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CASE STUDIES: OVERCOMING ANNOYING CONTAMINANT REBOUND USING ADSORPTIVE TECHNOLOGIES
French, K. | SustainTech, 21 March, Saskatoon, Saskatchewan, 2019, 59 slides.

This presentation discusses two case studies demonstrating the Trap & Treat® Technology as an adsorptive tool that can prevent contaminant rebound during remediation. The first case study was conducted on the neighboring property to a former dry cleaner contaminated with a plume of VOCs. About 450 kg BOS 100®, which combines carbon adsorption using activated carbon (AC) pores and chemical reduction using zero-valent iron to trap contamination , was injected through 17 points over 2 days. After 3 months, VOC concentration fell 35.6% in test plot 1 and 99.1% in test plot 2. The second case study was conducted on a former underground storage tank contaminated with petroleum hydrocarbons. About 2,000 kg BOS 200®, which combines AC, nutrients, and microbes to trap PHC in pores; and 800 kg gypsum mixed in 10,000 L of slurry was injected through 40 points over 3 days. PHC concentrations in some wells were non-detect 8 days after injection. https://www.seima.sk.ca/resources/Documents/SustainTech%202019%20Presentations/SustainTech%20Kevin%20French%202%20presentation.pdf



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