, 0.1; K 2 HPO 4 .…”

Study on the Building Mechanism of Straw Immobilized Microorganisms

“…G.Y.XU [4] say that different stalk has different morphology. The immobilized microorganism using haulm as straw can enhance the biodegrading procedure of kerosene and shorten the time span of degrading [5]. The immobilized microorganism using cornstalk as straw bring out favourable effect in the fermentation producing procedure of acetonum, ethylalcohol and butanol [6].…”