Enhanced CAH dechlorination in a low permeability, variably-saturated medium

Jennifer P. Martin, Kent S. Sorenson, Lance N. Peterson, Rachel A. Brennan, Charles J. Werth, Robert A. Sanford, Gordon H. Bures, Charles J. Taylor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

An innovative pilot-scale field test was performed to enhance the anaerobic reductive dechlorination (ARD) of chlorinated aliphatic hydrocarbons (CAHs) in a low permeability, variably-saturated formation. The selected technology combines the use of a hydraulic fracturing (fracking) technique with enhanced bioremediation through the creation of highly-permeable sand- and electron donor-filled fractures in the low permeability matrix. Chitin was selected as the electron donor because of its unique properties as a polymeric organic material and based on the results of lab studies that indicated its ability to support ARD. The distribution and impact of chitin- and sand-filled fractures to the system was evaluated using hydrologic, geophysical, and geochemical parameters. The results indicate that, where distributed, chitin favorably impacted redox conditions and supported enhanced ARD of CAHs. These results indicate that this technology may be a viable and cost-effective approach for remediation of low-permeability, variably saturated systems.

Original languageEnglish (US)
Title of host publicationProceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds
EditorsA.R. Gavaskar, A.S.C. Chen
Pages995-1003
Number of pages9
StatePublished - Dec 1 2002
EventProceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds - Monterey, CA., United States
Duration: May 20 2002May 23 2002

Publication series

NameProceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds

Other

OtherProceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds
CountryUnited States
CityMonterey, CA.
Period5/20/025/23/02

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Martin, J. P., Sorenson, K. S., Peterson, L. N., Brennan, R. A., Werth, C. J., Sanford, R. A., Bures, G. H., & Taylor, C. J. (2002). Enhanced CAH dechlorination in a low permeability, variably-saturated medium. In A. R. Gavaskar, & A. S. C. Chen (Eds.), Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds (pp. 995-1003). (Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds).