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Yu, L., I. Keir, A. Giurici, G. Achari, and C. Langford.
RemTech 2017: Remediation Technologies Symposium. Presentation 17, 28 slides, 2017

Sulfolane, a toxic industrial solvent, has been used extensively to remove hydrogen sulfide and other polar compounds from natural gas. Owing to leaks and spills, the highly soluble compound has found its way into soil and groundwater. In this project, a lab feasibility study was conducted to investigate aerobic degradation of sulfolane in soil collected from a contaminated site. The promising lab results led to a field pilot study of sulfolane degradation using bio-pile technologies. The field work was conducted in Western Alberta, Canada, where ambient temperature varied from -3°C to 30°C from July 22 to October 9. Six bio-piles ranging from 25 m3 to 500 m3 were constructed on the sulfolane-contaminated site with variations in tarp cover, nutrient amendment, and aeration. Results showed that with proper aeration and nutrients, bio-pile treatment removed sulfolane at a rate of 42 mg/kg/day.
Longer abstract: http://www.esaa.org/wp-content/uploads/2017/09/RemTech2017Abstracts-17.pdf
Slides: http://www.esaa.org/wp-content/uploads/2017/10/17-Yu.pdf

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