In situ Heavy Oil Bioremediation in Alberta

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Using a special microbial blend, Delta Environmental has been successfully bioremediating high concentrations of heavy oil in soil around pipelines and oil production equipment.  At a typical site, Delta reduced the concentration of petroleum C34 to >C50 from 130,000 mg/Kg to less than 10,900 in 30 days.  That is a removal rate of 3,970 mg/Kg/day.  This approach not only benefits the environment and meets green cleanup standards, but saves money and equipment downtime for the facility.

Sulfolane Bioremediation

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Sulfolane is an emerging contaminant of concern for potential environmental impact to ground water in Alberta.  CL Solutions recently completed laboratory bench-scale testing that showed the Petrox organisms can efficiently degrade sulfolane.  Under laboratory conditions Petrox organisms metabolized sulfolane at a minimum rate of 33 ug/L/day.  Further lab tests are under way and field scale implementation may proceed in the Summer of 2017.

Land Farming Application Reduces TPH by 90% to 99%

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Petrox microbes were added to excavated petroleum-contaminated soil to accelerate the degradation of DRO and ERO total petroleum hydrocarbons. Petrox was added by spraying the surface of the soil with a hydrated Petrox solution.  The microbes were mixed into the soil using a tractor-mounted disc tiller.  photo-2              photo-1

After approximately 60 days, soil samples were taken for testing.  The soils showed 90% to 99% petroleum removal.  The following chart shows the range of DRO and ERO concentrations before and after Petrox treatment.

land-farming-results

Soil Mixing to Improve Distribution of Microbial Solution

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Bioaugmentation results can be accelerated and amplified by soil mixing to improve distribution and contact.  The equipment shown in this example was used to blend Petrox with contaminated soil to a depth of 10 feet.

Soil Mixing Equipment to Improve Microbial Solution Distribution

Soil Mixing Equipment to Improve Microbial Solution Distribution

Click here to view a short video of soil mixing.

The Basics of Petroleum Bioremediation

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For a brief summary of the basics of petroleum bioremediation follow this link Basics of Petroleum Bioremediation