Mechanisms controlling toluene removal from saturated soils during in situ air sparging

摘要

In situ air sparging is an effective method for removing volatile organic compounds from saturated soils and groundwater. Removal efficiency levels as high s 98/100 are often reported, and the remediation time is significantly less than that required for conventional pump and teat technology. However, predictions of the time required for contaminant mass removal by air sparging have been approximate at best due to a lack of understanding of the relative importance of the various mechanisms that are responsible for this contaminant removal.