Final Bioventing Pilot Test Results Report for Building 735 Pumphouse, Grissom AFB, Indiana
Abstract
The Air Force Center for Environmental Excellence (AFCEE) 1-year bioventing/air sparging pilot test at the Building 735 Pumphouse site at Grissom Air Force Base (AFB), Indiana has been completed. The purpose of this report is to describe the results of 1 year of continued system monitoring of the bioventing/air sparging system installed by Parsons Engineering Science, Inc. (Parsons ES), formerly Engineering-Science, Inc. (ES) at the Building 735 Pumphouse site. The system installation and pilot testing were conducted during the period from October 12 through 23, 1993. Parsons ES returned to the site to conduct additional testing and system monitoring on December 10, 1993, and March 11, June 7, and August 18, 1994. Final monitoring, testing, and soil sampling were conducted during the period from October 17 through 20, 1994. Although initial respiration testing could not be completed due to high water table conditions in October 1993, the respiration tests conducted in June and October 1994, were successful, and microbial fuel degradation rates for the unsaturated soil zone were calculated from these data. Results from these tests are included in this report. The results presented in this report support the initial and 6-month conclusions (ES, 1993b) that the system has been successfully introducing oxygen into the soil gas in the unsaturated zone, locally increasing dissolved oxygen concentrations in the contaminated groundwater, and locally depressing the groundwater level. Microbial fuel degradation should continue to be stimulated by the increased oxygen concentrations in the soil gas and groundwater. Groundwater depression has increased the efficiency of the system by exposing more of the contaminated soil profile to bioventing treatment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1995
- Accession Number
- ADA385174
Entities
Organizations
- Parsons Corporation