Drilling Sump Remediation in Central Alberta | Ex-Situ Chemical Oxidation Case Study

Case Studies

Drilling Sump Remediation in Central Alberta | Ex-Situ Chemical Oxidation

Project Details:

Location:

Wellsite/Drilling Sump – Central Alberta

Site:

Well-Site & Drilling Waste Disposal Area

Date:

2014

Present

Contaminant of Concern:

BTEX, F1, F2

Impacted Media and Volume:

>10,000 m3 impacted stockpiled soil

Project Tasks:

Remedial Planning, Detail design, Procurement, Blending and Field applications

View Project Images & Details →

The Problem:

Former drilling waste disposal area under active remediation and with limited site access. Contaminants in the soil included BTEX, F1, and F2. A total of >10,000 m3 of low to moderate PHC impacted mineral soil, up to 7,000 ppm TPH.

The Approach:

EXCO process conducted on aliquots of up to 750 m3. Daily production of 300 m3. A specialized mulcher was used for the project in order to ensure the greatest contact between the oxidant and the impacted soils.

Mineral soils had a total of 500,000 Lof 25% - 50% EHP (enhanced hydrogen peroxide) applied.

The Results:

Treatment of soils was completed in less than 3 months
>90% of mineral soil was remediated to below applicable guidelines
Mineral soils were backfilled and organic soils were left in place for further soil management

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