Abstract
The simulator TOUGH2 was adopted to study the air phase flow during in situ air sparging in sands. It was found that the vertical profile of upward air flow is in the shape of water drop before reaching the groundwater table. As the air phase flows upwards, it also moves horizontally, especially when the air reaches the vadose zone. Finally, the zone of influence in air sparging connects the saturated zone with vadose zone and forms a U-shaped area. The air phase saturation degree is symmetrically distributed around sparging well. The air phase saturation degree decreases with the increase of the distance to the sparging well in the horizontal direction. From the sparging point up to the ground, the air phase saturation degree increases first and then decreases.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Nyer, E.K., Palmer, P.L., Carman, E.P., et al.: In Situ Treatment Technology, 2nd edn. CRC Press, Boca Raton (2001)
Hu, L., Meegoda, J., Du, J., et al.: Centrifugal study of zone of influence during air-sparging. J. Environ. Monit. 13(9), 2443–2449 (2011)
Gao, S., Meegoda, J.N., Hu, L.: A dynamic two-phase flow model for air sparging. Int. J. Numer. Anal. Methods Geomech. 37(12), 1801–1821 (2013)
Fatt, I., Klikoff, W.A.: Effect of fractional wettability on multiphase flow through porous media. J. Pet. Technol. 11(10), 71–76 (1959)
Culligan, P.J., Zhu, Y., Germaine, J.T.: Numerical simulation of in situ air-sparging. In: Proceedings of Geo-Frontiers 2005, Austin. Waste Containment and Remediation (2005)
Schima, S., Labrecque, D.J., Lundegard, P.D.: Monitoring air sparging using resistivity tomography. Groundw. Monit. Remediat. 16(2), 131–138 (1996)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Switzerland AG
About this paper
Cite this paper
Liu, Z.B., Liu, S.Y., Chen, Z.L., Wang, Y., Lu, L.L., Du, G.Y. (2018). Three-Dimensional Numerical Analysis of the Air Phase Flow During Air Sparging in Sands. In: Wu, W., Yu, HS. (eds) Proceedings of China-Europe Conference on Geotechnical Engineering. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-97115-5_84
Download citation
DOI: https://doi.org/10.1007/978-3-319-97115-5_84
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-97114-8
Online ISBN: 978-3-319-97115-5
eBook Packages: EngineeringEngineering (R0)