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Brown, M., M. Burns, T. Huff, S. Kretschman, and S. Schoenmann.
Abstract Book: AEHS Foundation 34th Annual International Conference on Soils, Sediments, Water and Energy, 15-18 October 2018, p 172, 2018

Application of an activated carbon-based amendment (PlumeStop) and bioremediation treatment of chlorinated aliphatic hydrocarbons (CAHs) were evaluated in a fractured sandstone aquifer. PlumeStop, fermentable electron donor, buffer, nutrients, and organohalide-respiring microbes were injected into the aquifer to transfer dissolved CAHs to the solid phase and stimulate biodegradation of the sorbed contaminants. Contaminant concentrations rapidly declined in the aqueous phase, with total VOC concentrations decreasing as much as 80% at one month post injection and 98% at four months post injection. Daughter products, including ethene and ethane, were detected in groundwater and in situ microcosm (ISM) samples. Corresponding isotopic fractionation of parent compounds and moderate to high Dehalococcoides abundances were also measured in sandstone ISM samples. A video presentation of this project is available to those who choose to register for it at http://www2.regenesis.com/webinar-matt-burns.

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