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NOVEL IN-SITU ADSORPTIVE METHOD TO ADDRESS VINYL CHLORIDE RISK
Lichti, N. and B. Tunnicliff.
RemTech 2017: Remediation Technologies Symposium. Presentation 45, 44 slides, 2017

The first of two case studies focused on PCE, TCE, and daughter products during the sequential application of edible carbon substrate and ZVI followed by an activated carbon-based amendment. This remediation of chlorinated solvents in a sewer bed involved traditional reductants, some VC generation, a nearby property boundary, and subsequent granular activated carbon (GAC)-based amendments application. The second case study showcased remedial efforts for two separate plumes in groundwater—one primarily c-1,2-DCE (70 ppb) and 1,1,1-TCA (300 ppb) and the other mainly c-1,2-DCE (30 ppb) and VC (10 ppb)—over a large aerial extent that required treatment in a 3-month timeframe to facilitate a real estate transaction. The cleanup was accomplished using injections of Trap & Treat® BOS 100®. Two days of pilot-scale testing were completed to refine the full-scale design. Full-scale injections were completed over 12 working days.
Slides: http://www.esaa.org/wp-content/uploads/2017/10/17-Lichti.pdf
Longer abstract: http://www.esaa.org/wp-content/uploads/2017/09/RemTech2017Abstracts-45.pdf



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