The problem of aquifer contamination remains one of the greatest challenges facing environmental scientists and engineers. Air sparging, a technique unknown until recently, has emerged with increasing application frequency as an alternative to both the pump-and-treat technology and conventional in situ bioremediation for treating this problem. This book, featuring contributions from the world's most experienced air sparging practitioners, conveys the latest practical experience and information from North America and Europe. Air Sparging for Site Remediation presents an overview of air sparging in general and detailed information on particular air sparging technologies and their applications. The book examines the application of the technology to a variety of contaminants, including hydrocarbons, pesticides, nitrates, and chlorinated hydrocarbons. In addition, these specific topics and more are discussed:
Introductory Article: Overview of Air Sparging (R.L. Hinchee). Enhancing Biodegradation with in Situ Air Sparging: A Conceptual Model (R.L. Johnson). Air Sparging: An Efficient Groundwater and Soils Remediation Technology (M.C. Marley and F. Li). Use of Air Sparging for in Situ Bioremediation (R.A. Brown, R.J. Hicks, and P.M. Hicks). In Situ Bioremediation of Groundwater Containing Hydrocarbons, Pesticides, or Nitrate Using Vertical Circulation Flows (UVB/GZB Technique) (B. Herrling, J. Stamm, E.J. Alesi, G. Bott-Breuning, and S. Diekmann). Bioremediation by Groundwater Circulation Using the Vacuum-Vaporizer-Well (UVB) Technology: Basics and Case Studies (W. Buermann and G. Bott-Breuning). The Design and Management of System Components for in Situ Methanotrophic Bioremediation of Chlorinated Hydrocarbons at the Savannah River Site (K.H. Lombard, J.W. Borthen and T.C. Hazen). Air Sparging Laboratory Study (M.A. Dahmani, D.P. Ahlfeld, W. Ji, and M. Farrell). Microbial and Carbon Dioxide Aspects of Operating Air-Sparging Sites (J.F. Billings, A.I. Cooley, and G.K. Billings). Groundwater Circulation Due to Air Injection: General Aspects and Experimental Results for Layered Subsoil (K. Wehrle and J. Brauns). Applications of in Situ Soil Vapor Extraction and Air Injection (C.G.J.M. Pijls, L.G.C.M. Urlings, H.B.R.J. van Vree, and R. Spuij).