Air sparging for in situ bioremediation of toluene
- Groundwater Technology, Inc., Trenton, NJ (United States)
- Groundwater Technology, Inc., Tampa, FL (United States)
- Groundwater Technology, Inc., Windsor, CT (United States)
Groundwater contamination was discovered at a manufacturing site in New York State. The contamination was due to the use of a burn pit to dispose of waste solvents, primarily toluene and a mixture of chlorinated ethenes. These solvents were partiality absorbed into a sandy fill. Over a period of time, these adsorbed solvents leached into the groundwater and eventually impacted a local wetlands. Of longer term environmental concern was the existence of a municipal water well approximately 1,200 ft downgradient of the site. Air sparging was chosen as the remedial method to address the soil and groundwater contamination on site. Air sparging was chosen as a direct volatilization method and as an oxygen source for bioremediation. This case history illustrates the efficacy and limitations of air sparging for in situ bioremediation applications. The purpose of the paper is to discuss the selection, design, and operation of an air sparging/bioremediation system so that a remediation practitioner can adequately evaluate the use of air sparging for in situ bioremediation applications.
- OSTI ID:
- 467737
- Report Number(s):
- CONF-950483--; ISBN 1-57477-003-9
- Country of Publication:
- United States
- Language:
- English
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