In-Situ Treatment of Soil Contaminated by Benzene (A BTEX Compound)
نویسنده
چکیده
Introduction Gasoline is a complex solution of different hydrocarbons. Naturally occurring petroleum contains aromatic hydrocarbons, a class of unsaturated hydrocarbons that includes benzene, toluene, ethylenzene, and xylene (collectively known as BTEX). Since the EPA banned lead additions to gas in 1973, aromatic hydrocarbons were added to increase the octane concentration, thereby maximizing the burn rate of gasoline in the engine cylinders (Cole 1994). Unleaded and premium gasoline contains 4% and 5% benzene by weight, respectively (Cole 1994).
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