Remediation of spilled petroleum hydrocarbons by in situ landfarming at an arctic site

Abstract:

A simple, economical landfarming operation was implemented to treat 3600 m3 of soil at a site just northeast of Barrow, AK (latitude 71.3°N). Prior to landfarming, diesel-range organics (DRO) and trimethylbenzenes (TMB) were present in the soil at concentrations more than an order of magnitude greater than the established cleanup goals, and moderate levels of gasoline-range organics (GRO) and BTEX compounds were also present. The landfarming operation included application of a commercial fertilizer mix at a rate designed to approach, but not exceed, soil concentrations of 100 mg N/kg soil and 50 mg P/kg soil, and an aggressive schedule of soil tilling using heavy equipment that was readily available from a local source. The operation was designed to continue through the brief thaw season—a scheduled duration of 70 days—but was successfully completed more than 2 weeks ahead of schedule. This …

Año de publicación:

2004

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Fuente:

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