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Oxygen and Ethene Biostimulation for a Persistent Dilute Vinyl Chloride Plume

Oxygen and Ethene Biostimulation for a Persistent Dilute Vinyl Chloride Plume

Authors :
Angela Verardo
Gail S. Begley
Amanda K. Robb
Susan Kemen
Monica Czarnecki
James F. Begley
Samuel Fogel
Source :
Ground Water Monitoring & Remediation. 32:99-105
Publication Year :
2011
Publisher :
Wiley, 2011.

Abstract

Contamination of groundwater with chlorinated ethenes is common and represents a threat to drinking water sources. Standard anaerobic bioremediation methods for the highly chlorinated ethenes PCE and TCE are not always effective in promoting complete degradation. In these cases, the target contaminants are degraded to the daughter products DCE and/or vinyl chloride. This creates an additional health risk, as vinyl chloride is even more toxic and carcinogenic than its precursors. New treatment modalities are needed to deal with this widespread environmental problem. We describe successful bioremediation of a large, migrating, dilute vinyl chloride plume in Massachusetts with an aerobic biostimulation treatment approach utilizing both oxygen and ethene. Initial microcosm studies showed that adding ethene under aerobic conditions stimulated the rapid degradation of VC in site groundwater. Deployment of a full-scale treatment system resulted in plume migration cutoff and nearly complete elimination of above-standard VC concentrations.

Details

ISSN :
10693629
Volume :
32
Database :
OpenAIRE
Journal :
Ground Water Monitoring & Remediation
Accession number :
edsair.doi...........6b279d3a03c8e8574e98ddc2b9d40710
Full Text :
https://doi.org/10.1111/j.1745-6592.2011.01371.x