Operations and Maintenance Manual for Expanded Bioventing System Site FC-2 Kelly AFB, Texas
Abstract
This Operations and Maintenance Manual has been created as a guide for monitoring and maintaining the performance of the bioventing blower and vent well plumbing at the Fire Training Area (Site FC-2) located at Kelly Air Force Base (AFB). Bioventing is the forced injection of fresh air, or withdrawal of soil gas, to enhance the supply of oxygen for in situ bioremediation. At Site FC-2, one pressure air injection blower unit is used to inject air into the soil, thereby supplying fresh atmospheric air (with approximately 20.8 percent oxygen) to contaminated soils. Once oxygen is provided to the subsurface, existing bacteria aerobically break down fuel residuals. Aerobic biodegradation is much more efficient than anaerobic biodegradation which occurs in soils when the soils are oxygen depleted. Parsons Engineering Science (Parsons ES) has installed an air injection vent well system consisting of six vent wells at Site FC-2. The blower was started on January 26, 1996 and injected flow rates were adjusted so that the injection rates at each vent well are relatively uniform (9.2 to 12.3 cubic feet per minute).
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1996
- Accession Number
- ADA384313
Entities
Organizations
- Parsons Corporation