Soil bioventing is one of the most popular modern techniques for removing contaminants from soil. It has recently emerged as one of the most cost-effective and efficient technologies available for vadose zone remediation of petroleum-contaminated sites. This book explains in practical terms how to carry out a bioventing program. It is an interdisciplinary treatment of the subject, covering everything from basic physical and chemical properties of soils to site evaluation, project design, and post-bioventing monitoring. The wide breadth of coverage makes "Soil Bioventing" useful to a large audience, including consulting firms, students, contractors, environmental managers, and anyone who is responsible for supervision of soil cleanup for regulatory reasons.
Introduction Development of Bioventing Oxygen Supply to Contaminated Areas Bioventing Research and Development Structure of U.S. Air Force Bioventing Initiative Field Treatability Studies and Bioventing System Design Principles of Bioventing Physical Processes Affecting Bioventing Microbial Processes Affecting Bioventing Compounds Targeted for Removal BTEX Versus TPH Removal in Petroleum-Contaminated Sites Case Histories of Early Bioventing Studies Site 914, Hill AFB, Utah Tyndall AFB, Florida Site 280, Hill AFB, Utah Site 20, Eielson AFB, Alaska Bioventing Implementation: Site Characterization Activities Existing Data and Site History Review Soil Gas Survey In Situ Respiration Testing Soil Gas Permeability and Radius of Influence Soil Characterization Bioventing Implementation: System Design Determination of Air Flow System Determining Required Air Flow Rates Well Spacing Blowers and Blower Sizing Vent Well Construction Monitoring Point Construction Bioventing Implementation: Performance Monitoring Soil Gas Monitoring In Situ Respiration Testing Quantification of Biodegradation and Volatilization of Hydrocarbons during Extractive Bioventing Surface Emissions Sampling Optional Monitoring: Qualitative Validation of Biodegradation through Stable Carbon Isotope Monitoring Operation and Maintenance Bioventing Implementation: Process Evaluation/Site Closure In Situ Respiration Testing Soil Sampling Costs References Appendix A: Statistical Analyses of U.S. Air Force Bioventing Initiative Data Appendix B: Equipment Specifications and Manufacturers Appendix C: Example Procedures for Conducting Bioventing Treatability Studies Appendix D: Off-Gas Treatment Options Index