| Site Description - Crude Oil Location - Mexico | Treatment Method (in-situ) | |
For years refinery and oil field
waste had been dumped into the marsh adjacent to a residential
area. This included a dyked area, 3 meters deep, containing a
mixture of 60% oil-tar in water. This area held approximately.
3,400 m3 of contaminated soil. The average TPH level
was 131,192 PPM.
The soil around the dyke was mixed with the dyke walls to
achieve a uniform TPH contamination level of 89,650 PPM.
Oppenheimer Formula I, nutrients, and biocatalyst were
added and with the use of a heavy duty slurry pump, the
area was converted into a giant bioreactor. When the TPH
of the slurry reached 18,000 PPM, 6000 cubic meters of
soil was excavated and land farmed offsite. When the soil
TPH was below 300 PPM it was placed back into the area.
Photograph 2
Soil contaminated with crude oil and refinery waste sludge.
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Photograph 1 Waste pond filled with 60% crude oil and refinery waste sludge.
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Photograph 3 - Site of the former waste pit now completely remediated.
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