Enhanced CAH dechlorination in a low permeability, variably-saturated medium
By: J.P. Martin, K.S. Sorenson Jr., L.N. Peterson, R.A. Brennan, C.J. Werth, R.A. Sanford, G.H. Bures, and C.J. Taylor
Edited by: Gavaskar A.R.Chen A.S.C.
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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.
Suggested Citation
Martin, J., Sorenson, K., Peterson, L., Brennan, R., Werth, C., Sanford, R., Bures, G., Taylor, C., 2002, Enhanced CAH dechlorination in a low permeability, variably-saturated medium, in Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA., 20 May 2002 through 23 May 2002, p. 995-1003.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Enhanced CAH dechlorination in a low permeability, variably-saturated medium |
| ISBN | 1574771329 |
| Year Published | 2002 |
| Language | English |
| Larger Work Title | Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds |
| First page | 995 |
| Last page | 1003 |
| Conference Title | Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds |
| Conference Location | Monterey, CA. |
| Conference Date | 20 May 2002 through 23 May 2002 |