Air sparging

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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[edit]

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[edit]

  1. ^ a b "Air Sparging". CPEO. 
  2. ^ Johnson et al, R.L. (Nov 1993). "An Overview of In Situ Air Sparging". Groundwater Monitoring & Remediation 13 (4). John Wiley & Sons, Inc. pp. 127–135. doi:10.1111/j.1745-6592.1993.tb00456.x. 
  3. ^ Redddy, Krishna R.; A. Adams, Jeffrey. "Cleanup of Chemical Spills Using Air Sparging". 
  4. ^ Di Julio, S. S.; Drucker, A. S. "Air-Sparging Remediation: A Study on Heterogeneity and Air Mobility Reduction". Journal of Hazardous Substance Research 3. Kansas State University. 
  5. ^ "Technology Overview Report". Ground-Water Remediation Technologies Analysis Center. Oct 1996. 
  6. ^ "Air Sparging". Water and Soil Bio-Remediation. 
  7. ^ Reddy, Krishna R.; Tekola, Luesgald (2004). "Remediation of DNAPL source zones in groundwater using air sparging". Land Contamination & Reclamation. 12(2). EPP Publications Ltd. 
  8. ^ Bass et al, David H. "Performance of air sparging systems: a review of case studies". Journal of Hazardous Materials 72 (2–3). Elsevier. pp. 101–119. Retrieved 25 Feb 2000. 
  9. ^ "Air Sparging Equipment Applications". Enviro-Equipment, Inc, Environmental Equipment & Supplies: Rental, Sales, Service & Repair. 
  10. ^ Ji et al, Wei (Nov 1993). "Laboratory Study of Air Sparging: Air Flow Visualization". Groundwater Monitoring & Remediation 13 (4). Wiley Online Library. pp. 115–126. doi:10.1111/j.1745-6592.1993.tb00455.x. 
  11. ^ "A Citizen’s Guide to Soil Vapor Extraction and Air Sparging". EPA, United States Environmental Protection Agency, Office of Solid Waste and Emergency Response. Sep 2012. 
  12. ^ Suthersan, Suthan S. (1999). "In Situ Air Sparging". Remediation engineering : design concepts. CRC Press LLC. 
  13. ^ "Underground Storage Tanks". U.S. Environmental Protection Agency. 

Further reading[edit]

  • "Air Sparging: Savior of Ground Water Remediations or just Blowing Bubbles in the Bath Tub?". Groundwater Monitoring & Remediation 13 (4). Nov 1993. pp. 87–91. 
  • 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.