Air sparging
Air sparging, also known as in situ air stripping[1] and in situ volatilization is an in situ remediation technique, used for the treatment of saturated soils and groundwater contaminated by volatile organic compounds (VOCs) like petroleum hydrocarbons[2] which is a widespread problem for the ground water and soil health.[3][4][5][6][7][8]
Mechanism
The subsurface contaminant remediation technique involves the injection of pressurized air into contaminated ground water[1][9][10] enabling the hydrocarbons to change its state from dissolved to vapor state.[11] The air is then sent to the vacuum extraction systems to remove the contaminants.[12][13]
References
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Further reading
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- Ji, Wei, et al. "Laboratory study of air sparging: Air flow visualization." Groundwater Monitoring & Remediation 13.4 (1993): 115-126.
- Marley, Michael C., David J. Hazebrouck, and Matthew T. Walsh. "The application of in situ air sparging as an innovative soils and ground water remediation technology." Ground Water Monitoring & Remediation 12.2 (1992): 137-145.
- Johnson, Richard L., et al. "An overview of in situ air sparging." Ground Water Monitoring & Remediation 13.4 (1993): 127-135.
- Cabassud, C., et al. "Air sparging in ultrafiltration hollow fibers: relationship between flux enhancement, cake characteristics and hydrodynamic parameters." Journal of Membrane Science 181.1 (2001): 57-69.
- Hinchee, Robert E., ed. Air sparging for site remediation. Vol. 2. CRC Press, 1994.
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