Works on: all petroleum [header.htm]

Biopiles

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Biopile System Schematic (10 K)

Soil is excavated and piled in mounds. Organisms already living in the soil are used to degrade contaminants. Air is piped through the soil, and sometimes nutrients, minerals and/or moisture are added to speed degradation. Sometimes bacteria which have been selected for their success in breaking down hydrocarbons are added. In composting, a similar method, amendments such as horse manure are added.

Works on: all petroleum

Less Effective: heavy petroleum (takes longer)

Speed: 6-24 months

Cost: $30-90 / ton of soil

Soil requirements: hydrocarbons <50,000 ppm, heavy metals < 2,500 ppm

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Send comments, questions, bug reports to Dominic McBride at the NM Environment Department. Last modified on November 16, 2004