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, R.L.; et al. (Nov 1993). "An Overview of In Situ Air Sparging". Groundwater Monitoring & Remediation. John Wiley & Sons, Inc. 13 (4): 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" (PDF). Archived from the original (PDF) on 2013-12-02. 
  4. ^ Di Julio, S. S.; Drucker, A. S. "Air-Sparging Remediation: A Study on Heterogeneity and Air Mobility Reduction" (PDF). Journal of Hazardous Substance Research. Kansas State University. 
  5. ^ "Technology Overview Report" (PDF). 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" (PDF). Land Contamination & Reclamation. EPP Publications Ltd. Archived from the original (PDF) on 2016-03-04. 
  8. ^ Bass, David H; et al. "Performance of air sparging systems: a review of case studies". Journal of Hazardous Materials. Elsevier. 72 (2–3): 101–119. doi:10.1016/S0304-3894(99)00136-3. Retrieved 26 December 2016. 
  9. ^ "Air Sparging Equipment Applications". Enviro-Equipment, Inc, Environmental Equipment & Supplies: Rental, Sales, Service & Repair. 
  10. ^ Ji, Wei; et al. (Nov 1993). "Laboratory Study of Air Sparging: Air Flow Visualization". Groundwater Monitoring & Remediation. Wiley Online Library. 13 (4): 115–126. doi:10.1111/j.1745-6592.1993.tb00455.x. 
  11. ^ "A Citizen's Guide to Soil Vapor Extraction and Air Sparging" (PDF). EPA, United States Environmental Protection Agency, Office of Solid Waste and Emergency Response. Sep 2012. 
  12. ^ Suthersan, Suthan S. (1999). "In Situ Air Sparging" (PDF). Remediation engineering : design concepts. CRC Press LLC. 
  13. ^ "Underground Storage Tanks". U.S. Environmental Protection Agency. 

Further reading[edit]